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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
5. TROUBLE WITH INTERCOM MODE
5-1. The voice from the Base unit cannot be heard on the Handset.
Check whether there is an audio waveform on Pin 4 of IC7.
NG
Check MC251 and IC7.
OK
Check Pin 7 of IC6.
5-2. The voice from the Handset cannot be heard on the Base unit.
Check whether there is an audio waveform on Pin 1 of IC6.
NG
Check IC6.
OK
Check whether there is an audio waveform on Pin 15 of IC7.
NG
Check IC7.
OK
Check WF701 and SP701.
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