User's Manual

TM-800 UHF SERVICE MANUAL
124
Normal power
supply?
VCO
Check
Replace Q116
No
Rx oscillates ? And
CV voltage is
normal?
Yes
Q706 works
normal?
No
`
Check Q703
outputs normally?
Check Q703
Normal
feedback?
Check Q124
Check power
supply circuit.
Check CPU data
circuit.
16.8MHz
oscillates?
Q705 works
normal?
Replace Q706
Replace
Q705
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No