Question about Sony FD Trinitron WEGA KV-36XBR800 36" TV

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Standby blinks seven times

Need to check power supply regulation and horizontal circuits, how do i go about this

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There are many details involved to check the set. The process is beyond the practicality of an email.

You will need the service manual, a DVM, and depending on the circumstances you will need a scope.

The service manual may still be available from Sony.

Most of the time in these models of set, this type of fault is a failure in the scan amplifier sections; mainly in the horizontal output section. If this is the case, there may also be some damage in the power supply.


Jerry G.

Posted on Jan 09, 2009

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Sony trinitron standby light blinks 7 times. no picture. light continues to flash. tried hard reset. no picture. model sony wega kv-36hs510.


Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
To get more details, http://electronicshelponline.blogspot.com/

Nov 14, 2013 | Standard (CRT) Televisions

1 Answer

Sony trinitron kd-34xs955 standby light is blinking 7 times


Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
As you can see here, seven blinks of standby light is due to some over voltate at the final anode of the picture tube. This is a protection process that going on insde the tV circuits, to prevent more damage to other comnponents on board. The most common cause for this is with the main power regulator out voltage itself. If any way, it ahs exceeded 135VDC, this kind of fault will occur. Check the main power regulator section circuit for any damaged component/s. Replace all the small electrolytic capacitors there. Visit the site named 'Electro-help' for more details. Check this LINK and select the site named above. View it in 'Flip card' option, which can be selected from the drop down box menu at the left top corner or the display window. It will make search easy. Some times, the ads attached with each posts might help you to find the availability of spare parts. There are more than 550 posts to different brand TVs. Blinking codes and details are there.


Aug 09, 2012 | Sony FD Trinitron KD-34XS955 34" TV

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RED FLASH AND TV URNS OFF


  • Unit is dead, No blinks - Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).
  • Continuous blink once a second, no pausing - No reply from the jungle IC301 (data bus is busy, shorted to ground, or held high), IK video path is defective.
  • One blink - not used for the self-diagnosis
  • Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.
  • Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.
  • 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.
  • Six blinks - No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.
  • Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
  • Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.

  • Nine blinks - Replace D 6116 and D 6301 on the "G" board, do not resolder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 (negitive).
  • Ten blinks - Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the " D" board. If the transistors are bad, check R8051 and IC8005, also on the "D" board.
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Dec 06, 2011 | Sony FD Trinitron KD-34XBR960 34" TV

1 Answer

Our tv turns off as soon as we turn it on. the red light blinks 7 times


Seven blinks = High voltage shutdown (overcurrent protection). The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits, otherwise send the TV to a workshop for a quote on likely parts and labour costs, then make a decision afterwards about whether it is economical to repair or not.

Usually it is either the flyback transformer, the tuning capacitors in the collector circuit of the horizontal output transistor(s) as well as the transistor(s) which could be faulty. These parts should be replaced at the same time.

Short-circuit horizontal output stage - hence the 7 blinks error code from the standby LED.

Mar 19, 2011 | Sony FD Trinitron WEGA KV-34HS420 34" TV

1 Answer

I was watching the news and it shut off on its own and will not turn back on. What do i need to check?


If you include how many times the standby light flashes, that will give a fault location. Not to worry, here is a list.
Hope this helps.
  • Unit is dead, No blinks - Problem in the standby power section. Might check fuse, R607, Q601, IC601, R612 and VDR601 (should show open).

  • Continuous blink once a second, no pausing - No reply from the jungle IC301 (data bus is busy, shorted to ground, or held high), IK video path is defective.

  • One blink - not used for the self-diagnosis

  • Two blinks - B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.

  • Three blinks - B+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.

  • 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.

  • Six blinks - No Horizontal (H STOP), no raster, goes to the blinking self-diagnosis function immediately. Check C515 & 516 and the jungle IC, IC206.

  • Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
  • Eight blinks - Problem with the audio (AUDIO), unit goes to standby and blinks the self-diagnosis code. Check IC406 audio amp, PS401, and 402. On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.
  • Nine blinks - Replace D 6116 and D 6301 on the "G" board, do not resolder as this will fix the problem temporary. Or Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing, then change the switching regulator on the "G" board or check connections. Make sure the regulator is -12 or -13 (negitive).
  • Ten blinks - Check Q8014 and Q8013 for shorts, leakage, or bad solder connections on the " D" board. If the transistors are bad, check R8051 and IC8005, also on the "D" board.

Jan 23, 2011 | Sony FD Trinitron WEGA KV-27HS420 27" TV

1 Answer

The tv standby light blinks 7 times then repeats. What do I do?


Dear John,
Welcome to Fixya
Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits. I think it helps
Chandrashekhar

Dec 27, 2010 | Sony FD Trinitron WEGA KV-34HS510 34" TV

1 Answer

Standby blight bliks for seven time tv wont turn on


Hi,
Seven blink indicates that there is a high voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.

Hopw this helps .

Jan 23, 2010 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

1 Answer

Sony TV will not turn on. The standby light flashes 7 times. Whats wrong?


Hi,
Seven blink indicates high voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.
Also it can be due to bad flyback.

Hope this helps.

Thanks for using Fixya.

Dec 08, 2009 | Sony Standard (CRT) Televisions

1 Answer

The standby botton blink 7 in my sony trinitron


Hi there,

Seven blinks - High voltage shutdown. The high voltage has exceeded 33k and the unit goes immediately into safety shutdown. Check power supply regulation and horizontal circuits.

May 07, 2009 | Sony FD Trinitron WEGA KV-36XBR800 36" TV

1 Answer

Sony wega tv blinks seven times and does not come on


seven blinks means high voltage shutdown it gone into safety mode you need to check power supply regulation and horizontal circuits


shaun

Jan 16, 2009 | Sony FD Trinitron WEGA KV-36HS420 36" TV

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