Main Board(6) - Panasonic DP-MB310EU Service Manual

KX-MB2230EU/ KX-MB2270EU/ KX-MB2515EU/ KX-MB2545EU/ KX-MB2575EU/ DP-MB310EU

16.5.6. Main Board(6)

1
A
1:2B;1:2D
RING
1:2B
DP
1:2B;3E
AFECLK
1:2A
ASPCLK
1:2A
ABITCLK
B
1:2A
ARXD
1:2A
ATXD
+3.3VA1
DG
1:2B;3E
AFERST
+3.3VA1
DG
1:2E
AINT
C
CID:
DTMF for TEL Line:
FAX-TX:
FAX-RX:
MONITOR RX:
Ringing:
Alarm:
Beep:
Key tones:
D
S5V +5VA
R200
R203
( )
NC
0(1608)
8
IC200 V+
V-
NC
4
DG
DG
+2.5V
DG DG
E +3.3V
R204
0(1608)
+3.3V
R205
0(1608)
F
2
+3.3VA1
IC100
1 16
MCLK *OFHK +3.3VA1
2 15
*FSYNC *RGDT/FSD/M1
3 14
SCLK M0
4 13
VD VA
5 12
SDO GND
6 11
SDI AOUT/*INT
7 10
FC/*RGDT C1A
8 9
*RESET C2A
C102
K0.1u
DG
DAOUT
BTXD
BRXD
BSPCLK
AFECLK
BBITCLK
+3.3VA1
AFERST
+3.3VA2
3
R105
C105
1.07k(1/2W)
50V/1u
1
2
3
56(1608)
4
C103
L100 R102
5
18BB750
33p/250V
6
56(1608) 7
C104
L101 R103
8
18BB750
33p/250V
R104
C106
F1M
K0.1u
C119
33p/250V
DG
1:2C;4:3B
IC201
1 16
SPKRR
SPKRL
2 15
MBIAS
LINEO
3 14
HDST
GND
1:2A
4 13
SDI
VA
1:2B
5 12
SDO
VD
1:2A
6 11
*FSYNC
LINEI
1:2B;1B
7 10
MCLK
MIC
1:2A
8 9
SCLK
*RESET
+3.3VA2
DG
1:2B;1C
DG
392
4
IC101
16
QE DCT2
R108
15
DCT IGND
3.65k(1/2W)
14
RX DCT3
13
IB QB
12
C1B QE2
11
C2B
SC
10
VREG VREG2
9
RNG1 RNG2
C107
K0.1u
R106
R109
15M(3216)
5.1M(2125)
C108 120p
R107
R110
15M(3216)
5.1M(2125)
C109 120p
+3.3VA2
DG
DG DG
R216
C206 K0.022u R212 4.7k
4.7k
C207 K0.1u R213 10k
C208 NC R214 NC
DG
( ) ( )
Q200
1:2D
CNGMUTE
DG
KX-MB2545EU MAIN BOARD (No.6) (1/2)
1/2 2/4
6
-1
(1)
(2)
R111
(3)
150
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
C212
K0.022u
(13)
(14)