Adjustable regulators?

[ivtec]

Hi guys; i have here some regulators that i don't know if are Fix or adjustable,to replace AmC 1117 ,

this one has these stamped on the case,i can't find nothing about it,4CJE - No5B .

Also i have G1117, is this a Adjustble reg.


i'm trying to repair a Vizio VW37Lhdtv10A that i plug in has yellow light then i press power it turns white no back light.Thanks

[dick_barton]

Re: Adjustable regulators?

AMC1117
https://cdn.badcaps-static.com/pdfs/...a5ef18a319.pdf

G1117
https://cdn.badcaps-static.com/pdfs/...25e7d2649f.pdf

[R_J]

Re: Adjustable regulators?

The one marked N05B is TI's LM1117IMPX-3.3/NOPB (page 24 of pdf)

[ivtec]

Re: Adjustable regulators?

Thanks guys; i'm not good at reading specs ,can i use ,either LM1117 or G1117 in place of AMC1117 adjustable regulator?
it's a little confusing it states in the specs that these come in fix and adjustable regulators!

[budm]

Re: Adjustable regulators?

1117 Fixed output regulator will have pin 1 connected directly to GND, Adjustable will have one resistor between GND and pin 1, another resistor is between Output pin 2 and pin 1.
Good Adjustable should should show 1.25V between pin 1 and the output pin 2.
So report the Voltage readings of all 3 pin so we can tell if it is good or bad.

[budm]

Re: Adjustable regulators?

Thanks guys; i'm not good at reading specs ,can i use ,either LM1117 or G1117 in place of AMC1117 adjustable regulator?
it's a little confusing it states in the specs that these come in fix and adjustable regulators!

So report the Voltage readings of all 3 pin so we can tell if it is good or bad.

[ivtec]

Re: Adjustable regulators?

So report the Voltage readings of all 3 pin so we can tell if it is good or bad.

Thanks Budm ; Ok latest Update on repairing of Vizio VW37l hdtv10A that did not have pic or back light when plugged in had yellow logo and when pressing power it would turn to white logo but no pic so i changed U7 Amc1117 with G1117 now it turns on and i have pic but with washed pic seems like missing a color,maybe i should change U33 Amc1117 also? i send some pic attachments,any advice thanks.

[budm]

Re: Adjustable regulators?

https://www.badcaps.net/forum/attach...6&d=1524351145

That is bad GAMMA Voltages.
We need to see good clear pictures of the T-CON board, you should be able to test the GAMMA Voltages at the test points on the T-CON board.

[ivtec]

Re: Adjustable regulators?

https://www.badcaps.net/forum/attach...6&d=1524351145

That is bad GAMMA Voltages.
We need to see good clear pictures of the T-CON board, you should be able to test the GAMMA Voltages at the test points on the T-CON board.

Thanks Bud but i think this model; the T con board is part of the main board i don't see a separate T con board


https://www.badcaps.net/forum/attach...1&d=1465056458

[budm]

Re: Adjustable regulators?

It has T-CON board on those I repaired with bad regulators.
Vizio VW37L hdtv10A
http://www.shopjimmy.com/catalogsear...+VW37l+hdtv10A

It should be under the metal shield.

[ivtec]

Re: Adjustable regulators?

It has T-CON board on those I repaired with bad regulators.
Vizio VW37L hdtv10A
http://www.shopjimmy.com/catalogsear...+VW37l+hdtv10A

It should be under the metal shield.

Thanks Budm you're the best,i wouldn't guess in a million years,i have taken it out,should i look at anything/? or i should replace it? but price for T con board is absurd pricy , jimmy has this part to replace but that's too much of a job for me, my yes are no ar par, thanks

http://www.shopjimmy.com/catalogsear...+370xw02+v5+cb

http://www.shopjimmy.com/auo-55-37t0...repair-kit.htm

[budm]

Re: Adjustable regulators?

For 37" TV is expensive, it is more likely to be bad GAMMA IC AS15 / or AS19; I cannot read the P/N.

[ivtec]

Re: Adjustable regulators?

For 37" TV is expensive, it is more likely to be bad GAMMA IC AS15 / or AS19; I cannot read the P/N.

Thanks ;it's AS 15, but this is a job not for my old eyes,if i had a MICROSCOPE but don't have,

this is sold on Ebay under 20 bucks and on these sites for under 30 bucks, i sure don't trust Ebay ,i was burned a couple times;do you trust any of these? or do you have a trustworthy place were i can buy this for under 30 bucks?thanks



http://newworldelectronics.net/estor...product_id=617


https://www.ebay.com.au/itm/OEM-T-co...75.c100623.m-1

https://www.aliexpress.com/wholesale...V5+CB+06A69-1A