Panasonic KX-TA308 - Section 1 PT Overview

(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
CN30A
1H
4L
CN30A
2T
3R
L302A
0
L303A
0
L305A
1.5mH
L300A
0
L301A
0
ZNR32A
39V
C324A
1
IC303
13
1
14
2
15
3
12
4
1
5
5
6
2
7
4
8
6
INH
8
VSS
7
VEE
16
VCC
9
C
10
B
11
A
3
CON
RLY30A
9
8
10
ZNR31A
39V
T300A
3
16
4
C322A
2.2
C320A
0.022
C321A
0.022
Q301A
R301A
47
R341A
68
+24V
R342A
15K
R303A
47
R310A
10K
R340A
68
Q304A
C330
0.022
+12V
R302A
10K
D302A
2V
D303A
2V
R313A 1
L302B
0
T300B
3
16
4
D302B
2V
C324B
1
R301B
47
C320B
0.022
R342B
15K
CN30B
1H
4L
Q304B
ZNR32B
39V
ZNR30B
39V
R341B
68
C321B
0.022
+24V
L303B
0
R302B
10K
C322B
2.2
L305B
1.5mH
L302C
0
T300C
3
16
4
D302C
2V
C324C
1
R301C
47
C320C
0.022
R342C
15K
CN30C
1H
4L
Q304C
ZNR32C
39V
ZNR30C
39V
R341C
68
C321C
0.022
+24V
L303C
0
R302C
10K
C322C
2.2
L305C
1.5mH
L302D
0
T300D
3
16
4
D302D
2V
L300D
0
C324D
1
R301D
47
C320D
0.022
R342D
15K
CN30D
1H
4L
Q304D
ZNR32D
39V
ZNR30D
39V
R341D
68
L301D
0
CN30D
2T
3R
C321D
0.022
+24V
L303D
0
R302D
10K
C322D
2.2
L305D
1.5mH
L302E
0
T300E
3
16
4
D302E
2V
L300E
0
C324E
1
R301E
47
C320E
0.022
R342E
15K
CN30E
1H
4L
Q304E
ZNR32E
39V
ZNR30E
39V
R341E
68
L301E
0
CN30E
2T
3R
C321E
0.022
+24V
L303E
0
R302E
10K
C322E
2.2
L305E
1.5mH
RLY20A
4
8
6
CN30B
2T
3R
L301B
0
L300B
0
CN30C
2T
3R
L301C
0
L300C
0
R306A
27K
+
-
RLY30A
12 1
R311A
47K
C314A
0.039
D310A
+24V
R315A
1W1K
Q305A
+5V
R305A
56K
R304A
6.8K
Q307A
R340B
68
Q301B
R310B
10K
ZNR31B
39V
R303B
47
D303B
2V
R340C
68
Q301C
R310C
10K
ZNR31C
39V
R303C
47
D303C
2V
R340D
68
Q301D
R310D
10K
ZNR31D
39V
R303D
47
D303D
2V
R340E
68
Q301E
R310E
10K
ZNR31E
39V
R303E
47
D303E
2V
D204
+24V
Q209
RLY20A
16
1
ZNR30A
39V
D306A
R305B
56K
+
-
RLY30B
12 1
D310B
Q307B
R311B
47K
Q305B
D306B
C314B
0.039
R306B
27K
R304B
6.8K
+5V
R305C
56K
+
-
RLY30C
12 1
D310C
Q307C
R311C
47K
Q305C
D306C
C314C
0.039
R306C
27K
R304C
6.8K
+5V
R305D
56K
+
-
RLY30D
12 1
D310D
Q307D
R311D
47K
Q305D
D306D
C314D
0.039
R306D
27K
R304D
6.8K
+5V
R305E
56K
+
-
RLY30E
12 1
D310E
Q307E
R311E
47K
Q305E
D306E
C314E
0.039
R306E
27K
R304E
6.8K
+5V
R315B
1W1K
R315C
1W1K
R315D
1W1K
R315E
1W1K
RLY20A
13
9
11
RLY30A
4
5
3
+24V
+24V
+24V
+24V
R316A
2W/100
R316B
2W/100
R316C
2W/100
R316D
2W/100
R316E
2W/100
RLY30B
9
8
10
RLY30C
9
8
10
RLY30D
9
8
10
RLY30E
9
8
10
RLY30B
4
5
3
RLY30C
4
5
3
RLY30D
4
5
3
RLY30E
4
5
3
R1
T1
Q313A
R317A
3.9
R317B
3.9
Q313B
R317C
3.9
Q313C
R317D
3.9
Q313D
R317E
3.9
Q313E
VAG
VAG
VAG
VAG
VAG
R313B 1
R313C 1
R313D 1
R313E 1
R313F 1
R313G 1
R313H 1
D301A
D300A
D300B
D301B
D300C
D301C
D300D
D301D
D300E
D301E
C323A
NO MOUNT
C323B
NO MOUNT
C323C
NO MOUNT
C323D
NO MOUNT
C323E
NO MOUNT
D307A
D307B
D307C
D307D
D307E
D308A D308B
D308C D308D
D308E
D308F
D308G
D308H
+12V
R312A
OPEN
R312B
OPEN
R312C
OPEN
R312D
OPEN
R312E
OPEN
EXT2
EXT3
T1
R1
HOOK1
BELL
BELL
EXT5
BELL
EXT4
BELL
BELL
BELL1
BELL2
HOOK2
BELL3
HOOK3
BELL4
HOOK4
BELL5
HOOK5
TXPOWER
TXPOWER
TXPOWER
TXPOWER
TXPOWER
EXT1
TXD2
TXD3
TXD4
TXD5
TXD1
RXD
RXD
RXD
RXD
RXD
EXT1
EXT2
EXT3
EXT4
EXT5
KX-TA308 MAIN BOARD NO.1 (1/2)
DC CUT CAPACITOR
PROTECTOR
DC POWER
SUPPLY CIRCUIT
POWER FAILURE RELAY SW
BELL
CIRCUIT
P. F.
RELAY
BELL SIGNAL AC80V
VOLTAGE LIMITER
PROTECTOR
6V
6V
0V
ANALOGUE SW
OVER CURRENT DETECT
PROTECTOR
5V ON HOOK
H=BELL ON
L=BELL OFF
BELL RELAY SW
HOOK DETECT
CIRCUIT
OFF HOOK
0V
+26V