HYT TC-700 Service Manual page 59

Tx Circuit
Yes
Check transistor offset
voltage and low pass
network
Repair the
transmissio
n network
The power is
normal?
Yes
Finished
Yes
No
The current is
normal?
No
Yes
Finished
Yes
Finished
No output
power
Power supply
works well?
Control voltage is Control voltage is
normal? normal?
High
Check drive
stage
Driver stage is
normal?
No
Check the
suited
network
If the power
is normal.
No
Replace
Q102
If the power
is normal.
No
Replace
Q101
57
TC-700 Service Manual
Check power
No
supply circuit
Low
Check Q502
VCO
Yes
Check flow
chart