[TechAssist] Re: Sylvannia(Funai) SRT2027 dead
- From: "J Silverman" <greentron@xxxxxxxxxxxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Thu, 10 Jan 2002 20:39:12 -0500
Sounds similar to one I had about a year ago. The resistors were burned up,
220 ohms I think. The solder on the 9 volt zener was crystalized from the
heat. The resistors were fed from a rectifier off the SMPS secondary. There
was also a 30 volt zener from the rectifier to ground. The 30 volt zener was
shorted so I had no voltage to the resistors. Funai T/A said I would
probably have to replace the IC too. But in this unit replacing the 30 volt
zener and the burned resistors was all that was necessary.
Funai T/A knew right away what the damage was so it must be common. It was
warranty so I ordered all the parts they suggested but the IC never came in.
Perhaps they have them in stock by now. Cause of the problem was SMPS
runaway. Could not find anything wrong with the SMPS.
Jerry Silverman
Greentron Inc
4 Newland Ave
Greenville SC 29609
864 232 3889
Fax 271 2080
mailto:greentron@xxxxxxx
----- Original Message -----
From: "Kerry & Cherie" <alterego@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Thursday, January 10, 2002 7:36 PM
Subject: [TechAssist] Sylvannia(Funai) SRT2027 dead
> I have a 27" Sylvannia(Funai) STR2027
> came in dead,no obvious shorts(horz out,etc).
> relay clicks,has 105 volts on horiz output,
> no horiz drive signal from IC301.
> R396 & R397 very discolored and D396(zener)
> also warm and discolored.Has 8.6volts on it,
> I assume b+ for IC301(M61203c).I,m thinking
> maybe this IC is bad? any one have any experience
> on these sets? 2000 model.I don't have the service
> manual ...Any help would be qppreciated! Thanks,
> Kerry,KER-TEK TV, Medford Or.
>
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