19
6.Voice can’t be transmitted to other party.
NG
OK
OK
OK
NG
OK
Check the handset MIC
sensitivity.
At the MIC of the handset,
does the bias voltage exist.
Check the handset TX AF
circuit (around PIN1-11 of
HU7 and HU5C).
Check the base RX TEL-
Line out.
Check the base RX
sensitivity.
The handset MIC is
defective.
Check the base RX RF
circuit and mixer circuit
(around BQ7).
Summary of Contents for FT-3808BK
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