[TechAssist] Re: Toshiba TZ50V61..HV too high?
- From: "Damon" <DAMON101@xxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Sun, 31 Aug 2003 06:50:56 -0500
Yeah, make sure the HV regulator circuit is regulating.
----- Original Message -----
From: "Valley TV" <valleytv@xxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Saturday, August 30, 2003 10:56 AM
Subject: [TechAssist] Toshiba TZ50V61..HV too high?
> Hi guys!
>
> Customer called with Toshiba TZ50V61 with only front red light blinking.
I immediately thought "this will be easy" and made sure that I had the 2
STK's for convergence and an audio out chip with me (in case). I was
surprised to find a hv arc coming from the anode cap of the green crt
instead! I removed the cap, cleaned the area, installed a new cap and
sealed it. Great pix! Thought this was certainly better than replacing the
STK's!
> Three days later the customer called and said the set was arcing again.
I went back with a new green crt assembly even though I was sure that I had
done a good "seal" job.
> Surprise.. The HV divider assembly had cracked open on the side and hv was
arcing everywhere. I thought this was really too much of a coincidence so I
ran out to the truck for the hv probe. Of course it had been a LONG time
since I used the probe in my truck and was not happy to see that it only
measured up to 30KV. Well, it pegged the probe but I know that the hv in
this set would be 35kv with nothing connected to the crts.
> I ordered the divider and it arrived Friday night but I was wondering if
anyone has any thoughts on this before I return.
>
> TIA
>
> Gary
> Valley TV- Berwick, Pa office
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