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I really like this manual and it's reliable.I found and bought easly.thank you.
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Thank you very much. the Instruction corresponds to my expectations. Sent it in time. I don't regret that paid money.
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Good quality. Quick service. I recommend to everyone.
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Very good quality scan of the document. I am very pleased with what I got.
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PDF Contains
Technical Data, Mechanical data, Detailed Circuit diagram with components value, PCB layout. Actual PCBs Print. Component List, Spare parts code list and Input output detail. It cover LBB1211, LBB1212, LBB1213, LBB1216, LBB1217.
It is the actual Service Manual for SQ10
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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