Hi guys,
I've an LG e2711t-bn monitor which is extremely slow to wake up.
It takes ~10 - 20 minutes to show the display.
Once it's on, it works flawlessly until it enters sleep again.
I've taken it apart and found that secondary capacitors have blown (bulging tops) on the power board side. The large primary seems intact with no signs of damage.
The capacitors I have found are:
1 x primary cap... unknown brand and capacitance, 450V.
3 x su'scon 1000uF, 10V, 3 x bulging top
3 x su'scon 470uF, 35V, 1 x bulging top
1 x su'scon 47uF, 100V, no damage
1 x su'scon 33uF, 50V, no damage
To fix the monitor, I suspect I'll only need to replace the 4 caps with bulging tops. However, I'd like to replace all 9 caps.
The problem is that I don't know how to determine the specs of the primary cap since parts of it have become illegible due to the glue they used to stick it onto the pcb.
Does anyone have any info on the primary for this monitor?
Also how do I determine ripple requirements?
I plan to replace all caps with Japanese caps.
Edit: I don't have a service manual for this monitor. I've asked LG and they've refused to provide one to me stating that they were only allowed to supply them to authorized technicians. If there are any LG authorised technicians on this board who could upload a copy of the service manual, you'll have my gratitude.
I've an LG e2711t-bn monitor which is extremely slow to wake up.
It takes ~10 - 20 minutes to show the display.
Once it's on, it works flawlessly until it enters sleep again.
I've taken it apart and found that secondary capacitors have blown (bulging tops) on the power board side. The large primary seems intact with no signs of damage.
The capacitors I have found are:
1 x primary cap... unknown brand and capacitance, 450V.
3 x su'scon 1000uF, 10V, 3 x bulging top
3 x su'scon 470uF, 35V, 1 x bulging top
1 x su'scon 47uF, 100V, no damage
1 x su'scon 33uF, 50V, no damage
To fix the monitor, I suspect I'll only need to replace the 4 caps with bulging tops. However, I'd like to replace all 9 caps.
The problem is that I don't know how to determine the specs of the primary cap since parts of it have become illegible due to the glue they used to stick it onto the pcb.
Does anyone have any info on the primary for this monitor?
Also how do I determine ripple requirements?
I plan to replace all caps with Japanese caps.
Edit: I don't have a service manual for this monitor. I've asked LG and they've refused to provide one to me stating that they were only allowed to supply them to authorized technicians. If there are any LG authorised technicians on this board who could upload a copy of the service manual, you'll have my gratitude.
.
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