Check Power - Panasonic KX-PRW130W Service Manual

9.1.1.

Check Power

9.1.1.1. Base Unit
Is the AC Adaptor inserted into AC outlet? (*1)
Is input of IC302 about 5.5 V?
Is the output voltage of IC302 about 3.3V?
Is the Collector of Q301 about 1.8 V?
Is the Collector of Q302 about 2.5 V?
Is BBIC (IC501: RSTn) High?
Does BBIC (IC501: XTAL1) oscillate at 20.736 MHz?
Check BBIC (IC501).
Cross Reference:
Power Supply Circuit (P.13)
Note:
(*1) Refer to Specifications (P.7) for part number and supply voltage of AC Adaptor.
YES
YES
YES
YES
YES
YES YES
NO
Check C321, C341 are not shorted.
YES
Check AC Adaptor.
NO
Check Power Supply Circuit.
NO
NO
NO
Check BBIC (IC501).
NO
Check X1.
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KX-PRW130W/KX-PRWA13W