Schematic Diagram (Main) - Panasonic KX-TS620BXB Service Manual

KX-TS620BXB/KX-TS620BXW

10.2. Schematic Diagram (Main)

CN403
R933 1K
1
MSG_LED
R935 1K
2
SP_LED
L301
3
VDD
2KA213
D907
4
STB5
D908
5
STB4
D909
6
STB3
D910
7
STB2
D911
8
STB1
D912
9
STB0
RA3
10
KIN5 220
1 8
11
KIN4
2 7
3 6
12
KIN3 4 5
13
KIN2
R927 220
14
KIN1
R926 220
15
KIN0
TP601
16
NC
17
MIC
18 TP602
GND
SP-Phone TX
- Audio
LCD
2KA213
1
Vcc
L302
2
GND
3
D4
L321
4
D5
L322
5
D6
L323
6
D7
L324
7
R/W
L325
8
E
L326
9
D/C
L327
10
CS
L328
11
RES
L329
3.2V
DC
IC902
16MB
AD17
AD16
1 48
A15 A16
AD15
2 47
A14 BYTE
AD14
3 46
A13 VSS
AD13
4 45
A12 DQ15
AD12
5 44
A11 DQ7
AD11
6 43
A10 DQ14
AD10
7 42
A9 DQ6
AD9
8 41
A8 DQ13
AD21
9 40
A19 DQ5
10 39
+3.2V NC DQ12
11 38
WE DQ4
12 37
RESET VCC
13 36
NC DQ11
14 35
WP DQ3
15 34
RY DQ10
AD19
16 33
R903 A18 DQ2
AD18
17 32
100 A17 DQ9
AD8
18 31
A7 DQ1
AD7
19 30
A6 DQ8
AD6
20 29
A5 DQ0
AD5
21 A4 28
OE
AD4
22 A3 27
VSS
AD3
23 A2 26
CE
AD2
24 A1 25
A0
AD1
NC: No Components
+3.2V
Q902
3.2V
DC
Q901
IC905
DAB0
DAB1
C956 K0.1
1 20
CLR VCC
2 19
1Q 8Q
DAB7
3 18
1D 8D
DAB6
4 17
2D 7D
5 16
2Q 7Q
6 15
3Q 6Q
DAB5
7 14
3D 6D
DAB4
8 13
4D 5D
9 12
4Q 5Q
10 11
GND CLK
DAB3
DAB2
+3.2V
C946 K0.1
R902
100K
C906
K0.022
R989
TP902
100K
C944
K220P
+1.8V
R906
+3.2V
C939
DAB15
DAB7
DAB14
DAB6
+3.2V TP903
DAB13
DAB5
R952
DAB12
DAB4
2.2K
R951
DAB11
DAB3
2.2K
DAB10
DAB2
TP905
DAB9
DAB1
+3.2V
DAB8
DAB0
IC903
+3.2V
VCC
VOUT
2.7V
TP904
IC904
1 8
CD VO2
2 7
C927
FC2 GND
Z1.0
3 6
FC1 VCC
C928
4 5
VO1
Z1.0
C929 K220P
C930 R925
R924 120K
K0.015 39K
3.2V
DC
+3.2V
Q702
L313
R997 10K R998 10K
R991 100 C947
J10P
C949
K1000P
RA7
220
103 LD01_Sence
104 LD01_CTRL
105 LD02_CTRL
1K
VBAT2
106
CIDIN+
107
108
AVS2
Z0.1
109 AVD2
110 LSR+/REF
111
LSR-/REF
112 CIDIN-
113 CIDOUT
C942
114
MIC-
NC
115 VREF-
116 VBUF
117 AGND
118 MIC+
119 VREF+
120 RSTn
121 AD0/EXT_MEMORY
AD1
122
AD1
AD2
123 AD2
AD3
124 AD3
AD4
125
AD4
AD5
126 AD5
AD6
127 AD6
AD7
128 AD7
+3.2V
L305
+1.8V
32
C7
16V10
TP603
SPH+
C925
SP
4.0V
6.3V220
TP604
SPH-
DC
SP-Phone RX
- Audio
- Bell signal
- Tone
1.8V
DC
+1.8V
Q701
RX (OFF Hook)
- Audio
- Call waiting
R992
L311
100
L316
+1.8V C941 Z0.1
C959 K1000P
C940 Z0.1
HOOKDET
IC901
3.2V DC
MI/READY
1.8V DC
0V HeadsetDET
EXHOOOKDET
(1)
T1
5 1
(2)
4
3 2
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
RA4
220
64
BE1n
(18)
63
BELL
ROW5
62
ROW5
61
HSIN
60
CE
L317
IOCS 59
58
(19)
ACFL 57
56
VSS C943
VDDIO 55
ROW4
Z0.1
ROW4 54
ROW3
ROW3 53
ROW2
ROW2 52 C958
ROW1
ROW1 51
ROW0 K1000P
ROW0 50
(20)
JTIO 49
(21)
URX 48
(22)
UTX 47
SCLK 46
TP901
R914 0
45
WE 44
OE 43
(23)
42
R915 0
(24)
41
SK 40
SO 39
(25)
(26)
(27)
(28)
(29)