SERVICE MANUAL FOR M35&36; CHASSIS
SERVICE MANUAL FOR M35&36; CHASSIS
SERVICE MANUAL FOR M35&36; CHASSIS
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
TCL<br />
Chassis M35&<strong>36</strong> Service Manual<br />
Check the voltage of<br />
of<br />
Pin54 of of IC201, is is it it more<br />
than 3.3V?<br />
YES<br />
Check Q206 and its its per-<br />
Ipheral components.<br />
NO<br />
NO<br />
The channel can’t be<br />
stored<br />
YES<br />
Check Q103, Q104 and<br />
Their peripheral components<br />
NO<br />
Check IC202 and IC201<br />
Fig.6 The channel can’t be stored<br />
Tuning control<br />
don’t work<br />
Is Is the voltage of<br />
of<br />
BM terminal of of the<br />
tuner 5V?<br />
YES<br />
Can the VT voltage<br />
vary form 0 to to 30V<br />
While tuning?<br />
YES<br />
Check the tuner,<br />
Q101, IC101 and<br />
IF IF section circuit.<br />
NO<br />
NO<br />
Check the 5V<br />
power supply<br />
circuit for the tuner<br />
Check the circuit<br />
From pin6 of of IC201<br />
to to VT terminal of<br />
of<br />
the tuner.<br />
Fig.7 Tuning control don’t work<br />
55 03.Mar.2003