jakdedert wrote in message
.. .
N Cook wrote:
Shorted power rails in the 15 pin 100W, output device marked
Carvin 60-72940
Before I replace it with a fudge-pinned TDA7294 , has anyone been here
before ?
I'm assuming the Carvin one is no more than a pinning variant of the 15
pin
, 100W SGS device, especially with 7294 in the Carvin number


--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/



I'd be surprised if Carvin had the volume clout to source a custom
designed device. More likely a standard device, rebadged.

jak

There was a label over the Carvin one, not that that was obvious, that had
melted into the encapsulation. Peeling it back , there was TDA729 underneath
but then the last part nearly charred.

The new V version that I have here , although new, at-hand spare, must be
seriously faulty. Even assuming funny MOS behaviour to diode/resistance pin
to pin checking, there are 6 seriously low ohmic connections to the heatsink
and none for the non-V .

--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/