Question about Toshiba 37HL67 37 in. LCD HDTV

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Toshiba 37HL67 has a series of 3 blinking lights on power up. When TV turns on the screen will show up normally, but goes out shortly there after. Power down, smack the top, power on, comes on like it

I replaced the PCM board

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These 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://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience. If blinks continue without any pause, the main board is faulty.

Posted on Dec 16, 2014

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TV won't turn on. flashes a series of 5 red lights instead of turning green


Usually Sony and LG Blinking Codes are the same. Here is what I have.
  • Unit is dead, No blinks - Problem in the standby power section. Might check fuse,
  • 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,
  • Four blinks - No vertical Deflection (V STOP), Screen goes to a single horizontal line then the video signal muted.
  • 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. 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.
  • 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.
  • Nine blinks - Panel Module Error or Thermal Error. If it is intermittent 9 blinks, meaning sometimes the TV comes on and other times you get flashing 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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1 Answer

Ive got a toshiba wlt66 67 series and the dtv doesnt work cant even bring up the menu it comes on for 1 second then goes off again


Youhave bulged electrolytic caps on the power supply module that needs replced, or just purchasea power supply at www.partstopre.com

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2 Answers

My toshiba tv doesn't turn on and there is no stand by light i have try moving the pulls round and given it a new fuse btu it will not turn on


Look at one of the power supply output connector pin, there should be 5vdc all the time the minute you plug the TV into the wall outlet, if you do not have the standby 5vdc, nothing else will work. No sign of burnt parts, bad capacitors? You can get parts here: http://www.shopjimmy.com/catalogsearch/result/index/?q=Toshiba+37HL67+&p=2&stock=all
Please post feedback what you find.

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1 Answer

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7 blinks is the upper and lower scanning boards and also the y-sustain drive pcb.go to
encompass.com to see if parts are available and how long it will take to get the part.

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1 Answer

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you might have to reset the code on the remote or do a code search

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1 Answer

Toshiba 32A32 won't turn on


just fixed one with that problem it was the vertical output ic Q301
that was shorted. try wicking it out. it is a LA7833S.
Postings say to be sure to use the Toshiba part

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2 Answers

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my screen will turn on right after unit is plugged in and stay on for a short period of time, then it shuts off and the red light near the power button blinks and teh tv will not turn back on. there might be problem of loose contact in power supply Thanks

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