TV

Facing TV Problems? Ask a TV Technician.

Ask an Expert,
Get an Answer ASAP!

This answer was rated:

I have a old Panasonic Plasma TV model TH-42PD25. The model…

I have a old...

I have a old Panasonic Plasma TV model TH-42PD25.

Technician's Assistant: Just to clarify, what's the exact model of your Panasonic? And can you guesstimate how old it is?

The model is TH-42PD25. it is 12 1/2 years old . It works perfectly.

Technician's Assistant: How long has this been going on? What troubleshooting have you tried?

Except a couple days ago the imput will change without touching the remote. It will go from HDMI tp antenna to comp 1 to comp 2 , etc. I called the cable compamy they say it is not their box.

Technician's Assistant: Anything else you want the electronics expert to know before I connect you?

When the imput changes by itself it might come back to HDMI in a few minutes or not for awhile.

Show More
Show Less
Ask Your Own TV Question
Answered in 1 minute by:
7/18/2017
Anthony_Infotech
Anthony_Infotech, Technician
Category: TV
Satisfied Customers: 16,263
Experience: 20+ years experience TV expert (field and bench) 9 approved qualifications in TV-ELECTRONICS
Verified

Hello
Welcome
I am sorry you are having trouble here,I am presently reviewing your question be with you very soon.

Anthony

Ask Your Own TV Question

There are two things that can cause this let me know when you are on-line please by replying in the box below

Any pop up messages you may see are sent by the site not me, I am only available by chat myself (typing here)however if you take the phone call option another tech on the phone team may help

Ask Your Own TV Question
Customer reply replied 1 year ago
Thank you,
I am online. what is best chat or should I call?
Customer reply replied 1 year ago
Lets try this first. If necessary I can call later. I already paid $5.00 for this

I am only available using the chat, what you need to do first is TAKE THE BATTERIES OUT of the remote and note if it still changes input (the remote could be transmitting erroneously)let me know about this first please

Ask Your Own TV Question
Customer reply replied 1 year ago
what remote the original or the cable tv remote?

The remote that actually changes the INPUTs it could be either or both if both take batteries out of both then note how the set behaves

Ask Your Own TV Question
Customer reply replied 1 year ago
OK,
I have taken the batteries out of both remotes. BUT, currently the TV is fine. All this started about 4 days ago. then the TV was fine for 2 days before it happened again. the OK for a day. Then last night after being for about 1 1/2 hours it happened again, and after about 10 minutes it came back to HDMI and was fine for 10 minutes. Then the imputs began changing again over and over, after about 45 minutes I shut off the TV. This morning before work it was fine for the 15 minutes I had it on. Now tonight it is now fine.

OK I totally understand that its intermittent, the second thing that is common for causing this is oxidized switches on the set itself in your case the one for switching INPUTs on the set itself, the workaround for that is to disconnect the function board on the set itself, so the back comes off and you pull out the lead that feeds that board that contains the volume\channel change and input buttons on the set itself do you understand what I have indicated so far?

Ask Your Own TV Question

Once the function board is disconnected those buttons wont work on the set itself however they are seldom used anyhow you just continue using the remote, the function board can be replaced of course at a later date

Let me know if you need more help

Please I would be grateful if you could you rate the answer positively with the rating bar of stars at the top of the page, rating me positively enables me to receive payment from the site thank you, ***** ***** question is open for 30 days

Many Thanks

Anthony

Ask Your Own TV Question
Customer reply replied 1 year ago
how do I know what lead, and what board it is? Is it behind the buttons on the tv

Yes its directly behind the buttons on the TV you will see one lead feeding it, just pull it out

Ask Your Own TV Question
Customer reply replied 1 year ago
I just looked at the buttons and I noticed that the menu button seems to be pressed in. It does not stick out like the other buttons. I have not used these buttons in a long time as you said
Customer reply replied 1 year ago
How and where would I get a function board?

If it was the menu button then the menu would be coming up all the time , you have the set switching inputs so its the input button to blame, I have also had the channel and volume buttons do this, its usually because the climate the set is in may be humid?but not necessarily

Ask Your Own TV Question

You will need to get the partnumber from the board itself and google it, it may not be available now

Ask Your Own TV Question

My suggestion is a workaround as the buttons are seldom used

Ask Your Own TV Question
Customer reply replied 1 year ago
I do not have a imput button but I have a TV/ viddeo button is that the one?

Partnumbers may be different even in the same model set so this is the way it has to be done

Yes that will be the input button

Ask Your Own TV Question
Customer reply replied 1 year ago
OK thanks I will try it if or when it starts again.. as for now after I get to the channel I want I will take out the batteries.

Yes that check is simply to eliminate the remote control as the cause

Please I would be grateful if you could you rate the answer positively with the rating bar of stars at the top of the page, rating me positively enables me to receive payment from the site thank you, ***** ***** question is open for 30 days

Many Thanks

Anthony

Anthony_Infotech
Anthony_Infotech, Technician
Category: TV
Satisfied Customers: 16,263
Experience: 20+ years experience TV expert (field and bench) 9 approved qualifications in TV-ELECTRONICS
Verified
Anthony_Infotech and 87 other TV Specialists are ready to help you
Ask your own question now
Customer reply replied 1 year ago
OK I SHALL DO IT NOW

Any issues just come directly back here, do not open any new questions thanks,

Ask Your Own TV Question

Thank You for the rating

Anthony

Ask Your Own TV Question
Customer reply replied 1 year ago
How do I come back to here?

You prob wont have to but if you do just bookmark this page

Ask Your Own TV Question
Customer reply replied 1 year ago
OK THANKS

Your Welcome

Ask Your Own TV Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a tv technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Anthony_Infotech Your Own Question
Anthony_Infotech
Anthony_Infotech
Anthony_Infotech, Technician
Category: TV
Satisfied Customers: 16,263
16,263 Satisfied Customers
Experience: 20+ years experience TV expert (field and bench) 9 approved qualifications in TV-ELECTRONICS

Anthony_Infotech is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

I'm screaming your praises!! WOW! I plugged my TV in and bammo! The picture came on bright and beautiful. What a relief! YOU saved me some money and headache.

VMUnited States

I love this site! $9 instead of a repairman or new/used frig can't be beaten. This older woman will worry less now that she knows about this site. Bless you all.

WindyUSA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

< Previous | Next >

Meet the Experts:

Louie

Louie

Technician

3,022 satisfied customers

25+ yrs. experience in the field and 5+ yrs. online, down to component level.

Rod

Rod

TV & Communications Sys Repair

2,355 satisfied customers

FCC Commercial License, Previous owner of Electronics Repair shop, 40+ years in electronic systems.

Steven

Steven

Technician

1,457 satisfied customers

Ma. Master Technician Lic. Authorized Warranty Support.

euro-pro llc

euro-pro llc

Technician

1,128 satisfied customers

20 years in TV repair,certified by all major brands- Sony,Samsung, LG,Toshiba, Panasonic, RCA,

Daniel

Daniel

Electrical Engineer

1,072 satisfied customers

BSEE (Electrical Engineer), 10+ years electronic design experience ,chip, board, component expert

Conrad

Conrad

Technician

946 satisfied customers

Training on many types of consumer electronics, training on Sony Samsung and JVC

Neil

Neil

Technician

803 satisfied customers

More than 10 years experience repairing TV's and electronics equipment.

< Previous | Next >

Related TV Questions
Our panasonic plasma tv model th-p50ut50a is not allowing
our panasonic plasma tv model th-p50ut50a is not allowing wireless connection - would you help? It works on and off. Wireless reception is fine in the room - (I am currently using it on my wireless ma… read more
Louie
Louie
Technician
Associate Degree
3,022 satisfied customers
Not getting any sound and probably havnt connected the HDMI
not getting any sound and probably havnt connected the HDMI cables correctly … read more
Louie
Louie
Technician
Associate Degree
3,022 satisfied customers
Will my old panasonic th-42pd25 plasma support a 4.0 HDMI???
will my old panasonic th-42pd25 plasma support a 4.0 HDMI??? … read more
Jack
Jack
technician
factory trained engineer
2,164 satisfied customers
I have a Panasonic plasma TV, model TH-42PD25 I have the
Customer: I have a Panasonic plasma TV, model TH-42PD25 Hello. I have the same model (Panasonic TH-42PD25). I was reading your article but in my case when I turned On the TV, the speaker are doing som… read more
Pete
Pete
Engineer
Bachelor\u0027s Degree
1,130 satisfied customers
We have a TH-58PX60U Panasonic Plasma TV with bad HDMI inputs?
We have a TH-58PX60U Panasonic Plasma TV with bad HDMI inputs? We can get a picture with video cables but no signal with either of the 2 HDMI imputs. Can this be repaired by a do-it-yourselfer? .....i… read more
Anthony_Infotech
Anthony_Infotech
Technician
Vocational, Technical or Trade Scho
16,263 satisfied customers
I have purchased 2 x Panasonic DTV, 1 x Plasma model No TH-P50ST60Z
I have purchased 2 x Panasonic DTV, 1 x Plasma model No TH-P50ST60Z and a LED TV model No TH-L32E6Z. Both units are connected to a MY SKY decoder via HDMI cabling and also to a TV Antenna via an anten… read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
I have a panasonic plasma th-42py70fa, 26 mai 2008 with HDMI
I have a panasonic plasma th-42py70fa, 26 mai 2008 with HDMI 1 en HDMI 2 but I always worked with scart. After buying new HD canal digitaal receiver two years ago, I tries to connect both HDMI, but no… read more
Anthony_Infotech
Anthony_Infotech
Technician
Vocational, Technical or Trade Scho
16,263 satisfied customers
I just purchased a TC-P55ST50 Smart TV and I am having
Hello. I just purchased a TC-P55ST50 Smart TV and I am having problems with getting my Panasonic SC-HT920 hooked up and working because my old Panasonic TH-42PD25 had the ability to plug in component … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,666 satisfied customers
Sorrt bother ya. I have a 62 inHMX84 Dlp TV. For some reason
Hello There sorrt bother ya. I have a 62 inHMX84 Dlp TV. For some reason my tv came with 2 HMDI hookups and when i hit my remote for input choice only 1 shows uo. There should be 8 inputs showing cabl… read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
My panasonic plasma tv shows a picture on component 1 but our
My panasonic plasma tv shows a picture on component 1 but our VCR and wii which had been plugged into other inputs video 1 and video 2 are not visible. We have switched plugs and cannot gat a picture … read more
Aric
Aric
Owner/Operator of a custom AV company
Run A/V and repair business for over
13,666 satisfied customers
I have a Panasonic TH-42PD25. The HDMI input has stopped working.
I have a Panasonic TH-42PD25. The HDMI input has stopped working. All worked fine until moving the unit to a wall mount and the HDMI cable was accidently pulled out. I have tested the unit with 3 othe… read more
Tim Nolan
Tim Nolan
TV Repair Center Owner
Associate Degree
17,254 satisfied customers
Panasonic TH-42PD25 Switched to HDMI from Components when I
Panasonic TH-42PD25:Switched to HDMI from Components when I had trouble with my Bose DVD system stopped displaying through Components. Couldn't get TV to recognize 2 Components so switched to HDMI. HD… read more
Tim Nolan
Tim Nolan
TV Repair Center Owner
Associate Degree
17,254 satisfied customers
Panasonic digital progressive plasma model TH-42PD25. When
Panasonic digital progressive plasma model TH-42PD25. When I press the power button I hear the usual noise in the TV, but the screen does not come alive and the red indicator blinks, 12 blinks then so… read more
PramitP
PramitP
Self-Employed
Diploma
9 satisfied customers
I have a panasonic th-42pd25 plasma. I moved it to another
I have a panasonic th-42pd25 plasma. I moved it to another room and now I get no video. I get audio when connecting cable box through RCA connections. Menu screens all work. Tried hdmi,cable,component… read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
Hello - I have a 4 yr old Pana Viera TH-42PD50OU. 1) Problem
Hello - I have a 4 yr old Pana Viera TH-42PD50OU. 1) Problem is 1 month ago the HDMI stopped functioning; Comcast tech came out, ran tests - the DVR box was switched and same thing happened; said the … read more
euro-pro llc
euro-pro llc
Technician
Associate Degree
1,128 satisfied customers
I tried to chang the channel during the night and evidently
I tried to chang the channel during the night and evidently hit the wrong buttons. Now all we can get is snow. Any easy answers?… read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
I have a TH-42PD25 TV that will not recognize our new Wii game
I have a TH-42PD25 TV that will not recognize our new Wii game when plug into comp or video but the game works fine on other TV's in our house. This TV will not recognize my VCR either (never has)… read more
TV Tech1
TV Tech1
Associate Degree
4,544 satisfied customers
I have a panasonic 42 lcd and when I turn it on it lasts about
I have a panasonic 42 lcd and when I turn it on it lasts about 5 seconds and goes dark. is not the conecting cable or the cable set top… read more
Dan - Master Tech
Dan - Master Tech
Small Business owner
Technical School
279 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x