32
FIXING ERRORS
(2) VIDEO ERROR
LED Booting OK
STi5518 CVBS out check
Pin34
Video buffer, Low Pass
Filter Check
Confirm and execute the
fixing process
Confirm the connection status of tracking port and execute
the fixing process
Check the power status of
Sit5518 Video
(Pin 23, Pin30)
Check Related Circuits and execute the
fixing process
Replace STi5518
I/V Ref. Check(STi5518-Pin28,
29, Pin35, 36)
Verify the resistance value and perform
necessary operation
Confirm Video Buffer and perform
necessary operation.
NO
YES
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
Bad quality of RGB(TV Start RGB mode)
STi5518 RGB Output Pin Check.
(Pin 25,26,27)
YES
YES
Replace STi5518
Summary of Contents for DSD-9251MAV
Page 8: ...7 CIRCUIT OPERATION MANUAL 1 Block Diagram DSD 9251EAV Block Diagram ...
Page 17: ...16 CIRCUIT OPERATION MANUAL EMI Interface Timing ...
Page 41: ...40 SCHEMATIC DIAGRAM ...
Page 42: ...41 SCHEMATIC DIAGRAM ...
Page 43: ...42 SCHEMATIC DIAGRAM ...
Page 44: ...43 SCHEMATIC DIAGRAM ...
Page 45: ...44 SCHEMATIC DIAGRAM ...
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Page 48: ...47 SCHEMATIC DIAGRAM ...
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Page 50: ...49 SCHEMATIC DIAGRAM ...
Page 51: ...50 SCHEMATIC DIAGRAM ...
Page 52: ...51 SCHEMATIC DIAGRAM ...
Page 53: ...52 SCHEMATIC DIAGRAM ...
Page 54: ...53 PARTS PLACEMENT ARRANGEMENT ...
Page 55: ...54 PARTS PLACEMENT ARRANGEMENT ...
Page 56: ...55 PARTS PLACEMENT ARRANGEMENT 9252 FRONT PCB ...
Page 57: ...56 PARTS PLACEMENT ARRANGEMENT 9251 FRONT PCB ...
Page 58: ...57 PARTS PLACEMENT ARRANGEMENT ...
Page 59: ...686 AHYEON DONG MAPO GU SEOUL KOREA C P O BOX 8003 SEOUL KOREA DAEWOO ELECTRONICS Corp ...
