3/4
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(j)
(i)
(10)
(1
1)
(12)
(13)
(14)
(15)
KX-TEA308
NE
MAIN NO.2 (3/4)
C209
0.022
R234
NC
R235
2.2K
D220
R237
4.7K
R238
1K
+15V
+3.3V
+15V
R232
27K
PTXE[0]
PTXE[1]
PTXE[2]
PTX[0]
PRX[0
]
R231
27K
1u
C211
Q214
E
C
B
Q21
3
E
C
B
Q212
E
C
B
DG
DG
DG
DG
TP237
TP239
TP253
TP252
TP251
TP257
TP258
TP259
TP245
TP238
VAG
DG
R239
47K
Q209
E
C
B
TP240
IC200
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
T201
2
4
6
7
9
10
RA200
10K
1
2
3
4
5
6
7
8
D222
TP256
TP254
TP246
TP248
TP247
TP255
Q210
E
C
B
AG
AG
TP260
TP261
RXD
TXD[4]
TXD[3]
TXD[2]
TXD[1]
C204E
50V/2.2
AG
ZNR201E
ZNR202E
4
TP207E
TP204E
ZNR200E
0.01u
C200E
Q209E
E
C
B
T200E
1
3
4
5
TP202E
3
L204E
1.5mH
FG
AG
VAG
TP205E
TP210E
TP214E
68
1/4W
R204E
TP206E
TP230E
2
6.8K
R200E
RL201E
2
3
4
TP219E
FG
Q200E
E
C
B
D202E
Q202E
E
C
B
TP215E
RL201E
7
6
5
TH2E
270
R220E
D208E
3
D203E
0.01u
C201E
AG
TP212E
ZNR203E
C208E 50V/1u
CN200E
1
EXT[5]
EX
P
TXPWR
+15V
+15V
+27V
Q215
VAG
R240
100
C214
2.2u
DG
VAG
TP281
22
1/4W
R202E
FG
0.01u
C209E
0.01u
C207E
0.01u
C210E
RA201
NC
4
1
2
3
6
7
8
5
AG
J204E
NC
TP201E
J205E
NC
L205E
12
3
4
TP232E
TP200E
TP231E
J203E
NC
J202E
NC
NC
R222E
C202E
10u
TXD
TXD[8]
TXD[7]
D1E
EXT[5]
TXD[5]
TXD[5]
TXPWR
TXPWR
TXD[6]
EXP
RXD
RXD
RXD
RXD
TE
RE
b
m
b
m
1
2
3
1
2
D
C
B
A
78
11
12
10
9
6V
ANALOG
SW
PROTECTOR
0V
3.3V
0V
32
µ
s
3
µ
s
3.3V
0V
32
µ
s
1.2
µ
s
16ms
8ms
4ms
15V
0V
4ms
3.3V
0V
8ms
3.3V
0V
16ms
3.3V
0V
72
KX-TEA308NE
Summary of Contents for KX-TEA308NE
Page 5: ...1 2 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 5 KX TEA308NE ...
Page 6: ...6 KX TEA308NE ...
Page 12: ...6 NAMES AND LOCATIONS 7 CONNECTION 7 1 SERIAL INTERFACE CONNECTION 12 KX TEA308NE ...
Page 15: ...9 BLOCK DIAGRAM 9 1 SYSTEM BLOCK DIAGRAM 15 KX TEA308NE ...
Page 27: ...27 KX TEA308NE ...
Page 39: ...12 2 NO DIAL TONE 39 KX TEA308NE ...
Page 40: ...12 3 CANNOT DIAL 40 KX TEA308NE ...
Page 42: ...12 7 CANNOT SEND DTMF DIALING 12 8 CANNOT RECEIVE CALL DIAL TONE 42 KX TEA308NE ...
Page 43: ...12 9 CANNOT SEND A HOLD ON MUSIC 43 KX TEA308NE ...
Page 47: ...14 TERMINAL GUIDE OF ICS TRANSISTORS AND DIODES 47 KX TEA308NE ...
Page 49: ...16 FIXTURES AND TOOLS 49 KX TEA308NE ...
Page 50: ...17 CABINET AND ELECTRICAL PARTS LOCATION 50 KX TEA308NE ...
Page 51: ...18 ACCESSORIES AND PACKING MATERIALS 51 KX TEA308NE ...
Page 65: ...65 KX TEA308NE ...
Page 92: ...23 KX TE82460NE 2 PORT DOORPHONE CARD 92 KX TEA308NE ...
Page 93: ...23 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 93 KX TEA308NE ...
Page 105: ...24 KX TE82492NE 2 CHANNEL VOICE MESSAGE CARD 105 KX TEA308NE ...
Page 106: ...24 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 106 KX TEA308NE ...
Page 110: ...24 5 TROUBLESHOOTING GUIDE 24 5 1 PBX cannot work 110 KX TEA308NE ...
Page 111: ...24 5 2 Cannot Erase 24 5 3 Cannot Record Playback 111 KX TEA308NE ...
Page 119: ...25 KX TE82493NE 3 PORT CALLER ID CARD 119 KX TEA308NE ...
Page 120: ...25 1 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED 120 KX TEA308NE ...
Page 133: ...26 KX A227X BACK UP BATTERY CABLE 133 KX TEA308NE ...
Page 134: ...26 1 ACCESSORIES AND PACKING MATERIALS 134 KX TEA308NE ...