TC-700P Service Manual
73
VCO
Power supply is
normal?
VCO
Check
Replace Q104
Oscillator
CV voltage in Rx is
normal?
Yes
Check
if Q102 works
well.
NO
NO
Check if
Q105 outputs
normally?
`
Yes
Replace
Q102
Check Q105
NO
Yes
Check if
feedback is
normal.
Check Q107
NO
Check
if 16.8MHz
Oscillates?
Check power
supply circuit.
Check CPU data circuit
Yes
Yes
Yes
NO
NO
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