Hi, i have a "LCD monitor AMW X1900DS" defekt,is any chance to find out service manual for it. The power led is lighted blue, and monitor do nothing, lcd is blank(black), the power button DO nothing when i try to press it. Power source module is perfect verified 100% OK, i presume that the problem is from mainboard (digital part ) of monitor.
Thnx
I solved the problem, i erase the memory(atmel) and now work perfectly, thnx for trying to help me.. the case is closed !
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Hi,
If you absolutely sure the PSU is good, then first check voltage stabilizers on the scaler board (=main board), there are two or free of them. Typical voltages are 5V, 3.3V, 2.5V and sometimes 1.8V. These voltages have to be stable always.
Then you should check the crystal, you need an oscilloscope for this.
If you could take a picture of the scaler board and put it here, then we could help you more.
DM
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Hi, thnx for reply. Yes the power board is ok, and all + lines on the digital board are ok, cpu and all chips that are on the board are correctly alimented i think with the right power, i'll make new measurement and i'll post the image with the board aswell. I have osciloscope, i din't use it yet, i just made simple measurement, and than i searched for service manual here, just today arrived for repair. Tommorow if i have time for it i'll continue with it.
Thx
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