Hi,
Am trying to fix an LCD monitor who's power board is playing up - circuit diagram attached.
The output from the Schottky rectifiers should be +12V and +3.3V, circled in red on the diagram, however instead the voltages are fluctuating between 3.5 and 5 (instead of 12), and 1.6 and 1.8 (instead of 3.3). Can anyone suggest where I can look to start troubleshooting it ?.
Thanks.
Am trying to fix an LCD monitor who's power board is playing up - circuit diagram attached.
The output from the Schottky rectifiers should be +12V and +3.3V, circled in red on the diagram, however instead the voltages are fluctuating between 3.5 and 5 (instead of 12), and 1.6 and 1.8 (instead of 3.3). Can anyone suggest where I can look to start troubleshooting it ?.
Thanks.
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