[TechAssist] Re: Philips PTV630 HV Part ID needed

Al..You NEED to include the model number.
http://www.tritronicsinc.com
You can probably find the ID's here, but you have to search by model number.
I probably have the info, but under the model number.
If they don't have it, email me tomorrow and I will pull the schematic, but
someone will probably send you the values before then.
one is 68 ohms, I believe.
I would fire the set up with out the blue tube connected, first...if it works,
then connect the blue tube, if it then shorts the 1556, you know the blue tube 
is
cracked, but not visible.

Jeff
FAX 717-564-4952
Intrepid Video & Electronics
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Harrisburg PA 17111-2055
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----- Original Message -----
From: "Al Gutz" <alg@xxxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Sunday, September 29, 2002 10:04 PM
Subject: [TechAssist] Re: Philips PTV630 HV Part ID needed



Could someone please ID a couple of parts for this set

Need value of:

R934   of HOT emitter  (looks like 2 red bands then a gap)
R925  2 watt

Checked the crts and see no cracks in face or fluid in the neck, going
to put in new HOT and see what happens.
Thanks

Al G
Al Gutz wrote:
>
> 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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