Pra-Bd12]: Operation Check Of The Assy - Pioneer PRA-BD11 Service Manual

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7.1.8 [PRA-BD12]: OPERATION CHECK OF THE ASSY

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 supplying +5 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.
+5V power supply through the
soldered part of the DKP3674
or equivalent or of TP8611 on
Side B
SIDE B
TP8611
+5V power supply through the
soldered part of the DKP3673
or equivalent or of TP8286
Power supply voltage to supply
Unit Power Supply
+5.00V ± 5%
PRA-BD12
+5.00V ± 5%
PRA-BD11
Setting items
Unit Setting Item
Setting to Test mode
PRA-BD12
PAL/NTSC output
PRA-BD11
The following items can confirm.
Items to be confirmed
Items to be
Soldered Part
Confirmed
to be used
+5V power TP8613
+3.3V power TP8614
+2.5V power TP8615
Internal
−
operation
RS-232C
TP8662, TP8670
operation
−
SDI output
−
AES/EBU output
5
6
DWV1201 (PRA-BD12)
• Test mode
CN8610
CN8601
CN8602
DWV1200 (PRA-BD11)
• Normal Operation mode
CN8203
CN8202
CN8201
Soldered Part to be used Connector
TP8611
TP8286
Soldered Part to be used
TP8660
TP8661
None
Visual Inspection of the LEDs
+5V(D8601)
+3.3V(D8602)
+2.5V(D8603)
LED1 (D8612), LED2 (D8617),
LED3 (D8613), LED4 (D8614),
LED5 (D8615), LED6 (D8616)
−
LED1(DWV1200, D8205),
LED2(DWV1200, D8206)
LED3(DWV1200, D8207)
PRA-BD11
6
7
CN8609
AES/EBU_OUT
CN8608
SDI_OUT
CN8301
AES/EBU_IN
LED3
LED2
LED1
CN8101
SDI_IN
CN8601
CN8201
Setting Result
Low Test mode
Open NTSC output
What is to be confirmed
Check the voltage. Check that the corresponding LED is lit.
Check the voltage. Check that the corresponding LED is lit.
Check the voltage. Check that the corresponding LED is lit.
Check that the corresponding LED is lit.
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.
Check that the corresponding LED is lit.
Check that the corresponding LED is lit.
7
8
A
B
BNC cable of
3C-2V or 5C-2V type
BNC cable of
3C-2V or 5C-2V type
C
D
E
F
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