Model : LE40A456C2D 40 inch LCD
PSU : BN44-00197A
Main Board : BN94-01672D / BN41-00980A
History : The TV came with a blown power board. I replaced the board as the fuse had completey shattered and there was a cheap replacement
on ebay. All the replacement psu voltages seem near to ok (i think ?).
Voltages at psu :
0 reads 0
13 reads 12.89
13 reads 12.89
0 reads 0
5.3 reads 5.02
5.3 reads 5.02
0 reads 0
0 reads 0
13 reads 12.89
0 reads 9
5.3 reads 5.05
power reads 3.63
Problem : At power on the TV blinks red light 3 times, then a delay, then another blink.
Then Im ONLY able to watch Scart TV.
If i change to HDMI with a source the TV briefly shows caption 'HDMI 1'
that caption then dispappears and then a blank screen
with no sound.
Have tried service menu reset 5 or 6 times and made no
difference.
Is there a known eeprom where the pins can be connected
for a reset? I had a look for ic1803 and ic502 but dont seem
to be there.
The pics of av board are repeated , had a bit of trouble
with the light etc, let me know if anymore are needed.
Let me know if anything daft in service menu etc -
PSU : BN44-00197A
Main Board : BN94-01672D / BN41-00980A
History : The TV came with a blown power board. I replaced the board as the fuse had completey shattered and there was a cheap replacement
on ebay. All the replacement psu voltages seem near to ok (i think ?).
Voltages at psu :
0 reads 0
13 reads 12.89
13 reads 12.89
0 reads 0
5.3 reads 5.02
5.3 reads 5.02
0 reads 0
0 reads 0
13 reads 12.89
0 reads 9
5.3 reads 5.05
power reads 3.63
Problem : At power on the TV blinks red light 3 times, then a delay, then another blink.
Then Im ONLY able to watch Scart TV.
If i change to HDMI with a source the TV briefly shows caption 'HDMI 1'
that caption then dispappears and then a blank screen
with no sound.
Have tried service menu reset 5 or 6 times and made no
difference.
Is there a known eeprom where the pins can be connected
for a reset? I had a look for ic1803 and ic502 but dont seem
to be there.
The pics of av board are repeated , had a bit of trouble
with the light etc, let me know if anymore are needed.
Let me know if anything daft in service menu etc -
Attached Files
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