Re: Acer AT1921 almost dead
The partnumber is the same for all of the regulators and it is "1084 PE 488IA" or maybe it's "4881A" ?
And the voltages on the pins are as follow.
A
1 2,18
2 3,44
3 5,05
B
1 0,71
2 1,97
3 3,43
C
1 2,17
2 3,44
3 5,08
D
1 0,68
2 1,95
3 3,44
E
1 2,17
2 3,44
3 5,08
F
1 0,71
2 1,98
3 3,44
G
1 2,18
...
lidner
New Member
Last Activity: 01-22-2011, 08:39 AM
Joined: 09-30-2010
Location: Sweden
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Last edited by lidner; 10-06-2010, 01:09 PM. -
Re: Acer AT1921 almost dead
I have tried to connect a computer as source and used a flashlight to look if there was any "picture" shown and the backlight was broken but it seems to not start. I have also tried to connect a sound-cable but there is no sound comming from the speakers either, while the sources were connected I pushed the "Input" button so it should gon throug all inputs.
So I think that the backlight and the mainboard doesnt start as it should.Leave a comment:
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Re: Acer AT1921 almost dead
Ok. Now I have measure the 3 Fuses (F1, F51, F52) on the power board and they seems to be ok.
I appreciate you help!
Do you have any other tip to look at?Leave a comment:
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Re: Acer AT1921 almost dead
Sorry for not following the standard procedure.
I now have taken some photos of the boards. I hope you can see th PCB
printing (dont really know what it is).
Yes I do have a multimeter and can measure voltage....Leave a comment:
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Acer AT1921 almost dead
Hi! I need some help with a Acer AT1921 LCD TV.
When I plug it in the LED lights orange for 1 second the it turns green and nothing happends. I have opened it up and looked for bulged caps but didnt find any. The backlight doesnt start either. Need any tip I can get.
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