I have here a thin terminal PC, seems to run Windows CE or some variation...
It's basically a small Geode based PC built into the back of an LCD monitor.
The front displays the logo "ADi"
On the back, the sticker says
Product Name: T8053 LCD Color Terminal
Model Number: WT-500H
Description: TD-551W
When I first got it, I couldn't get it to startup (seemed totally dead, press power button, nothing happens, not even an LED)
After pulling it apart I notice there has been work done on the PSU, some components have fresh solder (though I can't tell if components are new)
After putting it back together it seems to work, but I am worried about the 12v line.
This PSU seems to be similar to ATX (wiring colours and voltages are the same, green wire for PS_ON but no PWR_GOOD and it lacks 3.3v rail)
At power-on, the 12v rail jumps up to 22v and then falls back to 12v faster and stays there (I measured with DMM so it may go higher than this) 5volt rail seems fine. 5v standby also seems fine (though maybe a little low, 4.78v)
I suspect the PSU to be faulty in some way, especially as it did not even power up the first time I tried it
However since no actual damage seems to be done to the components, I considered the possibility that they are just using a really badly designed PSU and have also included protection circuitry to limit the initial overvoltage condition (I know that is stupid but I'm sure someone's seen stupider designs than that)
If anyone has experience with this model, would be great to hear, or any other thoughts on the matter. If it is a fault, what would I be looking for?
It's basically a small Geode based PC built into the back of an LCD monitor.
The front displays the logo "ADi"
On the back, the sticker says
Product Name: T8053 LCD Color Terminal
Model Number: WT-500H
Description: TD-551W
When I first got it, I couldn't get it to startup (seemed totally dead, press power button, nothing happens, not even an LED)
After pulling it apart I notice there has been work done on the PSU, some components have fresh solder (though I can't tell if components are new)
After putting it back together it seems to work, but I am worried about the 12v line.
This PSU seems to be similar to ATX (wiring colours and voltages are the same, green wire for PS_ON but no PWR_GOOD and it lacks 3.3v rail)
At power-on, the 12v rail jumps up to 22v and then falls back to 12v faster and stays there (I measured with DMM so it may go higher than this) 5volt rail seems fine. 5v standby also seems fine (though maybe a little low, 4.78v)
I suspect the PSU to be faulty in some way, especially as it did not even power up the first time I tried it
However since no actual damage seems to be done to the components, I considered the possibility that they are just using a really badly designed PSU and have also included protection circuitry to limit the initial overvoltage condition (I know that is stupid but I'm sure someone's seen stupider designs than that)
If anyone has experience with this model, would be great to hear, or any other thoughts on the matter. If it is a fault, what would I be looking for?
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