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Looking for service manual for Acer K272HUL?
Does anyone have this? Found one paid link but not sure it is legit.
Many thanks,
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Thanks - that procedure is the "release mode" I referred to in my post - powers up, behaves normally for about 3 seconds, shuts down to MCACC flashing
Relay clicks, but I'm assuming that is to disconnect the outputs from any DC present on the output stage.
Will find a service manual and test the rails....
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Acer K272HUL blue power light but black screen, power supply is ok
Have had two Acer K272HUL monitors die with the same symptoms:
- Blue power light is illuminated while the monitor is plugged in
- Black screen (no splash screen, etc.)
- Power button doesn't do anything
Opened it up and checked for bad caps and components, evidence of burns, etc. - everything looks fine.
Power supply voltages are fine.
There are some signal lines on the power supply harness that goes from the power supply to the logic board, not sure what these should be at.
Anyone have any ideas?...
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Pioneer VSX-1021 MCACC flashing, can't find problem
Have a Pioneer VSX-1021 that goes to MCACC flashing as soon as it is plugged in.
If I enter release mode, it powers on, the screen display is correct, but then it shuts down and goes back to MCACC after a few seconds. I can shut it down to standby (w/o flashing MCACC if I hit the power button as soon as release mode finishes the boot sequence).
Entering reset mode and executing a reset doesn't change this.
I am unable to enter service mode to see the error counts - Enter + Power button doesn't do anything, whether from normal standby or from MCACC flashing....
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