Question about Panasonic TH-42PWD7UY 42 in. EDTV-Ready Plasma TV

1 Answer

No Signal after 30 Mins

Hi I bought the Plasma screen along with an Elonex Media system, the Elonex connected via the PC port and operated just fine. However since then I have tried to hook up various systems (Sony Vaio, DVD-HD Recorder, Satellite box)to my plasma using various input boards ( DVI, SCART, S-Video & Component ) all with the same result. The plasma displays the image transmitted to it for about 30 mins from cold and then just goes to a blank screen (no signal) if you then turn the plasma to either standby or off for approx 5 mins then back on the picture returns but now for only about 5 mins then goes off again and this continues. I have checked all the power save options and all seems fine. Can anyone help.

Posted by on

  • 1 more comment 
  • Anonymous Jan 24, 2008

    My plasma works for 2 hours in the morning and then the screen goes off. The sound is ok. The light is green which means it doesn't go to the Standby mode. I had to turn it off for few minutes and then it works for few minutes. If I give it a good rest for about 5-6 hours then it works again for 2 hours.

  • Greg_hw Mar 01, 2008

    I have a similar problem on my Panasonic TH-42PHD6UY. However, it turns on for a fraction of a second and turns off. Have you been able to repair yours? I would like to hear more.


  • schemp Nov 29, 2008

    I have the same problem. With either a DVI cable, HDMI, Or Svideo input. If the TV is warm I get no signal. If cold I can get an hour os so. I have no issues with the RGB. Where can I buy this part with out the same problem. I don't want to buy on on ebay and face the same issue. My model number is TH-42PHD7UY.




1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 8 Answers

Posted for a similar problem:

This is an issue with IC 803 on the Z board. This is a 3.3 V regulator that supplies this voltage to the slot card cage. Most input boards use this voltage EXCEPT the component board which is why it keeps playing along whike the DVI, HDMI, or composite signals will cut out after warm-up.

This is a surface mount multi-pin IC and is a bit tricky to replace.
The entire board is PN# TNPA3198xx with suffix determined by what model 7 series plasma you have.

This was a problem from around Nov. 2004 to Mar. 2005

T Wiz

Posted on Mar 25, 2008


1 Suggested Answer

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

My TV will not stop switching itself off

Hi, The first thing to do is troubleshoot your TV independent to any other service provider that has a box that probably connects to your TV via a HDMI cable or old version scart.

Simply turn off your TV and turn off the socket that the TV is plugged in for 20 mins. Also turn of any Virgin media boxes.

After 20 mins turn on the TV. Do not worry if you get a message saying no signal detected. Wait and see if the TV stays on with no messages such as auto-standby. If the TV remains on with no problems then turn on your Virgin Media Box. The box will need to initialise ( about 30 seconds ) and then the TV should recognise the HDMI signal and you will see the Virgin TV.

If your TV turns off at any point during this process you have a fault with the TV, If when you turn on the Virgin box and no signal is detected you have either a cable connection problem or a Virgin Box problem, so using your TV REMOTE turn your TV back to ARIEL input to receive the normal television broadcasts via your Ariel that give you the normal freeview television that all modern TV's can receive, if you can get the normal reception contact virgin support who will troubleshoot your problem.

Nov 07, 2017 | Internet Computers & Internet

1 Answer

How do i fix my elonex tv

switch off.wait for 5 mins.
press & hold power button till it turns on then off.
ifno luck try this-
switch on by pressing power button while holding volume + and -.
keep hold of both until powers on.
can take few mins.
good luck!!!

May 04, 2014 | Televison & Video

1 Answer

Hi guys I have a Phillips Plasma TV 42PF5521D/10 model UK version bought in 2008 Guess what untill now i only used the HDMI ports to connect a Home Media Center PC to watch HD content. So last...

hi First, remember the old HDMI reset tech tip. Unplug all HDMI cables (one end will do.) Then remove power from all things in play. No, not just turned off but remove the AC. Wait 5 to 10 minutes, hookup re -test thanks

shaun .

Mar 09, 2017 | Philips 42PF5521D 42 in. HD-Ready Plasma...

2 Answers

GSM SIM port in dell inspiron 1420

the port is for msx12 serial sim... what u else need except the internet sim is the driver in cd which u got along with the sim, the cd contains a driver which will directly make icon on your desktop as a dial up connection, from there u can through the internet, but my suggestion, go for broadband.. dial up.. that also wireless wil not give satisfying speed..



Nov 14, 2008 | Dell Inspiron 1501 Notebook

2 Answers

Cannot connect to wireless network

Check the key carefully.
Also check your config carefully

Sep 09, 2008 | Computers & Internet

1 Answer

Cant connect to wireless router

Make sure the wireless adapter is enabled on the elonex laptop and its properly installed.
Connect wirelessly on the elonex one laptop using the same SSID and security key that you used on your main laptop.

Aug 07, 2008 | Belkin (F5D7230-4) Router (587009)

1 Answer

Hisense 42in plasma flashing blue/green pixels after 30 mins

Do a master reset
1. unplug the TV from the wall
2. remove the batteries from the remote
3. wait 24 hrs
4. plug TV into the wall socket
5. install batteries in remote
6. hold power on button for minimum 10 seconds
This was given to me by the Hisense service line and worked for my TV.

Aug 11, 2007 | Hisense TA42P40M 42 in. Plasma Television

1 Answer

Lg 42PX4dv PC connection

I think the problem is the screen resolution and size of your pc is not matching the resolution size of your tv or is not compatable at the size you have it on or you may have to change to 4:3 ratio from widescreen. In your manual it will tell you the resolution sizes that you tv uses. You would probably be better also using the VGA to DVI lead, thats if it came with the tv (it does in the UK) as it supports higher wide screen resolution, whereas VGA will only support 1024 x 768 or there abouts.

May 19, 2007 | LG 42PX4DV 42 in. EDTV-Ready Plasma...

Not finding what you are looking for?
Panasonic TH-42PWD7UY 42 in. EDTV-Ready Plasma TV Logo

123 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Televison & Video Experts


Level 3 Expert

5326 Answers


Level 3 Expert

508 Answers

The Knight
The Knight

Level 3 Expert

75032 Answers

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

Answer questions

Manuals & User Guides