| View previous topic :: View next topic |
| Author |
Message |
Jamie
Guest
|
 Posted: Tue Apr 19, 2005 1:21 pm Post subject: Compaq s910 monitor dead |
 |
|
I have one of these monitors and it now refuses to turn on..... it started by clicking overnight when left on standby for long periods and got slower and slower to turn on after pressing the switch. now it just doesent come on at all. is this a cap in the power supply does anyone know and which one is most likely?
thanks in advance |
|
| Back to top |
|
 |
jamie
Guest
|
| Posted: Mon Apr 25, 2005 10:42 am Post subject: |
|
|
| anyone, please? |
|
| Back to top |
|
|
walter58
Joined: 11 Apr 2005
Posts: 20
Location: Antwerp,Belgium
|
| Posted: Tue Apr 26, 2005 2:46 pm Post subject: compaq monitor S910 |
|
|
hello,
it could very well be a capacitor in the power supply, so you have to look in the neighbourhood of the PWM chopper IC,which powers up the chopper transformer in the power supply. I have no schematics, but look for an electrolytic cap in the range from 1 uF to 100uF ; in many cases a voltage divider is made to feed the switching IC,so if this voltage is too low, your monitor won't start.
Check also the caps in the secondary part of the main power supply,it could be that one of them leaks, their values are greater, range from 100uF to 2200uF/40 volts.
succes !! 
Walter
_________________
never give up when you are looking for something,unless you're forced to ! |
|
| Back to top |
|
|
jamie
Guest
|
| Posted: Wed Apr 27, 2005 10:09 am Post subject: |
|
|
your a star! 
I'l get hunting and post the result
thanks |
|
| Back to top |
|
|
Guest
|
|
| Back to top |
|
|
Jamie
Guest
|
| Posted: Wed May 18, 2005 10:27 am Post subject: |
|
|
Thanks for that. i have got the back off again and actually identified the 2x caps (c843/5) as looking suspect. the schematic says they are 1uf 250v non-polarised which is as fitted in my monitor but i am having difficulty sourcing them.
he says the capacitance is not too important but i am not sure how far to go away from standard........
any ideas where i can get them from?
cheers |
|
| Back to top |
|
|
Adrian
Guest
|
| Posted: Mon Jul 10, 2006 10:43 am Post subject: Re: Compaq s910 monitor dead |
|
|
Hi Jamie,
I've got a Compaq S910 monitor with the same problem like yours.
Have you fixed it or have you found a schematic for the monitor it would help me a lot.
thanks,
Adrian. |
|
| Back to top |
|
|
|
|
|
FAQ
