Panasonic KX-TA308 - Page 12

(h)
(i)
(j)
(1) (2)(3)(4)(5) (6) (8) (9)(7)
(10)(11)(12)(13)(14)(15)(16) (17) (18)(19) (20)
2/4
KX-TA308 MAIN BOARD NO.3 (2/4)
(21)(22) (23) (24) (25) (26)
(27)
(28)
R905
220K
C905
0.0033
C904
0.1
R951
27K
C903
0.047
R901
100K
R902
100K
R903
100K
IC900
TONEAMP
5
6
7
R159
100K
C130
0.1
X101
3.58M
Q502
+12V
Q503
+12V
Q504
+12V
+12V
C502
0.022
C122
0.1
R160
100K
D401
IC400
BGMAMP
5
6
7
D400
R402
6.8K
C404 OPEN
R404 33K
Q400
+12V
R408
47K
+5V
R409
470
R410
470
IC502
(4*8)CROSSPOINT
28
VDD
12
CS
14
VSS
15
VEE
22
RST
4
NC
5
NC NC
18 19
NC
7
X0
9
X1
11
X2
13
X3
21
STR
16
AY 0
17
AY 1
20
AY 2
8
AX0
10
AX1
6
D ATA
3
Y0
2
Y1
1
Y2 Y3
27 26
Y4
25
Y5
24
Y6
23
Y7
R532
47K
R533
47K
R534
47K
C114
0.1
C131
0.1
C132
0.022
R193
100K
C133
0.1
C135
0.1
R192
100K
C116
0.1
C400
1
C401
1
IC204
43
5
IC114
34
5
IC114
89
6
IC401
BGMIC
21
3
CN11
EXTJACK
CN9
PAGJACK
IC402
12
13
IC402
43
5
IC402
98
6
IC402
11 10
12
R952
47K
+12V
C405
0.1
J114
0
J115
OPEN
J118OPEN
R157
0
STD3
3.58MHz
SD3
ACK3
SD4
ACK4
STD4
BGM
VMDTMF2
VMDTMF1
620Hz
350Hz
DTMFG
SD1
STD1
ACK1
STD2
SD2
ACK2
19INT4
23PAGIN
18BGM
17TONE2
16TONE1
15DTMFG
VAG
VAG
VAG
VAG
R403
150K
J119
R401
6.8K
VAG
VAG
R405
2.2K
+5V
C134
0.022
C146
0.022
IC121
DTMFR4(DISA)
INPUT
1
NC
2
PD
3
OSCO
4
OSCI
5
6
NC
7
Vss
SD
9
ACK
10
STD
11
EST
12
NC
13
Vdd
14
LOAD
8
IC120
DTMFR3R(DISA)
INPUT
1
NC
2
PD
3
OSCO
4
OSCI
5
6
NC
7
Vss
SD
9
ACK
10
STD
11
EST
12
NC
13
Vdd
14
LOAD
8
+5V
+5V
IC104
DTMFR2
INPUT
1
NC
2
PD
3
OSCO
4
OSCI
5
6
NC
7
Vss
SD
9
ACK
10
STD
11
EST
12
NC
13
Vdd
14
LOAD
8
C402
1
VAG
+5V
IC105
DTMFR1
INPUT
1
NC
2
PD
3
OSCO
4
OSCI
5
6
NC
7
Vss
SD
9
ACK
10
STD
11
EST
12
NC
13
Vdd
14
LOAD
8
C403
1
C145
0.022
C406
0.1
C407
0.01
D405
D406
L402
L401
J402
J401
C408
0.22
R412
1K
R954
OPEN
R955
OPEN
A1
A0
A6
A5
A4
INT4
VMDTMF2
VMDTMF2
620Hz
350Hz
VMDTMF1
VMDTMF1
EXTPAGINGSW
STD1
ACK1
SD1
STD2
ACK2
SD2
ACK3
STD3
ACK4
STD4
SD3
SD4
DTMFR1
IOWR
PAGIN
BGM
TONE2
TONE1
BGMSW
D0
CS(4*8)2
RESET
TONE1
TONE2
DTMFG
3.58MHz
BGM
BGM
L:INTBGM
H:EXTBGM
DTMF RECEIVE
DISA1
DISA2
CROSS POINT
VOICE MAIL
INTEGRATION
LOW PASS FILTER
4+8
NORMALY
DTMF RECEIVER 2
DTMF RECEIVER 1
EXT MUSIC
JACK
EXT PAGING
JACK
0V
0V
5V
3.58MHz