9-4
BDP-BX2/S360
Video section flowchart
Reproduced video does not appear right
Is the fluorescent tube/LED display correct?
No
To Main flowchart
Yes
Is the drive operating properly?
No
To Drive flowchart
Yes
Check the input of each power supply.
No
Replace the IC link.
Q815 (Emitter): -9V
IC805 pin 5: +6V
When Q815 is defective: Replace PS804
When IC805 is defective: Replace PS803
Yes
Check the output of each power supply.
No
Check the control of each power supply.
No
Check the control lines
Q815 (Collector): -8V
IC805 pin 4: +3.3V
Q813 (Emitter): 3.3V
IC805 pin 1: 5V
When Q813 is defective: Check PCONT2
When IC805 is defective: Check SW5VD
Yes Yes
Replacement device
When Q801 (Collector) is defective:
Replace Q801
When IC805 pin 4 is defective:
Replace IC805
Check -5 V Power supply
No
Replacement device
IC806 OUTPUT: -5V Replace IC806
Yes
Are video signals input to IC808?
No
Check the wiring from IC101.
Pin 8 Y signal
Pin 3 C signal
Pin 10 Y signal
Pin 12 Cb signal
Pin 14 Cr signal
Yes
Are control signals input to IC808?
No
Check the wiring from IC101.
IC808 pin 16 PS1 (XVMUTE +3.3V)
IC808 pin 15 PS2 (XVMUTE +3.3V)
Yes
Is a video signal output from IC808?
No
Replace IC808
Yes
Is a signal output from each Video output
connector?
No
Check output resistors (R8045, R8041,
R8042, and R8043).
Check the pin jack block.
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1
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Q
Q
3
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1
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0
9
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2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
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2
9
8
0
5
1
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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