Panasonic KX-TEB308CA / KX-TE82460X / KX-TE82493X / KX-A227X (serv.man3) Service Manual / Supplement ▷ View online
13
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
F
E
H
G
456
3
2
1
2/4
KX-TEB308CA
MAIN NO.3 (2/4)
(f)
(g)
(h)
(i)
(j)
(k)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(1
1)
(12)
(13)
(14)
(15)
C650
0.0056
C651
0.0056
DG
TP386
TP389
TP385
TP384
R665
27k
350Hz
440Hz
620Hz
480Hz
EXT_BGM
R633
NC
R631
100k
R632
100k
R630
100k
BGM_EXT
A[1]
A[5]
D[0]
A[2]
A[7]
IOWR
A[6]
TONE1
TONE2
EXT_BGM
RESET
CS_XP3
C610
0.001
VAG
VAG
IC611
3
2
1
C607
0.0068
IC609
3
2
1
C602
0.1
IC609
5
6
7
C603 0.1
C606
0.0033
VAG
VAG
J602
N.C
J603
0
TP326
TP373
TP327
TP331
TP372
VAG
C600
0.047
C601
0.068
VAG
TP347
C609
0.022
+12V
VAG
TP
31
7
TP
31
0
TP
31
9
TP
30
4
TP
30
7
TP
30
1
TP
31
3
TP
31
5
PAGIN
TP344
TP345
TP346
TP352
TP351
AG
DG
TP
30
5
TP
30
8
TP
30
2
TP
31
1
TP
30
6
TP
31
8
TP
31
2
TP
31
6
TP
31
4
TP
30
3
TP
30
0
TP
30
9
TP340
TP339
C616
1000P
DG
TONE
IC603
1
Y2
2
Y1
3
Y0
4
NC4
5
NC5
6
DATA
7
X0
8
AX0
9
X1
10
AX1
11
X2
12
CS
13
X3
14
VSS
15
VEE
16
AY0
17
AY1
18
NC18
19
NC19
20
AY2
21
STR
22
RST
23
Y7
24
Y6
25
Y5
26
Y4
27
Y3
28
VDD
C403
NC
R605
1.2k
R602
1.2k
R606
1.2k
R607
1.2k
R616
0
R625 39k
R626
27k
R600
1.2k
R621
120k
R620
220k
R608
0
R615
0
R603
1.2k
R641
100k
R604
1.2k
R601
1.2k
R614
1k
R612
33k
R613
22k
R640
100k
R831
NC
VAG
R830
NC
VAG
CROSS POINT
4 8
INT PAGING AMPLIFIERS
TONE
LOW PASS FILTER
350Hz
3.3V
0V
400Hz
3.3V
0V
620Hz
3.3V
0V
No signal
14
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
78
11
12
10
9
D
C
B
A
3/4
KX-TEB308CA
MAIN NO.3 (3/4)
(a)
(b)
(c)
(d)
(e)
C666
0.022
C664
0.022
IC605
8
4
IC604
8
4
IC611
8
4
C672
0.022
DSP_INTCID[1]
C674
0.022
IC609
8
4
DSP_INTCID[2]
C667
0.022
IC610
8
4
C653
470P
C655
470P
IC605
3
2
1
IC605
5
6
7
C646
0.056
C633
0.033
C648
0.056
DSP_OGMOUT[1]
VAG
C639
0.033
C637
0.1
VAG
VAG
C645
470P
DSP_OGMIN[1]
C614
N.C
DSP_MDMTX
VAG
C619
0.056
C615
470P
VAG
DSP_MDMRX
C620
470P
IC604
5
6
7
C622
470P
IC604
3
2
1
VAG
C611
N.C
C612
0.1
C618
0.056
C675
0.0015
C676
0.0082
C677 0.1
IC608
3
2
1
AG
VAG
C678 0.1
+3.3V
IC608
5
6
7
D606
6.2L
VAG
C669
0.022
IC608
8
4
C679
0.1
C681
0.1
TP375
TP371
TP369
TP377
TP370
TP363
TP368
C608
25V/100u
G
A
G
A
G
A
G
A
AG
AG
AG
AG
DSP_DTMFG
IC611
5
6
7
+15V
+15V
TP381
TP355
TP354
TP359
TP360
TP361
TP364
TP374
TP383
TP390
AG
TP397
TP391
C621 0.1
TP376
TP392
TP356
TP393
C657 0.1
TP357
TP353
TP365
TP362
TP358
TP378
TP382
TP394
AG
+15V
+15V
+15V
+15V
+15V
TP411
XTP_VAG
R673
2.7k
R643
470
R661
39k
R634
0
R642
1.2k
R666
12k
R650
47k
R646
1.2k
R648
47k
R638
0
R636
1.2k
R651
47k
R669
N.C
R649
47k
R644
1.8k
R647
1.5k
R635
1.8k
R639
1.8k
R653
12k
R637
1.8k
R660
39k
R645
470
R662
12k
R654
15k
R652
39k
R667
10k
R658
27k
R668
4.7k
R657
0
R659
27k
VAG
OGM AMPLIFIERS
MODEM AMPLIFIERS
DTMF AMPLIFIERS
( CO, VOICEMAIL INTEGRATION )
6V
15
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
F
E
H
G
78
11
12
10
9
4/4
KX-TEB308CA
MAIN NO.3 (4/4)
(f)
(g)
(h)
(i)
(j)
(k)
Q[4]
Q[3]
STD1
TOE1
DG
X600
TP400
TP388
TP387
C659
0.1u
TP401
TP398
TP399
IC606
IN-
2
GS
3
IN+
1
VREF
4
INH
5
PWDN
6
OSC2
9
Q2
13
Q1
12
TOE
11
VSS
10
Q4
15
NC16
16
STD
17
EST
18
NC7
7
OSC1
8
Q3
14
ST/BT
19
VDD
20
R670
330k
Q[2]
Q[1]
Q[4]
Q[3]
Q[2]
Q[1]
STD2
STD2
TOE2
TOE2
STD1
TOE1
Q[4]
Q[3]
Q[2]
Q[1]
+140V
+3.3V
C662 0.1
+3.3V
DG
DG
+3.3V
C663
0.22
C661
0.22
C660 0.1
Q[1-4],STD1,STD2,TOE1,TOE2
DG
TP403
TP406
TP408
TP402
TP409
TP405
TP404
TP407
RA600
10k
1
2
3
4
5
6
7
8
6
7
8
RA603
10k
1
2
3
4
5
6
7
8
6
7
8
TP944
TP919
+140V
C921
50V/0.1u
TP950
D902
C918
50V/100
TP907
TP935
IC902
10
9
8
TP909
IC902
5
6
7
C916
0.1u
TP958
TP939
TP917
TP956
D907
600V 1A
12
Q904
E
C
B
+27V
TP934
IC901
SW IC
1
COMP
2
FB
3
ISENS
4
RT/CT
5
GND
6
OUT
7
VCC
8
VREF
C914
470P
C910
250V/10
BELL_POWER
+27V
C919
0.047u
TP955
C911
250V/10
Q903
E
C
B
TP931
TP
95
1
-90V
C908
0.082u
DG
+15V
TP929
DG
TP921
C920
0.1u
C909
0.1u
TP916
+3.3V
PC903
1
23
4
PC901
1
2
3
4
C902
0.1/250V
D905
Vz=30v
TP945
TP904
25Hz
Q910
50V/100mA/150mW/47k
E
C
B
Q911
E
C
B
D906
600V 1A
1
2
TP959
TP905
BLPWR
TP942
TP
95
7
TP949
C906
0.082u
IC902
1
2
3
4
11
IC900
4
Vref
1
A1
3
C
2A
2
5A
5
6A
6
TP937
C917
0.1u
BELL
TP943
TP902
TP954
TP914
TP953
Q908
E
C
B
TP952
T900
1
2
4
5
6
7
8
9
10
TP928
DG
TP947
TP946
TP911
D904
TP948
IC902
12
13
14
C904
0.1u
TP924
TP922
Q907
E
C
B
IC607
IN-
2
GS
3
IN+
1
VREF
4
INH
5
PWDN
6
OSC2
9
Q2
13
Q1
12
TOE
11
VSS
10
Q4
15
NC16
16
STD
17
EST
18
NC7
7
OSC1
8
Q3
14
ST/BT
19
VDD
20
R926
5.6k
R920
100
R672
330k
R941
750 F
R930
390k F
R919
10k
R932
20k F
R940
33k F
R952
22k!!
R934
180k F
R943
1.2M
R916
47k
R948
22
R927
47k
R939
20k F
R908
680
R945
30k
3216
R942
750 F
R905
47k
R909
680
R922
1M
R950
22k
R912
100
R671
27k
R949
2.7
R951
10k
R938
1k
R910
47k
R924
10k
R947
2.2k
R936
4.7k
R914
47k
R946
10k
R902
150
R944
22k
R953
0
Q912
S
1
2
3
3
G
4
D
5
6
7
8
7
8
DTMF
RECEIVER 1
DTMF RECEIVER 2
3.58Mhz
16
KX-TEB308CA/KX-TE82460X/KX-TE82493X/KX-A227X
1.3.4.
MAIN No.4 (ASIC, Memory Block)
Change from the Original Service Manual Section 21.4.
D
C
B
A
456
3
2
1
1/4
KX-TEB308CA
MAIN NO.4 (1/4)
(a)
(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
(j)
(k)
(m)
(n)
(p)
(q)
(r)
(s)
(t)
(u)
(v)
(w)
(x)
(y)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
C723
0.1
TP638
TP633
TP639
TP634
TP635
TP637
TP632
C722
0.1
TP636
R726
39
R727
39
R728
39
R725
39
IC707
1C
1
+
2
V+
3C
1
-
4C
2
+
5C
2
-
6
V-
7
T2OUT
8
R2IN
9R
2
O
U
T
10T2IN
11T1IN
12R1OUT
13
R1IN
14
T1OUT
15
GND
16
VCC
NCS_TAM
NCS_DPH
NCS_CID
9
8
11
10
IC711
13
12
CS_XP3
CS_XP2
CS_XP1
FSI
FSO
FSO
FSCK
FSRB
FSRB
FCSN[0]
84
FS
I
85
FS
O
86
DV
DD
28
6
87
DG
ND
87
88
FS
CK
89
FS
RB
90
FC
S0
n
91
FC
S1
n
TP
58
5
TP
59
0
TP
58
7
TP
58
9
TP
59
3
TP
59
7
TP
59
5
83
EY
ES
YN
C
CONF[2]
MUTE[2]
41
41
42
42
43
43
DG
44
44
FWPN[0]
FCSN[0]
FSI
FSRB
A[4]
D[0]
A[3]
A[1]
DET_CID
NCS_TAM
D[2]
A[3]
D[3]
D[2]
D[4]
D[5]
D[5]
D[3]
D[6]
A[4]
D[7]
A[1]
NIOWR
A[2]
D[1]
NIORD
D[0-7],NIORD,NIOWR
NCS_DPH
A[5]
NIOWR
A[0]
DET_TAM
NCS_CID
D[4]
D[1]
D[3]
D[1]
NIORD
D[6]
NIOWR
DET_DPH
D[7]
A[1]
D[7]
D[5]
D[6]
D[0-7],NIORD,NIOWR
D[0-7],NIORD,NIOWR
D[4]
D[0]
A[2]
D[0]
A[2]
D[2]
NRESET
NRESET
RESET
FSO
A[0-21],BHEN,D[8-15],EXDRQ,MRDN,MWRLN,NCS_CID,NCS_DPH,NCS_TAM,NINT_DC,RAMCSN,ROMCSN
NIORD
PAD[1]
BELLA[1]
MUTE[1]
BELLB[1]
SHUNT[1]
CONF[1]
DL[1]
DS[1]
CDT[1]
CDT[2]
CDT[3]
MOH_SW
PAG_SW
TXD0
RXD0
DSR0
DTR0
NINT_DC
NCS_TAM
NCS_DPH
NCS_CID
DTR0
DSR0
DSR0
NINT_DC
FSRB
FSO
FSI
FSCK
FCSN[0]
92
FW
P0
n
93
FW
P1
n
94
P6
0/
IO
CS
16
n
95
P6
1/
IO
CS
17
n
96
P6
2/
IO
CS
18
n
97
P6
3/
IO
CS
19
n
98
P6
4/
IO
CS
20
n
99
P6
5/
IO
CS
21
n
10
0
P6
6/
IO
CS
22
n
10
1
DG
ND
10
1
10
2
DV
DD
31
02
10
3
P6
7/
IO
CS
23
n
10
4
AV
DD
31
04
105
AGND105
106
VREF0
AG
+3.3V
J707
NC
C760
0.1u
C761
0.1u
C758
2.2u
C759
1u
C762
0.1u
FIL705
1
2
3
C764
50V/3.3u
AG
L701
0
C763
0.1u
TP534
TP537
TP561
+3.3V
RA729
10k
2
3
4
1
8
5
6
7
+3.3V
DG
CID[2]
DG
CN708
2DPH
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
VAG
TAM1
+15V
DG
CID[1]
DG
CID[3]
TAM2
CN706
Call ID1 Card
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
DOOR1
DOOR2
DG
DG
DG
+3.3V
CN707
TAM CARD
NC
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
AG
DG
+15V
TP
57
8
TP
57
4
TP
57
6
TP
58
3
TP
57
2
TP
58
0
XTP_DG3
DG
XTP_DG2
DG
DG
DG
XTP_DG1
XTP_DG4
Q700
E
C
B
DG
+27V
DG
+3.3V
IC708
2
4
1
TP514
TP502
TP508
TP510
CN701
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
T[1]
R[1]
+3.3V
AG
PAGIN
DSP_MELODY
EXT_BGM
CO2
CO1
CO3
CID[3]
CID[2]
CID[1]
VAG
+15V
TP835
TONE
4:3H
VAG
TP832
DG
DG
C715
0.01u
C716
NC
+3.3V
L746
0
DG
+3.3V
TP
57
0
TP
56
2
TP
56
6
TP
56
8
LED_SW
D701
20V
DG
AG
C782
0.1u
R709
10k
R708
NC
R706 4.7k
R741
68k
R701
22k
R739
68k
R740
68k
R757
10k
R711
10k
R712
10k
R710
10k
R707
1k
R702
68k
VAG
R820
NC
VAG
R821
NC
+3.3V
IC706
1
WP
2
NC2
3
NC3
4
VCC
5
NC5
6
NC6
7
NC7
8
NC8
9
NC9
10
NC10
11
NC11
12
NC12
13
GND
14
NC14
15
NC15
16
RDY/BSY
17
NC17
18
SI
19
NC19
20
SO
21
NC21
22
NC22
23
NC23
24
NC24
25
NC25
26
NC26
27
NC27
28
NC28
29
NC29
30
CS
31
NC31
32
SCK
DG
C756
0.1u
OPTION CONNECTOR
Click on the first or last page to see other KX-TEB308CA / KX-TE82460X / KX-TE82493X / KX-A227X (serv.man3) service manuals if exist.