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Won't turn ON. Found F601 fuse blown on power supply/inverter board. What's the most likely culprit?

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Emerson BA17F1F0102 Power Supply Repair Kit LC320EM2

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This Emerson BA17F1F0102 Power Supply Repair Kit LC320EM2 ... board. If the TVhas no power it is most likely because of a blown fuse and failure of other preceding components. ... I tested F601, Q600, R602, 608 and 611, and found them to be bad. ...Power Supply / Inverter Board - Joseph A. on March 4th, 2015.

Common TV Repair for Emerson, Sylvania, Philips ...

? 5:35
https://www.youtube.com/watch?v=nQHWrJJg4Mc
Oct 11, 2013 - Uploaded by Tampatec
... LCD TV repairs for Emerson, Sylvania, Philips, Magnavox,blowing fuses "no power" i recommend a TV service LCD repair kit at ... powersupply power-supply "power supply" powerboard "power board" part2 part 2 pt2 ...

What Causes a Blown Fuse in TV Sylvania LCD - YouTube

? 15:31
https://www.youtube.com/watch?v=4P_0aLDZgBY

Posted on Jan 02, 2016

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1 Answer

The color stay dark on the screen


I am assuming audio is fine, no picture.

Either the power supply has some bad capacitors in the 24 volt section that supplies the inverter board, or the inverter board has some bad capacitors.

You can confirm this with a flashlight held at an angle to the screen up close, you will see the screen image darkly.

It is also possible both boards suffer from cold solder joints- which just need to be reflowed with a small amount of fresh solder to get it the old solder to flow again.

If no picture and no sound, power supply board is likely the culprit with bad capacitors, a blown fuse, or bad solder joints.

Dec 31, 2011 | Samsung 225BW Monitor

3 Answers

LT 3751 change the power board still no picture could it be a fuse and what fuse


Hello Jason:
Check the inverter board for blown fuses in will be a micro surface mount fuse, if it is blown then replace the inverter board assembly. The inverter is used to light the back lights of the screen. Also check the supply voltage from the power supply to the inverter should be between 12volts to 30 volts.

Also you if the inverter board checks ok , then your problem lies in the T-Con board this board is at the top to the panel under a shield.

Oct 14, 2011 | Norcent Technologies LT-2722 27 in. LCD...

2 Answers

Have a 42" Tv that won't power up. Power to


The electrolytic caps need change out on the power supply or you can purchase a new remote at www.partstore.com

Sep 14, 2011 | Westinghouse W4207 42 in. HD-Ready LCD TV

1 Answer

TV won't turn on. Is there a fuse that needs replacing?


Good day!

When the TV is not turning ON it doesn't mean that there's a busted fuse inside although it have a possibility.There are a lot of causes to be considered.Like shorted transistors,leak capacitors open resistors and shorted diode.

Follow this D.I.Y procedures to find the exact problem of your TV.
  1. Remove the back cover of your TV.
  2. After that,find the power supply board.
  3. If you already found the power supply,plug-in your TV and power it ON.Check the input voltage of it,using multimeter (AC range).If the power supply have no input voltage the problem could be the power cord.Replace it.
  4. If the power supply have the input voltage,try to test the output voltage if have 5vdc for the system and logic supply,12vdc for the sounds and 24vdc for the back-light inverter.Use your multimeter tester (DC range) to test that.
  5. If the power supply have a voltage outputs such as 5vdc,12vdc and 24vdc and the problem is still there.The problem could be the main board.Replace it with the same type and model # because the main board is no very difficult to fix and its very sensitive.
  6. If the power supply have no output voltage or the voltage is too low,just ignore the step # 5 because the problem is not on the main board,its on the power supply board.
Check the following to fix the power supply board:
  • Fuse: Check the fuse if it is busted or blown.
  • Power transistor (regulator): Check the regulator if it is shorted or leak.
  • Resistor: Check the resistors specially the one that have a low resistance that near the power regulator.
  • Capacitor: Also check the capacitors if it is leak or bulging top.
NOTE: If you found any defective parts or components that mention above replace it with the same value,type and ratings.


Thank you and good luck.Please don't forget to vote and rate my answer.

May 08, 2011 | Televison & Video

1 Answer

I have a LG 37lc2d and it suddenly turn off and wont come back on, the stand by lights doesnt turn on either. i was wondering if its just the power supply? or how can i troubleshoot this my self to see...


There is a fuse on the power supply close to where the A/C is connected to the board. If the fuse is blown, look at the board and see if there are any burned components and or swollen capacitors. If there are bad components, I would suggest getting a new board.
If the board looks OK, disconnect the connectors from the board but leave in the A/C connector (this way you can isolate the power supply board), replace the fuse, and power up the TV.
If the fuse pops after the power is applied to the unit, then the power supply is bad.
If the fuse is still good, then power off the TV, connect on the main board’s connections, and power up the TV.
If the fuse is still good, then power off the TV, connect the inverters, and power up the TV.
If the fuse blows now, then the inverters and or the panel are bad.
A working power supply will create 5vdc for the main board’s stand by source voltage. This can be found on the power supply at the main board’s connector and it is labeled in black text.
I hope this information helps you.
Good Luck.

May 28, 2010 | LG 37LC2D Television

2 Answers

Acer monitor won`t turn on


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed ACER monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

May 24, 2010 | Acer 22" X223w LCD Monitor

2 Answers

Turn on and acer flashes on screen then goes black, sometimes if you press on/off many times screen comes on and is good for about a day


I found C34, C35, C36 and C38 (all 100uF 35V) caps with their bottoms blown out due to over voltage. I suspect Q4 and Q6 to be the culprits. They are both short circuit. F2 found open circuit.
All of the above are found on the backlight inverter PCB.
My problem is sourcing Q4 and Q6. No data available on these devices.
Any help would be appreciated.....

Nov 13, 2009 | Acer AL2416W 24 in. LCD Television

1 Answer

When i switch tv on, it shows picture for 5 seconds then goes into standby. the tv is a vistron ltm-3271e lcd


The problem is associated with the power supply that cannot run under load. The showing of picture for a brief period of time indicates that the main board, ballast, inverter and panel drive are all OK. The unit turns on but the power supply cannot sustain the power requirement of the unit and shuts down.
The usual culprit on the power supply are blown or bad capacitors. Check the power supply for such capacitors. If no apparent damage or defect is found, replace the power supply.

Nov 07, 2009 | Televison & Video

1 Answer

Dead from cable surge from blown Time Warner splitter.


On that Sony the only glass fuse would be on the primary side where the A.C. cord enters the TV. If it's blown then you have a bad rectifier diode or some other shorted power supply component.

Mar 22, 2007 | Sony FD Trinitron WEGA KV-20FS100 20" TV

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