Re: iiyama ProLite X486S dead - psu / inverter issue
While I sort this out, I remember the readings (I was just verifying them when the fuse blew out), so here goes:
CCFLs connected, logic board connected, LCD panel disconnected:
2) What is the DC voltage for pin 3?
standby - 14.95V
monitor on - 16.92V
3) What is the DC voltage for pin 7?
standby - 12.04V
monitor on - 13.36V
4) What is the DC voltage for pin 5?
standby - 1.04V
monitor on - 1.05V
Also, the monitor would randomly turn itself on (from standby) when I measured the chip. Also, I'm pretty sure that the high frequency noise coming from the board is made by IC901 (the one I measured).
While I sort this out, I remember the readings (I was just verifying them when the fuse blew out), so here goes:
CCFLs connected, logic board connected, LCD panel disconnected:
2) What is the DC voltage for pin 3?
standby - 14.95V
monitor on - 16.92V
3) What is the DC voltage for pin 7?
standby - 12.04V
monitor on - 13.36V
4) What is the DC voltage for pin 5?
standby - 1.04V
monitor on - 1.05V
Also, the monitor would randomly turn itself on (from standby) when I measured the chip. Also, I'm pretty sure that the high frequency noise coming from the board is made by IC901 (the one I measured).
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