Question about Projection Televisions

1 Answer

Power supply problem with Phillips 46pp8621/79

Hi guys,

I am looking for a solution or circuit diagrams for my Phillips 46pp8621/79 TV.

I currently believe there isn't any HV power coming out of the power supply or there is a short on the driver board bringing the power supply down. I haven't done much testing as yet as it is hard without knowing exactly what voltages I am looking for and where.

Would anybody have the diagrams available to download??

Thanks in advance.

Posted by on

  • greglamont May 12, 2008

    Thanks for the info. I actually found the Service Manual. I have tested the Power Supply and it seems ok. Possibly the HV Module?? Are the any suggestion on how this is tested - aside from carefully?? I this a common fault??

    There is a constant clicking and like a high pitched alarm sound coming from the unit, but I can't yet identify which component.

    Thanks again in advance.

    Greg
    Australia

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Projection T... Master
  • 8,617 Answers

Your chassis is the DPTV 325 you can get the factory training manual for your set emailed to you at the following link. It cost 12.99 but comes with unlimited tech support if you need it. The manual is listed as DTV300 series training manual its has the trouble shooting proceedures and diagrams that you would need. heres the link.
http://servicemanuals.vstore.ca/

Posted on May 11, 2008

  • Sonny Berry
    Sonny Berry May 12, 2008

    Usually that symptom is related to the HV generator (flyback) being faulty

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Phillips/Mag Projection TV-9P5544C102 no pic/sound /pwr light on


John, my thoughts is something in the main power supply. I don't know what an opto chip is but I've heard of Optocupler IC's.
May be a good idea to give a call to some local TV Repair Shops especially ones that work on Philip's and see if you can speak with a tech to see what their thoughts are on what the problem is and what a repair cost may be.
The issue is one of hauling it to the TV shop or having them come out to you.
Blessings,
A/V Media Guy

Nov 20, 2009 | Projection Televisions

1 Answer

When we try to turn on the tv, it chirps and shuts off


Power supply (switched mode) is shutting down due to either a fault within the power supply itself, or a problem in the line stage (EHT) and the current protection circuit is shutting down to prevent further damage. Flyback diode often fails shutting the power supply down.

A circuit diagram is required in order to repair this.

Sep 12, 2009 | RCA HD52W59 HDTV Projection Television

1 Answer

Phillips 55pl9524/37


Hi

this amber color means defective power oscillations Circuit! need to diagnose at the regulated power supply. and or at the HOT area.,

Thanks!

Dec 27, 2008 | Philips 55PL9524 55" Rear Projection...

1 Answer

04TA0691 power supply


Hi
I have a .pdf of the diagram - can you let me know your email so I can send it - it's too big to attach.
Glyn

Oct 22, 2008 | JVC AV-56WP74 56" Rear Projection...

1 Answer

Phillips magnavox big srceen tv


HELLO MY FRIEND, THERE A FEW THINGS THAT YOU HAVE TO CHECK ON THE HORIZONTAL CKT(CIRCUIT) AND THE SECONDARY POWER SUPPLY, BUT IF YOU DON'T HAVE THE SKILLS TO DO THIS YOU'LL NEED TO CALL THE REPAIRMAN
GOOD LUCK


CAYPIANAN@YAHOO.COM

Oct 12, 2008 | Projection Televisions

1 Answer

I need help tv plasma phillips


Hello gruponapa,

This problem is linked to a power supply issue. The SSB is part of the power supply chain and will cause system failure if the board is defective. I have seen to many of these type of modular power supply boards fail. The shutdown circuit is detecting excessive voltage, and in the process of turning off the set it may have blown something else. I am begining to suspect a design flaw, which happens from time to time. I would suggest having a qualified TV repair person take a look at the TV and work on it.

I hope this helps,

Thank you,

Shuttle83

Jul 27, 2008 | Sony KP-53HS30 53" Rear Projection...

2 Answers

Phillips Magnovox


Hi,

Its a power supply issue the only solution is to get it repaired.Possible power outage.Repair charges would be around $400.

Goodluck,
Please don't forget to rate the solution

Apr 25, 2008 | Philips 9P5034C 50" Rear Projection...

3 Answers

Phillips 37FD9944/01S Plasma TV - Power Supply


dont waiste your money problem main or logic board or if shure power supply go radio shack and get one with specifications match voltage,ampers,and polarity

Mar 30, 2008 | Philips 60PP9352 60" Rear Projection...

3 Answers

"TV Not Turning On"


Hey im not one of the techy guys with tv's im a computer guy.
but i have that same pioneer set you have the 510-HD and i had a similar if not the same problem.
my ex-father in law is a tv repair guy he told me to resolder the power board connections that looked corroded. i did just that and problem solved. hope this helps you out
FYI make sure you use rosin core solder not acid core good luck

Nov 27, 2007 | Pioneer PRO-510HD 53" Rear Projection...

2 Answers

Television Not Powering Up Intermittently


Hi Check the standby power supplies, then the run supplies, then the h-driver circuit, then the H.O.T and flyback circuit. And in general look for bad transistors, diodes, capacitors, resistors, faulty solder connections and etc. BE ADVICE!!! if you don't have any repair experience and electronics knowledge leave it. Take it to an experienced tech or a service shop. Good luck

Mar 21, 2006 | Zenith D52WLCD 52" Rear Projection...

Not finding what you are looking for?
Projection Televisions Logo

Related Topics:

192 people viewed this question

Ask a Question

Usually answered in minutes!

Top Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

matt martin
matt martin

Level 3 Expert

1191 Answers

yadayada
yadayada

Level 3 Expert

61249 Answers

Are you a Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...