JPH04274506A - Electronic equipment - Google Patents

Abstract

PURPOSE:To simplify the adjusting work of each auxiliary wiring board by storing adjusting data, etc., in the memory circuit of each auxiliary wiring board and adjusting each auxiliary wiring board based on the adjusting data. CONSTITUTION:In electronic equipment, such as an editing device which mounts plural auxiliary wiring boards, namely, card boards 10B-10R on a main wiring board, namely, mother board, each card board 10B-10R stores its adjusting data in its own memory circuit 48. Therefore, since each card board 10B-10R is adjusted based on the adjusting data, each card board 10B-10R can be easily adjusted by only rewriting the data. When product data, self-diagnostic data, identifying data, etc., of each card board 10B-10R are stored in the memory circuit 48 in addition to the adjusting data, management of products, self- diagnosing of defective points, detection of wrong housing position, etc., can be performed and the usability of the editing device can be improved.

Description

[Detailed description of the invention]

0001

[Table of Contents] The present invention will be explained in the following order. Industrial application fields Conventional technology Problems to be solved by the invention Means for solving the problems (Figs. 2, 6 and 8) Effects (Figs. 2, 6 and 8) Example (1) Overall configuration (Figures 1 to 8) (2) CPU board (Figure 9) (3) Display of service information, etc. (4) Temperature management (Figures 10 and 11) (5) Operation of the embodiment (6) Effects of the embodiment (7) Effects of other embodiment inventions

0002

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to electronic equipment, and can be applied to electronic equipment such as editing devices.

0003

[Prior Art] Conventionally, in electronic devices such as editing devices, card boards such as a reference signal generation circuit board, mixer circuit board, input circuit board, etc. are loaded onto a motherboard to efficiently mount the circuit boards as a whole. being done.

Therefore, when adjusting each card board, by inserting an extension wiring board between the card board and the motherboard and holding the card board pulled out from the motherboard, semi-fixed resistors, deep switches, etc. can be adjusted. It was designed to be adjustable.

[0005]

[Problem to be solved by the invention] By the way, if each card board could be adjusted without inserting an extension wiring board each time, this kind of adjustment work could be simplified. , is considered convenient.

The present invention has been made in consideration of the above points, and it is an object of the present invention to propose an electronic device that can simplify adjustment work.

[0007]

[Means for Solving the Problems] In order to solve the problems, in the first invention, a main wiring board 10A and a plurality of sub wiring boards 10B to 10B connected to the main wiring board 10A are provided.
10R, the plurality of sub wiring boards 10B to 10R are each sub wiring board 10B.
The main wiring board 10A has a memory circuit 48 that stores data for adjusting ~10R, and the main wiring board 10A adjusts each sub wiring board based on the data for adjusting the sub wiring boards 10B to 10R stored in the memory circuit 48. Adjust 10B to 10R.

Furthermore, in the second invention, the main wiring board 10A has a control circuit 64 for controlling the sub wiring boards 10B to 10R, and the data for adjusting the sub wiring boards 10B to 10R is transmitted to each sub wiring board. Serial transmission is carried out from the wiring boards 10B to 10R to the control circuit 64, and control data is transmitted from the control circuit 64 to each of the sub wiring boards 10B to 10R based on the serially transmitted adjustment data for the sub wiring boards 10B to 10R. The sub wiring boards 10B to 10R are adjusted based on the control data by serial transmission.

Furthermore, in the third invention, the memory circuit 48 stores product data specific to each of the sub wiring boards 10B to 10R in addition to the data for adjusting the sub wiring boards 10B to 10R, and Based on the control data, product data is output to the main wiring board 10A.

Furthermore, in the fourth invention, the memory circuit 48 stores data for self-diagnosis in addition to data for adjusting the sub wiring boards 10B to 10R,
0A has a control circuit 64 that controls the sub wiring boards 10B to 10R, and the control circuit 64 controls the sub wiring boards 10B to 10R.
Each sub wiring board 10B based on the data for 10R adjustment
~10R, and each sub wiring board 10B~1
The self-diagnosis data stored in the 0R memory circuit 48 is sequentially read, and based on the reading results, an abnormality in each of the sub-wiring boards 10B to 10R is detected.

Furthermore, in the fifth invention, the memory circuit 48 stores identification data for each of the sub wiring boards 10B to 10R in addition to data for adjusting the sub wiring boards 10B to 10R, and stores identification data for each of the sub wiring boards 10B to 10R. 10A is the sub wiring board 10B~
10R, the control circuit 64 adjusts each sub wiring board 10B to 10R based on data for adjusting the sub wiring boards 10B to 10R, and adjusts each sub wiring board 10B to 10R. Based on the identification data of 10R,
Confirm that the sub wiring boards 10B to 10R are stored in the correct position.

Furthermore, in the sixth invention, the control circuit 6
4 inputs and outputs input/output data to and from a predetermined external device 60 via an input/output circuit 68, and a memory circuit 48 inputs and outputs input/output data in addition to data for adjusting the sub wiring boards 10B to 10R. Store.

[0013]

[Operation] Secondary wiring board 10 stored in memory circuit 48
If each sub wiring board 10B to 10R is adjusted based on the adjustment data for B to 10R, the adjustment can be easily performed by simply rewriting the adjustment data in the memory circuit 48. Furthermore, if adjustment data etc. are serially transmitted at this time, the overall configuration can be simplified accordingly, but in addition to the adjustment data, each sub wiring board 10B to 10
By storing R's unique product data, self-diagnosis data, and identification data, the product data can be used for product management, the self-diagnosis data can be used to discover abnormalities, and the identification data can be used. This makes it possible to discover errors in the storage position, etc., thereby improving the usability of the electronic device 1.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings.

(1) Overall configuration In FIG. 1, reference numeral 1 denotes an editing device as a whole, which is housed in a predetermined adjustment desk or the like and is connected to a switch on the adjustment desk to perform editing processing. For this reason, in the editing device 1, the inside of the housing 3 is divided into upper and lower parts, and a first circuit consisting of a switching regulator circuit is installed in the upper part.
- Third power supplies 2A to 2C are arranged, and air cooling fans 4A to 4C are arranged.

Furthermore, a thermistor 6 is arranged between the power supplies 2A to 2C and the fans 4A to 4C in the upper part of the casing 3, so that the temperature of the upper part of the casing 3 can be detected through the thermistor. being done. A panel 8 is attached to the front of the lower part of the housing 3, and as shown in FIG.
It is designed to accommodate R. That is, in the lower part of the housing 3, a mother board 12 is arranged on the back side, and connectors 14A to 14R, 16A to 16R are connected to the mother board 12.
are arranged so that

With this, in the editing device 1, each card board 10A to 10R is slid along the guide rail 18, and the connectors 20A to 20R, 22A to 22R of each card board 10A to 10R are connected to the connector on the mother board side. By inserting the card boards 14A to 14R and 16A to 16R, the card boards 10A to 10R and the mother board 12 are connected, respectively, and the editing device 1 is formed as a whole.

Furthermore, in the case 3, a unique throttle number is assigned to each card board storage position, and each predetermined card board 10A to 10R is stored, and at this time, the type of editing device is assigned to each card board storage position. By accommodating dedicated card boards according to the requirements, first and second editing devices having different functions can be constructed as a whole.

That is, as shown in FIG. 3, the editing device 1 has a CPU board housed in the throttle number 1 storage position, and the editing device 1 as a whole can be controlled using the CPU board. Furthermore, the editing device 1 places the dedicated generator board A or B (which generates various reference signals necessary for processing inside the editing device) respectively in the first and second editing devices in the storage position of the throttle number 2. It is designed to be stored.

Further, in the editing device 1, a set of two wipe generators are housed in the housing positions of throttle numbers 3 and 4, and wipe processing is performed using the desired video signals. A key processor and a mixing board are housed in the housed position, so that dissolve processing and the like can be performed. Similarly, the editing device 1 stores a key processor and a mixing board in the storage positions of throttle numbers 7 and 8, a mixing board in the storage position of throttle number 9, and an output board for outputting video signals in the storage position of throttle number 10. It is designed to store.

Furthermore, the editing device 1 has a throttle number 11.
A set of two chroma key boards is stored in the storage positions of 1 and 12, and in this case, chroma key boards A or B with different operations are stored in the first and second editing devices, thereby allowing the desired video signal to be output. It is designed to allow chroma key processing. Furthermore, the editing device 1 stores a matte generator board for generating a background color in the storage position of throttle number 13, and stores a matte generator board for generating a background color in the storage position of throttle number 14, which is used for storing different still images in the first and second editing devices. Input boards for inputting 8 channels of video signals are housed in memory boards at the housing positions of throttle numbers 15 to 18, respectively.

Note that each of the card boards 10A to 10R has the same shape, so that even if they are inserted in the wrong storage position, they can be connected to the mother board 12.

In the mother board 12, connectors 14A to 14A to 1 are arranged corresponding to the card boards stored in each storage position.
4R and 16A to 16R are connected. Furthermore, in the motherboard 12, the connector 14A
〜14R, 16A〜16R to supply 2A power to the CPU board of throttle number 1,
Power from the power source 2B is supplied to card boards with throttle numbers 2-9, and power from the power source 2C is supplied to card boards with throttle numbers 10-18.

Further, on the mother board 12, the five terminals of the connectors 14A to 14R are connected to the power supply or ground line according to the wiring pattern, thereby generating a throttle address ADS corresponding to each throttle number. There is. As a result, in the editing device 1, after each card board is inserted, the throttle address ADS at the storage position can be detected via the card board.

Furthermore, in the mother board 12, the connectors 14A to 14R are commonly connected to form a bus BUS for serial data transmission, and thereby control data and the like can be serially transmitted together with a predetermined clock signal. It is done like this. Correspondingly, in card boards 10A to 10R, connectors 22A to 22R are assigned for signal transmission, whereas connector 20A is assigned for signal transmission.
~20R form a bus line.

Furthermore, at this time, as shown in FIG.
In the card substrates 10B to 10R other than the board, serial interface circuits (SIF) 30 are connected to the bus lines BUS of the connectors 20B to 20R, respectively. It is designed to take in serially transmitted control data and to send out various output data in response to the control data.

That is, as shown in FIGS. 5 and 6, when address data ADD (FIG. 5(B)) is input in synchronization with clock signal CK (FIG. 5(A)), the serial interface circuit 30 , the address data ADD is taken into a comparison circuit (COMP) 32 via a buffer circuit 31. Here, the comparison circuit 31 connects the connectors 20B to 20B.
Throttle address ADS of card storage position via R
It is detected whether the first 5 bits of address data ADD and the throttle address ADS match.

If a positive result is obtained here, serial interface circuit 30 outputs a control signal to decoder circuit 34, and in response to this, decoder circuit 34 takes in address data ADD. Here, the decoder circuit 34
is based on the parity code P assigned to the end of the address data ADD.
If no error is detected here, IC
Access the integrated circuit specified by address data ICAD.

In each card board 10A to 10R, each circuit block is integrated into an integrated circuit, and IC address data ICAD is assigned to each integrated circuit. That is, when the register circuit 36 is specified by the IC address data ICAD, the decoder circuit 34 outputs the subsequent register address REGAD to the serial-parallel conversion circuit (S/P) 37.

The serial-to-parallel conversion circuit 37 takes in the register address REGAD based on the clock signal CK input via the buffer circuit 38, converts it into parallel data, and outputs it to the register circuit 36. Furthermore, the serial-to-parallel conversion circuit 37 converts the write data WDA that is subsequently inputted via the buffer circuit 39.
The TA (FIG. 5(C)) is converted into parallel data and output to the register circuit 36.

The register circuit 36 has a register address R.
Write data to the area specified by EGAD to WDATA
and retain the updated content. Here, the register circuit 36 is mounted on each of the card boards 10B to 10R in place of a conventional deep switch for operation setting, and updates the area specified by the register address REGAD with the write data WDATA to update the area designated by the register address REGAD with the write data WDATA. It is possible to switch the operation setting state of ~10R.

In practice, in this type of editing apparatus, since the format of the video signal differs depending on the destination, it is necessary to switch the setting states of the card boards 10B to 10R for each destination. Therefore, in this embodiment, by switching the contents of the register circuit 36, the setting states of the card boards 10B to 10R can be easily switched.

Furthermore, at this time, in the editing device 1,
By serially transmitting this type of data, the overall configuration is simplified.

On the other hand, the decoder circuit 34 converts the digital-to-analog converter circuit 4 using the IC address data ICAD.
If 0 is specified, the serial/parallel conversion circuit (S/
P) Outputs the following register address REGAD to 41. Here, the serial-to-parallel conversion circuit 41 takes in the register address REGAD based on the clock signal CK, converts it into parallel data, and outputs it to the digital-to-analog conversion circuit 40.

Furthermore, the serial-parallel conversion circuit 41
Subsequently, the input write data WDATA is converted into parallel data and output to the digital-to-analog conversion circuit 40. Corresponding to this, digital-to-analog conversion circuit 4
0 converts the write data WDATA into an analog signal and then outputs it to predetermined channels CH1 to CHK specified by the register address REGAD.

Here, the digital-to-analog conversion circuit 40 is connected to each card board 10B to 10 instead of the conventional semi-fixed resistor.
In place of the reference signal for setting operating characteristics which is mounted on the semi-fixed resistor and is output from the semi-fixed resistor, the analog-converted output signal is output. Thereby, the digital-to-analog conversion circuit 40 switches the write data WDATA of the digital-to-analog conversion circuit 40, adjusts the circuit to be adjusted 42 of each card board 10B to 10R, and switches the operating characteristics of each card board 10B to 10R. is being done.

In practice, in this type of editing apparatus, it is necessary to switch not only the format of the video signal but also the operating characteristics of each card board depending on the destination and customer. Therefore, in this embodiment, by switching the write data WDATA of the digital-to-analog conversion circuit 40, the operating characteristics of the card substrates 10B to 10R can be easily switched.

On the other hand, when the gate circuit 44 or 46 is designated by the IC address data ICAD, the decoder circuit 34 similarly outputs the register address REGAD to the gate circuit 44 or 46. At this time, when the read/write bit R/W of the address data ADD has risen to H level, the decoder circuit 34 determines that it is the read mode, and uses the monitor determined by the register address REGAD via the gate circuit 44 or 46. outputs the data RDATA to the bus BUS.

Here, the gate circuit 44 or 46 takes in the terminal voltage of the circuit to be adjusted 42 necessary for detecting the operation of the circuit to be adjusted 42 through an analog-to-digital conversion circuit (not shown). , can be output to the bus BUS via a serial-to-parallel conversion circuit (not shown), so that the editing device 1 can check the operating state of the adjusted circuit 42 based on the monitor data RDATA. It has been made possible.

Furthermore, when the memory circuit 48 is specified by the IC address data ICAD, the decoder circuit 34 similarly outputs the register address REGAD to the serial-parallel conversion circuit 50. Parallel serial conversion circuit 50
takes in the register address REGAD, converts it into parallel data, and outputs it to the memory circuit 48.

When the address data ADD is set to the read mode, the decoder circuit 34 switches the buffer circuit 52 to the operating state, thereby reading out the contents of the memory circuit 48 from a predetermined area determined by the register address REGAD. Thereafter, it is output to the bus BUS via the parallel-serial conversion circuit 54. Thereby, in the editing device 1, desired data stored in the memory circuit 48 can be sequentially read out for each card board 10B to 10R.

When the write mode is set in this state, the decoder circuit 34 controls the operation of the buffer circuit 52 to be stopped, and thereby transfers the write data WDATA input via the bus BUS to the register address REGAD.
The data is stored in a predetermined area of the memory circuit 48 determined by .

That is, the serial-parallel conversion circuit 50 converts the register address REGAD into parallel data and outputs it to the memory circuit 48, and subsequently converts the write data WDATA into parallel data and outputs it to the memory circuit 48. Write data WDATA
is stored in a predetermined area of the memory circuit 48. Thereby, in the editing device 1, the contents of the memory circuit 48 can be rewritten while the card boards 10B to 10R are housed.

The memory circuit 48 is composed of a rewritable read-only memory circuit, and is capable of storing 16 pages of information as shown in FIG. That is, the memory circuit 48 is configured to store 32 bytes of data in each page, and memory check data for self-diagnosis is stored in the 0th page. Here, the memory check data for self-diagnosis is formed by adding common test data to the throttle address where each card board is stored.

Furthermore, the memory circuit 48 is configured to store format data of each card board on the first page,
This allows the signal format (for example, NTSC system, etc.) of each card board to be identified. Furthermore, the memory circuit 48 stores data representing the properties of each card board on pages 2 to 5, including adjustment data for the circuit to be adjusted 42 (hereinafter referred to as volume data) and setting data for the register circuit 36 ( (hereinafter referred to as switch data), etc.

Furthermore, the memory circuit 48 stores data for product management of each card board on pages 6 to 9, and stores the manufacturing company name, manufacturing date, lot number, product number, etc. as the data. It is designed to allow service personnel and the like to freely record service information on pages 10 to 15.

Each data in the memory circuit 48 is stored in the adjustment process at the time of factory shipment. At this time, for memory check, format, and product information, predetermined data is recorded according to the destination of each card board, whereas for switch data and volume data,
After inputting a predetermined reference signal to the editing device 1 and setting it in a test operation state, predetermined data is recorded based on the monitor data outputted via the gate circuits 44 and 46. There is. This allows each card board 1
In 0B to 10R, the characteristics of each card board 10B to 10R are adjusted to the characteristics corresponding to the product number of the card board by adjusting the settings of the circuit to be adjusted 40 based on the switch data and volume data of the memory circuit 48. It is designed to be configurable and adjustable.

Further, when the throttle address ADS is specified by the IC address data ICAD, the decoder circuit 34 takes in the throttle address ADS of the connectors 14B to 14R, and then converts a predetermined parallel-to-serial conversion circuit (not shown). It is output to the bus BUS via the bus BUS. As a result, each card board 10B to 10R sends out the throttle address ADS following the data in the memory circuit 48, so that it can be determined from the outside whether each card board 10B to 10R is stored in the correct storage position. It is designed to be easy to judge.

Further, when the thermistor 24 is designated by the IC address data ICAD, the decoder circuit 34 outputs a control signal to the switch circuit 56 to turn the switch circuit 56 on.

Here, the thermistor 24 is attached to each card board 1.
They are mounted at substantially the same position on the rear side of the boards 0A to 10R (FIG. 2), and are connected to the power supply line VCC via a resistor 58. Furthermore, the thermistor 24 has a resistor 5
8 side terminal voltage can be output to the mother board 12 via the switch circuit 56, and thereby the editing device 1
The temperature of each card board 10A-10R can be detected via the thermistors 24A-24R.

(2) CPU Board As shown in FIG. 8, the CPU board 10A is connected to each of the card boards 10B to 10R via the mother board 12.
The operation of the card boards 10B to 10R can be switched in response to the switching operation of the switcher 60, thereby switching the operation of the editing apparatus 1 as a whole. Further, the CPU board 10A selectively takes in the terminal voltage of the thermistor 24 mounted on each card board 10B to 10R via the data acquisition line LD, and supplies it to an analog-to-digital conversion circuit (A/D) 62.

Furthermore, the CPU board 10A provides the output data of the analog-to-digital conversion circuit 62 to the central processing unit (CPU) 64, so that the central processing unit 64 can detect the temperature of each card board 10B to 10R. is being done. Furthermore, CPU board 1
0A is serial interface circuit (SIF) 66
The central processing unit 64 and the bus BUS are connected via a serial input/output circuit (SIO) 68, whereas the central processing unit 64 and an external device (in this case, a switch) 60 are connected via a serial input/output circuit (SIO) 68. This allows the operation of each card board 10B to 10R to be controlled by the external device 60.
It is designed so that it can be switched depending on the situation.

As shown in FIG. 9, when the editing apparatus 1 is powered on, the central processing unit 64 executes a self-diagnosis program to check the overall operation of the editing apparatus 1. That is, the central processing unit 64 performs step SP
1 to step SP2, where the card board 1 is sequentially
Address data is output to 0B-10R, and memory check data and throttle address ADS are taken in for each card board 10B-10R.

Next, the central processing unit 64 moves to step SP3, where it determines whether or not erroneous data has been input for all card boards 10B to 10R, based on the common portion of the memory check data. If a positive result is obtained, the process moves to step SP4.

Here, the central processing unit 64 displays an error message on the monitor device of the switcher 60, and then
The process moves to step SP5 and a predetermined alarm is activated, and then the process moves to step SP6 to end the processing procedure. In other words, if incorrect data is input for all card boards 10B to 10R, the mother board 12
, the serial interface circuit 66 of the CPU board 10A, or the power supply can be determined to be malfunctioning.

Therefore, in this case, the CPU controls the operation of the editing device 1 to be stopped after displaying these items considered to be failure points as error messages. As a result, the editing device 1 is able to self-diagnose the presence and content of a failure and issue a warning at the start of use, thereby improving the usability of the editing device 1 accordingly.

On the other hand, if a negative result is obtained in step SP3, the central processing unit 64 moves to step SP7, where it determines whether incorrect data has been input for all card boards 10B to 10I with slot numbers 2 to 9. If a positive result is obtained here, the process moves to step SP8.

That is, if incorrect data is input for all of the card boards 10B to 10I with slot numbers 2 to 9, it can be determined that the power supply 2B common to the card boards 10B to 10I has failed. Therefore, the central processing unit 64 displays the item considered to be the location of the failure as an error message, and then proceeds to step SP.
Move on to 5.

As a result, the editing device 1 is capable of diagnosing and displaying more detailed failure details, thereby improving usability.

On the other hand, if a negative result is obtained in step SP7, the central processing unit 64 moves to step SP9, where it determines whether incorrect data has been input for all of the card boards 10J to 10R with throttle numbers 10 to 18. If a positive result is obtained here, the process moves to step SP10. In other words, if incorrect data is input for all card boards 10J to 10R with throttle numbers 10J to 10R, the card board 10J
It can be determined that the common power supply 2C for ~10R has failed, and after displaying the message of the failure, the central processing unit 64 moves to step SP5.

On the other hand, if a negative result is obtained in step SP9, the central processing unit 64 moves to step SP11, where it determines whether or not incorrect data has been input for the card boards 10B to 10R of the specific slot number. , If a positive result is obtained here, the process moves to step SP12. In other words, if incorrect data is input for the card boards 10B to 10R of a specific slot number, the memory circuit 4 of the card boards 10B to 10R
8. It can be determined that either the fuse or the serial interface circuit 30 has failed, and the central processing unit 64 displays a message indicating the failure, and then proceeds to step SP5.

[0062] As a result, in the editing device 1, abnormalities can also be detected in the individual card boards 10B to 10R, and the usability of the editing device 1 can be improved accordingly.

Furthermore, if a negative result is obtained in step SP11, the central processing unit 64 proceeds to step SP11.
Move to step 13 and enter the adjustment mode here. Here, the central processing unit 64 compares the memory check data of the card boards 10B-10R with the throttle address ADS, and determines whether each card board 10B-10R is housed in the correct position.

That is, in this type of editing device 1, it is rare for the editing device 1 to be shipped from the factory with all of the card boards 10B to 10R stored, and the user is allowed to select optional boards as necessary. ing.

In reality, it is rare that all of the card boards described above in FIG. 3 are mounted as standard, and the card boards enclosed in parentheses are treated as options. For this reason, the user may misplace the card board and the entire editing device 1 may become inoperable.

Therefore, if the error in the card board storage position is detected based on the throttle address ADS and memory check data as in this embodiment, even if the user mistakes it as a failure, service can be provided quickly. , the usability of the editing device 1 can be improved accordingly. Thus, if the card boards 10B-10R are not housed in the correct position, the central processing unit 64 will display a message.

Next, the central processing unit 64 reads the product information from the memory circuit 48 and stores the product information on the CPU board 10.
A comparison result is obtained with the contents of a memory circuit (not shown) mounted in A, and based on this, it is determined whether each card board can be mounted on the editing device 1. That is, as described above, in this type of editing device 1, a card board can be added as an option, and various products are available for the card board to be added depending on the signal format and the like.

[0068] Therefore, it is possible for a user to order the wrong card board or ship the wrong card board. We can serve you as quickly as you like. Thus, the card substrates 10B-1
In the case of a product for which 0R cannot be implemented, the central processing unit 64 displays a message to that effect.

On the other hand, when the card boards 10B to 10R can be mounted, the central processing unit 64 sequentially reads the switch data and volume data from the memory circuit 48, and applies the read data to each card board 10B to 10R.
R analog-to-digital conversion circuit 40, register circuit 3
Output to 6. Thereby, in the editing device 1, each of the card boards 10B to 10R is adjusted based on the adjustment and setting information set in each of the card boards 10B to 10R.

In this way, even if a card board is inserted as an option, all that is required is to adjust the card board at the time of factory shipment and store the information in the memory circuit 48.
Desired characteristics can be maintained reliably. In practice, when this type of card board is supplied as an option, there have been cases where the user erroneously manipulates the semi-fixed resistor or the like, resulting in deviations in the characteristics that have been painstakingly adjusted. Further, after long-term use, the characteristics of the semi-fixed resistor itself changed, and as a result, the operating characteristics of the card substrate sometimes deviated from the initial characteristics.

Therefore, by storing adjustment information in the memory circuit 48 and making adjustments based on the information, such deviations in characteristics can be prevented and the usability of the editing device can be improved. can be improved. Furthermore, by doing this, when adjusting the entire editing device 1, each card board 10B to 10R can be adjusted without having to insert an extension board one by one.
Each card board 10B to 10R can be adjusted based on the output data of the gate circuits 44 and 46 mounted on the card board 10B to 10R.

That is, in the editing device 1, an adjustment device having a microcomputer structure is connected in place of the switcher 60 during factory adjustment, and the volume data can be updated while monitoring the monitor data with the adjustment device. ing. As a result, the editing device 1 can simplify the adjustment work and automate the adjustment work itself. In fact, in this type of electronic equipment, even when using a semi-fixed resistor, the adjustment work can be automated by using a dedicated jig.

However, since this type of editing device 1 is produced in small quantities with a wide variety of products, if such a specialized jig is used, it becomes necessary to prepare various jigs depending on the type of board. Ta. However, as in this embodiment, if a predetermined adjustment device is used to monitor the output data of the gate circuits 44 and 46 and rewrite the data in the memory circuit 48, the adjustment work can be easily automated. .

In this way, in the central processing unit 64, when the adjustment work is completed, it moves to step SP14, switches to the editing mode, outputs control data to each card board in response to the user's operation, and thereby controls the editing device. 1. Execute the original editing process. Further, when the editing work is completed, the central processing unit 64 moves to step SP6 in response to the user's operation, and ends the processing procedure.

(3) Display of service information, etc. The central processing unit 64 displays service information when predetermined control data is input from the control device with a microcomputer structure connected instead of the switcher 60. Switch to information display mode. Here, the central processing unit 64
In response to the operator's operation, each card board 10B
After reading out the product information and service information stored in the memory circuit 48 of ~10R, the product information and service information are output to the control device via the serial input/output circuit 68.
View service information.

Furthermore, when new service information, etc. is input through the serial input/output circuit 68 in this state, the central processing unit 68 outputs the service information as write data WDATA to the corresponding card board, and writes the service information to the corresponding card board. The service information is stored in the memory circuit 48 of the board. In this way, the service person at the customer site can
The history of each card board can be easily grasped, and it is possible to easily check when and what kind of maintenance was performed.

[0077] Therefore, the serviceability of the editing device 1 can be improved accordingly, and the usability can be improved accordingly. Furthermore, if product information is stored in the memory circuit 48 of each card board in this way, the product information can be used to manage each card board at a factory or the like, thereby simplifying product management. be able to.

In practice, in this type of card board,
As mentioned above, the existence of various card substrates of the same format but with different adjustments has resulted in the drawback that product management is complicated. However, if products can be managed in this way, they can be managed easily and reliably.

Thus, the product information, together with memory check data, format data, switch data, etc., is stored in the memory circuit 48 during adjustment at the factory, and is updated during service as necessary.

(4) The temperature management central processing unit 64 controls each card board 1 when the power is turned on.
The memory circuits 48 from 0B to 10R are accessed, and at this time temperature data is loaded together with switch data and the like. Here, the temperature data is obtained by operating the editing device 1 at a predetermined temperature for a long time, and recording the saturation voltage (hereinafter referred to as set saturation voltage) of the thermistor 24 mounted on each card board 10B to 10R at this time. (FIG. 7), thereby recording the temperature of each card board when operated in a constant environment.

After loading the temperature data, the central processing unit 64 then loads each card 10B to 1 immediately after the power is turned on.
For 0R, the terminal voltage of each thermistor 24 is detected. Furthermore, the central processing unit 64 corrects the loaded set saturation voltage based on the detected terminal voltage.

[0082] As a result, the central processing unit 64 determines that if the editing device 1 operates normally at the ambient temperature at which the editing device 1 is currently placed, each card board 10B
It is designed to detect the temperature of ~10R. In this state, the central processing unit 64 executes the processing procedure shown in FIG. 10 at the time of reset and at predetermined intervals, and monitors the temperature of the card board.

That is, the central processing unit 64 moves from step SP20 to step SP21, where it sequentially detects the terminal voltage of the thermistor 24 for each card board 10B to 10R, thereby detecting the terminal voltage of each card board 10B to 10R.
Detects the temperature of 0R. Next, the central processing unit 64 moves to step SP22, where it processes each card board 10B.
~10R is distributed within a predetermined range, it is determined whether the temperature distribution of each card board 10B~10R is uniform. If an affirmative result is obtained, step SP23 Move to.

Here, the central processing unit 64 determines whether the temperature of each card board 10B to 10R is within the operating range, and
If a positive result is obtained here, the process moves to step SP24 and the processing procedure ends. In contrast, step SP2
If a negative result is obtained in step 3, the central processing unit 6
In Step 4, the process moves to step SP25, where the alarm is activated, and then the process moves to step SP24, where the processing procedure ends.

[0085] As a result, the editing device 1 is used to the extent that its operation can be guaranteed, and malfunctions of the editing device 1 are prevented.

On the other hand, if a negative result is obtained in step SP22, the central processing unit 64 moves to step SP26, where the central processing unit 64 determines whether the temperature has increased by obtaining a comparison result with the measurement result one cycle before. Decide whether or not. If a positive result is obtained here, the central processing unit 64
Then, the process moves to step SP27, where a predetermined error message is displayed, and then the process moves to step SP25, where the alarm is activated.

In other words, if the temperature distribution of each card board 10B to 10R is not uniform and the temperature rises compared to the measurement result one cycle ago, an excessive current may flow due to shorts or IC failures in the card board. It can be determined that Therefore, in this case, the central processing unit 64 displays an error message to that effect to alert the user and prevent the failure from expanding.

On the other hand, if a negative result is obtained in step SP26, the central processing unit 64 proceeds to step SP28, displays a predetermined error message, and then proceeds to step SP25 to activate the alarm. In other words, if the temperature distribution of each card board 10B to 10R is not uniform and the temperature has not increased with respect to the measurement result one cycle ago, it can be determined that the temperature distribution has been disturbed due to a temperature drop, and in this case, there is a power supply failure. , fuse blown, IC
It can be determined that the power consumption has been reduced due to a failure or the like.

Therefore, in this case, the central processing unit 64 displays an error message to that effect to alert the user and prevent the failure from expanding. If no failure is found in this processing procedure, the central processing unit 64 executes the processing procedure shown in FIG. 11 to detect the presence or absence of a failure inside the casing 3 of the editing device 1.

That is, the central processing unit 64 moves from step SP30 to step SP31, and here the
Inside, the terminal voltage of the thermistor 6 is detected, and the temperature inside the housing 3 is thereby detected. Next, the central processing unit 64 moves to step SP32, where it determines whether or not the fans 4A to 4C are rotating. If a positive result is obtained here, the central processing unit 64 moves to step SP33, where it determines whether the temperature is within the operating range. to judge.

[0091] If the central processing unit 64 obtains a positive result, it moves to step SP34 and ends the processing procedure. As a result, the editing device 1 is used to the extent that its operation can be guaranteed, and malfunctions of the editing device 1 are prevented.

On the other hand, if a negative result is obtained at step SP33, the central processing unit 64 moves to step SP36 and displays a predetermined error message. Next, the central processing unit 64 moves to step SP35, sets the alarm to the operating state, and then moves to step SP35.
The process moves to P34 and ends the processing procedure.

In other words, if the temperature exceeds the set range even though the fans 4A to 4C are rotating, it is possible that the fans 4A to 4C are clogged or the rotation detection mechanism of the fans 4A to 4C is malfunctioning. If left as is, it may develop into a serious malfunction. Therefore, the central processing unit 6
No. 4 is designed to alert the user to the problem by displaying an error message to that effect, thereby preventing the failure from expanding.

On the other hand, if it is determined in step SP32 that the fans 4A to 4C are not rotating, a negative result is obtained and the central processing unit 64
Proceeding to step SP37, a predetermined error message is displayed. Next, the central processing unit 64 executes step SP.
After moving to step SP35 and raising the alarm to an operating state, the process moves to step SP34 and ends the processing procedure.

In other words, if the fans 4A to 4C are not rotating, there may be a failure in the fans 4A to 4C themselves or a failure in the power supply for the fan motor, and if the editing device 1 is used in this state, the internal temperature will rise. Eventually, abnormalities may occur in various parts. Therefore, the central processing unit 64 displays an error message to that effect to alert the user and prevent the occurrence of the abnormality.

On the other hand, if no failure is found in the processing procedure, the central processing unit 64 corrects each volume data based on the corrected set saturation voltage, and uses the corrected volume data to control each card board 10B to 10R. The adjusted circuit 42 is adjusted. In fact, in devices that use this type of analog-to-digital converter circuit, serial-to-parallel converter circuit, etc., it is necessary to temperature-compensate these circuits in order to ensure that they can operate over a wide temperature range. .

Therefore, in this embodiment, the temperature of each card board 10B to 10R is monitored using the thermistor 24, and the preset volume data is corrected and adjusted based on the temperature detection result to adjust the temperature of the affected card board. Adjustment circuit 4
2, thereby making it possible to temperature-compensate the entire editing device 1 easily and reliably.

Furthermore, when a predetermined control device is connected instead of the switcher 60 and the central processing unit 63 is set to monitor mode via the control device, the central processing unit 63 outputs the temperature detection result of the card board, etc. to the control device. do. As a result, the editing device 1 is able to monitor internal temperature distribution, etc. as needed, and is able to quickly analyze failures, find failure locations, and the like.

(5) Operation of the embodiment In the above configuration, each card board 10B of the editing device 1
~10R is the memory check data in the memory circuit 48,
Format data, switch data, etc. are stored and shipped. As a result, when starting up, in the editing device 1,
By reading the memory check data of each card board 10B to 10R to the CPU board 10A and making a judgment,
Self-diagnose the failure location.

Further, when the self-diagnosis is completed, a comparison result between the memory check data and the throttle address assigned to each throttle is obtained, and it is determined from this whether each card board is stored in the correct storage position. Subsequently, the editing device 1 reads the product information of each of the card boards 10B to 10R to the CPU board 10A, thereby determining whether each of the card boards 10B to 10R is a board applicable to the editing device 1.

[0101] Further, the editing device 1 includes each card board 10B.
By reading the switch data and volume data of ~10R and sending them back to each card board 10B to 10R, each card board is adjusted to the characteristics at the time of shipment from the factory. As a result, the editing device 1 sets the characteristics of the entire editing device 1 to a predetermined state, and then switches the switch 60 to be operated subsequently.
A desired editing process is executed in response to the operation.

On the other hand, at the time of service, a dedicated control device is connected in place of the switcher 60 in the same way as at the time of factory shipment, and the product information of each card board 10B to 10R is transmitted via the control device and the CPU board 10A. and service information are read and updated as necessary. Thereby, the serviceability of the editing device 1 can be improved.

On the other hand, at startup, the editing device 1 loads temperature data from each memory circuit 48 and detects a normal operating temperature. In this state, the editing device 1 detects the temperature of each card board 10B to 10R at the time of reset and at predetermined intervals, and detects an abnormality in the editing device 1 based on the detection results.

Furthermore, an abnormality in the editing device 1 is similarly detected using the thermistor mounted on the upper part of the housing 3 as a reference. Furthermore, the entire editing device 1 is temperature-compensated by correcting and outputting the volume data based on the detected temperature data. Furthermore, the temperature detection result is outputted so that it can be monitored externally.

(6) Effects of Embodiment According to the above configuration, adjustment data is stored in the memory circuit 48 of each card board 10B to 10R, and based on the adjustment data, each card board 10B to 10R is By adjusting, you can simply rewrite the adjustment data.
Each card board 10B to 10R can be easily adjusted.

Furthermore, by serially transmitting adjustment data, etc. at this time, the overall configuration can be simplified, and in addition to the adjustment data, each card board 10B to 10
By storing R product data, self-diagnosis data, identification data, etc., the data can be used for product management, etc., and the usability of the editing device 1 can be improved.

(7) Other Embodiments In the above embodiment, one of the card boards is
Although the case has been described in which the CPU board is assigned to the U board and the whole is controlled by the CPU board, the present invention is not limited to this, and the motherboard may be assigned to the CPU board and the whole is controlled by the motherboard.

Further, in the above embodiment, a case was described in which 18 card substrates were used, but the present invention is not limited to this, but can be widely applied to cases where various numbers of card substrates are used as necessary. Can be done.

Further, in the above-described embodiments, the case where the present invention is applied to an editing device has been described, but the present invention is not limited to this, but can be applied to various electronic devices using a main wiring board and a plurality of sub wiring boards. It can be widely applied to

[0110]

As described above, according to the present invention, adjustment data, product data, self-diagnosis data, identification data, etc. are stored in the memory circuit of each sub-wiring board, and the adjustment data By adjusting each sub-wiring board based on the above, each card board can be easily adjusted by simply rewriting the adjustment data, and the adjustment work can be simplified accordingly.

Furthermore, by serially transmitting adjustment data, etc. at this time, the overall configuration can be simplified, and product data, self-diagnosis data, identification data, etc. can be used for product management, failure diagnosis, etc. In addition, the usability of the editing device 1 can be improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an editing device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a partially detailed configuration thereof.

FIG. 3 is a diagram showing storage positions of card boards.

FIG. 4 is a block diagram showing a card board.

FIG. 5 is a signal waveform diagram showing the data transmission.

FIG. 6 is a block diagram showing the serial interface circuit of the card board.

FIG. 7 is a diagram showing the contents of a memory circuit.

FIG. 8 is a block diagram showing the overall configuration of the editing device.

FIG. 9 is a flowchart showing self-diagnosis processing.

FIG. 10 is a flowchart showing a temperature measurement process on the card substrate side.

FIG. 11 is a flowchart showing the process of measuring temperature on the housing side.

[Explanation of symbols]

1...Editing device, 2A to 2C...Power supply, 4A to 4C...
Fan, 6, 24, 24A-24R...Thermistor, 1
0A to 10R...Card board, 30, 66...Serial interface circuit, 48...Memory circuit, 64...
Central processing unit, 68...serial input/output circuit.

Claims (6)

[Claims] 1. An electronic device having a main wiring board and a plurality of sub wiring boards connected to the main wiring board,
Each of the plurality of sub-wiring boards has a memory circuit that stores data for adjusting each sub-wiring board, and the main wiring board has memory circuits that store data for adjusting the sub-wiring board stored in the memory circuit. An electronic device characterized by adjusting each sub-wiring board based on data. 2. The main wiring board has a control circuit for controlling the sub wiring board, and serially transmits data for adjusting the sub wiring board from each sub wiring board to the control circuit. , serially transmit control data from the control circuit to each sub wiring board based on the serially transmitted data for adjusting the sub wiring board, and adjust the sub wiring board based on the control data. The electronic device according to claim 1, characterized in that: 3. The memory circuit stores unique product data of each sub wiring board in addition to the data for adjusting the sub wiring board, and adjusts the product data to the above data based on predetermined control data. The electronic device according to claim 1, wherein the electronic device outputs to a main wiring board. 4. The memory circuit stores data for self-diagnosis in addition to data for adjusting the secondary wiring board, and the main wiring board has a control circuit for controlling the secondary wiring board. The control circuit adjusts each sub-wiring board based on the data for adjusting the sub-wiring board, and sequentially reads the self-diagnosis data stored in the memory circuit of each sub-wiring board. reading, based on the reading result,
The electronic device according to claim 1, wherein an abnormality in each sub-wiring board is detected. 5. The memory circuit stores identification data for each sub wiring board in addition to data for adjusting the sub wiring board, and the main wiring board controls the sub wiring board. It has a control circuit, and the control circuit adjusts each sub wiring board based on the data for adjusting the sub wiring board, and adjusts the sub wiring board based on the identification data of each sub wiring board. 2. The electronic device according to claim 1, further comprising a step of confirming that the electronic device is stored in the correct position. 6. The control circuit inputs and outputs input/output data to and from a predetermined external device via an input/output circuit, and the memory circuit, in addition to the data for adjusting the sub-wiring board,
Claim 1 characterized in that said input/output data is stored.
, the electronic device according to claim 2, claim 3, claim 4, and claim 5.