Daewoo AGC-4208 Series, Service Manual

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5.TROUBLE SHOOTING GUIDE
11
AGC-4208RD & AGC-4206H
No sound from speaker
MAIN CONN check
Power ic output check
Power ic input
B up voltage check
B up voltage check
Put exactly output Connector in
SPEAKER check
Electric volume Output check
Power ic check
POWER ON
POWER ON KNOB
Touch check
Check the front Vdd 5V
Check the micom Vdd
and OSC
Change the tact switch
Check the Vdd
Check the micom Vdd 5V
LCD
LCD CONN. Touch check
Check the front Vdd 5v
Check LCD data
Change the LCD connector
Front Vdd 5V Regulator check
Check LCD driver IC Vdd
Change the LCD
CDP
Check the deck
Connector touch
Deck voltage check
Change the deck
Change the deck connector
Check the deck Voltage
regulator
Check the deck Communication
1. General Funtion
2. Deck Funtion
N.G
O K
O K
O K
O K
N.G
N.G
O K
O K
N.G
N.G
N.G
N.G
N.G
N.G
O K
O K
O K
O K
O K
N.G
N.G
N.G