Panasonic KX-TA308 - Page 10

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(2)
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(32)
(33)
(34)
(35)
(36)
(37)
(38)
(39)
(40)
(41)
(42)
Q206C
+12V
R252C
47K
R253C
47K
Q205C
R256C
47K
Q203C
R254C
47K
R255C
47K
Q204C
Q207C
C281
0.022
+5V
R920
12K
C280
0.022
+5V
IC113
3
2
1
C908
0.0015
R921
39K
R919
0
C909
0.0082
+12V
R254A
47K
R253A
47K
Q203A
R256A
47K
Q206A
Q204A
R255A
47K
R235A
680K
R252A
47K
Q207A
Q205A
+12V
R254B
47K
R253B
47K
Q203B
R256B
47K
Q206B
Q204B
R255B
47K
R252B
47K
Q207B
Q205B
IC200A
8
4
+12V
C290A
0.022
+12V
IC200B
8
4
C290B
0.022
+12V
IC200C
8
4
C290C
0.022
+12V
C292A
0.022
C292B
0.022
+12V
C292C
0.022
+12V
+12V
IC201B
14
7
IC201C
14
7
C291B
0.022
+12V
C291C
0.022
IC201A
14
7
C291A
0.022
+12V
C294
0.022
+12V
IC204
1
2
13
IC204
9
8
6
IC204
10
11
12
R264
47K
R265
47K
IC130
VDD
1
VSS
7
NC
18
COL1
4
COL2
5
COL3
6
ROW1
17
ROW2
16
ROW3
15
ROW4
14
COL4
11
OSCO
10
TONE
20
CD
19
XMIT
2
MUTE
12
OSCI
9
NC
13
NC
8
NC
3
R250A
OPEN
Q202A
NO MOUNT
Q202B
NO MOUNT
R250B
OPEN
R250C
OPEN
Q202C
NO MOUNT
IC202A
14
7
IC202B
14
7
IC202C
14
7
R266
47K
R267
47K
R268
47K
R269
47K
R270
47K
R271
47K
+5V
R273C 47K
R273B 47K
R273A 47K
+5V
IC204
14
7
C910
0.1
R280
330
R281
330
R282
330
R283
330
R284
330
R285
330
R286
330
R287
330
CN5
14 PAY 1
15 PAY 2
16 PAY 3
17 DIAL1
18 DIAL2
19 DIAL3
20 CALLIDCARD
21 PAYTONECARD
IC205
P10
13
P11
14
P12
15
P13
16
P14
17
P15
18
P16
19
P17
20
P20
21
P21
24
P22
25
P23
26
P24
27
P25
28
P26
29
P27
30
P30
36
P31
37
P32
38
P33
39
P34
40
P35
41
P36
44
P37
45
P40
46
P41
47
P42
48
P43
49
P44
50
P45
51
P46
53
P47
54
P50
55
P51
56
P52
57
P53
58
P54
59
P55
60
P56
61
P57
64
VSS
2
VSS
12
VSS
23
VSS
63
D0
68
D1
69
D2
70
D3
71
D4
72
D5
74
D6
75
D7
76
VDD
33
VDD
73
NC
3
NC
22
NC
62
NC
43
P00
4
P01
5
P02
6
P03
7
P04
8
P05
9
P06
10
P07
11
A0
77
A1
78
A2
79
A3
80
RD
66
WR
65
CS
67
RST
1
P60
31
P61
32
P62
34
P63
35
VSS
52
VSS
42
R276
330
+5V
R274
47K
CN6
24
DOORCARD
R922
4.7K
CN5
33 CO1
34 CO2
41 CO3
DTMFG
3.58MHz
A3
A1
D4
D2
D5
IORD
CS(COG/A)
D6
D0
A2
D7
RESET
D3
A0
IOWR
D1
VMDTMF1
VMDTMF2
CO2
CO1
BGM
CO3
VAG
Q210A
VAG
D210A
VAG
Q210B
R235B
680K
D210B
VAG
Q210C
R235C
680K
D210C
R923
OPEN
+5V
C282
0.033
CONF1,CONF2,CONF3 MUTE1,MUTE2,MUTE3 DL1,DL2,DL3 DS1,DS2,DS3 SHUNT1,SHUNT2,SHUNT3 HD1,HD2,HD3 BELLA1,BELLA2,BELLA3 BELLB1,BELLB2,BELLB3
CONF1
CONF2
CONF3
MUTE1
MUTE2
MUTE3
DL1
DL2
DL3
DS1
DS2
DS3
SHUNT1
SHUNT2
SHUNT3
HD1
HD2
HD3
BELLA1
BELLA2
BELLA3
BELLB1
BELLB2
BELLB3
DTMF3
DL3
DTMF3
SHUNT3
MUTE3
HD3
CONF3
DTMF1
DL1
DTMF2
HD2
CONF2
MUTE2
SHUNT2
DL2
BELLB3
D5
D4
D6
D7
A1
A3
A0
A2
CS(COG/A)
RESET
D0
DTMF1,DTMF2,DTMF3
DTMF2
DTMF1
IORD
IOWR
BELLA3
BELLA2
BELLB2
BELLA1
BELLB1
CO1,CO2,CO3
SHUNT1
MUTE1
CONF1
HD1
3.58MHz
PAD1,PAD2,PAD3
CDT1,CDT2,CDT3
PAD1
PAD2
PAD3
PAD1
PAD2
PAD3
CDT1
D3
DS1
DS2
DS3
CDT2
CDT3
VMDTMF2
VMDTMF1
D1
D2
CDT3
CDT3
CDT2
CDT2
CDT1
CDT1
CO3
CO2
CO1
BGM
CO1
CO2
CO3
DTMFG
TO CALL ID
CARD/PAY TONE
CARD
KX-TA308 MAIN BOARD NO.2 (2/2)
MUSIC ON
HOLD SW
SHUNT
SW
MUTE
SW
CONF
SW
HD
SW
DTMF
SW
DTMF SW
DTMF AMPLIFIER
CO 1
CONTROL
CO 2
CONTROL
CO 3
CONTROL
DTMF
GENERATOR
DTMF GENERATOR
CONTROL
NORMAL
0V
CO G/A
NORMAL 5V
NORMAL 5V
NORMAL 5V
5V
DATA
0V
5V
ADDRESS
VOICE MAIL
INTEGRATION CONTROL
0V