CurtPalme.com Home Theater Forum

KheeseKake · Joined: 11 Jan 2010 Posts: 8 Location: New Zealand

Hi, I recently acquired a Sony VPH-1031QM which appears to be in good condition apart from the fact that it seems to have fungus growing in the coolant for the blue tube and this seems to be causing the picture to sometimes look very hazy and unclear. I have been researching how I can remove the tube from the projector and replace the coolant with a mixture of fresh ethylene glycol and glycerin. However, I was wondering if anyone would be able to tell me how much ethylene glycol I would likely need to get a hold of in order to make up enough coolant for a 75% glycol / 25% glycerin mixture to refill just the one tube.

Thanks in advance!

Ile · Posted: Mon Jan 11, 2010 9:47 am Post subject:

I think capacity was about 2.5-3 dl, debend about how thick those silicone seams are.
Also 100% glycol works fine, you can use ethylene- or propylene glycol (pharmacy).

First you have to get rid of that fungus in tubes face plate and front glass, try CLR first.
http://www.curtpalme.com/CLR_Defungus_Sony_Tubes.shtm

This cleaner can be used in Europe, where you can't find CLR.
http://www.wilkinsonplus.com/content/ebiz/wilkinsonplus/invt/0223006/0223006_l.jpg
Let it be in tube least 15 minutes...

Other method is harder, since you need to remove front glass.
http://www.curtpalme.com/Fungus_Removal1.shtm

KheeseKake · Joined: 11 Jan 2010 Posts: 8 Location: New Zealand

**Curt Palme** · Posted: Tue Jan 12, 2010 12:31 am Post subject:

I've never had a case where the CLR method doesn't work. The trick is to swish it around for 10 minutes.

Use gloves or make sure that you have no cuts on your hand, as it will sting if you get CLR on your hand..... Smile

KheeseKake · Joined: 11 Jan 2010 Posts: 8 Location: New Zealand