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

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

16.6.6. 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
( )
0(1608)
NC
8
IC200
V+
V-
NC
4
DG
DG
+2.5V
DG DG
E
F
2
+3.3VA1
IC100
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
K0.1u
DG
DG
CID:
DTMF for TEL Line:
FAX-TX:
FAX-RX:
MONITOR RX:
Ringing:
Alarm:
Beep:
Key tones:
+3.3VA1
+3.3V
R204
0(1608)
+3.3VA2
+3.3V
R205
0(1608)
3
C105
50V/1u
+3.3VA1
56(1608)
C103
L100 R102
18BB750
33p/250V
56(1608)
C104
L101 R103
18BB750
33p/250V
R104
F1M
C119
33p/250V
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
396
R105
1.07k(1/2W)
IC101
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
K0.1u
K0.1u
5.1M(2125)
5.1M(2125)
+3.3VA2
IC201
DG
16
SPKRL
15
LINEO
14
GND
13
VA
DG DG
12
VD
11
LINEI
10
MIC
9
*RESET
C206 K0.022u R212
C207 K0.1u R213
+3.3VA2
C208 NC R214
( ) (
DG
1:2D
CNGMUTE
DG
KX-MB2575JT MAIN BOARD (No.6) (1/2)
4
1/2 2/4
6
-1
(1)
(2)
R111
(3)
150
R108
3.65k(1/2W)
(4)
(5)
(6)
(7)
C110
K2700p
(8)
(9)
R106
R109
(10)
15M(3216)
C108 120p
R107
R110
(11)
15M(3216)
C109 120p
(12)
C212
R216
4.7k
4.7k K0.022u
10k
NC
) (13)
Q200
(14)
DG