Haier DX-RCRT20-09 Service Manual page 22

3
Yes
Check to see if the voltage of
pin 11 and pin12 of IC201 is
Yes
Change IC201 and
repair circuit
Normal
4.
Yes
Enter D-MODE with
customer remote controller.
Make RAGC tuned to 25 or
so. Noise on picture just
disappears.
Make R429 open. Multimeter is at range RΧ1K. Red probe
connects to ground. Touch No.5 of IC401 with black probe.
Bright line flashes for a moment
normal
No
Inspect IC201
and peripheral
components of
IC201
Not exist
Check to see if RAGC is
at 00 mode
Inspect SAW101、
IC201and PIF
Horizontal bright line
Check to see if voltage of pin2 at
Yes
Check to see if the deflection
yorks are connected, C404 is
open or weldless. Inspect
peripheral component of IC401
and IC401 itself
No sound and picture
Snowy noise exist
No
part
22
No
IC401 is normal
Inspect +28V
power supply
Exist
Check to see if voltage
output available at tuner
Yes
Inspect the
Antenna
circuit from
or tuner is
CPU to tuner
abnormal
No
No