Panasonic KX-TA308 Service Manual page 11

1/4
OGMSW2
OGMSW1
CN4
39 R70 D0
D0 22
39 R71 D1
D1 21
39 R72 D2
D2 20
39 R73 D3
D3 19
39 R74 D4
D4 18
39 R75 D5
D5 17
DISA CARD
39 R76 D6
CONNECTOR
D6 16
39 R77 D7
D7 15
OGM1
OGM1 31
OGM2
OGM2 32
R59 39
CS(DISADTMF)
CS(DISADTMF) 23
+24V 29 +24V
IORD
IORD 30
+5V 27 +5V
+5V 28
CN6
VAG 33 VAG
330 R30
DHK1 23
VAG 34
330 R31
DHK2 22
AG 25 330 R32
DHK3 21
AG 26
330 R33
DHK4 20
330 R34
DCN1 19
330 R35
DCN2 18
R36
330
DCN3 17
330 R37
DCN4 16
330 R38
DOPN1 15
330 R39
DOPN2 14
330 R40
DOPN3 13
330 R41
DOPN4 12
330 R42
DOORPHONE CARD
BUSY1 11
R43
330
CONNECTOR
BUSY2 10
330 R44
DRLY1 9
330 R45
DRLY2 8
DOOR1 26
DOOR2 25
+24V 6
+24V 7
VAG 4
VAG 5
AG 3
AG 2
NC 1
EXT1
EXT1
EXT2
EXT2
EXT3
EXT3
EXT4
EXT4
EXT5
EXT5
EXT6
EXT6
EXT7
EXT7
EXT8
EXT8
CO3
CO3
CO2
CO2
CO1
CO1
CN3
CO1 30
CO2 29
CO3 32
CO4 31
CO5 34
CO6 33
DOOR1 27
DOOR2 28
DTMF1 25
DTMF2 26
PAGOUT 20
INT1 24
INT2 21
INT3 22
+5VS
DHK1
DHK2
DHK3
DHK4
DCN1
DCN2
DCN3
DCN4
DOPN1
DOPN2
DOPN3
DOPN4
BUSY1
BUSY2
DRLY1
DRLY2
DOOR1
DOOR2
+24V
VAG
CO1
CO2
CO3
CO4
CO5
CO6
DOOR1
DOOR2
DTMFR1
DTMFR2
PAGOUT
INT1
INT2
INT3
(1) (2) (3)(4)(5) (6) (7)
+12V
44 VDD 6
NC
40 CS 15
IC500 NC
18 VSS NC 16
(8*16)CROSSPOINT
22 VEE 28
NC
RESET
3 RST 29
NC
38
NC
37
X0
36
X1
35
X2
CROSS POINT
34
X3
33
8 x 16
X4
32
X5
9
X6
10
X7
11
X8
12
X9
13
X10
14
X11
31
X12
30
X13
7
X14
8
X15
R537 33K
39 41 43 1 23 21 19 17
C113
0.001
7
IC113
INT PAGING
AMPLIFIER
(8) (9) (10)(11)(12)(13)(14) ( 15)(16)(17)
+12V
28
12
14
15
22
CO1
R501 330
CO2 R502 330
CO3 R503 330
CO4
R504 330
CO5
R505 330
CO6 R506 330
DOOR1 R507 1K
DOOR2
R508 1K
DTMFR1
DTMFR2
C521
PAGIN
0.022
R525
INT1
0
INT2
R521
6.8K
INT3
INT4
C522
0.022
R526
0
R522
6.8K
R535
6
22K
5
C523
0.022
R527
VAG VAG
0
R523
6.8K
C524
0.022
R528
0
(18) ( 19) (20) (21)(22)
KX-TA308 MAIN BOARD NO.3 (1/4)
NC
4
VDD
NC
5
CS
NC
18
VSS
NC
19
VEE
RST
Y0
IC501
Y1
(4*8)CROSSPOINT
Y2
Y3
CROSS POINT
Y4
4 x 8
Y5
Y6
Y7
VAG
VAG
+12V
VAG
OGMSW1
+12V Q500
VAG
OGMSW2
Q501
INT
B/N
VAG
R524
6.8K
TONE
C902
0.0068
+5V
R904
120K
C901 R950
0.1 39K C900
2
VAG
1
0.068
3
IC900
TONEAMP
VAG
LOW PASS
(27)
(28)
(23)(24) FILTER (25) (26)
(a)
(b)
(c)
(d)
(e)
(f)
(g)