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StugVI
Joined: 18 Jul 2014
Posts: 1
Location: MI
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| Posted: Fri Jul 18, 2014 3:13 am Post subject: Marquee 8500 |
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I picked up a 8500 , it starts and I can hear the fans kick on , none of the diagnostic lights show an error
however there is no light emitted form the lenses. Need to know some basic diagnostic steps
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Fri Jul 18, 2014 3:31 am Post subject: |
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Which of the error lights are lit up?
The common ones are the h and v fail
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crt king of black
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the big E
Joined: 20 Apr 2013
Posts: 1928
Location: speedwell Tn.
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| Posted: Fri Jul 18, 2014 3:32 am Post subject: |
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Sratch my previous post
Does the power on led light up?
Mine did like this back of this and it was the clm(control module)costed me 200 to fix
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crt king of black
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tschaeikaei
Joined: 08 Apr 2013
Posts: 490
Location: Germany/Saarland
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| Posted: Sun Jul 20, 2014 10:45 am Post subject: |
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You did press the power button on the remote for about 2 seconds?
The projector does only run in standby mode, i guess.
If the power button doesn't help, make a short video with sound.
Then, they will tell you more.
Regards, Julian
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Marquee 9500U edgeblend P43 | NEC 9PG
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Sun Jul 20, 2014 5:00 pm Post subject: Re: Marquee 8500 |
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| StugVI wrote: | I picked up a 8500 , it starts and I can hear the fans kick on , none of the diagnostic lights show an error
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look through the front grill also, there is another set of LED's on the front on the power supply that the power chord plugs into.
If none of those are lit either, you can try pulling out the HDM, comes straight up, and cleaning the contacts between the main board and daughter board as this fault sometimes won't show and error light. Clean with De-oxit and Be careful you don't break off the plastic screw when you re-assemble. Refer to these 2 guides for what where everything is , it's fairly simple like a desktop PC
http://www.curtpalme.com/ElectrohomeMarquee_Layout1.shtm
http://www.curtpalme.com/Marquee_Teardown1.shtm
If you still don't hear a high-voltage crackle after power up and there's no light, then the High Voltage power supply is probably bad , a common failure
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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: Sun Jul 20, 2014 6:07 pm Post subject: |
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Reseat the HDM and the daughter board on the HDM.
Check the P14 filament voltage to see if it's over 6.5 volts. In some cases, the tubes could all be toast if the LVPS is bad and the set was left on for many hours. I've seen a few of those before. Likely the tubes are still OK, and you have a HVPS issue.
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