Haier 5115DVD Service Manual page 24

3
Yes
Check to see if the voltage of
pin 15 and pin16 of N201 is
normal
Yes
Change N201 and
repair circuit
Normal
4.
Not exist
Check to see if PICTURE
MODE is at LISTEN
Yes
Enter D-MODE or enter
S-MODE with customer
remote controller. Make
RAGC tuned to 25 or so.
Noise on picture just
disappears.
Horizontal bright line
Make L809 open. Multimeter is at range RΧ1K. Red
probe connects to ground. Touch No.5 of N401 with
black probe. Bright line flashes for a moment
No
Inspect N201
yorks are connected, C433 is
and peripheral
components of
peripheral component of N401
N201
No sound and picture
Snowy noise exist
mode
No
Inspect TU101、
SF101、N201.
Check to see if voltage of pin6 at
N401 is normal
Yes
Check to see if the deflection
open or weldless. Inspect
and N401 itself
Check to see if voltage
output available at tuner
Yes
Antenna
or tuner is
abnormal
24
No
No
Inspect +27V
power supply
Exist
No
Inspect the
circuit from
CPU to tuner