Colour Television
Is there any change on
the voltage level at
P64 of IC201?
No
Check the remote control
receiver and transmitter.
Yes
Is the VDD(+5V) at
P9 and P55 of IC201
ok?
Yes
Is there the 8MHz/5Vp-p
sine wave oscillations at P6
of IC201?
Yes
No
Is the voltage at P5 of
IC201 ok?
Have P5 of IC201 shorted to
GND in an instant. Can the
IC201 work?
Yes
Check/Repair the reset
circuit.
40
Chassis: M123A
No
Check Q002 and
peripheral circuit
Are C021, C022
No
and X001 ok?
Replace the disabled
components
Yes
No
Check/Replace
IC201
Yes
No