[TechAssist] Re: Zenith Z52Z95D 9-1674 no video, red crt blurry/smeared convergence issues
- From: "tvservice" <tvservice@xxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 23 Jun 2005 12:45:48 -0500
we only replace the boards as a pair and all three crt resistors
we had the same problem as you
also test the hv splitter for cracks and @50-52 K ohms across the gray
wires, if the old number A-17196-05 is still in the set it gets an new
A-171796-12 included if they dont approve estimate we walk away with no head
aches
Robert
tvservice@xxxxxxxxxxxxx
H & H Electronics Inc
----- Original Message -----
From: "Larry E" <videotech@xxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, June 23, 2005 11:50 AM
Subject: [TechAssist] Zenith Z52Z95D 9-1674 no video, red crt blurry/smeared
convergence issues
> Hi Guys, This Z52Z95D has the 9-1674 sweep and 9-1690 converg boards,
complaint was no video has sound,
> replaced the 9-1674 module, set came up fine, but video was not good, when
the weather channel, CNN, etc.
> puts up letters there is a green haze around the letters, put up the
customers cross hatch and the red & blue
> horizontal is missing (from top of screen to bottom) the green is there,
all 3 colors are there vertically(left to right)
> pulled R3243 behind the horiz. heatsink the 110K and R3244 the 82K as this
is a known failure for the horiz.
> convergence bars missing, they are both good out of circuit, looked into
the lenses and the red video is smeared/
> washed out looking, this does not show up on the screen?? sprayed R5102
with freeze mist and red crt went blank,
> sprayed same resistor on green crt board and green blanked out, I did not
have 110K 1/2 watts with me so couldn`t
> change them, before I could go out there today and replace them the
customer called and said the set has
> again failed with same problem, no video has sound, he shuts off set for
1/2 hour and set runs normally for 45 minutes
> then loses video again. This is the third time in 1 month that I have had
similiar symptoms with the 1674/1690
> combination of boards, convergence goes out, replace the 1690, set runs 24
hours and convergence fails again,
> or no video/dead set, replace 1674 set runs for 1-2 days and repeats the
failure, if I replace both boards at the
> same time I`m not getting the re-call, this is killing my bottom line with
all these freebie return calls, is anyone else
> running into this scenario?? Ed at Tri-State Module says Sears will now
only change them as a pair, too many
> recalls, any ideas? Sorry for the long post, I have 2 customers waiting on
me to "fix their set" Larry E
> Larry Eastman
> American TV & Electronics
> Crystal River, Fl. 34428
>
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