[colug-432] Mo' bulged electrolytic capacitors: (Viewsonic) Optiquest, circa 2007

[jep200404]

The plague continues. 

This time it is a (Viewsonic) Optiquest monitor made 2007-03-06. 
The backlight didn't. Shining a bright light into the LCD, 
I could see no useful images, so this was more than just a bad 
backlight. 

Again I found bulged capacitors in the power supply. 
They were at the top of the power supply immediately above 
heat sink which likely hastened their decline. 

     Marked                   Measured    Replaced with              measured
C241 1000 µF 10V 105°C CapXon   2.27 µF   1500 µF 10V 105°C nichicon 1482 µF
C242  470 µF 10V 105°C CapXon  12.32 µF    470 µF 10V 105°C G-LUXON   512 µF
C244 1000 µF 10V 105°C CapXon   2.79 µF   1000 µF 16V 105°C KME      1022 µF
C261  470 µF 25V 105°C TAICON 229   µF     470 µF 25V 105°C SXE       408 µF
C263  470 µF 25V 105°C TAICON 106   µF     470 µF 25V 105°C SXE       463 µF

After replacing the bulged caps, the monitor works just fine. 

On Mon, 31 May 2010 17:41:18 -0400, jep200404 <jep200404 at columbus.rr.com> wrote:

> My success rate for resuscitating LCD monitors is 100%, 
> but statistically insignificant at 2 out of 2. 

Now my success rate for resuscitating LCD monitors is 100%, 
but still statistically insignificant at 3 out of 3.