[TechAssist] Re: Anyone seen this before on a Zenith C36A26, 9-2170 Module
- From: "al m" <ampm@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 4 Dec 2003 11:55:37 -0500
Check all CRT boards for bad solder.
Al Marquardt
ampm@xxxxxxx
Al Marquardt Electronic Repair
206 W Main
Girardville Pa. 17935
----- Original Message -----
From: "tomlee" <t8872695@xxxxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, December 04, 2003 11:43 AM
Subject: [TechAssist] Re: Anyone seen this before on a Zenith C36A26, 9-2170
Module
> Hi Corey.
> As I read this topic month ago on this forum . All filements in crt are
> paralelle.
>
> Dang TD electronics
> 18546 Sherman Way CA
> -----Original Message-----
> From: Corey Brazell <cohbraz@xxxxxxxxxxxxxx>
> To: techassist@xxxxxxxxxxxxx <techassist@xxxxxxxxxxxxx>
> Date: Thursday, December 04, 2003 5:40 AM
> Subject: [TechAssist] Anyone seen this before on a Zenith C36A26, 9-2170
> Module
>
>
> >Customer originally had a problem with this Zenith C36A26 with the Video
> >Input going black for a few seconds, then returning with the Video 1
banner
> >in the upper right corner of the screen. Zenith's tech assist said to
> >change the module. I ordered a new module from Zenith, and after I
> >installed it, the picture had too much red. I had written down the
original
> >cut and drive control, and after entering them in the service menu, the
> >picture had not changed. I noticed that the Blue and Green controls had
no
> >effect. I looked into the neck of the CRT and the Red Heater was glowing
> >much brighter than normal and there was no glow from either the blue or
> >green heaters. I inspected the CRT socket, but it looked fine. I tried
the
> >set once more after putting the CRT board back on, but the red heater
still
> >glowed, and no blue or green. I reinstalled the original module and all
of
> >the heaters came on as normal, but the red is now dimmer than it should
be,
> >as a result of the overdriving earlier. Zenith is sending me another
module
> >as well as a CRT, but I am curious. What could cause this? Aren't all of
> >the heaters connected in parallel?
> >
> >Thanks,
> >
> >Corey Brazell
> >Audio Video Electronics
> >12169 SC Hwy 121
> >Newberry SC 29108
> >
> >
> >
>
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