Motorola D10 Service Manual page 113

BenQ
Transmitter Troubleshooting and Repair Chart
Tx Symptom
1.Transmit a) Microphone
audio is connections to
weak,(usually Main Board
indicated by defective.
called parties
b) Microphone
complaining of
defective.
difficulty in
hearing voice
from portable
phone).
c) Main Board
assembly
defective.
Probable Cause Verification and Remedy
1. Check connections and if OK,
proceed to b.
1. Substitute a known good
microphone.
2. Place a call and Verify
improvement in portable transmit
signal as heard by called party. If
good, re-assemble portable with
new microphone
3. If microphone is not at fault,
re-install original microphone
and proceed to c.
1. Replace Main Board Assembly.
2. If Main Board Assembly is at
fault, examine for improper
solder and connections.
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