Re: AOC Envision LE24H067 Wont turn on at all
ive been looking averywhere on the net for a replacement motherboard on the net and i can seem to find it can anyone give me any advice where i can get it? On the net or near los angeles california USA
kaks
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Last Activity: 11-15-2011, 02:48 PM
Joined: 11-12-2011
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Re: AOC Envision LE24H067 Wont turn on at all
Hello I just got a wonderful idea or last atempt before i trow this TV to the trash jajajaja
I saw this tv selling on ebay
[url]http://www.ebay.com/itm/INSIGNIA-NS-24E730A12-24-LED-TV-BROKEN-AS-IS-PARTS-/260889917864?pt=Televisions&hash=item3cbe4039a8[/url]
do you guys think the LED screen on my AOC envision will fit on this INSIGNIA TV? they are the same size and have the same resolution.Re: AOC Envision LE24H067 Wont turn ...ot a wonderfulLeave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
jajajajaja thats wright well guess im just going to have to give up on this junk i think its going directly to the trashcan jajajajajLeave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
This are the numbers printed on the main video board
715G3759-MOF-000-005K is this the model number?
this is another number thats on a label on the board
(T)TQACB ZKD3502 TOP:A MB:A
S/N:1526730M0843 V2.02Leave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
hello where could be a good place to find Boards.
Also i want to make sure it is the main board?
according to what we have done do you really think its the board?
or could it be the LED laps?
could it still be the power board? I called AOC Envision and they can sale me the board for $102 usd
what do you suggest me to do?
I will post the pics of the main board as asoon as i get home from workLeave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
Hello testing the inductors i get voltage both ways.
the 2 small ones have a low voltage like 2.3 and 3v and 5v and 4 on both sides
the biger inductor on the very top has a kind of high voltahe of aroun 9v one pin and 10v the other pin.
the gray inductor has a voltage of like 1.3 one pin and the other pin has like 2v
is this normal? you stated one side should have 0v on the inductorsLeave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
U708 carries 9.1v
U703 carries 5v
U702 carries 3.3vLeave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
ok the inductor have a voltage on both pins
the diode is fine as you said
the voltage regulators only the leg #3 of each regulator carries voltageLeave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
Ok i tested the diode you circuled blue and i get a reading of 158 one way and 1974 the other way around so acording to my understanding this diode is shorted?Leave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
hello i will do the testing as of to best of my knowledge I really apreciate your help thank you very much.Leave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
Ok so acording to my general understanding I get power all the way to the PWR but when I press the PWR button THe signal to start the tv does not get send. What could be the problem that that signal doesnt get trought?Leave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
Ok i tested the voltage of the PWR pin on the main logic video board and when i press the power switch the voltage goes from 3.3v to 0v just a note thanksLeave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
I tested for continuity and yes the power button should be fine I used the diode tester mode on my multimeter I head sound everytime i pressed the pwr switch . i also tested the othe switches and they are all fine. What should be my next step please Thank youLeave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
OK hear is the pic of the switch board
i did a little test i disconnected the switch board and tried using the remote to turn on the tv. i measured the voltage on the IR pin and the voltage varies everytime i press any key on the controller. the voltage varies even hen i press the the power button. the voltage on IR pin reads 3.3v...Leave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
i wrote it before i saw you response sorry ok i will upload the pics thankyou
Leave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
So why am i not getting any Standby light when i plug the tv to the wall? if i press the volume channel keys there is power. the only thing it does is that it blinks as soon as i plug it in to the wall.Leave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
No the voltage does not change i know there is voltage on the pwr it reads 3.2v
so what should be my first step to test the main video logic board? thank youLeave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
Ok i tested the voltage on the KEY pin as TOM said and YES the voltage varies when i press the volume, channel, menu and source buttons BUT Voltage does not varie when i press the Power key. is this OK?Leave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
Ok here is a pic of of the connector on the main logic video board this is where the power,volume, source select bar is connected and also the standby light and the remote sensor.
I tested the pins with my multimeter and they read like this
pwr= reads 3.3
sensor = its not in use
key = reads 3.3
3.3v = reads 3.3v the other labeled 3.3v its not in use
IR = 3.2
LED_B = reads 0v no volts
LED_R = its not in use
I did a little test i Measured the voltage...Leave a comment:
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Re: AOC Envision LE24H067 Wont turn on at all
Hello thanks for your time. Well i did the test with the main board connected and i still dont get any voltage reading from Pin 1 of CN902.
I also tested the tv connecting a dvd player and i couldnt hear anything.
Does this all mean I have a bad video logic board?
is there a way i can fix it?
What is my next step please?Leave a comment:
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