Check Power - Panasonic KX-TG8162ALB Service Manual

KX-TG8162ALB/KX-TG8163ALB/KX-TGA815AZB
9.1.1.

Check Power

9.1.1.1. Base Unit
Is the AC Adaptor inserted into AC outlet? (*1)
Is input of Q301 about 5.5 V?
Is the output voltage of Q301 about 3.0 V?
Is the output voltage of BBIC (IC501:15) about
3.0 V?
Is BBIC (IC501: 54) High?
Does BBIC (IC501: 36) oscillate at 13.824 MHz?
Check BBIC (IC501).
Cross Reference:
Power Supply Circuit (P.12)
Note:
(*1) Refer to Specifications (P.7) for part number and supply voltage of AC Adaptor.
9.1.1.2. Handset
Is the battery inserted BATT+ and BATT-?
Is the voltage of BATT+ 2.3 V more?
Is the voltage of +1.8V about 1.8 V?
Is the voltage of CP3V about 3.0 V?
Is the voltage of CP_LED about 4.0 V?
(When LED is On)
Is the voltage of CP2.8V about 2.8 V?
Does BBIC (IC1: 10) oscillate at 10.368 MHz?
Check BBIC (IC1).
Cross Reference:
Power Supply Circuit/Reset Circuit (P.15)
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
NO
Check F301, R300 are not open.
YES
Check C306, C341 are not shorted.
YES
Check AC Adaptor.
NO
Check Power Supply Circuit.
NO
Check BBIC (IC501).
NO
NO
Check X501.
NO
Check F1 is not open.
Check the battery and around BATT+ and
BATT- are not shorted.
NO
Check Power Supply Circuit/Reset Circuit .
NO
NO
Check BBIC (IC1).
NO
Check X1.
30
YES