Question about Televison & Video

1 Answer

Startup Problem with my 42pf7321d/37 Phillips plasma TV

Every time I turn on my TV in the morning when the TV itself is cold, I see the LED Green ON (on the left bottom corner side), and I hear a relay click, and seconds later I hear sound (with no video) a second later I hear a click again on the relay, sound goes off, still no video, and the LED stays ON, nothing else happens then.
I try to turn the tv off but no relay click is heard, and LED is OFF. sometiems the TV does not respond any more but still I have to try to turn the LED off
to get it to work, I have to unplug the power cord for a couple of seconds.
when I plug the power cord again. I can hear the relay click again, the LED ON for seconds and then off again,
then I turn th TV ON relay click is heard LED ON and sonund begins, but the video takes like 1 or 2 minutes to come but in the process picture appears and desappears several times until it stabilizes, and TV wrks perfectly.
when the TV is warm I turn it off and on again the startup is normal; sound and video appears immediately as it should be always.
I took the cover out and I just clean dust the tV had, but all looks normal.
I know a liittle bit of electronics but not sure what to or how to check with my Voltmeter . Heelp!!!

Posted by on

  • 3 more comments 
  • naqui Nov 07, 2008

    Thanks for answering

    I purchased the TV on 2006.

    It is standing on its base on a small table with so much air to refresh itself.

    The problem just appeared a couple of weeks ago.



    Thanks again

  • dirtroadmike Nov 29, 2008

    Startup problem when cold. Turn on - loud relay click, moments later a quieter click. Have to unplug and plug several times then finally momentary sound and click again. One more unplug and it does the loud click and stays on. Each unplug and retry results in the same loud click followed shortly by quieter click. Then on/off produces no clicks. Have tried leaving unplugged overnight but same results. My gut tells me there is a replaceable relay that is causing the problem. My set is on table brackets with 6-8" open space to wall. My kingdom for a relay number and a place to get it!

  • naqui Dec 02, 2008

    The error that appears on the TV error report is 04 and the defective module that appears is I2C 4_blocked Protection +3Hz Blinking
    Watching ther table in the service manual reads:

    Extra Info
    • Error 4 (I2C bus 4 blocked). When this error occurs, the
    TV will go to protection and the front LED will blink at 3 Hz.
    Now you can partially restart the TV via the SDM shortcut
    pins on the SSB. Depending on the software version it is
    possible that no further diagnose (error code read-out) is
    possible. With the knowledge that only errors 1, 2, 4, and
    63 result in a 3 Hz blinking LED, the range of possible
    defects is limited.

    It is a problem in the POWER supply OR IN tHE ssb BOARD

  • dirtroadmike Dec 05, 2008

    Some more information... I recently changed entertainment centers. The one I had was closed in underneath and collected heat from the dish box being on 24/7 thanks to thier system. apperently it created enough heat to keep the tv above it "warm". When I changed to an open table for everything no heat is collected. At the same time the weather started turning colder. That is when my problem started. Today, just for grins, I tried positioning a space heater so it "warmed" the tv. Guess what!? It worked! The tv started up on the first try. I have also oberserved that the colder it is the more on/off trys it takes before the unit stays on. This is a fact! Now if I only knew what component is heat sensitive. The unit is a couple of years old at most. It was packed new in the box when I got it From Office Depot (not a demo that ran forever in the store).

  • naqui Dec 29, 2008

    I am now 99.9 % sure that the SSB is the board with problem, it should be replaced because it is almost impossible to repair it

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 93 Answers

I need to know how long do you have the tv?In the other word,approx. how many hours you have put into it?
Secondly,did you wall mounted the tv or setting it close the the area which there is not much room for the back of your tv to breath?
solutiondoct

Posted on Nov 06, 2008

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

When I power on my 42PF7321D/37 Philips Plasma TV the green LED comes on then turne into a flashing red LED. Flashes 4 times then space then four times. TV will not turn on.


Hello,

Ur power supply board is dead, u know basic electronics’ and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get ur tv power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.


Hope this helpout........


Aug 03, 2010 | Philips 42PF7321 42 in. Plasma HDTV

1 Answer

Plasma tv in protect mode


Hi,

One of the PCB's inside has an incorrect voltage/short or dry joint, all TV now days have a diagnostic startup mode which checks all the boards, one of yours threw up a problem so the TV put itself into Protect Mode so that it doesn't do anymore damage.

Get it checked out by an engineer.

Thanks

Oct 01, 2009 | Televison & Video

1 Answer

No power to my Phillips 42 inch Plasma 42pf7321d/37, just a red blinking light


Most likely it going to be a power supply related problem. The red blinking light is a code for a TV tech to diagnose the problem on the power supply board itself or the board that regulates the power for the screen. Some manufactures call it a Backlight Inverter Board. A TV repair shop should be able to look at it for you and tell you which board is bad.
Replacement boards can be found at a good price at Shopjimmy.com

Sep 05, 2009 | Philips 42PF7320A 42 in. Plasma HDTV

1 Answer

No picture on my philips 42PF7321D/37


Bad caps in the power supply must be replaced .

Jul 21, 2009 | Philips 42PF7320A 42 in. Plasma HDTV

1 Answer

TV does not turn on, blinking red LED


Problem is a bad audio IC esp if your are reciving 11 blink code
if it is a 5 blink code replace Crystal 1h00 On Ssb new part number is 24225430 1397

Jan 12, 2009 | Philips 42PF7321 42 in. Plasma HDTV

1 Answer

Phillips ssb


It is pretty much a plug and play. It is more time consuming than any degree of difficulty.
You must make a strong mental note of where each screw goes.
Simply disconnect the Molex connectors and the screws on the Signal Board; you're pretty much reverse the process. No cutting or soldering is required!

Dec 08, 2008 | Philips 42PF7320A 42 in. Plasma HDTV

1 Answer

Philips 42pf7321d/37 blinking power board question


The probleis with one of the maina boards and trouble shooting would have to be done to see which board is bad.

Aug 17, 2008 | Philips 42PF9630A 42 in. Plasma Television

1 Answer

Power problem for phillips 42 plasma 42pf7321d/37


That blink don't mean nothing. Measurements need to be made. Don't just buy the board troble shooting would need to be done to see witch board is bad. Also look on the fron of the set and see how many time the led flashes. That wher your error code comes from..

Aug 17, 2008 | Philips 42PF9630A 42 in. Plasma Television

5 Answers

42pf7321d/37 phillips plasma tv


i am familiar with this power supply in philips models. this fault code on the psu refers to a fault within Vscan circuitry. you will be unable to check correct voltages as the set is in protection mode.

you can disconnect the Y-Sus board(to the left of the psu) and if the led stops flashing you can almost guarantee the Y-Sus pcb is faulty!

Jan 13, 2008 | Televison & Video

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

Related Topics:

1,185 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

69878 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6445 Answers

yadayada
yadayada

Level 3 Expert

64052 Answers

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

Answer questions

Manuals & User Guides

Loading...