[TechAssist] Re: Zenith SS2504

  • From: Jorge Camboni <geomvd@xxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Tue, 15 Jan 2002 22:14:55 -0600

At 07:44 p.m. 15/01/02 -0600, you wrote:
>Came in with fuse main fuse blown 2 B+ diodes shorted and C3431 had
>vented,changed these parts and installed new STR54041 set fired up with
>video and audio ok. After about 1 minute lost video then shutdown. The
>regulator heat sink was too hot to touch, left unplugged for about five
>minutes and plugged back in, the regulator heat sink started to get hot
>again before the set was ever turned on. I checked the transistor near the
>regulator Q3431 it checked ok. No schematic nothing listed in Sam's for this
>There are just 2 caps around the power supply. One is 10mf, believe the
other is 22mf and at the other side of the heat sink. Just replace both and
try, most likely the 53041 will run at normal temp- 

good luck Jorge

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