Functional Specification Of The Service Mode - Pioneer CB-A802 Service Manual

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7.1.4 FUNCTIONAL SPECIFICATION OF THE SERVICE MODE

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• LCD indication of EDC / ID error (short cut function)
Indicate it in LCD with the "ESC"+"CX" keys (LD remote control unit).
A
Indication is released with the "ESC" key during display.
LCD indication contents
0 0 / 0 0 / 0 1 ∗
Indicate number of the location that caused EDC and ID errors
Retry number of times at having caused ID error (error is indicated only in the occurring moment)
Retry number of times at having caused EDC error (error is indicated only in the occurring moment)
∗ Mark: When even once causes AV1 error, lights.
B
• Screen display of the service mode
Indicate to the screen with the "ESC"+"CHP/TIM" keys.
Release the indication with the "ESC" key.
Indication contents
1 ID Address
2 DVD in playback: Error rate regular indication and exponent
indication
CD/VCD in playback indicates the number of correct frame of
C1 error /5 seconds.
3 Self diagnosis indication
Indicate the self diagnosis result.
C
Self Check
Self Check OK
Self Check Error
Indicate the mechanism error history and self diagnosis result
by pressing the "CHP / TIM" key once again.
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Afterwards press the "CHP / TIM" key with toggle and change
the display.
Indication of the mechanism error history and self diagnosis
result refer to "7.1.3 Self diagnosis function".
4 Error information indication of the AV decoder
(a: The left half of 4-10 lines)
When a retry occurred in reading from the disc, a history
indicates the occurrence location and the occurrence reason.
History is indicated to past seven times.
D
Eight columns of the beginning show the physical address
which occurred of retry.
As for four columns of next, bitmap indicates EDC status. LSB
shows the first sector during a block and MSB shows a last
sector.
Following field indicates the retry number of times.
One digit in front of " / " shows number of times of the retry by
EDC Error which occurred in the same block in succession.
One digit after " / " shows number of times of the retry by ID
Check Error which occurred in the same block in succession.
" * " of last one digit shows the EDC Check NG Count Over.
" # " shows the ID Check NG Count Over.
When " * " and " # " are not indicated, show that data were
rightly readable by retry process.
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(b: The right half of 4-10 lines)
Indicate the error information that detected with the Audio/Video
Decoder. When error occurred, a history indicates the
occurrence time and the occurrence reason. History is indicated
to past seven times.
Field in front of ":" indicates the error information of Audio/Video
Decoder.
• Specification for the Audio/Video Decoder
bit 7: VLD Fatal Error detection
bit 6: VLD Not Fatal Error detection
bit 5: Number of Macro Block mismatch
bit 4: Decode error
bit 3: VLD Sequence Layer Fatal Error detection
bit 2: VLD Picture Layer Fatal Error detection
bit 1: VLD Slice Layer Fatal Error detection
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bit 0: Start-up Sequence Time-out Error detection
Following field in " : " indicates a value of STC (System Time
Clock) which detected the above Audio/Video Decoder error.
∗ When often perform the switch of debug screen, an error history
will be increased.
As for this, CPU power is used for update of OSD drawing,
symptoms occur so that control of VBR Buffer is not in time.
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