Pioneer PRA-BD11, Service Manual

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PRA-BD11
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5 6
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B
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7.1.8 [PRA-BD12]: OPERATION CHECK OF THE ASSY
CN8609
AES/EBU_OUT
CN8301
AES/EBU_IN
CN8608
SDI_OUT
CN8610
CN8601
TP8611
CN8602
CN8203
CN8202
CN8201
CN8101
SDI_IN
SIDE B
LED3
LED2
LED1
To perform an operational check during Normal Operation mode, mount the PRA-BD12 on the PRV-LX1 main unit.
During Test mode, however, simplified operational checks of the major ICs and of the SDI and AES/EBU output connectors
can be performed merely by sup5 V power to either CN8601 or TP8611. You do not need to connect a FFC cable.
You can also perform simplified operational checks of the SDI and AES/EBU output connectors by using the PRA-BD11.
1. Configuration for operational checks
The following is an example of operating the PRA-BD12 in Test mode and performing operational checks by connecting the
PRA-BD11.
DWV1201 (PRA-BD12)
• Test mode
DWV1200 (PRA-BD11)
• Normal Operation mode
BNC cable of
3C-2V or 5C-2V type
BNC cable of
3C-2V or 5C-2V type
+5V power supply through the
soldered part of the DKP3674
or equivalent or of TP8611 on
Side B
+5V power supply through the
soldered part of the DKP3673
or equivalent or of TP8286
The following items can confirm.
Power supply voltage to supply
Unit Power Supply Soldered Part to be used Connector
PRA-BD12 +5.00V
±
5% TP8611 CN8601
PRA-BD11 +5.00V
±
5% TP8286 CN8201
Setting items
Items to be confirmed
Unit Setting Item Soldered Part to be used Setting
Setting to Test mode TP8660 Low
PRA-BD12
PAL/NTSC output
TP8661 Open
Result
Test mode
NTSC output
PRA-BD11 None
Items to be
Confirmed
Soldered Part
to be used
Visual Inspection of the LEDs
What is to be confirmed
+5V power TP8613 +5V(D8601) Check the voltage. Check that the corresponding LED is lit.
+3.3V power TP8614 +3.3V(D8602) Check the voltage. Check that the corresponding LED is lit.
+2.5V power TP8615 +2.5V(D8603) Check the voltage. Check that the corresponding LED is lit.
Internal
operation
−
LED1 (D8612), LED2 (D8617),
LED3 (D8613), LED4 (D8614),
LED5 (D8615), LED6 (D8616)
Check that the corresponding LED is lit.
RS-232C
operation
TP8662, TP8670
−
Using +3.3 V power from TP8670, a general-purpose logic IC will divide the
signal (TxD) output from TP8662 into 256. Check the status of the output signal
by flashing of the LEDs.
SDI output
−
LED1(DWV1200, D8205),
LED2(DWV1200, D8206)
Check that the corresponding LED is lit.
AES/EBU output
−
LED3(DWV1200, D8207) Check that the corresponding LED is lit.