I recently aquired a HP 2159m monitor. The monitor will turn on for a short period of time after having a video source (Can be HDMI, VGA, or DVI) and AC power plugged in, it will display a menu that claims it cannot detect a signal from any of the video sources, then the display goes into stand-by.
So far, after reading a few threads about this monitor and general trouble shooting:
- I tested the fuse on the power supply to have no resistance.
- The large cap on the powersupply has ~160V across it.
- The +5V leads from the powersupply to the mainboard measured 5.28V.
- The voltage regulators I could find tested as follows:
U202
⊃||8J4
17-18L
Pin 1 - 0.000V
Pin 2 - 1.781V
Pin 3 - 3.500V
U201
⊃||8BU
17-33L
Pin 1 - 0.000V
Pin 2 - 3.28V
Pin 3 - 5.006V
I could not find datasheets for the VRs, as they seem to have unusual model numbers, I can take pictures of each regulator though my magnifying glass if anyone would like to see. I am of the impression that because a nice constant 5.3V is coming off the powersupply, that the issue must be with the mainboard.
Other than that the only information I can think to give is the monitors product number:
FV585A
and regulatory model number:
HSTND-2571-T
All help is greatly appreicated. If I forgot anything please let me know, I will try my best to get you any desired information.
So far, after reading a few threads about this monitor and general trouble shooting:
- I tested the fuse on the power supply to have no resistance.
- The large cap on the powersupply has ~160V across it.
- The +5V leads from the powersupply to the mainboard measured 5.28V.
- The voltage regulators I could find tested as follows:
U202
⊃||8J4
17-18L
Pin 1 - 0.000V
Pin 2 - 1.781V
Pin 3 - 3.500V
U201
⊃||8BU
17-33L
Pin 1 - 0.000V
Pin 2 - 3.28V
Pin 3 - 5.006V
I could not find datasheets for the VRs, as they seem to have unusual model numbers, I can take pictures of each regulator though my magnifying glass if anyone would like to see. I am of the impression that because a nice constant 5.3V is coming off the powersupply, that the issue must be with the mainboard.
Other than that the only information I can think to give is the monitors product number:
FV585A
and regulatory model number:
HSTND-2571-T
All help is greatly appreicated. If I forgot anything please let me know, I will try my best to get you any desired information.
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