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Sony KV32FS120 does not power up indicator light blinks I detect no voltage across relay. Do you have tips on this also is it possible to email me the schematic of the power supply cirrcuit. hoycemitchell@yahoo.com Bweddings@hotmail.com

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  • bweddings Jul 28, 2010

    Sony KV32FS120 does not power up indicator light blinks 9 times I detect no voltage.I hve checked the circuit board for 200 volts set will not engage only stand by voltage present

  • bweddings Jul 29, 2010

    i HAVE CHECKED ALL COmPONEnTS IN THE horitizonal output section and the power circuit I have the 24 volts for stand by could there be components in this section that checks good but be faulty. What could cause this to blink 5x on one set and 9x on another set what could this be on the Sony KV32FS120.

  • bweddings Jul 29, 2010

    I have two Sony KV32FS120 one blinks 5x but will not engage the other blinks 9x but will not engage I checked all conponents in the horizitional and power supply I only get 24 volts in the standby mode.It is not ckhecking for 200 volts that is required

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Here is the service manual for this tv at the following website link. Unfortunately I can't get you a free copy, but if you want one, then you can register at this site and download it after paying for a subscription, the site says that it has your specific manual which would be very helpful if you are able to read schematics http://www.nodevice.com/manual/sonymans/manual3534pdf/get5050.html# Since you seem to know a little about electronics, this will be a good start for you. I can answer questions that you may have, just give me time to respond to any that you post as I am not on here 24/7.
Otherwise what I can help you with is the blinking indicator light. It most likely has a pattern which is an error code. Can you please post the pattern for me (how many blinks in a row) Thank you
Let me know what you find. Benjamin

Posted on Jul 29, 2010

  • bweddings Jul 29, 2010

    Can you tell me what the indication is if there are 5 blinks then a 4 or 5 second pause then repeats itself this set will try to fire up but does not but the voltage will not hold.





    The other set has rapid blinks 9 times with a 4 to 5 second pause then repeats. this set only have voltage in the stand by mode and never tries to fire up.



    Both are sony's KV32FS120 Can you help with this problem

  • bweddings Jul 29, 2010

    the set when the power button is initial depressed voltage tries to come up but shut downs as though the shut down circuit has been activated then the indicator light begins to blink 5 times rapiddly pauses for 4 to 5 seconds then repeat continously.



    the other set when power button is depressed no other voltage is indicated to come up IE.. regulator high voltage etc.only stand by voltage is presentthat is the 24 volts 5 volts it then begings to blink rapidly 9 times then pauses for 4 to 5 seconds then repeats.



    Both sets are sony's KV32FS120

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Hi,
How many times power indicator/ standby light blinks with 3 seconds long pause?
Click HERE to download service manual free copy that has all schematics, parts list info, I hope that will help you to fix this tv.
Let me know if you face any trouble in downloading service manual.
Thanks.

Posted on Jul 27, 2010

  • 6 more comments 
  • bweddings Jul 27, 2010

    The KV32FS120 blinks 5 times stop and then starts to blink again

  • Shahid Electronics
    Shahid Electronics Jul 27, 2010

    5 times standby light blinks.
    Check +200V on circuit board that fixed on tube end. You can check these volts before tv goes to standby/ shuts off.
    If 200V are fine then adjust Screen Volts as control knob is located on flyback transformer. Upper knob is focus control and lower is screen control.



  • bweddings Jul 27, 2010

    Solution does not apply for this set the relay does not engage so you can not get 200 volts or any voltage other than the stand by voltage.

  • Shahid Electronics
    Shahid Electronics Jul 27, 2010

    You need to push power or channel button on tv remote to turn it on to test voltage, tv will go to standby in few seconds but you can measure +200V on crt board.
    I'm Sony tech and do this kind of job daily.



  • bweddings Jul 27, 2010

    used the remote now set blinks 9 times, set does not come on only voltage that comes up are the 24volts and 5 volts but relay will not engage . Standby voltage present but regulator voltage will not kick in.

  • Shahid Electronics
    Shahid Electronics Jul 27, 2010

    Did you downloaded service manual from link I provided you earlier?
    Service manual has error codes details up to 5 blinks. Unplug tv from wall socket for minute, replug back in and turn it On.



  • Shahid Electronics
    Shahid Electronics Jul 28, 2010

    ok, no problem.

  • pragmaticjim Sep 24, 2010

    I also have a kv-32fs120 that blinks 9 times. The standby and 24v are present.
    When I pull pin 66 of ic001 down, the relay clicks, and I can turn the TV on with the power switch. Everything seems to work ok, but I don't run the TV that way for more than a few seconds at a time.
    I am not looking forward to changing IC001. Any suggestions on what to check?

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I have a SONY kP51WS520 thats stuck in standby mode..it blinks about 10 times


In most cases the standby light might blink with different rapidity to indicate a fault relevant to the processor. It is possible that most of these indicate that there are errors in the processing section. Since there is a possible short or leak in the circuit the output driver section can take in huge current to trip the SMPS or from advice from the micro processor. Remove the power plugs and make sure that high voltage sections are discharged of the potential stored in capacitors. Look for visible signs of leak or of busted capacitors. Look for bulged capacitors or damaged components- burnt or busted. Use a multi-meter to check the continuity or shorting in components, if so detach from circuit and test. If the voltage builds up and the set power ON and then shuts up then the suspected section must be checked in detail.

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In most cases the standby light might blink with different rapidity to indicate a fault relevant to the processor. It is possible that most of these indicate that there are errors in the processing section . Since there is a possible short or leak in the circuit the output driver section can take in huge current to trip the SMPS or from advice from the micro processor. Remove the power plugs and make sure that high voltage sections are discharged of the potential stored in capacitors. Look for visible signs of leak or of busted capacitors. Look for bulged capacitors or damaged components- burnt or busted. Use a multimeter to check the continuity or shorting in components, if so detach from circuit and test . If the voltage builds up and the set power ON and then shuts up then the suspected section must be checked in detail.

The processor must have the +5 voltage to the function properly , the +B and secondary voltages also must be checked to infer the fault. Trace with caution and in running through the signal path , circuit trail.

Check for tips to check the SMPS unit:

http://www.fixya.com/support/r5826301-working_switch_mode_power_supplies

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I have sony model no kv-bm14m40 it blinks two times.The voltage on the CRT base which was supposed to be 200 is 235.what do I have to do to solve this problem. I appreciate any help JJ


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* 4 times, Diagnosis: Vertical deflection stopped. Possible causes: +- 15V is not supplied. (D board), IC8003 is faulty. (A board) Symptoms of the problem: TV has entered standby state after horizontal raster, Vertical deflection pulse is stopped, Power line is shorted or power supply is stopped.
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* 7 times, Diagnosis: Horizontal deflection stopped. Possible cause: Q8035, 8038 is shorted. (D board)
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If you would like to attempt a DIY, you will need a service manual to guide you. You can find one here:
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However, be aware that there are voltages inside your TV set that can kill, even if unplugged.



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