Question about Mitsubishi CS-40505 TV

Television has audio but a black screen

The screen is black, we have audio. this is my mom's tv. the cable tech says it could be the tube. is this possible to repair and is it costly. the tv was purchased in may of 1996 thanks pagman

1 more comment
soyedil Nov 16, 2007

i have a mitsubishi VS4543..with no picture ..audio ok..i already repleace the picture tube before...about 3 years ago..do i have the same problem again?..and where can i get the picture tube?

Thanks

Victor
mistabby Nov 30, 2007

the t.v. had been working great until today. I turned it off before i went out then when i came back in about 10 mins. later it was a black well not exactly black because there is some light behind it and the is a line running straight across it please can someone help me.
mollieanna Feb 02, 2008

we just bought a mitsubishi 39 inch tv. no manuals I dont even know the model number plugged in no power replaced fuses have power now and sound no picture just a black screen like no power.

1 Answer

Michael Ifurung

Level 2:

An expert who has achieved level 2 by getting 100 points

MVP:

An expert that got 5 achievements.

Governor:

An expert whose answer got voted for 20 times.

Scholar:

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

Bad technicians always say picture tube problem when the TV has black screen with sound. This a false statement and in some cases techniciacns use this to scare the owner or the charge a hefty amount. The truth is that picture tube outlast most component in the TV. If it will fail, it is gradual like the colors will fade or one or several color will be missing. This condition is the degration of the filament in the gun (CRT tv has three -Red, green , blue) I started to repair TV in the early 80's and only in one occasion that the Tube fail and it is a crack in the neck. For black screen with sound, the most common cause is the HV supply problem / Horizontal section. This can be caused by many things, like flyback transformer failure, horizontal outout transistor, horizontal drive, etc. For the cost-depends on where you are, in some countries labor is dirt cheap, in other ountries the parts are expensive.

Posted on May 24, 2007

1 Suggested Answer

6ya staff

2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this 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.

Here's a link to this great service

Good luck!

Instant Repair Help over the Phone

6ya.com

Save Time & Money by instantly connecting to...

Posted on Jan 02, 2017

Add Your Answer

Upload

Uploading: 0%

my-video-file.mp4

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

Loading...

Include an image. It's worth a thousand words.

prev next

Related Questions:

2 Answers

Black screen but i do have sound

HelloCheck the backlight inverter board. If it has damged, most common fault to LCD TVs, there will be no backlight to the LCD screen, and will look black. Your tV has sound output without picture. This means that all other boards ar functioning well. Check the backlight inverter section and CCFL tubes used in backlight assembly. OK.

Dec 20, 2011 | Hisense TL1700 17 in. LCD Television

1 Answer

I have audio, but no video, what's up? last night I was watching, and the picture went out, I truned off the TV, then restarted it...the picture came back. Today I tryed to turn it on and no picture, just...

s the audio coming from the TV's internal speakers, or from an external sound system? In the 169 series chassis, if the power supply caps or secondary rectifier are bad, or if the high voltage splitter has shorted inside, the set will not run and there will be no picture or sound from the TV. If the picture is completely black but the TV still has audio, press the menu button and see if the menu comes up on the screen. If the menu is there, check your cables on the back of the TV. If you are using a cable or satellite box, the box could be bad or the video wire could be bad or loose. If you do not get the on-screen menu, then I would guess that the solder joint next to the flyback transformer that sends filament (heater) voltage up to the picture tubes has cracked, or the low value resistor in the heater circuit has opened up. If that is the case, have the set serviced by a qualified tech familiar with the 169 series chassis.

Oct 17, 2008 | Televison & Video

1 Answer

Tv has audio but no picture. tv was working perfectly fine last night with audio and pic but now no picture

kindly check ur video cable if ur r useing audio/video cables for you tv
if not u need to check for ur tv tube

Jun 04, 2010 | Mitsubishi WT-46807 46" Rear Projection...

2 Answers

Screen is blank but can hear all the channels. cable guide shows up but no picture. What do you think the problem is

The video circuit section of your LCD needs service and this will require board level troubleshooting and by a qualified service tech. There is a light tube or floresent tube that excites the liquid crystals to give visual to the screen and it may have blown and needs replacement.

Feb 04, 2010 | Insignia IS-LCDTV32 32 in. Television

1 Answer

I have two Tech view 42" ptsw4200u televisions. The screens do not come on and stay black

the backlight might be burned out the Televisions(LCD) use a flourecent tube to light up the screen. I would either have a professional replace the backlight or buy a new TV. I do not know about plasma TVs and how they are lit up if your TV is a plasma screen TV I woulsd consult a professional or the manufacturer of the TV for Help.

Jan 04, 2010 | TechView PTSW4200U Television

1 Answer

The color on my 55

Change the coolant fuild in R/G/B Tubes.

Dec 30, 2009 | Philips 55PW9363 55" Rear Projection...

1 Answer

I have an RCA F27636BC made in Oct. of 96 and I

There are a few possible reasons, the first being that the tube has burned out inside the TV. But before jumping to that conclusion I would check to make sure that your A/V cables are connected properly (video being the yellow cable, or if you may be using S-video which is a black cable that has 4 steel pins and 1 horizontal black plastic or metal one) and make sure that you have the cables plugged into the same numbered input: ie. Audio is in audio 1 and video is in video 1 rather than audio being in audio 1 and video being in video 2.
Also be sure that you've selected the right input from the remote or from the television itself.

Dec 08, 2009 | RCA F27636BC 27" TV

1 Answer

SONY KP57WV600-Turns Blue and then turns black leaving no picture

Blue picture tube in TV is bad and requires replacement by qualified TV tech.

Apr 29, 2009 | Sony KP-57HW40 57" Rear Projection...

2 Answers

A solid black block covers majority of screen - all else works

Try turning off the text box function of the closed caption decoder.

Sep 25, 2008 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Flashing light

this unit will have what is called ik protection wich means that the picture tubes are constantly monitor with this system all the way to the video procesor so the picture will desapear to a black screen even if the audio is ok,there may be a solution if contract a tech like me to adjust the bias so that compensates the drives to the pictures tubes since 1 or the 3 pt are week at this point.

Dec 25, 2007 | Sony KP61XBR200 TV