Re: acer al2423w no picture
Should i buy caps for the power supply or for the signal card or both?
rockweld
Member
Last Activity: 04-13-2012, 07:12 PM
Joined: 04-04-2012
Location: pennsauken NJ
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Re: acer al2423w no picture
I checked the voltages on the regulators and edited the picture to reflect my findings.
So cns1 has no 12v under any conditions.
cns2 has no 12v or 19v under any conditions.
I never see the back-light come on.
[ATTACH]38705[/ATTACH]...Leave a comment:
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Re: acer al2423w no picture
i got 160v across the primary cap. Is that normal?Leave a comment:
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Re: acer al2423w no picture
i tried the hair dryer trick with no change.Leave a comment:
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Re: acer al2423w no picture
CNS2 out looks like this, from right to left.
1. 3v
2. 230mv
3. .6v
4. .5v
5. 230mv
6. 30mv
7. 30mvLeave a comment:
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Re: acer al2423w no picture
This one. I pushed on it a bit to see if anything was coming out and how flimsy it felt so it was up a little more then it looks now. Maybe i should just replace all of these Teapo caps since you said they commonly fail without external symptoms.
[ATTACH]38401[/ATTACH]...Leave a comment:
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Re: acer al2423w no picture
I didn't know how to label the wires for CNS2. It doesn't have a corresponding reference chart like CNS1. Do you just want me to label them left to right and report the voltages?
I was going to test the Capacitors output voltages and report. But i guess that has no value.Leave a comment:
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Re: acer al2423w no picture
Well i just tested the CNS1 connectors with the monitor on standby (not connected to computer).
12v = 0v
Ground = 0v
5v = 5v
on/off = 0v
I'll test more soon and update but to test the capacitors i need someone to hold the board on its side while i test because of how short the wires are and how everything is laid out.
Edit: I checked the red fuse next to connector CNS2 and it has no resistance so its fine.
[ATTACH]38356[/ATTACH]
[ATTACH]38357[/ATTACH]Re: acer al2423w no picture...Last edited by rockweld; 04-06-2012, 04:40 PM.Leave a comment:
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Re: acer al2423w no picture
Sorry for all these newbie questions but i have to make sure im understanding you right. can i just put the two boards together and hook it up to power to test the caps or do i have to put it "all" together? You know, to the display and all.Leave a comment:
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Re: acer al2423w no picture
Here are the board's backs. I have to have the monitor assembled and running to check the voltages right?
[ATTACH]38266[/ATTACH]
[ATTACH]38267[/ATTACH]
[ATTACH]38268[/ATTACH]
[ATTACH]38269[/ATTACH]Re: acer al2423w no picture
Here are the board's backs. I have to have the monitor assembled and running to check the voltages right?
[ATTACH]38266[/ATTACH]
[ATTACH]38267[/ATTACH]
[ATTACH]38268[/ATTACH]
[ATTACH]38269[/ATTACH...Leave a comment:
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Re: acer al2423w no picture
How do you test output voltages? I have a multi meterLeave a comment:
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acer al2423w no picture
So a few days ago i was using my monitor and i went to the kitchen for whatever reason. When i came back the monitor was black and the power button was green which means the monitor is getting a signal from the computer. I made sure all of the connections were tight and turned both the monitor and computer on and off. when the computer was off the monitors light switched to orange (standby) and when the computer was turned on it went back to green (responding) the only thing is that the screen stays black through all of this.
Right now im running on an older monitor which i plugged...Last edited by rockweld; 04-04-2012, 06:56 PM.
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