Panasonic KX-TDA0103X / KX-TDA0103XJ / KX-TDA0104X / KX-TDA0104XJ / ETX1KM753MB / ETX1KM752MB Service Manual ▷ View online
25
KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
5.3.
Replacing the Power Supply Unit
1. Unplug the AC power cord and cord and Back-up Battery Cable.
2. Turn the 4 screws anticlockwise to loosen them.
3. Pull the release lever in the direction of the arrow to disconnect the PSU from the back board.
4. Replace the PSU.
5. Follow the steps in "Installing the Power Supply Unit".
26
KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
6 Troubleshooting Guide
6.1.
KX-TDA0103X/KX-TDA0103XJ Power Unit Troubleshooting
6.1.1.
All Outputs no voltage ( 15V, 15Vpt, 41V, 30V all no voltage )
27
KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
6.1.2.
Table
Ref
Defective mode
short/open
Check point
Other parts which have the possibility of failure
simultaneously
D003
Open
1-3
2-4
D202
Short
A-K
Q201
D303
Short
A-K
Q302
Q303
D503
Short
A-K
Q503
L001
Open
1-2
MC001
Q001, Q002
Q001, Q002
Short/ Open
D-S
G-S
F001
Q008
Q009
Q003, Q006
Short/ Open
D-S
G-S
F001
F003
Q010
Q011
Q201
Short
D-S
Q302, Q303
Short
D-S
Q502
Short
D-S
28
KX-TDA0103X/KX-TDA0103XJ/KX-TDA0104X/KX-TDA0104XJ
6.1.3.
Only 15Vpt/30V no voltage ( 15V, 41V have output voltage )
6.1.4.
Table
Ref
Defective mode
short/open
Check point
Other parts which have the possibility of failure
simultaneously
Q005
Short/ open
B-E
C/B/E
Q131
Short
C-E
Q301
Short/ open
P1-P3
1/2/3
Q501
Short/ open
P1-P3
1/2/3
Click on the first or last page to see other KX-TDA0103X / KX-TDA0103XJ / KX-TDA0104X / KX-TDA0104XJ / ETX1KM753MB / ETX1KM752MB service manuals if exist.