Question about Pioneer PRO-99 TV

2 Answers

X volt regulator

I have the same problem with my unit. The on button momentarily turns green and then to red. I have checked the fuse and it is still in tack. Kelvin mentioned a "X Volt Regulator" as a possible source of the problem. I am trying to fix the TV myself and cannot find that part. What is the proper name and or part number.
Thanks

Posted by Speargunner on

  • patrick77w Apr 19, 2009

    Same Problem!!!!!!!!!!

×

Ad

2 Answers

Vista Electronics

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,694 Answers

1) Unplug wire harnesses = pull chassis ( requires 2 chassis bolt
removal)
2) Dis-mount Convergence / power supply board = the one with
large heatsink
3) Locate 5 volt regulators mounted to heatsink
4) Remove old solder from pins of all four regulators =
Re-solder + solder any / all bad conncts on board....
5) Replace bad 4 amp fuse hidden in power supply area...
6) Reassemble

Posted on Nov 15, 2007

Ad

Anonymous

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Has anybody tried this?...I have a Pro 99 with the same problem...I'd like to know if this fixed it...Thanks,Gary

Posted on May 14, 2008

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I believe my tv was involved in a power surge. red/green blinks


Hello:
U just may of blown fuses on the power supply of the television if you are sure it was a surge. If u can open the unit check all fuses on the power supply for open coniditions. If the future is a good Ideal to use a surge proctector as this will protect your equipment. Make sure power is off and remove AC power to check fuses. Sometimes just removing AC power for a least 2mins will reset the unit.

Jul 02, 2010 | Panasonic PT-50LCX64 50" Rear Projection...

1 Answer

Green light turns on momentarily, then nothing from unit


make sure batteries are tight in unit ,making good connection there are many internal things that could be wrong no rotation could be bad drive motor broken belt bad pcb robotoolz now owned by bosch who owns cst-berger discontinued robotoolz lasers there is a guy who will give free estimate on repair A.P. Service & supplies 610-944 8030

May 28, 2010 | Robotoolz SelfLeveling Laser Level with...

1 Answer

Power button flashes red. TV comes on momentarily


this is a inverter board defective. please change-it

Oct 31, 2009 | Panasonic TH37PX60 37 in. Plasma...

1 Answer

Battery light green, then flashes four times red, repeats


remove the battery
clean the connecting ends of ur laptop & battery,
plug it back in & then start it...

Aug 27, 2009 | Dell Latitude D600 Notebook

1 Answer

Does not power on. Pressing remote on unit on switch results in the power led momentarily turning green then back to red.


the problem is located within the power supply printed circuit board. best bet to replace whole PCB .

Jul 12, 2009 | Toshiba SD-2800 DVD Player

1 Answer

TV switches its self off when I turn on.


Protection circuits usually cut in when you have power supply issues and too much current. U might want to start checking out your power supply for bad components.

Apr 09, 2017 | Televison & Video

1 Answer

481 doesn't work


did that to mine. Bat went dead and went to jump the car. What happends is when you attach the jumper cables, it surges the power to the amp. This gets worse with caps. I would say you blew the relay in the amp and needs to be replaced. It is worth fixin but youll have to send it off or take it to a repair shop to have the new relay put in

Oct 05, 2008 | Nitro BMW-481 Car Audio Amplifier

2 Answers

Reset Button


There is no reset button on most of these units. If nothing is running at all when a call from cooling from the thermostat is made your problem could be a tripped or breaker in the off position. When you turn the thermostat to cool have someone listen for a click at the unit. If no click is heard it may be in the low voltage circuit that your problem is. If a click is heard which is the main contactor pulling in to run then your problem may be in the high voltage power supply. If you have a fused disconnect check the fuses. They should be of the time delay type (slow blow) and sized according to the ampacity on the unit name plate. Also check the main breaker in the house power panel.

May 22, 2008 | Intertherm P3RA-030K Air Conditioner

1 Answer

Pioneer Elite Pro-99 Power Problem


If you're NOT still under warranty you should at least open the TV and look for a blown fuse near where the power cable enters the set. A lot of times you can buy replacement fuses at a local electronic or hardware store and they're easy to replace. Check the fuse. If it is blown, it will be obvious and make sure that the set is unplugged before replacing it. If it blows again, or if it is not blown, your problem is probably in the 'X' volt regulator and you will need professional help with the repairs. You can also check the board where the components are mounted and resoled any that look bad. Brief power outages may cause the TV to turn off on its own. If you are using a surge protector, try connecting the set directly to the wall outlet. In your case it could caused by a blown fuse, a leaky diodes or a bad solder joint at the horizontal drive transformer. All can be replaced at a local electronic or hardware store and they're easy to replace If this does not correct the problem, you may need to have your TV serviced. good luck!

Jan 19, 2006 | Pioneer PRO-99 TV

Not finding what you are looking for?
Televison & Video Logo

313 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pioneer Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76280 Answers

Marvin
Marvin

Level 3 Expert

85223 Answers

Ekse

Level 3 Expert

13434 Answers

Are you a Pioneer Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...