Re: Problem with Viewsonic VG920 lcd monitor
mrpd, here's some information from the other thread. The gentleman followed my advice (scary) and shorted the output of the reset controller to ground. At that point the monitor power LED came on. So it APPEARS U406 may be the culprit.
Toasty, they use a fairly 'loose' regulation on the other output voltages of these supplies. The backlight system is a major part of the power consumption of the monitor. I would expect the backlight supply to rise somewhat with the backlights off.
The 'side board' (I would call it a daughter board) is the audio amplifier. Unlike back in the days of tube amplifiers, modern audio amplifiers have a very high frequency response. High frequency interference would degrade the amplifier output. I very confident FB8607 is a surface mount ferrite bead.
PlainBill
mrpd, here's some information from the other thread. The gentleman followed my advice (scary) and shorted the output of the reset controller to ground. At that point the monitor power LED came on. So it APPEARS U406 may be the culprit.
Toasty, they use a fairly 'loose' regulation on the other output voltages of these supplies. The backlight system is a major part of the power consumption of the monitor. I would expect the backlight supply to rise somewhat with the backlights off.
The 'side board' (I would call it a daughter board) is the audio amplifier. Unlike back in the days of tube amplifiers, modern audio amplifiers have a very high frequency response. High frequency interference would degrade the amplifier output. I very confident FB8607 is a surface mount ferrite bead.
PlainBill
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