[TechAssist] Re: Hitachi 50EX8K runs with perfect pic/sound 30 sec, thumps and shutdown
- From: Phil Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 04 Dec 2004 13:48:42 -0500
Update:
I THOUGHT I saw a little flash of an arc coming from the front around
the CRTs as I heard the raspy noise.
I wonder if there is one yoke arcing.
If so, on this model can I unplug one yoke at a time as a test to
isolate the possible bad one? Can I run the set with one unplugged? I
think these are in paralell.
Phil Bader
Phil Bader wrote:
>Made in 1994.Other similar versions are:
>55EX9K,50EX10B,50EX11B,50EX12KV.
>Powers up with a perfect picture, sound and convergence. After maybe 30
>seconds, I hear an audible "thump" as it shuts down. Must unplug to
>reset. I closely looked at the power/deflection board for bad
>solder,visablly bad caps,stains,etc. but none seen, and tapping the set
>when on produces no signs of bad connections.
>I think I hear a slight raspy noise coming from the horizontal area just
>before shut down but the picture is unaffected. I ESR'd many small
>lytics around the vert, and regulators. All seem OK.
>I THINK it is an AP32 chassis.
>Phil Bader
>
>
>
--
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
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