tv troubleshooting

How can I fix my tv? When the power switch is touch it make a sound, but after it is powered up, there are no picture or sound.

Fieldy
Fieldy's picture
Need some help....I was

Need some help....I was watching my 36" Panasonic CT36E13 this evening when all of a sudden, I heard what I remeber to be a "zap" noise and the picture immediately faded out. I tried both the remote and the television  power button and nothing. I reset my surge protector, nothing. Unplugged the TV and plugged back in nothing...I did notice however, that when the TV is plugged in, I can hear a faint clicking somewhere in the set.

 By all means, I'm not a tech-head...I'm lost, and my 2 year old daughter is extremely upset that she is missing her cartoons!!!!! Any help/hints/advice? TV is only 3 years old.....Reading some previous posts, I guess I'll leave it unplugged for a while?

 

HELP!!!

Larry Dillon
Larry Dillon's picture
If you are not tech savay, I

If you are not tech savay, I would recommend that you call a local repair center as there are no user replacable parts inside this TV set, unless you have the proper tools as well as the service information such as a service manual, the know how to solder and unsolder and a few pieces of test equipment.  this problem your having could be anything from a main or sweep power supply problem.. Please play it safe and call a repair company as a TV set is no place to be experimenting around inside of.  Good Luck, and please let us know how this turns out.

Sky
Sky's picture
I have a Hitachi 51" wide
I have a Hitachi 51" wide screen (51SWX20B).  It's probably about 5 years old and when you turn it on it turns itself off after about 2 seconds.  It seems to me to be a fuse or something but I am far from an electronics expert.  There is only one TV repair close by and they want me to bring the TV in and they also have a questionable reputation.  Thanks in advance for any help.
daniel wendle
daniel wendle's picture
hello all,

hello all,

i have a RCA big screen tv, called home theatre model number P52731WK this tv started to have red lines out of wack but after heated up would straighten up this continued for a while buy now the red wavy lines will not straighten up they are there continously and make the picture distorted, we do not have a reliable repair man in this town and i need to know if the problem can be diagnosed here and someone tell me what to do to fix it.  i am not having any other problems just the red wavy lines,  thanks you very much

dan

daniel wendle
daniel wendle's picture
chassis number for above tv

chassis number for above tv is PTK169PGB

daniel wendle
daniel wendle's picture
chassis number for above tv

chassis number for above tv is PTK169PGB

hitman
hitman's picture
I HAVE AN RCA 52IN BS

I HAVE AN RCA 52IN BS #P52720LV. TURN ON TV HAS POP LIKE A COIL SPARK AND WILL NOT TURN ON   SUPERBOWL TIME HELP!!!!

Larry Dillon
Larry Dillon's picture
Daniel, do you know how to

Daniel, do you know how to read a service manual?  Can you solder and own a multimeter?  If the answer is no, it would be best for you to take the set to a pro as these sets do not have modules that you can swap out.  These sets are repaired to the componet level.  This is not something you can learn overnight or even in a couple of weeks.  if you get the manual and you know how to troublkeshoot solid state electronic circuits boards, then first thing I would do is to check fuses in the set.  If those are blow, install a 100 watt light bulb across the fuses and see if the set will try to come on or if the bulb glows bright or pulses on and off.  If it does there is a short in the set. Your first complaint was a distorted picture with the red lines out.,  I would check the convergence IC for shorts.  Then if they are bad, they could have cause a problem in the power supply, as the more you let a set have certain problems, the greater the risk that somethine else in the set will go bad.  Good Luck, and let us know how you made out.

bodyman36
bodyman36's picture
help i have a sdp 5065

help i have a sdp 5065 pioneer projection  that takes longer and longer to poerup both auio and video , but after aq minute it  all powers up and works great, seems to be taking longer and longer , acts like a low voltage   transformer or cap. anyone rmemeber this probelm and what the fix was or is???? help help  larry 618-893-2252  pro1ab@verizon.net

j t
j t's picture
I have a panasonic ct-32hc43

I have a panasonic ct-32hc43 that will not turn on I unplugged it for ten minutes plugged it back in and it still won't turn on please help

Larry Dillon
Larry Dillon's picture
jt, your set has a power

jt, your set has a power supply problem or a fault in the sweep supply. You will need toi get a manual and check if the set is going into highvoltage shutdown, over voltage shutdown or if the power supply or the sweep supply is even starting up. If you have no solid state repair experience, please play it safe and call out a tech ot take the set into the local repair depot, as this is a job for an experienced tech. Good luck, let us know how you made out getting this set fixed.

bodyman36
bodyman36's picture
help i have a sdp 5065
help i have a sdp 5065 pioneer projection  that takes longer and longer to poerup both auio and video , but after aq minute it  all powers up and works great, seems to be taking longer and longer , acts like a low voltage   transformer or cap. anyone rmemeber this probelm and what the fix was or is???? help help  larry 618-893-2252  pro1ab@verizon.net
Larry Dillon
Larry Dillon's picture
Bodyman36, I am working on

Bodyman36, I am working on your problem.

j t
j t's picture
Brought the set to the shop

Brought the set to the shop they said it is a power supply problem and would be about $200.00 to fix what do you think,

Larry Dillon
Larry Dillon's picture
j t, it depends on how old

j t, it depends on how old the set is.  200 bucks to repair the power supply in a 10 year old TV set would be a waist of cash in my opinion. But if the set, lets say is 6 years or less, Yea take a chance.  Let us know what you decide. 

j t
j t's picture
The set is only four years

The set is only four years old. Do you think I am taking a chance? The tec told ne that it is a good set and he do's not see many come in for service. He also told me he only sees this do to lightning or surge he said he really do's not see this in the winter the set was plugged in to a surge protector.I hope I can get another 4 years. What do you think.

essell
essell's picture
Hi Larry,

Hi Larry,

I have a Toshiba 42" Theaterwide rear project TV that recetly started developing some problems.  After moving it to a new apartment, when first turned on the picture would be arguably "messed up" for lack of a better term. It wasn't like a color convergence problem, but more like a scrambling of the image where horizontal sections of the picture image would display and flicker. Eventually, after the TV seemingly warmed up, the problem would go away.

Unfortunately, the problem is now persistant and I'm wondering if there is anything I can do to service the TV myself.

I have experience fixing smaller electronics like DVD players and AV receivers mostly by hunting for blown capacitors on power supplies and replacing them. However, I'm not sure if this type of problem can be fixed merely by doing that. Any advice?

 

Thanks!

-chris 

essell
essell's picture
Nevermind I think I found a

Nevermind I think I found a thread describing my exact problem!

The "Toshiba picture is zig-zag" thread.. Looks like it is a problem with capacitors in the hyper board, I am really excited that this me be a replacement of capacitors fix..

 

Larry Dillon
Larry Dillon's picture
Yes it could be your problem

Yes it could be your problem and you can go to mcmone.com or tritronics.com to get the proper capacitors. Good Luck and let us know how you made out with this repair. Just remember to be very carefull when replacing surface mounted capacitors.

bodyman36
bodyman36's picture
help i have a sdp 5065
help i have a sdp 5065 pioneer projection  that takes longer and longer to poerup both auio and video , but after aq minute it  all powers up and works great, seems to be taking longer and longer , acts like a low voltage   transformer or cap. anyone rmemeber this probelm and what the fix was or is???? help help  larry 618-893-2252  pro1ab@verizon.net
pennyking
pennyking's picture
Hi  I have a 36" zeith tv I

Hi  I have a 36" zeith tv I have no sound but when I hook it up to the cable company I have sound I'm getting rid of cable and I  need to fix this  can you help

Larry Dillon
Larry Dillon's picture
Ok first thing we need to

Ok first thing we need to determine is how is the cable connect to the TV set, what is the model number of the TV set? What do you plan to use as a reception for the TV set?

bodyman36
bodyman36's picture
help i have a sdp 5065
help i have a sdp 5065 pioneer projection  that takes longer and longer to powerup both audio and video , but after a minute it  all powers up and works great, seems to be taking longer and longer , acts like a low voltage   transformer or cap. anyone rememeber this probelm and what the fix was or is???? help help  larry 618-893-2252  pro1ab@verizon.net thank you
Larry Dillon
Larry Dillon's picture
bodyman there is a bad

bodyman there is a bad capacitor but I do not know what capacitor was bad.  I used to replace the entire module as we were Pioneer authorized.  Best thing to do is get a good Capacitor ESR meter and start first with the main power supply and work your way though the TV set.  Good Luck

ttoner
ttoner's picture
I have a Zenith flat panel

I have a Zenith flat panel plasma tv. All the sudden it won't turn on. The green light flashes 3 times then goes off...ANY BODY HELP !!!!!!!!

jd5449
jd5449's picture
I have a wt-a42  the code i

I have a wt-a42  the code i have is hor defl bad  changed stk because they were getting hot and shutting the tv down and only had sound but it didn't fix the problem so put the old one's back in being the new one's were not oem and higher heat rating  crt were warm not on 

annisa888
annisa888's picture
Hi, all... Brand new to this

Hi, all... Brand new to this forum, with a dumb question: Does anyone know if a 1993 Zenith Sentry 2 TV is DVD player compatible? We hooked up a Panasonic DVD player in the VCR connection and get a B&W picture and no sound. The TV works fine with the cable connection. It has never been hooked up to any aux. equipment. (our reg. TV is temporarily out, the Zenith is a temp. substitution) Thanks for anyone's input... annisa

Fairlane500
Fairlane500's picture
Does anyone know what would

Does anyone know what would be wrong in this situation?...2006 Sony KDF-50E2000 50 in. HDTV LCD TV   will not power on from the factory. It is an ebay auction and wondered if it would be worth buying for $500.

Larry Dillon
Larry Dillon's picture
jd5449, what brand and model

jd5449, what brand and model number of the set you have.  Also the stk IC's are suppose to get hot but not too hot to touch. 

Larry Dillon
Larry Dillon's picture
annisa888, did you have this

annisa888, did you have this DVD player ever attached to a set that worked?  Try it on another TV set.  if it still has no color, go into the menu and check the mode that this DVD is in.  It should be in the NTSC mode not the PAL mode.  if it works on another TV set, then there is most likely an input circuit problem in the old Zenith.  Also a model number of the DVD player would be nice so i can see if I can find an owners manual on it.  Do you have an owners manual?  Good luck and let us know if this helps or what happens.

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