Philips 42PFL9664/12 blury picture lousy refresh rate

[DrazenJ]

Hi!

I have problem with my Philips tv set.
For a start there was a picture only in the upper most part of the screen (some 1 cm wide)and the rest of the screen was dark.
I have clean the contacts and find out that when I have disconected left t-con control I've got picture on the right side of the screen.
Searching trough the Internet I saw solution where you place small ammount of the tape over the gold contacts of the t-con flat cable (ca 5mm) and I have got picture on the left side of the tv as well!
But the problem is that the refresh rate on the left side is horrible now. You can see previous picture of the menu for e.g. on the picture I've took.
Can someone point me where to Search for a fault?

Btw there is not reported errors in the service menu of the TV set.

[ReeceyBurger123]

Re: Philips 42PFL9664/12 blury picture lousy refresh rate

Take the frame of the Lcd module off and press on the tab bonds see if it clears up. Look on youtube for tab bond repair.

[DrazenJ]

Re: Philips 42PFL9664/12 blury picture lousy refresh rate

I did that! Nothing has changed. I saw that solution as well but it did not helped in my case. There is not a single change when playing with a tab bonds..

[CapLeaker]

Re: Philips 42PFL9664/12 blury picture lousy refresh rate

I also would say it is the tab bonds or something with the ribbon that does the left side.

[DrazenJ]

Re: Philips 42PFL9664/12 blury picture lousy refresh rate

I also would say it is the tab bonds or something with the ribbon that does the left side.

Thank you for inputs.

Here is an update.

From the t-con board there is a some noise sound which is present only when both flat cables are connected.
As soon as I disconect faulty side flat cable the sound is gone.
The sound is comming from the low voltage regulator ld1086-18. It looks litlle bit burned as well..
So now I will measeure a voltage comming to tcon for First or do you have any other suggestion?

[DrazenJ]

Re: Philips 42PFL9664/12 blury picture lousy refresh rate

Voltage between regulator pins are as follows:
33 V between pins ,
15 V between input and output
18 V between output and ground.
Well as far as I found is that the maximum input voltage should be 30 V so does it mean I have to high voltage on the input and way to high voltage on the output?
Tnx in advance