Question about Sony FD Trinitron WEGA KV-34HS420 34" TV

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Wont power on

Hi I have a problem getting my tv to power on sometimes. I push power.. it tries to turn on...Then The standby light starts to blink fast and NOTHING

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  • nahoposn Sep 14, 2007

    Rondan Thanks..

    But Im clueless about tvs ..your solution was a little technical.. can you explain it in "TV for Dummies" fashion? PLEASE? THX

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Thers an open resistor near power supply secondary section,supply voltage to 5v and 12v to system control ic, or check the vertical ic for malfunction

Posted on Sep 14, 2007

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Posted on Jan 02, 2017

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1 Answer

TV WONT POWER ON


Hi does the TV have any standby light etc, if so power off at the wall and leave for 1 minute the power back on and watch the standby LED it may or may not blink try to power on if the light blinks this may be a fault code and you can search this up with the model number.

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My tv wont turn on by power button or remote. white light keep blinking.


How many times this standby/power light blinks at one time switch ON? Count it carefully. These blinks are fault indication, and known as blinking codes. From the number of blinks occur at one time switch ON; you can get an idea about the faulty circuit stage inside the TV. This will make repair easy. For more information, check the link http://electronicshelponline.blogspot.com/. If the blinks continues, and non-stop, the fault should be with its main system control IC, and with the memory IC.

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Are you certain the replacement power supply is good? A defective main board or power supply can cause this problem.

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My sony trinitron tv wont turn on and standby light keeps blinking


Hi
Blinking of standby light in Sony sets are fault indication. The number of blinks occurs at one instance must be counted. With that bumber I can reach to the fault section inside its circuit; sometimes to the exact fault point too. Just turn OFF the set, and turn it ON, and count the number of blinks at a time [do this atleast 3times and make it sure]; and inform me by Fixya. OK.

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KDF 50E2000 WONT POWER UP POWER LITE BLINKS RED 3 TIMES THANKS


Hi,

The Standby/Power light of the TV blinks when there is any internal malfunction in the TV.
The self-diagnostic function of the projection TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue. As per the two examples below, some of the issues may be resolved without the need for service.
If the STANDBY light flashes three times in sequence, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
If the STANDBY light flashes four times in sequence, the TV may be overheating. To resolve this issue, ensure that the back of the TV is well ventilated.

If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.

If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.

If the issue continues to occur, service may be required.


Thanks for using Fixya.

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1 Answer

Sony Trinitron Wega Standby blinks & the TV won't turn on


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://electro-medical.blogspot.com/
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.

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2 Answers

Standby light keeps blinking. tv wont turn on


If the TV goes off completely, then is usually a faulty power board.

If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

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if you now how to used soldering iron , resolder your tv

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Sony Triniton Wega Model KV 32HS510. After pushing the power button,the tv starts to power up, then the standby light blinks 7 times then pauses before blinking 7 times again. It continues to do this,...


This is usually an indication of a failure in the scan amplifier sections. When the scan amplifiers or high voltage sections fail, the main power supply will usually also require servicing.

It is very common that the fly-back and high voltage multiplier and also the horizontal output stage fails in these sets. Along with it, the power supply will usually require to be serviced. On rare occasions, the vertical deflection amp fails.

Jerry G.

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1 Answer

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uplug and open the cover and look for the red cable coming out of the picture tube. follow this red cable to a small board where you should see 2 black screws labled focus and screen. try turning these a notch and power on. it worked for some people but not for me...:(

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