Pioneer PRA-BD11, Service Manual

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PRA-BD11
57
5 6 7 8
5 6
7
8
C
D
F
A
B
E
Description of Indications Check / Measures
Place value of hundreds:
The indication for the register and the "LOCK" status of the external
signal of GS9023 are displayed.
Allocation of bits:
2nd bit : Register "revision"
This digit is fixed at "1" for GS9023. It is for judging a case
when access to the register has not been performed.
1st bit : Register "LOCK"
1: The audio data are overlaid on the video data.
0: The audio data have not been overlaid on the video data.
0 bit : External signal "LOCK"
1: The audio data are overlaid on the video data.
0: The audio data have not been overlaid on the video data.
7: No problem
6: Problem with the external signal "LOCK"
5: Problem with the register "LOCK"
4: Problem with the register "LOCK" and external signal "LOCK"
3: Problem with the register "revision"
2: Problem with the register "revision" and external signal "LOCK"
1: Problem with the register "revision" and register "LOCK"
0: Problem with the register "revision", register "LOCK" and
external signal "LOCK"
In a case when an indication other than 7 is displayed, the following
causes are possible:
• Defective soldering at Pins 44-112 and 123-136 of CN8611
• Defective soldering at IC8613
Place value of tens:
The indication for the registers for video and audio data of GS9023
Allocation of bits:
2nd bit : Register "with video input"
This digit is fixed at "1" for GS9023. It is for judging a case
when access to the register has not been performed.
1st bit : Register "with audio channel 1 and 2 inputs"
1: The audio data are overlaid on the video data.
0: The audio data have not been overlaid on the video data.
0 bit : Register "with audio channel 3 and 4 inputs"
1: The audio data are overlaid on the video data.
0: The audio data have not been overlaid on the video data.
7: No problem
6: Problem with audio channel 3 and 4 signals
5: Problem with audio channel 1 and 2 signals
4: Problem with audio channel 1, 2, 3, and 4 signals
3: Problem with the video signal
2: Problem with the video and audio channel 3 and 4 signals
1: Problem with the video and audio channel 1 and 2 signals
0: Problem with video and audio channel 1, 2, 3, and 4 signals
In a case when an indication other than 7 is displayed, the following
causes are possible:
• Defective soldering at Pins 44-48 and 123-136 of IC8611
• Defective soldering at Pins 6-36 and 99 of IC8613
Place value of ones:
The indication for the register for the internal buffer of GS9023
Allocation of bits:
2nd bit : Register "buffer error"
0: No error (The audio data are overlaid on the video data.)
1: Error (The audio data have not been overlaid on the video
data.)
1st bit : Register "audio control packet error"
0: No error (The audio data are overlaid on the video data.)
1: Error (The audio data have not been overlaid on the video
data.)
0 bit : Register "audio data packet error"
0: No error (The audio data are overlaid on the video data.)
1: Error (The audio data have not been overlaid on the video
data.)
0: No problem
Others: With a problem (Various problems may be suspected.
Basically the problem depends on the content of the place
value of tens.)
In a case when an indication other than 0 is displayed, the following
causes are possible:
• Defective soldering at Pins 44-48 and 123-136 of IC8611
• Defective soldering at Pins 6-36 and 99 of IC8613
• GS9023: Indications of the status of IC8613 (GS9023A)
If there is no problem, 1 is displayed in the place value of tens.