The image on this TV/VCR is too large, resulting in perhaps 20% of the image being lost off-screen.
I don't see any obvious CRT gun adjustment trim pots, other than brightness and focus. I'm afraid I will have to give up fixing this issue without any schematics or further information.
Everything else is normal on this Sansui TV/VCR, so I hesitate tossing it for a new one.
Thanks for any advice...
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Re: screen overscan too great
SOUNDS LIKE YOUR OVERSCANNING FOR SOME REASON.. MMM STRANGE AS USUALLY THERES AN UNDERSCAN PROBLEM IN THE VERT WITH THESE SETS.Opps sorry about caps. I would check to see the power supply ic and make sure its not putting out more then its supose to as I remeber those are between 125 and 130 volt dc output. as maybe the High Voltage shutdowns not working.oh is is too long and too wide??? if its only like too tall there is a small opot on the pcb thats for the verticle height buit its so small and easy to break off and if you do that the set will lose the verticle sweep totally. good Luck
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Assuming you have a flat screen 16x9 TV, make sure it is set to screen fit so that there is minimal overscan. The button should be called pic size or aspect ratio. Also set your laptop to the same resolution as your TV or as close as possible to a supported resolution.
No I am afraid you have the typical convergence problem. if you tried the adjustment, and it did not work, there are two convergence amp IC's that need to be replaced. they are on the printed circuit board, and they stand up mounted to a large metal heatsink. The IC's are black, and have white lettering on them, and statrt with STK. They will need to be unsoldered. If you have the soldering knowhow, this should not be so bad for you to do. But if you do not, play it safe and have a tech come in and replace these convergence amp IC's.
Hey! its me again. I think what your experiencing is called overscan. This website might help but if not just google how to fix overscan on a projection tv.
Check High voltage Block.After replacing ic's (STK convergence ic's) you need to adjust Black&White scale.Turn ALL screen adjustments to min.Turn TV on and adjust screen slowly for each gun (I would start with Red first ) when you came to point that you see red background with white lines across, at that point G2 is too high (that will cause TV to shut down,don't worry just lowered adjustment and turn tv back on) so adjust to proper voltage and do the same for each gun.After that, adjust focus for each gun (again all controls are on High Voltage Block and HVB is mounted on front of your tv after you take speaker gril out) black box with 6 controls' screen RGB, focus RGB .
You should do that in dark room in order to get perfect Black&White scale,when all guns are adjusted properly you will see grey picture.Make sure 'Color" adjustment on your display is down to 0. Another step is convergence adjustment ,Flash Focus etc.If TV stil shuts off after all, your Red picture tube is short inside,take crt pcb from tube,make sure TV is unpluged from power before that, and turn Tv on .If stays On tube need replacment...good luck)
You tv is a crt one , that means there will be three crt guns inside your tv. Check the base socket of all the three crt guns. if the base socket have some problem the picture will become out of focus.
That why there is two images. Just change the three base sockets of crt guns, will solve your problem.
This is not user adjustable. The problem is in the R G B circuit. Thr Red gun circuit is totally on! If this is transistor driven circuit replace the transistor. The component mostly mounted on the small PCB on the picture tube neck.