Panasonic KX-TG4771B - Page 67

67
KX-TG4771B/KX-TG4772B/KX-TG4773B/KX-TGA470B
KX-TG4771 SCHEMATIC DIAGRAM (Base Unit (Main))
NC: No Components
!
XRU
XTU
EEP_WP SPI_CS EEP_SDA SPI_CLK EEP_SCL
SC_DCL
SPI_DO SPI_DI
LLEB
KEYS_F
K
L
C_2IPS
O
D
_2IPS
DC_D
C
L
KEYS_A KEYS_B
EEP_WP
EEP_SCL EEP_SDA
KEYIN3 KEYIN2 KEYIN1 KEYS_C KEYIN4 KEYIN5 KEYS_D KEYS_E KEYIN6
SPI_CLK
SPI_DO SPI_DI SPI_CS
KOOH
eslup
pulse
pulse_mute
HOOK_DET
HOOK
0
2
1
C
p0
0
0
1
101D
4
3
1
2
481C
u0.1K
L476
NC
1
A
Z
C
N
2
1
6
79
11
543
801
2
1
R131 10M
CNR509
V5
.
5
+
C152
0.01u
161R
k001
R133 330k
571C
p0001
C507
K2.2u
C342 0.1u
C611
0.1u
u1.0106C
0
1R501
CDDV
C331 NC
R114
47k
u1
125
C
C111
0.047u
V0.3+
37
1
C
u
2
2
.
0
K
C513
K2.2u
C512
0.1u
R171
22
C457 0.033u
TAB
V
C172
NC
V0.3+
151R
k0
01
R176
100
C142 K0.01u
C509
12p
C124 10p
C151
10p
C132 K0.01u
CNC460
R605
3.3k
TAB
V
V0.3+
C167
NC
8
6405AR
1
23
4
R505
2.2k
V0.3+
ACCV
V0.3+
R112 100k
R612
10k
C185
NC
R113
10k
CDDV
C514
0.1u
27
1
R
k001
R165 27k
C522
10p
RA151
1k
1
2
3 4
ACCV
V0.3+
461R
k7.2
L474
NC
C508 10p
C458 0.033u
R166 NC
C186
10p
C530 10p
405
C
u
1
R606
3.3k
C123 10p
R111 100k
101P
22
105X
M
4
28
.3
1
F
E
RV
R506
NC
D
N
G
CNC461
R601
NC
C113
K0.68u
605C
u
1
P
A
G
C519
0.1u
R175
560
k093
2
21R
C112
0.047u
C321
1u
V5.5+
u1.
0
105C
C510
K1u
R178 1k
025C
u
1.0
C164 NC
C
DDV
1
L
C
_
KA
H
R331
68k
C322 NC
D
NG
SA103 NC
21
IC302
3
IN
2
OUT1
1
JDA
4
OUT2
D142
30V
AK
u
0
120
5
C
C503
10u
u01C505
C511 10u
C178
0.022u
IC601
FLASH16M
1
*CS
2
DO/IO1
6
CLK
7
*HOLD/IO3
3
*WP/IO2
8
VCC
4
GND
5
DI/IO0
R332
33k
Q161
B
C
E
RA651
100
1 2 3 45
6 7 8
RA652
100
1 2 3 45
6 7 8
C900
10p
RCVRn
RCVRp
HANDSETMICp
HANDSETMICn
MC
D
PCD
T1L
R
1
L
R925 2.2k
HOOK2-4
R922
100k
R921
3.9k
HOOK2-6
R92
0
10k
R926
47k
HOOK_DET
R919 100k
C930 0.056u R943 18k
C929 4.7u
C928
u1
DNG
R938 3.3k R941
18k
V
0
.
3+
1
0
3F
A3
RINGER+ RINGER-
R945 2.7k
1 23
4
R946 2.7k
1 23
4
C934
p0001
C918 0.033u C919 0.033u
DN
G
k
0
9
31
21R
R910
10k
R911
k
2.2
V
0.3+
C931 0.47u
C343 1u
Q914
R913 560
R912
022
upa_tabV
upa_tabV
SA102 NC
21
Q905
CN
Q903
Q901
R1012
C
N
R929 3.3k
IC903
042
1
SL
1
LINE1
2
GND
3
CSW
4
RA
5
OUT
6
NULL
7
CR
8
LINE2
061R
0
28
R162
18k
n
0
01509L
510
1R
0
6101R
NC
C938
NC
C939
NC
C940
0.01u
R939
k8.6
D
NGDNG
DNGD
N
G
Q913
B
C
E
C306 100u 16
C912 100u
16
C924 1000u
6.3
u
01C933
C937 100u
16
C911 NC
R908 4.7k
R1019
2.7k
R909
18k
R1017
k0
01
R1018
100k
Q907
R1020
6.8k
R322
91
R321
160
D913
V5.5
+
SA101
300V
p0
86
1
0
1C
p08
62
01C
R927 47k
R928 470k
R948
0
R152
47k
R163
12
R167
27
C161 10u
C176 22u
171Q
B
C
E
R1021 4.7k
p
0
86221
C
p086121
C
Q909
D907
4
3
1
2
IC902
1
32
4
R937 1.2k
D911
Q904
Q900
Q1010
D133
AK
Q1012
Q908
Q917
D912
C
N
HOOK_DET
HOOK_1
HOOK_2
R942
k001
1
4
9C
p0
1
249
C
p01
3
49C
p01
4
49C
p01
D113
AK
111Q
B
C
E
4
2
5
C
p0
1
5
25C
p01
D906
C323 10p
D910
C910 100p
D908D909
R1014
2.2k
7
7
1R
k1
C177
NC
u
pa
_
TABV
D143
NC
IC501
1
GPIO[20]
2
GPIO[21]
23
MIP
3
GPIO[22]
4
GPIO[23]
5
GPIO[24]
6
GPIO[25]
7
GPIO[26]
8
VDDC2
24
HSMIN
25
HSMIP
26
MPWR
27
HSSPOUTP
28
LOUT
29
SPOUTN
30
VCCPA
81
GPIO[13]
82
GPIO[14]
83
GPIO[15]
84
GPIO[16]
85
GPIO[17]
86
VDDIO2
87
GPIO[18]
88
GPIO[19]
89
GND
9
COREOUT
01
T
A
BV
11
DOUBCAPN1
2
1
DOUBCAPN
31
DOUBCAPP
41
DOUBCAPP1
5
1
DOUBOUT
61
DCIN0/LIN0
71
DCIN1
8
1
DCIN2
9
1
DCIN3/LIN1
02
FERV
12
A
CC
V
22
MIN
31
SPOUTP
32
PWM1
33
PWM0
34
DCINS
35
XOUT
36
XIN
37
VBAT_APU
38
VDD_APU
39
VCC_IF
40
VDD_IF
41
VCC_FE
42
ANT
43
TRSW_n
44
TXn
67 68
GPIO[1]/SDA_IIC
69
GPIO[2]
70
GPIO[3]
71
GPIO[4]
72
GPIO[5]
73
GPIO[6]
74
GPIO[7]
75
GPIO[8]
76
VDDIO1
77
GPIO[9]
78
GPIO[10]
79
GPIO[11]
80
GPIO[12]
C171
4700p
C168
2.2u
IC611
EEPROM
128K
1
0
E
2
1
E
6
LCS
7
*WC
3
2E
8
C
C
V
4
SSV
5
ADS
Q902
HOOKSW
DP click
pass
(YELLOW)
(GREEN)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
RX
TX
Caller ID
Bell
Power Failure
Ringing
1.2V