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dokworm
Joined: 26 Oct 2010
Posts: 31
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| Posted: Sat Apr 19, 2014 1:06 pm Post subject: FD Error on NEC XG |
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G'day all, My XG turns on, then after a few seconds (just about when the tubes should light up) it clicks off with an audible 'click' and I get an FD error flashing on the back.
Any idea where to start?
I grabbed a HV test probe, and hooked it up to my multimeter, and tried to check the HV coming from the block, but am not getting a reading there. Not sure if the probe is working though.
Any help appreciated, tried the usual board re-seating, but no go.
Was working fine up to this point, except for a occasional 'shimmer' on the red-tube image.
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gjaky
Joined: 05 Jun 2010
Posts: 2802
Location: Budapest, Hungary
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| Posted: Sat Apr 19, 2014 2:33 pm Post subject: |
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FD error code means HV-down-Vertical out PCB, So I'd sniff around the V-DEF board first, IMO HV usually don't go bad from one day to the other, without any sign.
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projectors in the past : NEC 6-9PG xtra, Electrohome Marquee 6-7500, NEC XG 1351 LC ( with super modified Electrohome VNB neckboard !!!)
current: VDC Marquee 9500LC
The MOD: VNB-DB, VIM-DB
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sat Apr 19, 2014 4:06 pm Post subject: |
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See if you have a cracked tube. that will shut down the HV very quickly.
I'd say you have an issue with a cracked tube/bad V board, or the HV board or H deflection board is bad.
the V board by itself won't cause an Fd error, and yes, something can fail to cause the HV to shut down without warning.
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dokworm
Joined: 26 Oct 2010
Posts: 31
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| Posted: Sat Apr 19, 2014 10:53 pm Post subject: |
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If it was a cracked tube, would removing the anode leads mean that the projector would stay on without shutting down?
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sat Apr 19, 2014 11:29 pm Post subject: |
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Yes. you can try that. Pry up on the rubber boot, don't pull on the red wire, or you'll rip it out of the connector.
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CasetheCorvetteman
Joined: 09 Nov 2008
Posts: 6326
Location: Australia
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| Posted: Sun Apr 20, 2014 1:30 am Post subject: |
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The shimmer on the red tube is quite likely dirty yoke connectors.
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Barco Cine 9, ,Sony VPL570ES 4K SXRD, 135" OZ Theatre Majestic 16:9 screen, Denon X6700in preamp mode, 2x 7ch Tonewinner amps, 2x Tonewinner 15" subs, 2x 10" subs, 7.2.6...
RUNCO DTV991 LC ( NEC XG 852 LC ) 100" 4:3 screen, H/K AVR 7.1...
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dokworm
Joined: 26 Oct 2010
Posts: 31
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| Posted: Sun Apr 20, 2014 7:06 am Post subject: |
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I'll pull all the anode leads then and see wether it still turns off.
I'll give the yoke connectors a clean whilst I am in there. I haven't really played with the XG much, I used to know my way around my old PG in the dark, but the XG is a lot more complex. It has been converted to LC as well, so I'm really missing it!
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dokworm
Joined: 26 Oct 2010
Posts: 31
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| Posted: Sun May 11, 2014 11:56 pm Post subject: |
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Okay, even with all the anode leads disconnected, I still get the exact same problem.
I tried pulling the ribbon cable from the F-Drive and still get the same problem.
So it is looking like the HV board I guess. Anyone have one for sale?
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dokworm
Joined: 26 Oct 2010
Posts: 31
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| Posted: Tue Jun 17, 2014 1:10 pm Post subject: |
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The boards arrived today Curt, so I will be trying to fit them on the weekend. Fingers crossed it solves the problem.
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