Question about Sony KV-36XBR400 36" TV
Hello, i have the TV trinitron 36XBR400 about 6 yrs old. when i turn TV on, i hear sound only with no picture (black on screen). i turn it off. it goes off and i haven't seen any problems. i turn it on again. i hear sound without pictures. Do you have any ideals what cause problem? How do you fix it? Thanks, trung
Your set migbe missing the high voltage that lights up the picture tube,you need to check for loose conections starting at the horizontal drive transistor and transformer ,then check the horizontal output transistor for short,it needs to be checked with a meter if the output is shorted it probably open a safey fuse or resistor to prevent more damage.If you are familiar with tv service this will give a place to star but if you are not too familiar be safe and seek the help of a servicer.Let Us know if you need more information.
Posted on Oct 14, 2006
Deffective tube crt socket problem
Posted on Sep 11, 2007
The previous replies by techman and jomaru are probably the correct proceedure, but have you tried increasing the brightness and contrast to maximum ( this may be impossible with the on screen menu). Is there any static on the screen, if so the line time base and transformer would be OK. If you have good hearing, and no tinatus problems you should be able to hear a very high pitched whistle from the line timebase
Posted on Oct 15, 2006
Get kit 61-121 $7.95 and don't forget to solder the horizontal drive transformer, bet this has ring fractures and thats what kill these sets
Posted on Oct 14, 2006
There are many possibilities and most of them have to do with the "D" board, Sony p/n# A1346948A but testing is something generally beyond the scope of those less than technically equipped. You could order the whole board and put it in but that might be more than the simple fix you wanted or you wouldn't be here. So my best advice is to take it in to a qualified shop and have them estimate and repair it.. I see 3 or 4 of these sets in my shop a month, Sony XBR, and they're still very much worth the repair..
Posted on Nov 22, 2007
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