Sub Board 4 - Panasonic KX-TDA0103XJ Service Manual

R640 R641 R642
(1)
(2)
7
(3)
(4)
(5)
(6)
R681
(7)
PC4 Q690
Q692
Q603
R690 D691 C690
R691
Q691 D693
Q604
(8)
Latch Circuit
Main Switch Controller Circuit
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
15 CN602
PC4 PC2
CN603
CN604
Q521 D522
CN601
(24)
Dropper Circuit
C620
Sub Switch Controller Circuit
T601
C621
R621
Q622
D652
D607
R607
C610
R606
R614
PC601
Q602
R610
BEA602 D601
C607
8
17
T401
Q401
D401
R403
D405
D402
R404
C405
D407
D403
R432
R406
C407
15VPT Output
Over Current Protection
Circuit
PC1
Q540
DC Alarm Sending Circuit
KX-TDA0103XJ / KX-TDA0104XJ / KX-TDA0108XJ / KX-TDA0103X / KX-TDA0104X / KX-TDA0108X
Main Converter Output Circuit
8 PC601
C660
R655
IC651
C659
CN555 CN556
R166 R165
D155
R168
Q154
D156
8
R169 R170
R172
Q153 R191
R192
D157
Battery Input/Output
D162
R175
R176
DC Switch Circuit
R177
D164
Q158
C165
R179
9
R180 R181
Q156
41V Output
DC Switch Circuit
41V Output
Over Current Protection Circuit
16
L402
R408
Q402
R411
C422
15VPT
R434
T402
Output Converter
R424 R425
Switching Circuit
15VPT Output Converter
Control Circuit
KX-TDA0103XJ/X L-TYPE POWER SUPPLY UNIT (PSU-L)
153
Over Voltage Detection Circuit
Q155
R174 D160 D161
Q157
R187
L161
L403
MAIN BOARD (MPS3802) (2/2)
CN104
CN204_4
4
CN204_3
3
CN204_2
2
CN204_1
1
CN101
AC_ALM
1
23 DC_ALM
2 NC
24 POWTYPE0
3 FAN_ALM
nBATT
25
4 POWERGND
26 POWERGND
5 30V
30V
27
POWERGND
6
28 POWERGND
7 POWERGND
To
POWERGND
29
POWERGND
8 PBX
POWERGND
30
POWERGND
9
POWERGND
31
POWERGND
10
POWERGND
32
POWERGND
11
POWERGND
33
POWERGND
12
POWERGND
34
POWERGND
13
POWERGND
35
+41V
14
+41V
36
15 +41V
37 +41V
+41V
16
+41V
38
+15V
17
+15V
39
+15V
18
+15VPT
40
+15VPT
19
+15VPT
41
20 +15VPT
+15VPT
42
+15VPT
21
+15VPT
43
22 +15VPT
+15VPT
44
30V Output Converter

SUB BOARD 4

CN401
CN402_1
1
CN402_2
2 20
CN402_3
3
CN402_4
4
19
CN904
CN804
1 1
2 2
3 3
18
4 4
5 5
6 6
7 7
8 8
CN803
CN903
1 1
2 2
3 3
4 4
CN301 CN302
1 1
2 2
3 3
4 4
CN901 CN801
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9