Question about ViewSonic VX900 19" LCD Monitor

3 Answers

Blown Fuse Value


It appear my inverter board on my Viewsonice VX900 blew a fuse (F2 is th ref des). Is there a way to figure out what value it is?

Posted by on

  • 5 more comments 
  • bpislife Dec 04, 2007

    The inverter board is the DAC-12C024. This is a Delta inverter board Rev A0

  • stuwert Dec 26, 2007

    same fault on mine. i shorted out the fuse, works fine now.

    Anyone know the value of f2?


  • bpislife Jan 10, 2008

    So here is the deal. The ref Des F2 means that it is in fact a fuse, and chances are since the number next to the F is 2 that means that there is a good chance there is an F1. As it turns out, the inverterboard in this monitor has to identical backlight circuits. One powers the backlight at the top of the screen and one at the bottom. The bottom circuit had the F1 fuse. As it turns out the fuse was fine and I could clearly read the letter N on top of the fuse. As it turns out, the fuse was made by littelfuse and the N indicates that the fuse is a 2A, 63V fuse. I purchased a bunch from digi-key and it works like a charm. I would NOT recommend shorting the pads that the fuse was once connected to, together. The fuse could have popped for a reason, and shorting the fuse could cause other components to fail.

    Again F2 is a Ref Des not a value. The value of the fuse is written on it. If it is anything like my monitor, there were two fuses for the two circuits and it had the Value N.

    N is a fuse made by littelfuse in a 1206 package. It is a 2A, 63V fuse. You can order it from places like

  • bpislife Feb 16, 2008

    Sure is F1457CT-ND. I find using digi-key's online site is much easier than trying to use their catalog.

  • claron May 02, 2008

    I have this same issue with a Viewsonic VP201b. I checked the same fuse as in the VX900 and it seems to be bad. The fuse is also labeled F2, however the one in the VP201b says FN on top of it. Does anyone know the value or part number for this?

  • e-fix May 19, 2008

    I had the same problem on my VX900. Replaced F2 and it works fine now. I have spare fuses (FN = 2A 63V) if anyone is interested I can send some for $5.

  • rarcompany Jan 11, 2009

    I had the same problem with my VX900. Removed the backlight inverter and then read on-line comments about fuses. How can I tell if it is the whole board or fuses? Thanks!



3 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer


The top left inset photo shows the two fuses circled, F2 on the left.

Posted on Jun 18, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Bpislife, do you happen to have the digi-key part number for the fuse? I downloaded their catalog but it's a bit daunting for people not well-versed in electronics.

Posted on Feb 15, 2008

  • ZemU Feb 17, 2008

    bpislife, thanks for the reference number. Gosh, those fuses are SOO small. I tried checking continuity across F1 and F2 with an ohmmeter; sometimes I get continuity, sometimes not, depending on exactly where I wiggle the probes around. In any event, I don't think I would be able to change the fuse even if I were sure that was the problem. I've never done surface-soldering before, and especially on parts so small. Are you an electronics technician?
    I'm still not even sure that the inverter is the problem with my monitor and not the CCFLs. I hate to spend money replacing the inverter if that might not even fix it.



Where is F2 located?

Posted on Jan 10, 2008

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

What is value of fuse solder to board?

Very vague question. Make? Model? could be 2 to 25 amp. Be sure that the power is un-plugged for your safety.

May 14, 2016 | Televison & Video

1 Answer

One of the tiny fuses in my Viewsonic VX900 monitor has blown. What is its part number, and where can I purchase a replacement? In addition, if I have to replace the entire inverter board, what is its...

I replace the surface mounted fuse with axial-lead fuse, PICO fuse made by LITTLEFUSE. You can try using a 1 Ohms 1/2 watt flame proof resistor in place of the fuse, if the resistor get real hot and burnt up then it may have shorted Transistors or transformer. You can get the number of the board and go to to see if he has the inverter board in stock.

Sep 03, 2010 | ViewSonic VX900 19" LCD Monitor

1 Answer

Have an old view sonic vx900 (~5yrs old). When you

Check the fuse on the inverter board and also verify it does have have 12vdc feeding the fuse. Worst case will be the lamps, power supply caps look OK?

Jan 18, 2010 | ViewSonic VX900 19" LCD Monitor

1 Answer

Hi, My screen blacked out, However If I press the on /off button, my current page will show perfectly for a half a second & gop black again. I can repeat this overe & over.

These have age related problems on the inverter board which lights the 4 bulbs
I repair these regularly through ebay.
Most common cause is a blown fuse on the inverter board, sometimes that is caused by bad capacitors or transistors. Usually it's just from age and heat.
Fuses are marked F1 and F2 and located on each side of the white large plug that feeds the board. These can be checked with continuity meter.

Nov 17, 2009 | ViewSonic VX900 19" LCD Monitor

1 Answer

Does not heat

problem is the fuse to the magnatron has blown or the magnatron needs replacing remove the outer cover three or four crosshead screws you'll see a pc board with a white fuse on board try changing it read th fuse value on fuse base don't connect the mains plug with the cover off.

Oct 28, 2009 | GE Spacemaker JVM1640SJ Microwave Oven

1 Answer

Olevia 42" lcd tv won't turn on.

check your power board not the inverter board. Caps, diodes usually go first. get them replaced with a higher voltage capacitor, same value (1000 uF 15v with a 1000 25- 35v is ok)

Jan 19, 2009 | Vizio L32 32 in. LCD HDTV

1 Answer

Fuse value?

When you say value, do you mean function or specs?

Aug 04, 2008 | IBM ThinkPad T40 2373 Notebook

4 Answers

Need new power/invertor board for Acer AL1711

R1 will be blown, replace it with a 10 ohm resistor. Also replace C6 and C22 with 220uf 25v Capacitors.

Dec 11, 2007 | Acer AL1711 17" LCD Monitor

1 Answer

Fuse location on tv

a fuse is a small glass tube about 3/4" to 1". it is located near the end of the power cord inside the tv. it is located in the power board supply circuit. there are several reason why fuse blew up. 1. sudden surge current/voltage in your area 2. shorted in either power supply or horizontal deflection circuits. when replacing fuse, be sure to change it with the same value. but if after replacement has been done and the fuse blew again, there is a short in the circuit as stated in reason no. 2. refer to a qualified service technician if you are not inclined with this job. good luck!

Feb 12, 2007 | Panasonic CT-32HXC43 32" TV

Not finding what you are looking for?
ViewSonic VX900 19" LCD Monitor Logo

Related Topics:

1,329 people viewed this question

Ask a Question

Usually answered in minutes!

Top ViewSonic Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18420 Answers

Cindy Wells

Level 3 Expert

5306 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a ViewSonic Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides