CurtPalme.com Home Theater Forum

Audio_Geek_00 · Joined: 07 Aug 2014 Posts: 82 Location: SF Bay Area

Went to turn on the projector and Sad

I can hear a relay click twice in quick succession when pushing the power on button on the remote. At first I thought I hadn't held the button down long enough so I tried several more times and nothing. I then tried the power on button on the pj thinking the batteries in the remote were the issue and got the same result.
In between the two relay clicks the fans and the power LED lights come on then nothing after the second click. Is there a power relay that could go bad?
TIA
Tim

**Curt Palme** · Posted: Thu Jun 29, 2017 8:20 pm Post subject:

No, there is no such thing as a 'power relay' in the 1252. Under the cover is an 2 digit display that shows an error code. If it's ceiling mounted, you'll be reading it upside down. What does that LED display indicate? (location is shown on the main site in the tech tips area of the 12XX series)

Audio_Geek_00 · Joined: 07 Aug 2014 Posts: 82 Location: SF Bay Area

Curt,
I'll pull the cover tonight when I get home and check the display. Is the error code continuously displayed?
Thanks,
Tim

Audio_Geek_00 · Joined: 07 Aug 2014 Posts: 82 Location: SF Bay Area

I should have did what you said before I asked the question. I know where to look and where the error codes are.
Thanks.
Tim

**Curt Palme** · Posted: Fri Jun 30, 2017 12:50 am Post subject:

Yes, once the set has powered off the display should stay on. Also check to see that the fans do spin up momentarily under the cover

Audio_Geek_00 · Joined: 07 Aug 2014 Posts: 82 Location: SF Bay Area

Curt,
The error code is 13. Referring to the error code chart there is a Y for FAN stop, (H stop) 100V down and HV-over.
Does that mean a fan is out which affects cooling of HV power supply?
Best,
Tim

**Curt Palme** · Posted: Fri Jun 30, 2017 7:56 pm Post subject:

Possible, although it's more likely that the PA board or H board has failed. Still, check all 7 (?) fans in the set to see if they spin. There are two on the back of the power supply that you can't see, you'll have to pull out the power supply to check those. Do this with the set on a table, as it's a PITA to remove the power supply while it's on the ceiling.

Audio_Geek_00 · Joined: 07 Aug 2014 Posts: 82 Location: SF Bay Area

Thanks for the info Curt. My thought after babying the pj along for the last 10 years is if it comes off the ceiling one more time it won't be going back up. Where is the PA board and H board located? What is their function? I don't see anything in the diagrams of the pj layout referring to those 2 boards.
TIA,
Tim

**Curt Palme** · Posted: Sat Jul 01, 2017 12:12 am Post subject:

The H board is the big flat one under the top cover that is over top of the green and blue tubes (right under the top cover). The PA board is the one on top of the power supply under the lenses.

Audio_Geek_00 · Joined: 07 Aug 2014 Posts: 82 Location: SF Bay Area

**Curt Palme** · Posted: Sat Jul 01, 2017 2:05 pm Post subject:

I should still have a working H board in stock. Not worth sending yours up, too expensive, and I don't have a 12XX projector any more to repair them.

Audio_Geek_00 · Joined: 07 Aug 2014 Posts: 82 Location: SF Bay Area

gregstv · Joined: 27 Aug 2007 Posts: 628 Location: Australia

I have stripped one of these. I have all boards if Curt can't help you. The biggest problem will be the cost of shipping from Australia.

**Curt Palme** · Posted: Tue Jul 11, 2017 4:16 pm Post subject:

Yes, I do have one. Did you send me an email to curtpalme at shaw.ca? If so, I haven't gone through my emails recently to follow up. Will try to get to all of them by the end of the week.

Audio_Geek_00 · Joined: 07 Aug 2014 Posts: 82 Location: SF Bay Area