Haier 48D3500 Service Manual
Download Service manual of Haier 40D3500M Led television, LED TV for Free or View it Online on All-Guides.com.
Brand: Haier
Category: Led television , LED TV
Type: Service manual
Model: Haier 40D3500M , Haier 48D3500
Pages: 52
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Mainboardnot work
1.check if the power supply have
12V and 5V output.
2.Verify if the DC/DC convertors
have the right output
(5V,3.3V,2.5V,1.8V,1.32V).
3.Verify if the Mainchip(MSD3391DS),
DDR2, AudioAMP…solder well;
4.Verify if the FLASH(U17) has the
right software and work well;
5.Verify if the Y1(Crysta
l) has the
right frequency
Panel not work
1. check if the voltage input and
output of blacklight power is working
normally.
2.Verify if the Mainboard output the
right On/Off signal to power board.
3.Verify if the Mainboard output the
LVDS singalto panel T-con board.
4.Verify if the software is the right
version of this model.
5.Change the LVDS wire to check
if it’s broken.
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3. Other problem
Power board not work
1.Verify if the power cord connect well?
2.check if the power supply if working
normally ; check if the power supply of
+5Vstandby is working normally;
3. check if the POWER ON/OFF
voltage is high pressure;
4.check if the power supply have
+12V/+5V output;
5.Check if Main board / LVDS wire /
Panel are in good condition ?