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GRUNDIG Service
3.2 S-Video Trouble Service Flow Chart
Composite Video Trouble
Check "SETUP" Item
OK
Check Y1 Output Signal
OK
Check C44/C47 Signal
OK
Check C46/C49 Signal
OK
Check CN507 Pin2/3 Signal
NG
Check L502/L504 Signal
OK
Replace between
CN501 and CN1 Cable
3.3 SCART Video Trouble Service Flow Chart
Composite SCART Video Trouble
Check "SETUP" Item
OK
Check Y1 Output Signal
OK
Check C53/C56/C59 Signal
OK
Check C55/C58/C61 Signal
OK
Check CN509 Pin6/7/8 Signal
NG
Check L501/L503/L505 Signal
OK
Replace between
CN501 and CN1 Cable
NG
See "User Manual"
NG
Replace Y1 Parts
NG
Replace C44/C47 or U1
NG
Replace C46/L9/R41
or C49/L10/R42
OK
Check External Set
NG
Replace L502/L504
NG
See "User Manual"
NG
Replace Y1 Parts
NG
Replace C53/C56/C59 or U1
Replace C55/L12/R44
NG
or C58/L13/R45
or C61/L14/R46
OK
Check External Set
NG
Replace L501/L503/L505
4. Composite Analogy Audio Trouble Service Flow Chart
Composite Analogy Audio Trouble
Check R22 Signal
OK
Check U501 Pin1~3 Signal
OK
Check U501 Pin7 +5V
OK
Check U501 Pin5/8 Signal
OK
Check U502 Pin2/6 Signal
OK
Check U502 Pin4/8 +/-12V
OK
Check U502 Pin1/7 Signal
OK
Check CN505 Pin2/3 Signal
NG
Check Q501/Q502 Mute Parts
5. Digital Audio Trouble Service Flow Chart
Digital Audio Trouble
Check "SETUP" Item
OK
Check R530 Signal
OK
Check C525 Signal
OK
Check CN507 Pin1 Signal
NG
Replace between
CN501 and CN1 Cable
2 - 21
GDP 2200
NG
Replace R22/C70 or U1
NG
Replace R51 or U1
NG
Check Power Supply
NG
Replace U501
NG
Check U502 between
Pin2/6 and Pin5/8 Parts
NG
Check Power Supply
NG
Replace U502
OK
Check External Set
NG
See "User Manual"
NG
Replace U1
NG
Replace Q505 Parts
OK
Check External Set
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