Audio Section; No Audio - Radio Shack PRO-106 Service Manual
Digital trunking
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Also See for PRO-106:
- Firmware upgrade manual (3 pages) ,
- Quick start manual (1 page) ,
- User manual (71 pages)
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Audio Section
No audio
there any audio at pin 6
of IC12?
5 V exist at IC12
pin 7?
Defective IC12 and/or
associated circuit.
Is
NO
YES
Does
NO
YES
Is
there any audio at
IC8 Pin 1?
YES
Defective IC10, Q32 and/or
associated circuit.
Defective IC11 and/or R167.
11
NO
Defective IC8, IC10 and/or
associated circuits.
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