DAEWOO AKF0315
Service Manual

3. EMERGENCY TROUBLE SHOOT
3-1. General Function

Yes

No sound from speakers

Output connector is missing
No

Yes

Put exactly output connector in.

A

Output connector is inferior goods
No

Yes

Change output connector to superior goods

Power IC, Output Socket is inferior goods
Yes

Yes

Change Power IC, Output Socket to superior goods Re-adjust Balance Ref. Balance = Center of front, rear Front:00 / Rear:00

Different each channel have output level (Front, Rear, Left, Right)

Balance of front and rear is in one side
No

Yes

Balance of Left, Right is in one side.

Yes

Re-adjust Balance of Left, Right

Ref. Balance = Center
Left:00 / Right:00

Treble or Bass is low unusually

Yes

Balance of Treble or Bass is in one side.

Yes

Re-adjust Balance of Treble or Bass

Ref. Balance = Center
Treble:00 / Bass:00

Yes

Power is not supplied
No

Yes

Ref. Point A

L.C.D or L.E.D is not turned off.

Output voltage of power IC is little.
No

Yes

Change Regulator IC and check output voltage.

Ref. Regulator IC output
Voltage = V

LCD or LED is inferior goods.

Yes

Change LCD or LED to superior goods.

Ref. Electrical Parts List
L.C.D., L.E.D.

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