GRUNDIG Service
GDP 2200
2 - 22
6. Front Control Trouble Service Flow Chart
Replace Connection
Check between JP1 and J1
Connection
NG
Front Control Trouble
Check Main Board
Check U2 Pin5/6/8/9 Signal
NG
Check Power Supply
Check U2 Pin14/27/38 Voltage
OK
NG
OK
Replace Connection
Check Between JP2 and CN3
Connection
NG
OK
Replace U2
Check U2 SEG/GRID Signal
NG
OK
Replace U1
OK
Check Power Supply
Check U1 F11/F22 Voltage
NG
OK
7. Remote Control Trouble Service Flow Chart
Replace Battery
Check Remote Control
NG
Remote Control Trouble
Check U3 Pin2 Voltage
OK
Check Power Supply
NG
Replace U3
Check U3 Pin3 Output Signal
NG
OK
Check Main Board / U1
OK
Replace L3
Check U1 Pin83 Input Signal
NG
OK
Replace Remote Control
NG