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[TV] Re: philips 55pp9401 blue horizontal linearity problem
I would double check those resistors with the convergence yokes unplugged. If none of them are bad you probably have a bad DCU.
Dewayne Turner
Quality TV Service
259 East Jackson Street
Martinsville, IN 46151
765-342-4198
765-342-5240 fax
qtv@xxxxxxxxxxxxx
________________________________
From: John Peters <peters@xxxxxxxx>
To: tv@xxxxxxxxxxxxxxx
Sent: Friday, April 3, 2009 11:01:34 AM
Subject: [TV] Re: philips 55pp9401 blue horizontal linearity problem
I have the template and i have tried to realighn. It is a pain to do if
you never done this one. I checked all the low ohm resistors all ready 3
times. I have the board out no less than 5 times. This set was in 2
other shops before me for this problem.
> You likely have a low ohm resistor located near the STK's that is open. More than one of them may be bad. You have to disconnect the convergence yokes before you measure them or you will get a false reading. Since you have cleared the DCU you will have to do a complete reconvergence and you will need a template to do this properly. The convergence can be done without a template but it is very difficult to get the convergence adjusted so that the auto convergence will work. Also without a template you will likely increase your adjustment time from 3-4 hours to 2 or 3 times that long.
>
>
> Dewayne Turner
> Quality TV Service
> 259 East Jackson Street
> Martinsville, IN 46151
> 765-342-4198
> 765-342-5240 fax
> qtv@xxxxxxxxxxxxx
>
>
>
>
> ________________________________
> From: John Peters <peters@xxxxxxxx>
> To: tv@xxxxxxxxxxxxxxx
> Sent: Thursday, April 2, 2009 8:21:19 PM
> Subject: [TV] philips 55pp9401 blue horizontal linearity problem
>
>
> This set will not adjust the blue lin on the left side. I cleared the
> dcu data which states in the manual it then has no dcu correction now.
> Still is non linear on the left side. I replaced both stk chips 2 times
> with new and checked the low ohm resistors. Could it be the convergence
> yoke coil? I did use a inductance meter and the all check very close.
>
>
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