Question about ASK Proxima Proxima DP2000X Multimedia Projector

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DP2000x - no power

Anywhere else to look besides the blue capacitor? I have a no power condition on my unit as well, but the cap you mentioned looks good,and is blue in colour.

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It might be dried out, and you cannot tell from looking at it. but there are transistors on there that go bad.

Posted on Nov 10, 2009

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LG 60FG30FC-UA. Suspect p/s board EAY41391501 rev B for no screen display.


Sounds like power board. You cannot tell if capacitors are bad just by looking An ESR meter is required to test them

May 27, 2016 | Televison & Video

1 Answer

My JVC TV wont turn on, the blue LD at the front of the TV comes on, when i press the power button the blue LED goes off and i hear a click on the TV but it wont turn on.


Look at the power supply board, look for capacitors ( look like black or brown cans) that have their silver tops bulging. There is a cross on the top designed to open in a failure so the capacitor doesn't pop. Even if the top is still closed, the slightest bulge indicates a failure. Unsolder all bulging capacitors and replace with same spec. For instance, in a bad Samsung there are 4 1000mf 25v 105C rated caps that always go bad, same symptoms. The caps are about $3-4/pc in USA.

Dec 04, 2014 | JVC LT-40X667 40 in. LCD Television

2 Answers

The ac adaptor is on and the blue light is on then i turn on the tv and it hesitates and the power goes out on the adaptor si i unplug and replug several times then it will work


Hi slkoren,
This is an indication of out-of-regulation condition in the power supply board. This was caused by leaky/dried filter electrolytic capacitor in that board. It will dropped the voltage and will disable the unit. On the first stage of symptoms, warm-up will make itself stable after powering on and off but it will get worst, times will come that the unit will not even power up at all.
Leaky electrolytic capacitor has a physical indication of fault like bulged/dome at the top and can be easily identify. See sample picture.
jdvillanueva_66.jpg

Dried electrolytic capacitor has no physical indication of fault, you must have a capacitor checker to determine its condition.
You may also replaced the entire power supply board if you can't troubleshoot it yourself. Click this LINK. LINK2
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Jun 22, 2011 | Protron PLTV-32 Television

1 Answer

PLTV3250 have a blue screen. It won't power on


Hello

Probably a power supply - if you open the back of the tv (if you have electronic experience) find the power supply look for bulged capacitors and replace them.

power supply unit problem you have bad caps (capacitors) change all the caps or at least the ones that are leaking how do you see if they bad usually they are bold on the top instead of flat. change it with a higher voltage but the same UF. if it shows 10V-1000uf you change to 16V-1000uf or if it fits a 25V-1000uf.

THANK YOU FOR VISITING FIXYA

Mar 03, 2011 | Protron PLTV3250 32 in. LCD Television

1 Answer

Where is the low pressure port for 93 jeep grand cherokee air conditioning unit?


Under your hood look for an aluminum looking line 1/4 inch thick trace it until the find a Blue Cap with the letter L, for Low Pressure, the Blue Cap with H is high pressure.

Jul 26, 2010 | 1993 Jeep Grand Cherokee

4 Answers

DCAC40A4 power converter failure


I think this is a dipped .33 uf or 3300pf 250v cap. I thought tantalum, but none are available at 250v, so I think it is ceramic.

http://www.badcaps.net/ has a forum and a section for computer displays. There is a recent post on a viewsonic there.

digikey.com has low cost/order shipping fees, mouser.com has parts too.
tom

Nov 19, 2009 | ViewSonic Optiquest Q9b 19" Flat Panel LCD...

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Directv DVR R15-500 problem


I had a similar problem the orange record light was on and the unit could not be turned on. I didn't want to replace the unit since all recording would be gone. After some googling I found that the problem was related to the power supply. I found three capacitors with swollen tops 2 1000uf@10V and 1 1200uf@10v. I replaced them and everything works again.

Dec 05, 2008 | Televison & Video

2 Answers

IBM LCD Monitor Model # 6734-ABO


Adam,

Well, to look for a bad capacitors you need to tested with a ESR meter. But if you are lucky sometime you can spotted just by look at the top of a caps for stress mark (like it going to burst out). The caps look like a tiny battery, other look like a blue button with 2 pins. Sometime it not the caps problems...it's beyond repaired. Anyways, good lucks!

Aug 07, 2008 | IBM ThinkVision L170 17" LCD Monitor

2 Answers

Can´t power on my projector


Some Proxima projectors had power supply problems, which resulted in either a dead unit, or, in the early stages of failure, might take a while to come on (maybe even 10 minutes or so). At the college where I'm employed, we've had 4 or 5 of the DP2000X models with this problem. The cause was a bad electrolytic capacitor in the power supply, namely a 47MFD/25volt unit, in the primary side of the circuit. I have pics of this circuit board. Another Proxima model had a shorted ceramic disc capacitor, and a blown fuse. If you have someone who is technically savvy, they could check your model for such a problem

Sep 12, 2007 | InFocus ASK-Proxima C170 Projector,...

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