CurtPalme.com Home Theater Forum

[non_0815]

I habe a Panasonic PT-106.
The problem is that the Tubes don't start. So I don't see anything. I guess that there is some problem with the power.
When I switch it on everything looks fine - except that there is no picture (test pattern)
The Fan is going the red LED on the D and E-Board is on and the end of the Tubes are glowing.

I know that this model is similar to the PT-105 so I already downloaded the Techguide and Servicemanual from curtpalmes great page.

I checked the parts from the service manual on page 19 but this seems ok.
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How it happend:
The crt was on and working fine. I left the room for a moment and when i came back the tubes were off...

I'm not so familar with crt Projectors so I hope sombody can help me to fix this great pice of technic.

Many thanks in advance

[non_0815]

Today I lookt over it again and found something, but I don't know what causes the problem. On the P2 Board on P34 should be on pin 6 -28V but I have only 0.3V. Hopefully someone can help.

To see what I mean please look at

http://www.curtpalme.com/docs/PanasonicPT105_Service_Supplement1.pdf

on page 23 and 24 is the P3 Board shown.

I really dont want to bury the Projector.

Thanks
Robert

[non_0815]

finally i solved the problem.
it was the resistor R9312 on the P3 PC Board.

if someone got the problem that he have no image at all check the -28V on PC board C connector C1 Pin 6...

Many thanks to Curt Palme for the detailed Manual from the Panasonic PT-105

[Curt Palme]

Good servicing, that's one I've never had to repair. I've had two through here, and they both worked fine.

[Curt Palme]

Good servicing, that's one I've never had to repair. I've had two through here, and they both worked fine.