FUNAI MAGNANOX BZV420MW8 Service Manual page 31

FLOW CHART NO.4
The disc tray cannot be opened and closed.
[No Disc] indicated.
Both functions of picture and sound do not operate normally.
Replace DVD Mechanism & DVD Main CBA
Assembly.
FLOW CHART NO.5
VIDEO E-E does not appear normally.
Are the video signals inputted to each pin of
IC2805?
IC2805 8PIN VIDEO-IN 1 (REAR)
IC2805 13PIN Y-IN 1 (REAR)
IC2805 2PIN C-IN 1 (REAR)
IC2805 10PIN VIDEO-IN 2 (FRONT)
IC2805 15PIN Y-IN 2 (FRONT)
IC2805 4PIN C-IN 2 (FRONT)
Are the video signals outputted to each pin of
IC2805?
IC2805 19PIN VIDEO-Y
IC2805 21PIN VIDEO-C
Are the video signals outputted to each pin of
CN2201?
CN2201 20PIN VIDEO-Y/CVBS
CN2201 22PIN VIDEO-C
Are the video signals outputted to each pin of
CN2201?
CN2201 7PIN VIDEO-Y(I/P)
CN2201 5PIN VIDEO-Pr/Cr
CN2201 3PIN VIDEO-Pb/Cb
CN2201 1PIN VIDEO-Y(I)
CN2201 9PIN VIDEO-C
Continued to A on the next page.
No
Yes
No
Yes
No
Yes
No
Yes
Check the line between video input terminal and
each pin of IC2805 ,and service it if defective.
→ JK2804
IC2805 8PIN
→ JK2401
IC2805 13PIN
→ JK2401
IC2805 2PIN
→ JK2803
IC2805 10PIN
→ JK2806
IC2805 15PIN
→ JK2806
IC2805 4PIN
Is 5V voltage supplied to the pin(1) of IC2805?
Yes
Replace IC2805.
Check the line between each pin of IC2805 and
each pin of CN2201 and service it if defective.
→ CN2201
IC2805 19PIN
→ CN2201
21PIN
IC2805
Replace DVD Mechanism & DVD Main CBA
Assembly.
1-11-5
VIDEO-IN 1 (REAR)
Y-IN 1 (REAR)
C-IN 1 (REAR)
VIDEO-IN 2 (FRONT)
Y-IN 2 (FRONT)
C-IN 2 (FRONT)
No
Check P-ON+5V line and
service it if defective.
20PIN VIDEO-Y/CVBS
22PIN VIDEO-C
E9E2ZLE