[TechAssist] Re: Symphonic TVCR model WF0213C (mfgrd.2002)dead,whine
- From: John at Main TV <maintv@xxxxxxxxxxx>
- To: techassist@xxxxxxxxxxxxx
- Date: Fri, 25 Jul 2003 11:17:01 -0600
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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