CurtPalme.com Home Theater Forum

HK-Steve · Posted: Mon Oct 01, 2012 5:16 pm Post subject: Marquee Geometry Problem

Hi Guy's,
turned my 9500 ON tonight, and have an issue with geometry.

The top of the test pattern and image, is tilted inwards at the top. see pic.

HDM or Vertical Board?????

Cheers

HK-Steve · Posted: Mon Oct 01, 2012 5:17 pm Post subject:

The bottom of the pattern is straight, just does not look like it in the pic.

Cheers

macgyver655 · Joined: 22 Aug 2007 Posts: 8508

Why would you not consider convergence board? Or DPB??

HK-Steve · Posted: Mon Oct 01, 2012 5:50 pm Post subject:

True, also possible for both.

Just trying to work out where to start,
not in the mood today to start swapping boards, that will happen tomorrow.

Cheers

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

Helo

Copy that to a spare memory and reset the spare memory, see if it straightens out. It is all three colors, so maybe the HDM is not processing the H Key properly? HDM or control or DPB.

.

HK-Steve · Posted: Mon Oct 01, 2012 6:10 pm Post subject:

Thanks Tim,
just tried your suggestion, copied to new memory, same problem, also other memory blocks also the same problem.
Yes, it is all three colors. just at the top only.

Next ad break, will pull the CLM, reseat the DPB.
More to come.

Cheers

HK-Steve · Posted: Mon Oct 01, 2012 6:12 pm Post subject:

the chips have been de-socketed on the DPB, and directly soldered.

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Down load your settings with marquee loader/Control program. Initialize the set. Now do a quick convergence and see if its there, if not
then re load the old settings and see what happens.

Nashou

HK-Steve · Posted: Mon Oct 01, 2012 6:23 pm Post subject:

Tim,
I would have to pull the jumper off the convergence board, correct,
from memory, if I pull the connector off does that not damage the board??

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

You can run the set with no convergence coils connected no problem.

Athanasios

HK-Steve · Posted: Mon Oct 01, 2012 6:35 pm Post subject:

Just pulled the CLM, re-seated the DPB.

No change to the problem.

Next ad break, convergence unplug.

Cheers
Guys

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

Hey Steve

It is either going to be distortion of a waveform driving the convergence, or a waveform driving width modulation.

.

HK-Steve · Posted: Mon Oct 01, 2012 6:48 pm Post subject:

Pulled the green convergence coil off the board, same problem.

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

HK-Steve · Posted: Mon Oct 01, 2012 7:00 pm Post subject:

Running H Key.
the vertical lines, move a little at the top to the right, same direction as the problem,
but the bottom moves the full left and right.

Does that make sense?

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

sounds like something is wrong with the keystone control from your description.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

key and pin are controlled by the same circuit i think try pin and se what that does.

nashou

HK-Steve · Posted: Mon Oct 01, 2012 7:25 pm Post subject:

Pin has exactly the same problem.

Just tried to change out to my spare HDM, but the HV did not turn ON.

So looks like my spare HDM it is busted, dam........

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Steve those signals are generated on the VDM. So it might not be the HDM.