Read Panasonic KX-TDA0103X / KX-TDA0103XJ / KX-TDA0104X / KX-TDA0104XJ / ETX1KM753MB / ETX1KM752MB Service Manual online
11
KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
4.3.4.
15V Output Circuit
15V Output circuit converts the 41V or the Battery back up voltage (during back up mode) to a regulated 15V output by DC-DC
switching PWM
1. Q201: DC-DC switching MOSFET
D202: Flywheel diode
L202 : DC-DC choke
C204 : DC output smoothing capacitor
Peripheral circuit provides ripple reduction and voltage sensing and feedback
L202 : DC-DC choke
C204 : DC output smoothing capacitor
Peripheral circuit provides ripple reduction and voltage sensing and feedback
2. DC-DC switching IC and control circuit
MC201 provides the control IC for switching and voltage control
4.3.5.
15VP Output Circuit
15VP Output circuit converts the 41V or the Battery back up voltage (during back up mode) to a regulated 15V output by DC-
DC switching PWM
1. Q302, Q303: DC-DC switching MOSFETs (parallel operation)
D302: Flywheel diode
L302 : DC-DC choke
C305, C306 : DC output smoothing capacitor
Peripheral circuit provide ripple reduction and voltage sensing and feedback
L302 : DC-DC choke
C305, C306 : DC output smoothing capacitor
Peripheral circuit provide ripple reduction and voltage sensing and feedback
2. DC-DC switching IC and control circuit
MC301 provides the control IC for switching and voltage control
Click on the first or last page to see other KX-TDA0103X / KX-TDA0103XJ / KX-TDA0104X / KX-TDA0104XJ / ETX1KM753MB / ETX1KM752MB service manuals if exist.