CurtPalme.com Home Theater Forum

Axel87 · Joined: 26 Jun 2010 Posts: 22

Hello again everyone

I just want to say how awesome this site is, and thanks to all those who help out!
Anyways, Ive just picked up a Philips 60' rear projector tv. - side note- I hope this is in the appropriate thread.
I know that one tube is burnt out, and am having trouble even finding a owners manual for it.
Does anyone have one hidden away somewere in the drives for these old things?
I am hoping that I can cross-reference this model with another to find some parts.
A good site for parts would be greatly appreciated also.

Philips- 60VB2K3RF

Again, I apologize if this is in the wrong thread. Thought Id give it a shot.
Thanks

**Curt Palme** · Posted: Thu Oct 06, 2011 2:15 am Post subject:

Just FYI- are you SURE the one tube is 'burnt out'?

Tubes don't generally burn out, but video circuits do, ending up with no picture on the tube face.

Axel87 · Joined: 26 Jun 2010 Posts: 22

Tube is arcing when I try to turn the tv on.
It has a serious difference in discoloration compared to the other tubes in the unit.

macgyver655 · Joined: 22 Aug 2007 Posts: 8508

There is a good chance the tube is cracked under the deflection yolk. Which color is it?

Axel87 · Joined: 26 Jun 2010 Posts: 22

Its the blue tube.

I found one on ebay.

P/N: P16lxl00bmb

I did find a huge crack on the bottom of the yolk. What causes an arc in the tube then? Sorry for the noob question.

No one have any manuals/schematics on these units or something similar???

Axel87 · Joined: 26 Jun 2010 Posts: 22

I did end up replacing the Blue tube, but when I hook everything up again. It appears the smoke has escaped Shocked

Ive been doing a little searching and reading, and I did find the service manual.
Ive attached a page extracted from it, looking for someone thats a little more savvy than I to help me understand what has happened.

Resistors 3149 and 3150 have burnt up.
It will be easy enough to replace them, but I am wondering what is going wrong that could have caused them to burn up?

(On a side note, I dont think its the cause but, I do not have the rubber boot that goes on the red HV wire that goes to the tube from the board, it was not included w my new tube and I misplaced the last. Wondering if this could be a concern.)

Thanks again!

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Yes, that will be a concern, if you mean youre missing the anode cap and youve just got the anode lead in the tube with no insulation, that could and probably will be a huge concern. If you mean the other end where it goes into the HV splitter, that will be less of a concern, but still not ideal.

Axel87 · Joined: 26 Jun 2010 Posts: 22

I meant the end that goes into the HV splitter.
I will try digging around, see if i can locate the boot or rig something similar up.
Thanks for the help though.
Anyone have any ideas as to why the resistors burnt up though????

barclay66 · Posted: Mon Oct 24, 2011 8:19 pm Post subject:

Hi,

When looking at the schematics it seems logical to me that something went wrong when you reinstalled the yoke connectors of the blue tube. The resistors are part of the circuitry responsible for the blue convergence correction yokes. I can't imagine that anything was wrong with the circuit itself or its power supply as nothing similar happened for the green and red channel...

Regards,
barclay66

Axel87 · Joined: 26 Jun 2010 Posts: 22

Hello everyone,
sorry for the delayed reponse, had to wait to get parts.

Alright, so after replacing 2 burnt up resisotrs, the 2 convergence ic's and the blue tube. I am back were i started Thumbs Down

Fail..

When I turn on the unit there is a arc inside the electron gun then nothing. I did see a couple sparks on the top of the CRT card this time though.
I did replace the boot and clip to go on the HV splitter also, and triple checked the wiring to the CRT so that should not be an issue.

I am at a stop here as to were to turn. Any ideas?
Thanks again

macgyver655 · Joined: 22 Aug 2007 Posts: 8508

I could give a generalized answer but I'd rather be specific as to the tv itself. So first off, is that model number correct or is there another number on there somewhere? The number you list does not seem to be a widely used number.

Axel87 · Joined: 26 Jun 2010 Posts: 22

I believe the series model number is DPTV305.
I do have the service manual if you think it may help.

thanks!

macgyver655 · Joined: 22 Aug 2007 Posts: 8508

Axel87 · Joined: 26 Jun 2010 Posts: 22

I tried to remove the blue crt card and turn the unit on to see if just the blue/red would operate.

I heard the clicking/popping/snapping sound I heard before( sorry its a odd sound, similar to a shorting relay??), but obviously with no arcing in the tube.

Any ideas?

macgyver655 · Joined: 22 Aug 2007 Posts: 8508

Axel87 · Joined: 26 Jun 2010 Posts: 22

Under the service manual I have it has parts list for the 60VB2K3RF. So I assumed it was the correct one.

I thought about it, but I read somewhere that by removing the HV wire on one unit and turning the unit on you risk burning out the other 2 though. I will try that though if you recommend it.

macgyver655 · Joined: 22 Aug 2007 Posts: 8508

Axel87 · Joined: 26 Jun 2010 Posts: 22

After trying what you suggested I did not hear the popping/relay switching sound, but i did get an arc in the red electron tube, simliar to what happens in the blue, and resistors 3059 and 3060 burnt up.
Good thing I ordered 10 or those last time this happened. haha

Ideas on what is going on?
To me that rules out the CRT card that I susspected and also anything going on with the blue tube. Do we then go to the SSM board?
I dont believe its a convergence issue, but I have not done any voltages readings either.

Thank you for your time and advice!

macgyver655 · Joined: 22 Aug 2007 Posts: 8508

Email me a copy of that manual. My copy of the DPTV305 does not show that model number.

Axel87 · Joined: 26 Jun 2010 Posts: 22

sent the manual out