Viewsonic VX2235wm-5 _ Will not power up.

[hairykiore]

Hi..This is my first post ? I have a ViewSonic VX2235wm monitor that I purchased as faulty although there was life??...I had noted the extensive postings especially on this forum and thought I might just be able to fix it ....However I am stuck at the first hurdle ...When I plugged it in, the unit appears to be completely dead IE there is no power light etc ..so I am on the back foot immediately..I would welcome any advice on what I should initially look for as it seems to me that I need to get the unit to show me something before I can then use all the great information available here on past postings and try and get it working...Thankyou

[selldoor]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Welcome to the forum- Please update your mains voltage in your profile.
We can help a lot more if you please post good clear pictures of the whole chassis, and then pictures of each board, front and back and close up of connectors, (max resolution 2000x2000 and 2MB) using the manage attachments button, which is found by clicking "go advanced" under quick reply.
Please do not post inline and offsite as they slow down the loading of pages.

Example
DELETED SEE NEXT POST ( Dont know what happened - demob happy going to Malta for a week

It will be useful if you can say what the supposed fault was and a bit about yourself - skills tools etc.

Test the lead on something else
Try another lead that you know is ok
Look for fuses on the boards when you take set apart and test them.

[retiredcaps]

Re: Viewsonic VX2235wm-5 _ Will not power up.

The link that selldoor provided is incomplete for some reason. We want the picture composition to be like this.

https://www.badcaps.net/forum/showpo...94&postcount=1

[budm]

Re: Viewsonic VX2235wm-5 _ Will not power up.

More likely to be bad caps as shown here: There are more than one version of this model.
http://s807.photobucket.com/albums/y...nic%20VX2235W/

http://s807.photobucket.com/albums/y...%20VX2235WM-3/

These VX series are cheaply made, sorry I have too many pictures to post here.

[hairykiore]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Hi .Thankyou for your prompt replies ...Hopefully I have provided my info as asked...I actually purchased the monitor for a minimal cost on the online auction site here in New Zealand...Here is what the Seller stated...<<<<ViewSonic 22inch LCD Monitor
Bought this 2 yr ago however it just stopped have plugged in twice since then, went one time and not the other.
Have just bought a new one.
Don't know what is wrong but someone may be clever and be able to fix, hence $1 auction
Note Upper Cable holder on the rear is broken .....>>>>

I have not as yet taken the back off but will be setting a work table up for this tomorrow ..Hopefully I can provide photos etc with a camera I have only recently bought but it may take me a few days to get everything done ...Thanks Ron

[hairykiore]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Hi..I have taken the stand etc off and have just 3 screws to remove to enable the back to come off...Its night time here so hopefully tomorrow is a nice sunny day and I can take the back off and do an inspection in natural light...and of course take some photos ...Ron

[hairykiore]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Hi..I have finally got my first photo??..transferred from my cameras internal memory to an SD card and to my computer...and I have now attached it to this reply..I hope I have processed it correctly ,if not please advise...Going by what I have read .. I now have to remove the cover and take photos of the circuit boards etc inside so will do this tomorrow ...The camera will be a problem for me for a couple of days but I am quickly learning its workings etc...Thanks https://www.badcaps.net/forum/images...s/dunno.gifRon

[hairykiore]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Hi..Can anybody please advise me on removing the inner cover over the circuit boards (seen in the middle of my photo attached to my previous post..)...I have removed 4 screws but I note there is a considerable amount of resistance to my trying to lift if off (which I understand its supposed to do)....I just want to ensure that I do the right thing here... Thanks Ron

[retiredcaps]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Take out the 6 sided bolts on the VGA and DVI cable. There 4 in total. You can use a regular adjustable wrench to unscrew them.

[hairykiore]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Thankyou..Amazing that I found a site informing one how to take the cover off yet the VGA and DVI bolts were not mentioned....There is still resistance at the power socket end so will take the two screws out there and see what happens..Cheers Ron

[hairykiore]

Re: Viewsonic VX2235wm-5 _ Will not power up.

OK..Got it off..Will take pictures tomorrow as its early evening here...and insufficient light..Thanks Ron

[hairykiore]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Hi ...Here are my pictures ..I hope that they are sufficient...The capacitors ( to me ) look alright ...Now as far as skills go ..well at 68 I have learnt how to solder etc and have made the odd electronic project but I do not understand electronics although I have tried...I have a couple of cheapo multimeters which I can use given precise instructions..I see no fuses in this unit unless they are hidden?Thanks Ron

[retiredcaps]

Re: Viewsonic VX2235wm-5 _ Will not power up.

1) Your fuse is right by the AC plug. I think it is labeled F100. With power off and lcd unplugged, a good fuse should measure 1.0 ohms.

Instructions on how to measure a fuse is at (section 3)

https://www.badcaps.net/forum/showpo...4&postcount=19

2) On the power board, there is likely a SMD fuse on the backside labeled F200.

3) If both fuses are good, then set your multimeter to 20V DC. Put your black probe onto a ground screw. Put your red probe on the connector pin between the two boards that is labeled +5V. What is the reading?

[hairykiore]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Thanks again for your help...You state that my Fuse is right beside the AC Plug ....Is this on the underside of the circuit board as I cannot see anything that is identifiable to me as a fuse on the top of the board..Ron

[Jasgriff]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Hi Ron,

The fuse with be labelled on the board with an 'F'. There is one on the top near the socket and possibly one underneath.

[lipyphil]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Thanks again for your help...You state that my Fuse is right beside the AC Plug ....Is this on the underside of the circuit board as I cannot see anything that is identifiable to me as a fuse on the top of the board..Ron

Check close to or beneath the ground wire at the AC plug. The white paste might be covering it. Or check the back (green side) of the power board and observe close to the AC plug. The fuse starts with F.

[budm]

Re: Viewsonic VX2235wm-5 _ Will not power up.

The fuse is the small black rectangular box on the left side of the AC inlet, it is soldered in fuse.

[hairykiore]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Thanks...My biggest problem here is my eyesight ???..Again I will wait till tomorrow in daylight and use a headband magnifyer ...Although by taking a photo I can see everything far better....I just wonder if the fuse shows in the blown photo attached ...Thanks

[budm]

Re: Viewsonic VX2235wm-5 _ Will not power up.

Please see the PDF for the fuse location.

[retiredcaps]

Re: Viewsonic VX2235wm-5 _ Will not power up.

I just wonder if the fuse shows in the blown photo attached

Goto google.com. Type in "fuse". Hit enter.

Click on images. It will show you all types of fuse pictures. Scroll down. As you can see, they come in all shapes, sizes, and colors.

It is impossible to tell if is fuse is good or not by looking at it. You have to measure it with a multimeter.

edit: Ironically, if you look at post #3, those are pictures of my boards. Your power board and mine look similar (both Delta). My fuse is right above the AC plug. It is a black circular fuse.