I have a Mitsubishi VS-5071.


  #1  
Old 04-28-03, 08:45 PM
Jagit
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Unhappy I have a Mitsubishi VS-5071.

Hello, first time post.
I have a Mitsubishi VS-5071. Sound works great, can hear every channel
but no picture. I have checked the pip module and the cap's have leaked. I did the test with the 4.7@ 50mf on pin's 5 to 11 and 7 to 9
grown on pin 11 the other cap grown on 9. Still nothing. Is there any hope. Thank for the site looks to be a good one.
God bless.
Jagit

 
  #2  
Old 05-13-03, 03:00 PM
Teratum
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Hello,

PIP is like people who has bad credit. Every time a Mitsubishi TV is bad, everybody blames on PIP.

I think in this case your PIP may be innocent. Most PIP problems that I used to see has picture rolling. You have no picture at all but you have perfect sound may indicate that you don't have the High Voltage (HV) for the picture to scan on the screen.

Try this simple test. Put your hand 2 inch off the front of your TV screen, Turn on/off your TV repeatedly and feel the static with the hairs back of your hand. If you don't feel any static each time you turn your TV on, you have no HV. If you do, you might have problem in your video circuit.

Either way let me know. HV is not that hard to fix.
 
  #3  
Old 05-14-03, 04:46 PM
Jagit
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Unhappy Thank's for the info.

Thank you Teratum. I did what you asked
and did not feel anything. You say if its the HV
it may not be that hard to fix, I hope so.

I do some electronic, I UV my own boards from schematic
and make a great deal of stuff for people on the net.
If you have the schematic, small stuff. I do have a little
back ground into it, but am in no way a master of TV repair.

Its a breed apart from what I do. I do thank you for the help.
Jag.
 
  #4  
Old 05-14-03, 07:38 PM
D
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That hair on the hand only works on Direct View sets. Not Projection. A better home method would be to listen closely while you press the power sw. Do you hear a slight crackle crackle? If so that is high voltage coming up. Meaning the Horizontal Output stage is working. I would have to pull the schematic to be of more help.

Dakota

http://www.fixyourowntv.com
 
  #5  
Old 05-14-03, 09:05 PM
Teratum
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Fixing HV is not hard but you have to know what you are doing. Dakota is right when he said the hair only work on direct view. If your TV is projection, crackle sound may be a bettter way.

Anyway, you need schemetic if you decide to fix it yourself. If you bring it to the shop, at least you know if the repairman is honest or not. At least you are not totally blind talking to him.
 
  #6  
Old 05-15-03, 08:14 AM
Jagit
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Unhappy I hear you I do.

I hear you I do. I would really like to try my self.
If you guy's have the time? I am a good helper, and
like I said know my way around a printed circuit board.

I would like to get the know how, as well. Only if you guy's
have the time to put in. Were do I get a schematic? for this
job. On the hare on the hand trick, I understood you
meant. I put my hand over each of the gun's, to see
if there was static, there wasn't any.

As for it crackling there is a little, not like on
a regular large tub TV, but it does crackle a little.
Thank you for the help, hope to may be one day pay it
back.
Later Jag
 
  #7  
Old 05-15-03, 09:59 AM
D
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We have worked on several of your model with your symptoms. If your are handy you have a good shot at fixing it yourself. A lot cheaper than a service call.

Dakota

dakota@fixyourowntv.com
or
http://www.fixyourowntv.com
 
  #8  
Old 05-15-03, 10:50 AM
Jagit
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Wink Thanks guy's

Thanks guy's, its what I would like to do.
Saving money is the first thing always, and any tip's
are help is appreciated.
Jag
 
  #9  
Old 05-15-03, 11:05 AM
Teratum
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Alright then, since you commit and willing to get your hand dirty on this one, we are here to help you. This is the whole spirit of do-it-yourself and everyone who chips in with comments and knowledge for the forum to help fix the problems.

To get start, you should get a service manual of your TV model. You can purchase it from www.servicemanuals.net. The manual contains valuable information that can help you diagnose the problem and fix it systematically.

After you get the manual or schematic, locate the horizontal output transistor and measure DC voltages on all 3 pins and compare with the values in the schematic. It should give you some clue. We can start from there.
 
  #10  
Old 05-15-03, 10:20 PM
Jagit
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Talking Cool, I will get the info and post such.

Cool, I will get the info and post such. We'll start from there
thanks for the hand. This site reminds me of a site forum I sub to
in a hobby, I was in some time back. It was a Dss site, I just went there to help
others out. Like this one had a great bunch of people in it, and was fun.

I will like this one as well, and like I said before I hope to repay the help
that I got, if it were not for people like you guy's here, with the same sprit
and of love of the hobby as I have, and in some case the job to help others
to do it there self, we would be at the behest of TV repair shop's that are
not so honest, like some of the car mechanics.

After all if you don't know, how can you know if your not being taken?
The net and site like this will all but take care of that. Info is half the battle
from, how much is fare to who is trying to take you.

Thanks I will do some homework now.
Jag
 
  #11  
Old 05-18-03, 09:35 PM
HLeeS
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I have the same model, similar problem. No picture on any input but the close captioning and channel/input numbers are fine as is the sound. So I must have HV, right? Any clues
 
  #12  
Old 05-19-03, 08:27 AM
D
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If you have anything on the screen then you do have High Voltage.

Dakota
 
  #13  
Old 05-19-03, 01:15 PM
Teratum
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Totally agree with Dakota. Anything showed up on the screen indicates not HV problem. Jagit, do you have anything showed up on the screen at all, like close caption or chaneel number?

HLEES: The close caption and the channel info are generated differently from the receiving video signal.I bet they are in color too (green or blue). This means your color circuit works. If you have the schematic, you can pretty much isolate the problem to be very likely along the Y-signal path.
 
  #14  
Old 05-19-03, 03:50 PM
HLeeS
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I will order the manual from the source listed above. Besides the channel numbers (green) and the captioning (White on black box) I can use the menu as if there's nothing wrong. Convergence adjust works fine!
 
 

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