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Sony FD Trinitron WEGA KV-21CL10 21" TV Questions & Answers
Sony KV-28CL10U TV
Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "
brand name" to your device, in the "
Search box at the top right of the display window of the Homepage" to get gathered related posts
3/9/2017 11:23:54 AM •
Sony FD...
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Answered
on Mar 09, 2017
Tv screen does not show blue color what can i do
Check all the solder terminals at its video output card;[CRT base card]. Check the soldering of the CRT base socket. A dry solder joint or an open color output transistor can cause this fault; provided the picture is there. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
http://electronicshelponline.blogspot.com/
The fault is technically called 'one color predominant screen'. Use this keyword to search the site.
1/26/2015 1:28:46 PM •
Sony FD...
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Answered
on Jan 26, 2015
What to do no power on 21" sony Trinitron 1997 ?
first check main card and then check fuse .if fuse is blown put new one amp fuse.af set is ok leave it .if not work then chcck seitching transister and S.T.R 6007and oo120volt zenner diode.
9/20/2014 6:34:57 AM •
Sony FD...
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Answered
on Sep 20, 2014
Free TVs schematic diagrams and service manuals
I never could get my service manuals for free. In my days I even had to prove I was certified by Sony to repair their Triniton TV.
I can't find any Trinitron service manual and I discovered recently I even lost my PDF copies. There used to be some east European sites with manuals, but I think "security" from NSA is blocking everything coming from there.
Sorry I can't help now. Ill keep looking, because I want my PDF's back.
6/24/2014 7:44:26 AM •
Sony FD...
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Answered
on Jun 24, 2014
I HAVE SONY 21''TV NOT ON BLINK 4 TIME
These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power led, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating, to many popular brand TVs and other devices. Viewing it in "
Mosaic" will make surf easy.
http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given
3/5/2014 8:15:01 AM •
Sony FD...
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Answered
on Mar 05, 2014
Why are green horizontal lines are appearing, too
These horizontal lines are vertical flyback lines and would indicate
one or more of the tubes cathode drive circuits are defective.
As the picture is predominantly yellow this would indicate excessive drive to red and green guns. Check the red and green video output stages especialy any clamping diodes.regards from Vintie
10/30/2013 5:22:03 AM •
Sony FD...
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Answered
on Oct 30, 2013
My sony 21 kv21da55 is not working it is totally
HiPlease do not dessolder anything before a thorough test. You should first check the main fuse. If it is blackened the MOSFET switchinhg transistor is probably bad and need to be replaced. The test should then go on thorugh the output line voltage in search of shorted components. Only when the fuse is clean but open (interrupted) you can replace it and plug in the tv set and test.Be careful and follow safety instructions on dealing with high voltage section of tv set. High voltage is letal.I hope this will help you,Sully
9/27/2013 11:59:30 AM •
Sony FD...
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Answered
on Sep 27, 2013
Sony kv-21cl10E
check the color drive, and resistors that change value or open, check also the connections
9/22/2013 2:05:01 PM •
Sony FD...
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Answered
on Sep 22, 2013
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