[TechAssist] Re: Sony TV KV27EXR25, STRS Running Hot
- From: "D PANDAY" <dpanday@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Thu, 26 Sep 2002 16:28:22 -0400
Bruce,
I have used Strs' from other supplier, never had any problem.
However, if your B+ is ok. I will check all my Capacitor in the hot ground.
Make sure you use silicone on the STR...
Hope it helps'.
Panday
>From: "Bruce Youmans" Reply-To: techassist@xxxxxxxxxxxxx To: Subject:
>[TechAssist] Sony TV KV27EXR25, STRS Running Hot Date: Thu, 26 Sep 2002
>07:28:10 -0700
>
>Manufacturer: Sony Model: KV-27EXR25 Chassis: SCC-D50F-A Problem: STRS 6031
>Runs very hot.
>
>This set originally was dead. Found numerous bad solder connections on
>power supply supply board. Repairing these did not fix the problem. Found
>STRS-6031 voltage regulator bad. Replaced with an OEM "A" version. Set runs
>fine. Regulator output voltage is normal at 158 volts and regulates well.
>The concern is that after 20 minutes of running the regulator and heat sink
>is very hot. Almost too hot to touch. Is this normal? I have ESR'd all
>supply capacitors, all load voltages seem fine and regulator input ontput
>ripple is within specification.
>
>Any thoughts appreciated.
>
>Bruce Bruce's TV Service Sierra Vista, Arizona Youmans@xxxxxxxx
>
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