SOURCE: SERVICE MANAUL FOR A 57H84 toshiba
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BearWeb
SOURCE: VS-5042 Sound but no picture
It is not bulb, are you talking about the tube ? At the neck of the tube you will see some connections.Carefully abserve if any cracks on the solderings(we call them DRY SOLDER), then connect them with soldering iron. Always make sure you have disconnected the TV from the mains. If the problem still persists, you will need to reffer to a qualified and Experienced person. He need to look for the LOT section(Auxiary power supply), video amplifier, CRT sections.
SOURCE: Need to take apart a
This is fairly easy to do.
You will work from the back of the tv.
Steps:
1) Unplug the tv and wait a ten minutes for components to discharge.
2) Take the back panel off which is the brown pressboard with all the holes. Probably about 12 screws for that tv.
3) Take the back top plastic shround off if you want to clean the mirror. There are about 15 screws around the perimeter of the shroud, and maybe two in the back.
4) gently lift the shroud off the tv, it will have the mirror attached to the back of it so be gentle and careful.
5) lay the shroud on the floor so you can clean the mirror with window cleaner or non-streaking solution.
6) with the shroud off you should be able to see the tops of the CRT lenses covered in dust. Clean those gently. Do not bump them or turn the lens in any way otherwise you may need to do some re-alignment and/or re-focus of the CRTs.
7) DO NOT USE window cleaner on the back of the screen or front of the screen. You should get screen cleaner solution for this specifically. It might be best to just vacuum the spider webs off the screen and not clean it if you don't have the screen cleaner handy.
To clean the dust off the circuit boards, here is a tip:
With a clean soft paintbrush and a shop vac, or house vacuum, use the paintbrush and lightly brush around the components and on the circuit board. Have the vacuum hose right next to the paintbrush so it sucks up the dust as you stir it up. BE GENTLE on the components.
Stay away from the CRT necks and do not use your fingers. Remember the CRTs can still be carrying a good electrical charge, so best to avoid them.
Re-assemble the tv after everything has been cleaned. Figure it will take about 45 minutes if you haven't done it before.
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The repairman said that ther were aprrox 60 bulbs that would have to sent offf and cleaned and put back in ???
I know I am missing some info some where.Pleae help tell me what to ck and to tell me ho to get into it.Would be very thankful.
no they stay on all the time.
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