[TechAssist] Re: test posting
- From: "Terry H." <tvdoc@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Mon, 17 Nov 2003 07:54:22 -0600
I've had 3 in the past few months that required Y4301 being changed. You
could ground pin 22 and see if the Horiz. stays up. But, if pin 26 comes up
and right back down, I'd change the resonator. Also, check for leaky 180uf
caps in that area if that version uses them. I've had them leak so bad they
destroyed U1001.
Terry H.
The TV Shop
Gonzales, Tx
----- Original Message -----
From: "Peter G" <PGugs@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Monday, November 17, 2003 7:19 AM
Subject: [TechAssist] test posting
> ok here goes. the reason, jeff that i didn't post what parts i changed
> was not laziness but rather embarassment i changed lots of parts for
> instance q4401 c102 c104 c4401 c4402 all the diodes on the secondary
> of the sw mode transformer resoldered the driver coil all standby
> voltages are good b plus is present on q4401 and the driver the
> voltages on the chopper reg are all good iam starting to strongly
> suspect either u1001 or the resonator y4301 i think the problem might be
> intermittent operation of the h osc in u1001 have any of you ran into
> this? working on this chassis is always an adventure. thanks for the
> people who responded yeah even you AL M. also rang the fly and changed
> the damper diodepeter guglielmo aplus tv service margate fl
>
>
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