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How to fix Samsung CS21C510CL CRT TV switch on but no picture and no sound only standby light blinking five times and then after few seconds it's starting again and again blinking and so on.

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  • Expert
  • 46 Answers

Hi .
You can try replacing the power supply card and the video card .sometimes the power supply section has bad capacitors that need replacement .

Posted on May 18, 2017

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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BMW Rider
  • 232 Answers

SOURCE: Sony 57 inch WEGA Projection TV

Hi, this is a very common failure, you need to replace 2 IC chips on your power supply board, marked on the top of the IC`s is this number: MCZ3001D you can purchase them here if you are very proficient at soldering & un-soldering, and the board has to come out of the tv to do this, you might want to call a tv man for this one, but it will fix your set, happy holidays, BMW Rider

Posted on Dec 01, 2007

  • 2336 Answers

SOURCE: No sound no picture, the stand by light blinks four times

If you have the above model, then the four blinks indicate a backlight failure. The back light inverter board might be defective or the voltage from the power supply (+24v) is low or missing.
Let me know if you require further assistance.

Posted on Dec 30, 2008

gopakumarg43
  • 75571 Answers

SOURCE: Sony KDL-46z4100 standby light blinking 12 time with few seconds gap continiously

12 blinks of standby light indicates 'Scanrate error'. You must have thorough knowledge in electronics to proceed. Actually, this is not a user repairable fault. it is very skilled work.

Posted on Jul 09, 2012

  • 44896 Answers

SOURCE: How to fix Samsung cry TV only standby light blinking five times and then the standby light off and no picture.

Could be power supply failure

Posted on Apr 06, 2017

  • 44896 Answers

SOURCE: How to fix my Samsung cs21c510cl CRT TV switch on but no picture and no sound but sometimes picture & sound is OK, what is the problem.

The power supply may be failing.

Posted on Apr 08, 2017

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How many times the standby light blinks at a time of switch on? Count it. These blinks are fault indications [codes]. Count it. If you wish to get more details about the blinking codes to JVC brand TVs check this site.

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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

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Hi, this is a very common failure, you need to replace 2 IC chips on your power supply board, marked on the top of the IC`s is this number: MCZ3001D you can purchase them here if you are very proficient at soldering & un-soldering, and the board has to come out of the tv to do this, you might want to call a tv man for this one, but it will fix your set, happy holidays, BMW Rider

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samsung pn64f8500 boot loop with evoulution kit 3000za installed I had perfectly working Samsung plasma ph64f8500 working fine with Samsung evolution kit 3000 ZA installed. Then we moved I took off the evolution kits so the movers would not knock them off. I powered up without the evolution kit installed accidently. Now both plasma are stuck in boot loop. They power up but go to the smart tv logo and cannot find the evolution kit. I read somewhere a long time ago that I needed to reset the evolution kit to a state where it had not been installed. The current issue is the Main Logic Board eeprom instructs the unit to boot correctly but it cannot find the evolution kit. If you boot without the evolution kit the system halts and indicates on the screen the evolution kit has been uninstalled and you must install it if you wish to view. If it could find the evolution kit one could go thru the menu to uninstall it correctly. One option is to manually reset the eeprom to remove the install instruction that boots looking for the evolution kit. I have been looking for the eeprom on the Samsung main logic board but I cannot download the logic board schematic. I cannot find the logic board number. The main logic board is BN94-0625C. The logic board has tow other part number references.• MFR Part Number 1: Samsung BN94-06205C • Board Number(s): BN41-01998A, BN97-06633G i have been researching the logic board IC Numbers and belive that IC 1701 is the eeprom that requires reset. The youtube videos for similar models indicate a eeprom that is listed as a part nmber for this samsung pn64f8500 unit as 24C512 and shows how to jumber 2 IC locations that will force the eeprom to reset to standard starup without the Evoution Kit 3000

Jul 16, 2018 | Samsung Televison & Video

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