Question about Sony FD Trinitron WEGA KV-21CL10 21" TV

1 Answer

When i open my tv sony trinitron it will open only for five min and it automaticall off and cant open until next day..what is the problem?

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Sony Master
  • 17,129 Answers

You have a fault in the power circuit which triggers the power to switch off. this could be possible in the poweer cirrcuitt and hence you must be able to trace this out. Open the set and using a heater blow hot air to the power circuit. this should be done when the set is cold and maybe the fesh day. if the set comes does not come on, then you have some semiconductor/electrolitic capacitors which are defective or weak. change them one by one in this circuit after using a meter to test the voltage. If +b is absent then the freq trigg for the smps is absent, check on the optocoupler/ the transformer solderings. Attempt to service only if you familiar with electronics and power related electronics.this could be dangerous if not aware of the voltages. Hope i could help. Good day

Posted on Jul 07, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

No listing of 3 digit codes for Sony Trinitron, RCA universal rem


  1. Turn TV on.
  2. Press and hold TV button and Power button until light stays on.
  3. Release both buttons.
  4. Aim remote at TV and press the power button every 5 seconds until TV turns off.
  5. Press stop button at bottom of remote.
Lone99star

Mar 14, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Sony wega tv wont turn on


sony kv-36hs500 no enciende y parpadea el stand by

Feb 22, 2009 | Sony FD Trinitron WEGA KV-36HS510 36" TV

1 Answer

Cant change the bright of the sony trinitron (FROM THE REMOTE )


this is a problem with the sony tv set not your remote.
you can have a tech turn up the HV seting on the botem of your fly back and at same time have him do a diagnostics on the tv set.

Jan 09, 2009 | Sony RM-Y173 Remote Control

1 Answer

Sony wega trinitron won't turn on


  • Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted. Check IC1509, Q1505
  • Five blinks - AKB circuit (automatic kine bias), the timer/standby indicator blinks for about 30 seconds then goes to the self-diagnosis function. Something is wrong with the video. Check video out, Q705, 732, 761 and other components on the C board, also check Q218, 219, 220 on the A board. In addition, unit could be in IK blanking, try turning up screen slightly.
  • and some times the eprom ic is fulty ...
  • try to unplug your tv from the main power for 5 hours then press the power button and keep pressing for 7 seconds then release ,if this do not work ,you should take your tv to a qualified person
  • i hope this helps ..
  • Jan 01, 2009 | Sony FD Trinitron WEGA KV-36HS500 36" TV

    1 Answer

    Sound goes off


    if this issue persist you need to go to one service authorized

    Dec 10, 2008 | Sony FD Trinitron WEGA KV-32FS120 32" TV

    1 Answer

    36" sony trinitron


    Hi

    you have defective starting capacitor! that is located in power section! or in the H.O.T. Area.

    Thanks!

    Sep 04, 2008 | Sony FD Trinitron WEGA KV-36FS120 36" TV

    1 Answer

    Tv, takes 30 minutes to open after switch on


    resolder all cracked solders on the jungle ic.do you have any experience in electronics?

    Aug 13, 2008 | Sony FD Trinitron WEGA KV-20FS120 20" TV

    1 Answer

    SONY KV-32FX20U


    I suspect you crt tube is going and is most likely not worth fixing

    There are things you could do a tv service shop could rejuve your picture tube and adjust your screen voltage.

    sometimes that does not work

    I would start looking for another tv



    thanks doctor video

    Apr 14, 2008 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

    1 Answer

    Flashing Screen


    ok, the problem you may be having is bad solder connections on the vertical deflection IC. resolder them or have a tech do it. also check for bad solder on the 9 volt regulater IC as well. these problems are common to older sony sets.

    Feb 29, 2008 | Sony FD Trinitron WEGA KV-32FS100 32" TV

    Not finding what you are looking for?
    Sony FD Trinitron WEGA KV-21CL10 21" TV Logo

    Related Topics:

    51 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Sony Televison & Video Experts

    kakima

    Level 3 Expert

    102366 Answers

    The Knight
    The Knight

    Level 3 Expert

    74106 Answers

    Jerry Greenberg
    Jerry Greenberg

    Level 3 Expert

    1667 Answers

    Are you a Sony Televison and Video Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...