[TechAssist] Re: Symphonic TVCR model WF0213C (mfgrd.2002)dead,whine
- From: Philip Bader <tjanphyl@xxxxxxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 25 Jul 2003 14:49:00 -0400
Appears to interconnect with several white ribbon cables.
At the risk of sounding ignorant, I am on the download site now,but
what's the file name? None appear to be the right one without opening
them all...
D615 you refer to as over voltage crowbar appears to be from my
research, a 33 volt zener.
My A1271Y transistor crosses to an NTE383 PNP.
Thanks in advance,
Phil Bader
John at Main TV wrote:
>
> I am not familiar with that exact model number. Does the VCR mechanism
> unpluf from the board or is it connected to the board with ribbon cable?
> It appears your model is the same as Symphonic SC313C, Syl 6313CC,
> Emerson EWC1302 and that manual is on the tech-assist members area for
> download. There is also a cross reference for Funai combi's in the
> members area. (combi model cross). Please let me know how your
> mechanism attatchs to the board so I know which mechanism it is and I
> will add it to the "combi model cross".
> On your TV, Q606 is apparently the 12v power on switch/regulator and
> D615 is an over-voltage protection crowbar on the 25v line. If that is
> shorted it would make the power supply whine and not run. John.
>
> Philip Bader wrote:
> > Unresponsive.Dead.Fuses all OK.
> > Plug in and hear a very faint whine from the SMPS.
> > Testing found the following SMPS parts shorted:
> > Transistor Q606,(small case, A1271 on part).(2SA1271?)
> > Diode D615,, small black, Zener symbol on board: (on part:2.B, ZC, 33)
> > Diode D629, small glass.No# on part.
> > All shorted. Need parts ID on these, and possible pattern of known
> > damage from any histories on this symptom/model.
> > Possible lightning,considering our weather.
> > Phil Bader
>
> --
> John Mielke
> Main TV
> Longmont,Co 80501
> 303 776 6955
> 303 776 0792 fax
> maintv@xxxxxxxxxxx
>
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--
Philip Bader
Jan Phyl TV Inc. (estab. 1976)
3420 Recker Hwy. Winter Haven, Fl. 33880
Fax (863) 299-8821
email: tjanphyl@xxxxxxxxxxxxxxx
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