[TechAssist] Re: Sony KV-27HSR10 (1990) H.O.T Overheating....
- From: Eric Manuel <tvman@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Sat, 01 Sep 2001 13:02:45 -0230
hi Bruce factory service says the change hot to 2SC4927 Eric
Bruce Tiedeman wrote:
>
> I can not find the previous post on this problem. I put in the original
> Output transistor , I soldered the driver transformer and connections in the
> Horiz. section. I did change the .47\50 cap at the driver transformer.
>
> Is there some thing else that has to be changed on this chassis. The
> transistor gets very hot. The waveform looks very clean at the base of the
> H.O.T . it starts to get hot after a few minutes.
>
> The original problem was a blown HOT transistor and the special damper diode
> . The R523 (.68 ohm resistor ) was over heated but not blown. I replaced
> this also.
>
> If I remember correctly these do run hot, just didn't wanted to send this
> out and have it come back...
>
> thanks for your input,
>
> Bruce
> B&T Electronics.
>
> Help make your TechAssist online repair tips
> database better! Submit your fixes here:
> http://www.circuitwork.com/techassist/tip/#tips
> To unsubscribe write to:
> techassist-request@xxxxxxxxxxxxx
> with unsubscribe in the subject line.
Help make your TechAssist online repair tips
database better! Submit your fixes here:
http://www.circuitwork.com/techassist/tip/#tips
To unsubscribe write to:
techassist-request@xxxxxxxxxxxxx
with unsubscribe in the subject line.
Other related posts:
