Address Latch; Door Phone - Panasonic KX-TA308 Service Manual

(29) (30) (31) (32) ( 33) (34)(35)

DOOR PHONE

CONTROL PORT
(h)
(i)
31 EXTPAG
32 BGMSW
33 LEDSW
34 TEST
35 440Hz
36 25Hz
37 RS232CTXD
38 RS232CRXD
10K
R14
39 P32
R15 10K
40 P33
41 MODEMTXD
42 MODEMRXD
R16 10K
+5VS 43 P36
44 VDD
DOPN1
45 DOPN1
DOPN2
46 DOPN2
DOPN3
47 DOPN3
DOPN4
48 DOPN4
BUSY1
49 BUSY1
BUSY2
50 BUSY2
DRLY1
51 DRLY1
DRLY2
52 DRLY2
53 GND
RTCCS
54 RTCCS
RTCCLK
55 RTCCLK
RTCDATA
56 RTCDATA
+5VS
57 VDD
R136 10K
58 AVSS
59 DEFAULT
+5VS
60 CODE1
R194
47K
R195
47K
R196 47K
+5VS
+5VS
39 R137
SYSTEM
DOOR PHONE CLEAR SW
DOOR OPENER
CONTROL PORT
+5V
+5VB +5VS
5
5 5
3
3 3
(j)
+12V
8
4
(36) (37)(38) (39) (40) (41)
+5VS
OPEN 120
119
DEX
RAS 118
L114
117
IORD
L113
IOWR 116
L112
RD 115
L111
114
WRL
WRH 113
L110
ASTB 112
R105 10K
111
IC(L)
R106 10K
D8/D16 110
IC100
GND 109 +5VS
108
VDD
CPU(V55) A23 107
A22 106
CPU
105
A21
A20 104
R107 39 A19
103
A19
R108 39 A18
A18 102
R109 39 A17
A17 101
R111 39 A16
100
A16
R113 39 A15
A15 99
R114 39 A14
A14 98
R116 39 A13
A13 97
R117 39 A12
A12 96
R118 39 A11
A11 95
R119 39 A10
A10 94
R120 39 A9
A9 93
R121 39 A8
A8 92
AD7 91
R122 39
R123 39
R124 39
R125 39
R126 39
R127 39
R128 39
R129 39
5V
R69 47K
+5VS
+5VS
R68 47K
0V
R67 47K
R66 47K
R65 47K
R64 47K
R63 47K
R62 47K
+5V +12V +12V
14 14 14
VAG
7 7 7
IC400
6V
VAG
VAG
1
+12V +12V
+24V
8 8
8
4 4
4
(42) (43) (44) (45)
I/O CS DECORDER
C105
+5V
5V 5V
0.022
0V 0V
1 15
A10
A Y0
2 14
A11
B Y1
13
3
A12
C Y2
4 12
A14
G2A Y3
IC107
5 11
A15
G2B Y4
10
6
A13
G1 Y5
9
Y6
7
Y7
DECORDER
5V
0V

ADDRESS LATCH

C106
+5V
0.022
L122
3 2
A7
1D 1Q
4 5 L121
A6
2D 2Q
7 6 L120
A5
3D 3Q
8 9 L119
A4
4D 4Q
13 12 L118
A3
5D 5Q
14 15 L117
A2
6D 6Q
17 16 L116
A1
IC108
7D 7Q
18 19 L115
A0
8D 8Q
5V
ADDRESS
LATCH
0V
D0,D1,D2,D3,D4,D5,D6,D7
RS232C
DRIVER/
RECEIVER IC
IC117 RS232C
R153
9
39
R154
11
39
R155
12
39
R156
10
39
+12V
1
C1+
3
C1-
4
C2+
3
5
C2-
2
(46) ( 47) ( 48)(49)(50) (52) (51) (53) (54)(55)
CS(EXP308G/A)
CS(8*16)2
CS(4*8)3
CS(EXP08G/A)
CS(8*16)3
CS(4*8)4
CS(DINT)
CS(DISADTMF)
A4
A5
A0
A1
A2
A3
L103
R420
8
39
L101
R421
14
39
FILTER
L104
R422
13
39
L102
R423
7
39
16
VDD +5V
2
V+
6
V-
(56)(57)(58)(59)(60)(61)(62)
D0
D0
D1
D1
D2
D2
D3
D3
D4
D4
D5
D5
D6
D6
D7
D7
RESET
RESET
IOWR
IOWR
IORD
IORD
CS(EXTG/A)
CS(EXTG/A)
A0
A0
A1
A1
A2
A2
A3
A3
CN5
10 NC
11 NC
12 NC
13 NC
43 A4
48 A5
R60 39
44 CS(MODEM)
R61 39
46 CS(CALL1)
R133 39
39 A0
R134 39
42 A1
R170 39
24 A2
R171 39
45 A3
R172 39
D0
25 D0
R173 39
D1
26 D1
R174 39
D2
27 D2
R175 39
D3
CALLER ID CARD
28 D3
R176 39
D4 CONNECTOR
29 D4
R177 39
D5
30 D5
R178 39
D6
31 D6
R179 39
D7
32 D7
R83 39
IORD
37 IORD
R84 39
IOWR
38 IOWR
R85 39
RESET
40 RESET
R86 39
MODEMRXD
47 MODEMRXD
R87 39
MODEMTXD
49 MODEMTXD
R88 39
MODEMINT
50 MODEMINT
+5V
22 +5V
+24V
23 +24V
35 AG
36 AG
CN7
7 RST
DSR
6 DSR
DTR
4 DTR
RS232CRXD
2 RS232CRXD
RS232CTXD
3 RS232CTXD
5 AG
8 NC
1 NC
9 NC
KX-TA308 MAIN BOARD NO.3 (4/4)
4/4