Electrical diagrams and Print-layouts
39
DVD 950
6.
SOUND OK
Diagnostic Software
NO SOUND ON
TV- & AUX-SCART
AUDIO TP14?
•
Check supply voltage of IC7917(D6401)
•
Check Scart switching IC7917
•
Check Elco's 2372, 2373
•
Check OPAMP 7403
NO
YES
AUDIO
TP 15?
NO
YES
•
To put set in “Player script”, press keys
STOP+OPEN/CLOSE simultaneously and connect to
mains. Proceed until display shows “
”.
DIGITAL OUT OK
Diagnostic Software
NO DIGITAL OUTPUT
DIG_OUT TP11?
•
Check digital trafo L5400
•
Check flex connection to mono board
•
Check mono board
NO
YES
DIGITAL OUT
TP18?
NO
YES
•
To put set in “Player script”, press keys
STOP+OPEN/CLOSE simultaneously and connect to
mains. Proceed until display shows “
”.
OPTICAL OUT?
•
Check +5V supply(R3803)
•
Check optical transmitter 6400
APP SND-2
APP SND-2
APP SND-2
APP SND-2
CL 96532065_060.eps
130799
VIDEO PART OK
Diagnostic Software
NO PICTURE
CVBS & Y/C OUT
POWER SUPPLY?
•
Check VIDEO buffers
•
See test instructions
•
Check VIDEO buffers
•
See test instructions
•
Check flex connection to mono board
•
Check mono board
•
Check supply vo8Vstby, – 8Vstby, +12Vstby, +6V,
+5V
•
Check voltage regulator 7304
•
Check safety resistors 3615, 3620, 3802, 3803
•
Check flex connection to mono board.
NO
YES
VIDEO
TP1-6?
NO
NO
YES
YES
NO
YES
VIDEO
Y/C OUT
TP20-21?
VIDEO
CVBS CINCH
TP19?
•
To put set in “Player script”, press keys
STOP+OPEN/CLOSE simultaneously and connect to
mains. Proceed until display shows “
”.
VIDEO PART
APP PIC-1
APP PIC-1
CL 96532065_061.eps
130799