Question about RCA 27F650T 27" TV

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Help me to fix the TV

It's only 3yrs. when i turn on TV, only the 1/2" vertical blue line came up on the screen and gone by it self. i hit the back of TV and sometime worked,but later gone again.

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Try to inspect for a loosed connection in the printed circuit board especially in the horizontal circuit. This includes the ic for horizontal oscillator, transistor for horizontal driver, horizontal output transistor and the high voltage section which includes the flyback. Pls. observe safety when dealing with these ciruits coz it deals with high voltage! Good luck!!

Posted on Apr 22, 2008

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1 Answer

Why comes white vertical line on my t.v?


Horizontal scan output fault. Check the connections to the deflection yoke from the main board. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

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My toshiba tv screen will tunr on and the picture will just be a line down the middle. and then it will just shut off and the red light on the sensor will blink and im unable to turn on again unless i...


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Apr 03, 2010 | Toshiba 20AF45 20" TV

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NO PICTURE BLACK SCREEN AND A BLUE LINE ACROSS SCREEN.


The vertical circuit has failed. This can be as simple as poor connections on the pins of the vertical IC or a defective IC. If you can solder, you can fix this yourself. Let me know if you wish to attempt the repair and I'll provide details and instructions.

Dan

Apr 01, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

Tv screen tv


Good Day;

Shutdown at Power Causes: Cause #1 This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input/device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source) 1. SELF- DIAGNOSIS INDICATE X-RAY. CHECK FOR A SHORTED IC5A03 PART # 270P704010 AND AN OPEN R5A73 82K ¼ WATT OFF PIN 2 OF IC5A02 ON THE MAIN PCB. 2. SELF DIAGNOSIS ERROR INDICATES SHORT PROTECT. CHECK FOR OPEN FUSES F9A04 AND F9A05 PART # 283P043090 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT. 3. SELF-DIAGNOSIS INDICATES SHORT PROTECT. CHECK FOR A SHORTED IC4B01 PART # 270P261020 (VERTICAL OUTPUT) LOADING 24-VOLT SUPPLY LINE. LOCATED ON THE MAIN PCB. Good Luck, big IRISH.

Aug 31, 2008 | Mitsubishi WS-55807 TV

1 Answer

Mits WS-55807 blue screen, steady green light no video


Good Day, luap356;

Look for fluid on the PCB's, if don't see any try this:

This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input/device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source) 1. SELF- DIAGNOSIS INDICATE X-RAY. CHECK FOR A SHORTED IC5A03 PART # 270P704010 AND AN OPEN R5A73 82K ¼ WATT OFF PIN 2 OF IC5A02 ON THE MAIN PCB. 2. SELF DIAGNOSIS ERROR INDICATES SHORT PROTECT. CHECK FOR OPEN FUSES F9A04 AND F9A05 PART # 283P043090 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT. 3. SELF-DIAGNOSIS INDICATES SHORT PROTECT. CHECK FOR A SHORTED IC4B01 PART # 270P261020 (VERTICAL OUTPUT) LOADING 24-VOLT SUPPLY LINE. LOCATED ON THE MAIN PCB. Good Luck, big IRISH.

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1 Answer

Polaroid ttm-2401


To me, sounds like a picture tube issue. horizontal / vertical controls don't fix it. then its dead.

Jun 22, 2008 | Polaroid TTM-2401 TV

3 Answers

Blue line on TV screen


Hi

Your TV has a vertical fault. Based on your description, chances are that it is the vertical IC that went bad. It is relatively a simple repair job and any person with basic familiarity with electronic components and circuitry and soldering would be able to do the job. Should you venture to do a DIY please be reminded of the standard safe practices involve when working inside a TV unit.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

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65 INCH PROJECTION SCREEN IS SUPER BRIGHT


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SVA E2939FQU


Sure!!. TDA 78041 or Tda 78040 I can help you, let me know model number tv.

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