User's Manual

TC-700 Disassembly and Assembly for Repair
28
Check if the power
supply of AF IC is
normal?
No recieve
Check if the output
of base band IC is
normal.
Check if control voltage
AFCO is normal.
Check if the input of
base band IC is normal.
Exchange
AK2346
Check the output of
IC204 is normal.
Check the second local
oscillator is normal.
Check the voltage of
CD201 is normal.
Check if PIN 16
outputs in IF input
Check if T1 outputs in
RF input
Exchange
CD201
Check Q308
Check IC404
Exchange IC
Exchange 717
Check the
status of IC204
Check VCO
Check volume knob
& AFMUTE
Yes
NO
NO Yes
NO
NO
NO
NO
NO
NO
Yes
Yes
Yes
NO
Yes
Yes
Yes
Check Q207
passage
Yes