Question about Mitsubishi WS-55315 55" Rear Projection HDTV-Ready Television

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Mitsubishi WS-55315 audio no picture

I have a Mitsubishi WS-55315 audio is present but video is not. I have tried tapping on the side of it that didn't solve the problem. Also tried unplugging it for over an hour and that didn't correct the problem either. How or what can I do to try correcting this problem?

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  • trohntrohn Sep 14, 2008

    I have a Mitsubishi WS-55315 audio is present but video is not. I have tried tapping on the side of it that didn't solve the problem. Also tried unplugging it for over an hour and that didn't correct the problem either. How or what can I do to try correcting this problem? ( The menu shows up fine but when I try to watch a tv show it is not showing a picture I can only hear the audio)

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  • Master
  • 927 Answers

Good Day;

More than likely your TV has "COOLANT" (ethylene glycol) on the circuit boards. This fluid comes from the CRT's (picture tube) this fluid is used to keep the CRT's cool, such the name. This fluid from the CRT's leak when TV is on for long periods of time, the chamber expands and the seals leak.

One can remove this fluid by using "acetone" & small brush. The fluid is hard to see, use bright light, they spots can be smaller then a DIME. Also, the fluid can corrode the parts and traces on the boards. To protect the TV in future place heavy plastic or thick cardboard over affective area, make sure TV has proper air flow around TV.

If after the fluid has been removed and TV still does not work, call an Authorized Service Center to come out and repair TV after giving you an Written Estimate. The boards are not available.

Always try resetting the TV by unplugging it for one minute then plug back into A/C outlet and ALWAYS UNPLUG TV BEFORE ATTEMPTING ANY REPAIR ON THE TV.

Good Luck, big IRISH.

Posted on Sep 19, 2008

2 Suggested Answers

Benimur
  • 6966 Answers

SOURCE: Mitsubishi WS-55315 no video present

Hi,

Appreciate the direct "Ask Me".

You description of "...no video but with audio..." could indicate a number of possibilities:

  • power supply section;
  • tuner
  • video amplifier/selector;
  • vertical section;
  • horizontal section .
Other ideas are:
  • Since it has still sound, then the power supply is a least likely possibility;
  • Since it has still sound, then the tuner is a secondary suspect;
  • Since the menu shows, then the vertical and horizontal would be highly unlikely.
  • which eaves us the video amplifier or electronic/soft selector as the most likely culprit.
Further diagnosis would of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Posted on Sep 27, 2008

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Mitsubishi WS-55315 no video present


Hi,

Appreciate the direct "Ask Me".

You description of "...no video but with audio..." could indicate a number of possibilities:
  • power supply section;
  • tuner
  • video amplifier/selector;
  • vertical section;
  • horizontal section .
Other ideas are:
  • Since it has still sound, then the power supply is a least likely possibility;
  • Since it has still sound, then the tuner is a secondary suspect;
  • Since the menu shows, then the vertical and horizontal would be highly unlikely.
  • which eaves us the video amplifier or electronic/soft selector as the most likely culprit.
Further diagnosis would of course would require a fair familiarity of electronic components/circuitry and safety procedures, use of a DVM and a soldering iron. It would be to your added advantage access to a service manual or at the very least a schematic diagram with voltage readings. Should you be uncomfortable performing a DIY (do-it-yourself), perhaps your best bet would then be to seek the services of a qualified professional.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards. Thank you for using FixYa.

Sep 26, 2008 | Mitsubishi WS-55315 55" Rear Projection...

1 Answer

Audio but no picture


Try first unplugging the tv for one hour,
you can also try also a whack test, tapping gently the TV on the side , if you get picture then it is a wiring or a bad connection.

If you have no picture it can be the lamp, if the lamp is fine is either an internal board or the light engine, but this is uncommon.


here you can buy replacements.

If you need a technician call the number listed on the owner manual.

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Audio but no picture


sound is one circuit ... picture is over 3 thousand. I havent a clue either.


try turning it off and on fast... if see a flash or white flash you have high voltage at least as high voltage collaspes. check your inputs on remote you might be on av 2 or something.

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Are there internal picture controls for the WS-55315?


Good Day; OPTION MENU "MENU 0370" SERVICE MENU. CAUTION document settings before any adjustments are made. V = vertical, H = Horizontal. Good Luck, big IRISH.

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It sound like the components are ok. Are any of the component leads discolored from excessive heat? If so it may be that the resolder looks ok but is not actually adhering to the lead. Use solder wick or a desolder iron to remove the old solder, clean the lead(s) by scraping with a sharp knife edge to bare good metal and resolder.

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