Re: Vizio 60" E601I-A3 no display have sound
Could this be the transistor?...
shameem
New Member
Last Activity: 02-09-2015, 10:29 AM
Joined: 05-17-2013
Location: Phoenix, AZ
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Re: Vizio 60" E601I-A3 no display have sound
I thought so too - i removed the transistor from the board and same result. The center tab and another pin is shorted. Do you know an equivalent transistor i can substitute on the board? Thanks
I think 1.2v is the core voltage for the T Con LVDS chip (Novatek)
I have attached an image of the transistor - that is as close i could go without macro lens.......Last edited by shameem; 06-18-2013, 04:40 PM.Leave a comment:
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Re: Vizio 60" E601I-A3 no display have sound
Based on further exploration and brief comparison with a working board i have narrowed it down to the component outlined in the picture. The points marked in blue have continuity on the bad board and don't have continuity on the good board. The markings for this transistor -
COXA (16 printed sideways) on the bad board
CO5A (16 printed sideways) on the good board
Could anyone please point me to a datasheet for this component? Thanks...Leave a comment:
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Re: Vizio 60" E601I-A3 no display have sound
I dont get any voltage at all - maybe 0.1v. The AO4854 is wired very similarly to this schematic - [url]https://cdn.badcaps-static.com/pdfs/eab4319717578a0f17c68e436c6584b8.pdf[/url]
What voltage do you get between pin 5 and ground in the working board? Also it seems like pin 8 is connected to 12v supply.
I think the MAX17140 IC is supposed to provide the 5v supply through the route i marked in the attached picture - can you confirm with the working board. Thanks.Re: Vizio 60" E601I-A3 no display...Leave a comment:
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Re: Vizio 60" E601I-A3 no display have sound
Could anyone figure out what these components are? Diodes?...Leave a comment:
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Re: Vizio 60" E601I-A3 no display have sound
Thanks!
And please - Would you be able to identify the following components -
COXA 16(sideways)
XOW 11(sideways)
B1 Y225
B2 Y234
C403 233Leave a comment:
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Re: Vizio 60" E601I-A3 no display have sound
I have attached a picture of a regulator that may be suspect - I see 12v on one pin and gnd on tab - but the output pin (noted in blue) also shows 12v.
The regulator is marked as X7W 16 (16 is printed sideways). Anyone know what that is?...Leave a comment:
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Re: Vizio 60" E601I-A3 no display have sound
I am in the exact same boat.....
MAX9684 is a microcontroller it seems - [url]http://www.xeltek.com/device_lists/MAXIM/MAX9684/[/url]
None of the chips are getting 5v power supply -
MAX17140 seems to be a power management module - [url]http://www.mouser.com/ProductDetail/Maxim-Integrated/MAX17140EVKIT+/?qs=ffX8NcjNb2SkoHXvsAjpSw%3d%3d[/url]
But all the chips need a 5v Vcc to operate and i cant find which regulator is responsible for the 5v bus.Re: Vizio...Leave a comment:
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