Emergency Trouble Shoot - Daewoo ACP-2208RD Service Manual

3. EMERGENCY TROUBLE SHOOT

3-1. General Function
No sound from
speakers
Different each
channel have
output level
(Front, Rear,
Left, Right)
Treble or Bass
is low
unusually
L.C.D or Lamp
is not turned
off.
Yes
Output connector
is missing
A
No
Output connector
is inferior goods
No
Power IC, Output
Socket is inferior
goods
Balance of front
Yes
and rear is in one
side
No
Balance of Left,
Right is in one
side.
Balance of Treble
Yes
or Bass is in one
side.
Yes
Power is not
supplied
No
Output voltage of
power IC is little.
No
LCD or Lamp is
inferior goods.
Yes Put exactly output
connector in.
Change output
Yes
connector to
superior goods
Change Power IC,
Yes
Output Socket to
superior goods
Yes Re-adjust Balance
of front, rear
Re-adjust Balance
Yes
of Left, Right
Re-adjust Balance
Yes
of Treble or Bass
Yes
A
Return to
Change Regulator
Yes
IC and check
output voltage.
Change LCD or
Yes
Lamp to superior
goods.
3
Ref. Balance = Center
Front / Rear
Balance = Center
Ref.
Left / Right
Ref. Balance = Center
Treble / Bass
Ref. Regulator IC output
Voltage = V
Ref. Electrical Parts List
L.C.D., Lamp