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8-4 Trouble Shooting of Baseset RF Part
8-4-1 Tx Freq Failure
BRF1
TX FREQ FAILURE
TEST MODE
FREQ
EPROM IS LESS THAN
+/-50KHz
REGULATED
COLLECTOR VOLTAGE
OF Q500 IS STABLE
VCC BIAS IS OK
CHECK
REF.OSC
Trouble Shooting
NO
YES
YES
YES
OK
YES
NO
NO
ADJUST 2.0+/-0.2V AT CH5
NO
CHECK 10.368MHz REFERENCE
OSC. FROM LOGIC FART
OK
CHECK C543
GO TO BRF3 AND
8-24
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Table of Contents
Troubleshooting
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