Fujistu-Siemens LCD Color monitor B17-1 strange problem

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

Rtech, thanks first of all to answer me.
I'm sorry if my english is not correct, but I am Italian.
Not knowing the value of those capacitor's, (and not knowing the value) I felt proceed as follows:
On the internet I found out that they themselves capacitor's: 7c184j 250V are also mounted on this monitor: VIEWSONIC VX715, I downloaded the service manual:
http://elektrotanya.com/viewsonic_vx.../download.html and then I went to read my value is: PMS 0.18UF 250V.
You say, I Rtech done well?
I am not a professional but a fan of electronics and information technology.

Thanks again

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

How much can cost these 2 caps?

[Rtech]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

You may not find it easy to purchase them,you can try Farnell or RS,but the cost with postage will be quite a lot.Suggest that Ebay may well be your only option.

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

Thanks Rtech.
Can I ask for some information?
In addition to the monitor I'm also trying to repair my Netgear router which goes some caps like the ones I bought.
A guy on a forum told me to use LOW ESR caps.
Not be happy with what I bought it for the monitor?

thanks again

[Rtech]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

These two caps are NOT Electrolytic capacitors, and so forget ESR.
The remainder that you bought should be low ESR and a minimum temperature of 105 degrees Centrigade.

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

These two caps are NOT Electrolytic capacitors, and so forget ESR.
The remainder that you bought should be low ESR and a minimum temperature of 105 degrees Centrigade.

Thanks for giving me Rtech said.
I'll let you know will go with the router.

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

I can put the link of caps, taken from ebay?

http://www.ebay.it/itm/5x-CONDENSATO...item3a79991696

[Rtech]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

NO,You want 180 nanofarads !!!!!

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

It's true
http://www.ebay.it/itm/5-x-Condensat...item27bbaf69d1
Thanks

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

Friends ... even changing the two caps C213-C214 the problem persists.
I think that for a problem with the lamps.
Thank you all for the support you are providing me.
....

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

suggestions???

Thanks!

[budm]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

Do you have test lamps? If not you can use something like this:
http://s807.photobucket.com/albums/y...g%20old%20CFL/

Or lamp tester:
http://www.ebay.com/itm/Universal-CC...item41606f799e

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

Do you have test lamps? If not you can use something like this:
Or lamp tester:
http://www.ebay.com/itm/Universal-CC...item41606f799e

Budm Thanks for having me put away.
In fact, I want to buy a tester for the lamps.
What I would like to understand is these testers but do not have a dedicated power supply?
Thank you!

[budm]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

You can use the existing power supply of your board to power it since this tester can run on 10~30VDC.

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

You can use the existing power supply of your board to power it since this tester can run on 10~30VDC.

I could see, please an example of this power supply?
because I'm really interested to buy it but I would like to understand how it works.

Thank you again.

[budm]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

You will be using this section to power the lamp tester inverter.
Can you post the picture of the bottom side of the board in that red circle?

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

Hello budm! Thank you for your answer. Soon I will buy the lamp tester. I changes the 4 caps (in red circle), 2 caps and 4 transistors but the monitor's imagine is black. What would you suggest me to control?

Thanks!

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

So ..... I did just a beautiful mistake ....... but proceed with caution.

Having 3 monitors identical (the same brand and model) and having one repaired successfully thanks to your support to try to repair this one I felt so proceed, namely:

Removed the card working power and put under another monitor I'm trying to fix and everything works fine.

I did this test to see if it was a problem of lamps or the video card, but fortunately it is only a problem on the Power Supply board.

I reinstalled the power supply board monitor in its original and does not work!!! and as if trying to turn on but it goes in a loop and feels ta ta ta .....

What have I done??

thanks

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

you hear a ta ta ta as a quartz clock .... wants to come on but there is something blocking it .....

[teppei]

Re: Fujistu-Siemens LCD Color monitor B17-1 strange problem

suggestions???

Thanks!