Does this seem like a gamma problem to you? Philips 42PFL3512D/12

[dominik0801]

Hello!

I have already fixed some TVs in the past years, but now I am planning to buy another faulty unit for cheap. However, checking the pictures that the seller made, I can't decide if it's a Gamma problem or not.

I'm open to learn new thingies, but I don't wanna waste too much money if it's not repairable.

The seller sent me the 3 attached pics.

What do you think?

[trunks81]

Re: Does this seem like a gamma problem to you? Philips 42PFL3512D/12

Looks like an AS15F IC issue to me ! That is located on the T-con

[dominik0801]

Re: Does this seem like a gamma problem to you? Philips 42PFL3512D/12

Looks like an AS15F IC issue to me ! That is located on the T-con

Yes, I have fixed that kinda problems too recently, but this color distortion seemed a bit different from what I saw before. I wasn't sure.

But if more people agree on the AS15/AS19 chip, I will buy it and give it a try.

[petehall347]

Re: Does this seem like a gamma problem to you? Philips 42PFL3512D/12

freeze the ic and see what happens

[dominik0801]

Re: Does this seem like a gamma problem to you? Philips 42PFL3512D/12

Well.. i have to buy the TV first and wait for it to arrive.
If I buy it in the first place ofc.

I'm just not sure if that will be the problem, thats the reason I made this thread.

[Davi.p]

Re: Does this seem like a gamma problem to you? Philips 42PFL3512D/12

Is it worth an expensive transport for a very old tv? Yes it is surely gamma problem, as15 if i remember. I have fixed the as15 on the 37" version. I remeber that was not a good bargain because it had channel memorization problem that needed too much expensive Philips service update, and it had no LCN organization.

[dominik0801]

Re: Does this seem like a gamma problem to you? Philips 42PFL3512D/12

Is it worth an expensive transport for a very old tv? Yes it is surely gamma problem, as15 if i remember. I have fixed the as15 on the 37" version. I remeber that was not a good bargain because it had channel memorization problem that needed too much expensive Philips service update, and it had no LCN organization.

Well, I am not buying it to use it, just to fix and then sell it. It's what I am doing nowadays to gain some extra money and practice before I get a job.

These kinda TVs in my country are listed (and sold) for ~$100 when working.
The bad unit is sold for ~$30, and I have an AS15 chip at home.

So if I can make ~$70 profit, I am more than happy.

This is the same profit I usually make after fixing then selling LED TVs with bad backlight.

Anyways, I will most likely buy it, if you all say it seems to be a bad gamma chip, I have too much free time, and every penny profit is good.

[Davi.p]

Re: Does this seem like a gamma problem to you? Philips 42PFL3512D/12

But you told about.a shipping, that will cost too much i think.. and don't forget the extra problems it can have as per my previous post..

[dominik0801]

Re: Does this seem like a gamma problem to you? Philips 42PFL3512D/12

But you told about.a shipping, that will cost too much i think.. and don't forget the extra problems it can have as per my previous post..

Oh yes, I forgot to mention, that the shipping is free (counted in the price to be more exact).

The other problems can ofc be annoying, I will definitely think about it again tomorrow.

[nomoresonys]

Re: Does this seem like a gamma problem to you? Philips 42PFL3512D/12

I would give it a shot, it looks like typical bad gamma chip, try freeze test as suggested. Philips are good tvs, I have one and it's every bit as good picture as a sony or sammy.