Sanyo LCD-26XR7 Service Manual

18
3.2. Raster, but no picture
Check if the unit button
and remote control
operation?
Check if the all
channels have signal?
Replace
main board
Enter factory-menu,
initialization EEPROM,
then turn off the TV,
turn on again, displa
y
p
icture?
Adjust main boar
d
again
Which is no signal
of channels
Replace
main board
Check if 1VPP signal
and noise wave o
f
X405(PIN 8) in the
TV board?
Check if outpu
t
IF signal o
f
TUNER401(pin
11) is normal?
Check TUNER401
and its periphery
Check N404 an
d
its periphery
no
yes
yes
HDMI/VGA/YPRPB
TV
yes
no
no
no
yes
Does display OSD
menu in screen when
p
ress menu button?
yes
no
yes

Sanyo LCD-26XR7 Specifications

General

Brand	Sanyo
Model	LCD-26XR7
Category	LCD TV
Language	English