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Search: Keyword(s): ; Posts Made By: ChuckF.
Forum: Rear Projection Units   02-07-2016, 10:11 PM
Replies: 2
Views: 53
Posted By ChuckF.
Cheap lamps are false economy, because they have...

Cheap lamps are false economy, because they have a high out-of-the box defective rate, and at best they last only six months or so. Their level of brightness can be too bright (ie runs too hot) or...
Forum: Rear Projection Units   02-07-2016, 10:08 PM
Replies: 3,780
Views: 486,283
Posted By ChuckF.
If the lamp is a cheap $38 knockoff, six months...

If the lamp is a cheap $38 knockoff, six months is about all you can expect from it. Unusual that the screen lighting would be uneven though. I'd remove the lamp and see what it looks like and shine...
Forum: Rear Projection Units   10-04-2015, 11:05 PM
Replies: 4,018
Views: 396,482
Posted By ChuckF.
Yes, behind the screen, just forward of the main...

Yes, behind the screen, just forward of the main lens. The signal from the remote bounces off the main mirror and goes down where it can hit the sensor. You can probably see it by removing one of the...
Forum: Rear Projection Units   01-14-2015, 08:36 PM
Replies: 8
Views: 349
Posted By ChuckF.
Over the last couple of years I have used these...

Over the last couple of years I have used these guys, and others have reported favorable results: http://www.ebay.com/usr/niosales

Even the most reputable sellers may sell the knockoff Chinese $38...
Forum: Rear Projection Units   01-06-2015, 09:14 PM
Replies: 4,018
Views: 396,482
Posted By ChuckF.
That's a good buy. First signs of the typical...

That's a good buy. First signs of the typical problem that affects the DILA's shows up best on a white screen as slight yellow clouding in one quadrant of the screen and magenta in another. Often...
Forum: Rear Projection Units   12-21-2014, 06:09 PM
Replies: 8
Views: 317
Posted By ChuckF.
That's Sony marketing bullcrap. All the SXRD sets...

That's Sony marketing bullcrap. All the SXRD sets have the design problems. See Linke's site for more: https://sites.google.com/site/sonylcdrptvproblems/

Re your new lamp, if the Philips name is...
Forum: Rear Projection Units   11-30-2014, 07:07 PM
Replies: 17,355
Views: 1,612,526
Posted By ChuckF.
A 70" TV is still a premium size. If it is...

A 70" TV is still a premium size. If it is working well I'd ask $300. Take some good quality pictures of it showing a good HD picture, and also with it off. Warn about the weight. Make sure you make...
Forum: Rear Projection Units   11-24-2014, 05:54 PM
Replies: 2
Views: 436
Posted By ChuckF.
You may have bought an Osram Neolux. Osram...

You may have bought an Osram Neolux.

Osram introduced their own cheap line of lamps a while back called 'Neolux', to be sold along with their primary offering, the P-VIP lamps. I expect the Neolux...
Forum: Rear Projection Units   11-15-2014, 08:05 PM
Replies: 5
Views: 308
Posted By ChuckF.
That unfortunately is typical. Looks like the...

That unfortunately is typical. Looks like the start of blue LCD panel burnout. See...
Forum: Rear Projection Units   11-14-2014, 06:44 PM
Replies: 5
Views: 301
Posted By ChuckF.
Yes a cheapie can do this. A defective or worn...

Yes a cheapie can do this. A defective or worn out lamp can do this. As a UHP lamp warms up it becomes more difficult for the lamp driver to light. This also happens as the lamp ages. Look at the...
Forum: Rear Projection Units   11-14-2014, 06:29 PM
Replies: 5
Views: 308
Posted By ChuckF.
Not a common failure mode on these sets. A photo...

Not a common failure mode on these sets. A photo of the defect might help. Is it a cloudy smear or a line of a single or a few pixels height?
Forum: Rear Projection Units   11-12-2014, 09:46 PM
Replies: 5
Views: 301
Posted By ChuckF.
Is the lamp an Amazon $38 "OEM-equivalent"? ...

Is the lamp an Amazon $38 "OEM-equivalent"?
How old is the new lamp?
Forum: Rear Projection Units   10-14-2014, 08:02 PM
Replies: 12,112
Views: 1,603,287
Posted By ChuckF.
Five red XBR2 means "lamp driver bad", aka...

Five red XBR2 means "lamp driver bad", aka ballast.

Fault indications in any set with a lamp are not always reliable in the case of "bad lamp" or "bad ballast". That's because all that lies...
Forum: Rear Projection Units   10-03-2014, 08:16 PM
Replies: 4
Views: 440
Posted By ChuckF.
It appears your tv repair man knows his lamps. ...

It appears your tv repair man knows his lamps.

Re the power supply, have you watched and listened for the ballast trying to light the lamp? Did you measure for DC input voltage to the ballast at...
Forum: Rear Projection Units   10-02-2014, 07:29 PM
Replies: 4
Views: 440
Posted By ChuckF.
I don't have much faith in that TV repair shop...

I don't have much faith in that TV repair shop lamp test. These are arc lamps and one mode of failure is where the arc gap grows to the point where the ballast can no longer jump it.

Search the...
Forum: Rear Projection Units   09-30-2014, 07:35 PM
Replies: 4
Views: 383
Posted By ChuckF.
We've had good results at AVS repairing light...

We've had good results at AVS repairing light tunnels with silicone sealant/gasket compound. Go to a car parts shop like Advance Auto, etc, and get a tube of silicone gasket sealant in the highest...
Forum: Rear Projection Units   09-24-2014, 05:00 PM
Replies: 8
Views: 847
Posted By ChuckF.
Not true at all. Philips, the company that...

Not true at all. Philips, the company that invented that kind of lamp, says that by typical end-of-life, they will be half as bright as when new.

They don't always pop either, sometimes the arc...
Forum: Rear Projection Units   09-23-2014, 07:11 PM
Replies: 4
Views: 776
Posted By ChuckF.
The first rule of troubleshooting, -always do a...

The first rule of troubleshooting, -always do a physical inspection of the lamp.

When a DLP TV tries to start itself, the ballast will try three times, separated by around 20s. Each time the...
Forum: Rear Projection Units   09-17-2014, 05:44 PM
Replies: 2
Views: 357
Posted By ChuckF.
Step one is always: inspect the lamp.

Step one is always: inspect the lamp.
Forum: Rear Projection Units   09-05-2014, 10:43 PM
Replies: 6,639
Views: 803,103
Posted By ChuckF.
I've not seen a defect like that in a JVC D-ILA...

I've not seen a defect like that in a JVC D-ILA X-cube, but it's certainly possible. I have seen defects in the X-cube in Sony and Hitachi 3-LCD sets that I suspect are partial fractures of one of...
Forum: Rear Projection Units   09-01-2014, 09:04 PM
Replies: 6,639
Views: 803,103
Posted By ChuckF.
You said "The filter is perfect, but there is a...

You said "The filter is perfect, but there is a burn spot and general haziness INSIDE the first PBS cube."

What I have seen is that the haziness is in fact in the RSF. If you remove it by...
Forum: Rear Projection Units   08-24-2014, 08:43 PM
Replies: 241
Views: 69,216
Posted By ChuckF.
You're on the right track with the vacuum cleaner...

You're on the right track with the vacuum cleaner supplies, look at their generic HEPA filter material. You could also check HD/Lowes in the small gasoline tools department for replacement air...
Forum: Rear Projection Units   08-04-2014, 08:53 PM
Replies: 150
Views: 68,619
Posted By ChuckF.
New Rebuilder

There appears to be a new Sony light engine rebuilder on ebay based in Utah:
...
Forum: Rear Projection Units   07-02-2014, 08:12 PM
Replies: 9
Views: 632
Posted By ChuckF.
Do a bing search for 'KDF-50E2000 download...

Do a bing search for 'KDF-50E2000 download service manual'. That's the more common US model. In the hits there's a free one in the first page.

280VDC is correct.

If you are getting 280VDC and...
Forum: Rear Projection Units   07-01-2014, 08:12 PM
Replies: 9
Views: 632
Posted By ChuckF.
I don't recall the ballast input VDC number from...

I don't recall the ballast input VDC number from the SM, by the way you should have one.

When the tv processor calls for Lamp, the ballast sends ~3-5KVAC to the lamp. A sign that this voltage is...
Showing results 1 to 25 of 529

 
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