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ViewSonic PJD5112 ballast - ViewSonic PJD5112 Projector

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Viewsonic PJ558D shuts off after a few seconds


Sounds like the ballast board for the lamp stopped working.

Nov 19, 2014 | ViewSonic PJ558D DLP Projector

1 Answer

Power supply


it seems that there ate 3 reasons for it
1,the lamp is failing
2,the lamp ballast is failing
3,the motherboard is failing
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have a nice day!
Jerry,Lampdeng Limited

Jan 29, 2014 | ViewSonic PJD6251 Projector

1 Answer

Viewsonic pjd5112 won't turn on


1) test the power cord for open or faulty use the multimer 2) test any colder joint in the PWB 3) test the fuse +power supply inside repair or replace.

Merry Christmas

Dec 19, 2013 | ViewSonic PJD5112 Projector

1 Answer

Lamp does not stay on


You need to find out if it is because of the system control turning off the ballast lamp driver or the fact that the ballast or lamp is not defective measure the connection volts from the mother board to the ballast (NOT THE 350-400 VOLTS FROM THE MAIN SUPPLY RAIL) this will then confirm it may be an over sensitive temperature sensor.

Apr 16, 2013 | ViewSonic PJ860 Multimedia Projector

1 Answer

I have a View Sonic pjd5112 projector that will not turn on. When I press the power switch, I hear a small click. I hear another one after about thirty seconds or so. The fan does not come on.


I too have the same problem. I am going to email 800 schools on my database and tell them to steer clear of this brand to avoid the same issues.

Sep 21, 2011 | ViewSonic PJD5112 Projector

1 Answer

The red lights on the control pannel indicate that there is a problem with ventilation (the fan or whatever is called). Can I fix it? The PJD5112 lamp turns on just for seconds and then of and red signal...


The projector switches off itself due to following problems. Make sure that lamp is not used for more than its life expectancy as mentioned by the manufacturer.The projector gets over heated due to two problems. 1) The dust filters are clogged. Clean the filters. 2) The lamp life is almost over or used lamp is in use. Normally each lamp is used about 2000 to 3000 hours depending upon the manufacturer. In such case replace with new lamp. There are many fans to control the temperature inside. Some are blower fans. Some are exhaust fans. You will have to open the projector & check which one of them is not functioning. Replace the one which is not functioning. It is also likely that there may be some failure of components.

Aug 07, 2011 | ViewSonic PJD5112 Projector

1 Answer

It takes for ever to warm up and screen going on and off till is warm. If i keep it on all the time there is no problems. But switching it on in the morning takes about 20 min to get normal. When I bought...


this sounds like low DC voltage in the backlight ballast or possibly faulty backlights. Check to see if the screen glows slightly in a dark room when first turned on from cold and the screen is still blank, if there is no glow then its most likely a ballast or power supply issue. hope this helps

Sep 30, 2009 | ViewSonic VX910 19" LCD Monitor

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