CurtPalme.com Home Theater Forum

dblack · Joined: 08 Oct 2010 Posts: 4

Hi,

My 701s has been working fine for years.. tonight though, I decided to move it forward a few inches. Once moved, I powered it up to check left/right alignment before bolting tight. So far so good.. had a solid blue screen to align with. After tightening down, I ran upstairs for a screwdriver (no more than 3 min), came back and no screen display. Thinking it went to sleep I turned on the dvd, powered off/on the projector and still nothing. Also no on screen help/adjustments menu is displayed either when using the control buttons on the projector. Sad

The fans come on.. just no CRTs light up. Also noted.. all of the green LED's on the front are on followed by I believe the 'hold down EHT" and "COINC" lights lit up.

Any advise or info is greatly appreciated.
Thanks / Doug

**Curt Palme** · Posted: Fri Oct 08, 2010 1:52 pm Post subject:

The main site is your friend:

http://www.curtpalme.com/Barco701_Layout3.shtm

THe set has gone into HV shutdown mode. That means most likely your HV quadrupler is bad, and right now they are impossible to find. The quadrupler is specific to the 70X series, no other one will fit. It could also be the SMPS chassis that the HV quadrupler is bolted to, or the HV splitter.

Without swapping parts or testing the SMPS tray, there's no way of telling which part is bad. If you want to send me the SMPS and HV quadrupler, I can test them here for you.

dblack · Joined: 08 Oct 2010 Posts: 4

Great.. parts impossible to find!

With swapping / testing.. what sort of expense am I to expect? Just debating whether this is worth it.

Thanks / Doug

dblack · Joined: 08 Oct 2010 Posts: 4

Looking at the barco layout of the boards, which parts should I pull and ship for analysis? What is the cost I should expect?

Thanks Doug

**Curt Palme** · Posted: Tue Mar 31, 2015 12:30 am Post subject:

Pull out the HV quadrupler and the HV splitter and send them to me for testing. One or the other is most likely bad, and it's a flat rate of $275 to replace the bad one, send the other good part, and that includes shipping from me to you.

Let me know, or email me at curtpalme at shaw.ca

thanks!

dblack · Joined: 08 Oct 2010 Posts: 4

Ok.. about to pull the splitter and I see one wire not attached. A thin white wire. Could that be a problem?
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**Curt Palme** · Posted: Sat Apr 18, 2015 3:22 am Post subject:

YES, that's the HV regulation wire, and nasty things can happen to the set if that's not connected (like snapping tube necks, or shorting them out).

that wire plugs into the power supply board, back from the HV quadrupler. Don't try and turn the set on without that 2 pin wire connected to the board. See if it fires up then.

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6319 Location: Australia