Main Board(6) - Panasonic KX-MB2230JT Service Manual

KX-MB2230JT/ KX-MB2270JT/ KX-MB2515JT/ KX-MB2545JT/ KX-MB2575JT/ DP-MB310JT

16.4.6. Main Board(6)

1
A
1:2B;1:2D
RING
1:2B
DP
1:2B;3E
AFECLK
1:2A
B
ASPCLK
1:2A
ABITCLK
1:2A
ARXD
1:2A
ATXD
DG
1:2B;3E
AFERST
+3.3VA1
1:2E
AINT
C
D
S5V +5VA
R200 R203
( )
NC
NC
8
IC200
V+
V-
NC
4
DG
DG
+2.5V
DG DG
E
F
2
+3.3VA1
IC100
NC
1 16
MCLK
*OFHK
2 15
*FSYNC
*RGDT/FSD/M1
3 14
SCLK
M0
4 13
VD
VA
5 12
SDO
GND
6 11
SDI
AOUT/*INT
+3.3VA1
7 10
FC/*RGDT
C1A
8 9
*RESET
C2A
C102
NC
DG
DG
CID:
DTMF for TEL Line:
FAX-TX:
FAX-RX:
MONITOR RX:
Ringing:
Alarm:
Beep:
Key tones:
+3.3VA1
+3.3V
R204
NC
+3.3VA2
+3.3V
R205
NC
3
C105
NC
+3.3VA1
NC
C103
L100 R102
NC
NC
NC
C104
L101 R103
NC
NC
R104
NC
C119
NC
DG
1:2C;4:3B
DAOUT
1
SPKRR
2
MBIAS
3
HDST
1:2A
BTXD 4
SDI
1:2B
BRXD 5
SDO
1:2A
BSPCLK 6
*FSYNC
1:2B;1B
AFECLK 7
MCLK
1:2A
BBITCLK 8
SCLK
DG
1:2B;1C
AFERST
368
R105
NC
IC101
NC
1 16
QE DCT2
2 15
DCT IGND
3 14
RX DCT3
4 13
IB QB
5 12
C1B QE2
6 11
C2B SC
7 10
VREG VREG2
8 9
RNG1 RNG2
C107
C106
NC
NC
+3.3VA2
IC201
DG
NC
16
SPKRL
15
LINEO
14
GND
13
VA
DG DG
12
VD
11
LINEI
10
MIC
9
*RESET
C206 NC R212
C207 NC R213
+3.3VA2
C208 NC R214
( ) (
DG
1:2D
CNGMUTE
DG
KX-MB2515JT MAIN BOARD (No.6) (1/2)
4
1/2 2/4
6
-1
(1)
(2)
R111
(3)
NC
R108
NC
(4)
(5)
(6)
(7)
C110
NC
(8)
(9)
R106
R109
(10)
NC
NC
C108 NC
R107
R110
(11)
NC
NC
C109 NC
(12)
C212
R216
NC
NC NC
NC
NC
) (13)
Q200
NC
(14)
DG