[TechAssist] Philips PTV630 HV transistor shorted
- From: Al Gutz <alg@xxxxxxxxxxx>
- To: tech assist <techassist@xxxxxxxxxxxxx>
- Date: Wed, 25 Sep 2002 22:26:42 -0400
Could use a bit of info on this PTV630 philips. Don't see many because
there isn't a philips dealer in this area.
The high voltage O/P transistor is shorted. All power supply voltages
appear normal, deflection aand audio is working.
Question: there is 130V on the collector of the HV transistor 2DS1556
which is shorted so there must be a fuse or fuse resistor somewhere in
the emitter line, could someone tell me the location and value of the
fusable.
Found tips on ptv620 and a .0019uf cap was mentioned as possible cause
and to check the blue crt, does this apply to the 630 as well?
Any suggestions welcome, may save an extra trip as I have to work on
this on site.
Al G
Al's TV-Electronics
Pembroke Ont.
Canada
613-732-3240
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