User's Manual

TC-700 Disassembly and Assembly for Repair
27
No output
power
Power supply
works well?
Check power
supply circuit
Check Q502
Check drive
stage
Check transistor offset
voltage and low pass
network
Repair the
transmissio
n network
Check the
suited
network
VCO
Check flow
chart
Exchange
Q102
Exchange
Q101
Finished
Finished
Finished
Control voltage is
normal?
The current is
normal?
Driver stage is
normal?
The power is
normal?
If the power
is normal.
If the power
is normal.
NO
Yes
NO
Low
High
Yes
NO
NO
Yes
Yes
Yes
Yes
NO
NO