Phillips Convergence or HV Block/Splitter

TVRE · Joined: 11 Nov 2007 Posts: 9

Hello

I have a Phillips 50in Projection TV:

model: 50P8341
chassis: PTV-915

The picture is very blurry and you can't make anything out.

If I adjust the color for the green and red tubes the image clears up ,but the blue tube stays blurry.

The coolant has been recently changed.

My questions is:

Is this problem with the HV splitter or STKs?

What are symptoms of a bad HV block?

What is the part number for this block?

Also sometimes the HV block behaviors erratically. (The green adjustments affect the red tube)

Thanks

minnie · Joined: 18 Aug 2005 Posts: 2880 Location: Hell

Swap focus/screen leads on the block to see if it's the block. Swap green and blue. Who changed the fluid? When I do these I do both the green and blue. Red doesn't grow the algee. It looks like contaminated fluid to me. It's not convergence.

Guest · Posted: Tue Jun 03, 2008 9:56 pm Post subject:

Hi

I bought the TV from someone and they said the fluid was changed.

I took out some fluid out of the blue tube and it's crystal clear.

How exactly does contaminated fluid look like?

I will try swapping the screen/focus leads on the block.

As well as the green and blue.

Thank you

minnie · Joined: 18 Aug 2005 Posts: 2880 Location: Hell

When the fluid is dirty it looks like mountain dew. Instead of clear it's yellowish and brown hunks of crap floating around.

Guest · Posted: Tue Jun 03, 2008 10:24 pm Post subject:

Hello

The fluid actually has very slight tint of yellow.

I have ordered a 16oz of coolant.

The HV block doesn't have scew in leads.

Instead they go directly into the unit.

The number printed on it is 0321F690541

Thanks

minnie · Joined: 18 Aug 2005 Posts: 2880 Location: Hell

There should be 1 screw holding the block in. You should be able to scoot the rubber boot up and it should unplug?

TVRE · Joined: 11 Nov 2007 Posts: 9

Hi

Here is a picture of the block.

Thank you for your help

minnie · Joined: 18 Aug 2005 Posts: 2880 Location: Hell

I stand corrected. I forget Phillips equals cheap. Stick with changing the fluid. Also wipe out the inside of the tube also. I use windex and paper towels,

TVRE · Joined: 11 Nov 2007 Posts: 9

HI

I guess I will change the coolant.

Also there is no way into the lens of the CRT.

There is only one plug to drain/fill the tube.

TVRE · Joined: 11 Nov 2007 Posts: 9

Hi again

I forgot to mention, there are small droplet of liquid in the CRT. There is no way to get to them.

Thanks