Panasonic KX-TEB308RU / KX-TE82460X / KX-TE82493X / KX-A227X (serv.man5) Service Manual / Supplement ▷ View online
13
KX-TEB308RU
F
E
H
G
456
3
2
1
2/4
KX-TEB308RU 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)
TP
30
6
TP
31
8
TP
31
2
TP
31
6
TP
31
4
TP
30
3
TP
30
0
TP
30
9
R612
33k
C610
0.001
TP326
R665
27k
C650
0.0056
R641
100k
C651
0.0056
R640
100k
DG
TP373
TP389
TP385
TP384
TP372
R613
22k
R614
1k
VAG
VAG
IC611
3
2
1
TP327
TP331
PAGIN
R831
NC
VAG
VAG
R830
NC
BGM_EXT
A[1]
A[5]
D[0]
A[2]
A[7]
IOWR
A[6]
TONE1
TONE2
EXT_BGM
RESET
CS_XP3
R630
100k
C607
0.0068
IC609
3
2
1
R632
100k
R631
100k
C602
0.1
R620
220k
R621
120k
IC609
5
6
7
R626
27k
350Hz
C603 0.1
C606
0.0033
VAG
R625 39k
440Hz
VAG
620Hz
R615
0
R616
0
J602
N.C
J603
0
480Hz
VAG
C600
0.047
R633
NC
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
TP344
TP345
TP346
TP352
TP351
R608
0
EXT_BGM
AG
DG
TP
30
5
TP
30
8
TP
30
2
TP
31
1
R606
1.2k
R600
1.2k
R602
1.2k
R603
1.2k
R605
1.2k
R607
1.2k
R604
1.2k
R601
1.2k
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
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-TEB308RU
78
11
12
10
9
D
C
B
A
3/4
KX-TEB308RU MAIN NO.3 (3/4)
(a)
(b)
(c)
(d)
(e)
R645
470
C653
470P
IC605
3
2
1
R637
1.8k
R639
1.8k
R635
1.8k
R647
1.5k
R644
1.8k
C646
0.056
R649
47k
C633
0.033
C648
0.056
VAG
C639
0.033
C637
0.1
VAG
R651
47k
C645
470P
C614
N.C
R636
1.2k
VAG
C619
0.056
R638
0
C615
470P
VAG
C620
470P
R648
47k
R646
1.2k
R650
47k
IC604
3
2
1
VAG
R642
1.2k
R634
0
C611
N.C
R643
470
C612
0.1
C618
0.056
R657
C675
0.0015
IC608
3
2
1
R652
39k
VAG
TP375
TP371
TP369
TP377
TP370
TP363
TP368
TP355
TP354
TP359
TP360
TP361
TP364
TP374
TP376
TP356
TP357
TP353
TP365
TP362
TP358
TP378
R654
15k
R653
12k
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
C655
470P
IC605
5
6
7
DSP_OGMOUT[1]
VAG
DSP_OGMIN[1]
DSP_MDMTX
DSP_MDMRX
IC604
5
6
7
C622
470P
0
C676
0.0082
R666
8.2k
C677 0.1
AG
R668
4.7k
C678 0.1
R669
N.C
+3.3V
IC608
5
6
7
D606
6.2L
R673
2.7k
VAG
C669
0.022
IC608
8
4
C679
0.1
C681
0.1
C608
25V/100u
G
A
G
A
G
A
G
A
AG
AG
AG
AG
DSP_DTMFG
IC611
5
6
7
+15V
+15V
TP381
TP383
TP390
AG
TP397
TP391
C621 0.1
R667
10k
TP392
TP393
C657 0.1
R662
12k
TP382
TP394
R661
39k
R658
27k
R660
39k
R659
27k
AG
+15V
+15V
+15V
+15V
+15V
TP411
XTP_VAG
VAG
OGM AMPLIFIERS
MODEM AMPLIFIERS
DTMF AMPLIFIERS
( CO, VOICEMAIL INTEGRATION )
6V
15
KX-TEB308RU
F
E
H
G
78
11
12
10
9
4/4
KX-TEB308RU MAIN NO.3 (4/4)
(f)
(g)
(h)
(i)
(j)
(k)
Q[4]
Q[3]
Q[2]
Q[1]
STD1
TOE1
DG
+3.3V
R670
330k
DG
X600
C661
0.22
C660 0.1
TP400
C659
0.1u
TP401
TP398
TP399
IC606
IN-
GS
IN+
VREF
INH
PWDN
OSC2
9
Q2
13
Q1
12
TOE
11
VSS
Q4
15
NC16
STD
17
EST
18
NC7
OSC1
8
Q3
14
ST/BT
19
VDD
20
TP386
1
4
Q[4]
Q[3]
Q[2]
Q[1]
STD2
STD2
TOE2
TOE2
STD1
TOE1
Q[4]
Q[3]
Q[2]
Q[1]
+3.3V
C662 0.1
DG
R671
27k
+3.3V
C663
0.22
R672
330k
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
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
+140V
TP944
TP919
R940
33k F
+140V
C921
50V/0.1u
TP950
R930
390k F
D902
C918
50V/100
TP907
TP935
IC902
10
9
8
R936
4.7k
TP909
IC902
5
6
7
C916
0.1u
TP958
TP939
TP917
R920
100
TP956
D907
600V 1A
12
Q904
E
C
B
R945
30k
3216
+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
R916
47k
R910
47k
+27V
C919
0.047u
TP955
C911
250V/10
Q903
E
C
B
TP931
TP
95
1
-90V
C908
0.082u
R905
47k
DG
+15V
TP929
DG
TP921
C920
0.1u
C909
0.1u
TP916
+3.3V
PC903
1
23
4
PC901
1
2
3
4
R932
20k F
C902
0.1/250V
D905
Vz=30v
TP945
TP904
25Hz
Q910
50V/100mA/150mW/47k
E
C
B
R934
180k F
R939
20k F
Q911
E
C
B
D906
600V 1A
1
2
R952
22k
TP959
R912
100
TP905
BLPWR
TP942
TP
95
7
TP949
R941
750 F
C906
0.082u
IC902
1
2
3
4
11
IC900
4
Vref
1
A1
3
C
2A
2
5A
5
6A
6
R914
47k
R942
750 F
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
R908
680
TP928
DG
TP947
TP946
TP911
D904
TP948
R949
2.7
IC902
12
13
14
C904
0.1u
R902
150
R909
680
R922
1M
R919
10k
R924
10k
R926
5.6k
TP924
TP922
R927
47k
R938
1k
R943
1.2M
R944
22k
R946
10k
R951
10k
R950
22k
R948
22
R947
2.2k
Q907
E
C
B
R953
0
Q912
S
1
2
3
3
G
4
D
5
6
7
8
7
8
TP388
TP387
2
3
5
6
10
16
7
DTMF
RECEIVER 1
DTMF RECEIVER 2
3.58Mhz
16
KX-TEB308RU
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-TEB308RU 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)
FSI
FSO
FSO
83
EY
ES
YN
C
84
FS
I
85
FS
O
86
DV
DD
28
6
87
DG
ND
87
TP
59
7
TP
59
0
TP
59
5
TP
59
3
C723
0.1
R726
39
TP638
R727
39
TP633
TP639
TP634
R725
39
TP635
R728
39
TP637
TP632
C722
0.1
TP636
IC707
1
C1+
2
V+
3
C1-
4
C2+
5
C2-
6
V-
7
OUT4
8
IN1
9
OUT1
10
IN4
11
IN2
12
OUT3
13
IN3
14
OUT2
15
GND
16
VDD
FSCK
FSRB
FSRB
FCSN[0]
FWPN[0]
88
FS
CK
89
FS
RB
90
FC
S0
n
91
FC
S1
n
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
C760
0.1u
C761
0.1u
C762
0.1u
R739
68k
TP537
TP561
TP
58
5
TP
57
8
TP
57
4
TP
57
6
TP
58
3
TP
58
7
TP
58
9
TP
57
2
TP
58
0
DG
+3.3V
R709
10k
R708
NC
R710
10k
R711
10k
R712
10k
TP
57
0
TP
56
2
TP
56
6
TP
56
8
R757
10k
AG
+3.3V
J707
NC
C758
2.2u
C759
1u
FIL705
1
2
3
C764
50V/3.3u
R740
68k
R741
68k
AG
L701
0
C763
0.1u
TP534
CONF[2]
MUTE[2]
41
41
42
42
43
43
44
44
DG
PAD[1]
BELLA[1]
MUTE[1]
BELLB[1]
SHUNT[1]
CONF[1]
DL[1]
DS[1]
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
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
CDT[1]
CDT[2]
CDT[3]
MOH_SW
PAG_SW
TXD0
RXD0
DSR0
DTR0
NINT_DC
NCS_TAM
NCS_TAM
NCS_DPH
NCS_DPH
NCS_CID
NCS_CID
DTR0
DSR0
DSR0
NINT_DC
FWPN[0]
FCSN[0]
FSCK
FSRB
FSO
FSI
9
8
11
10
C0JBAB000407
IC711
13
12
+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
XTP_DG3
DG
XTP_DG2
DG
DG
DG
XTP_DG1
XTP_DG4
Q700
E
C
B
DG
R701
22k
+27V
DG
+3.3V
IC708
2
4
1
TP514
TP502
TP508
R707
1k
R702
68k
R706 4.7k
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
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
CS_XP3
CS_XP2
CS_XP1
LED_SW
D701
20V
DG
AG
C782
0.1u
VAG
R821
NC
VAG
R820
NC
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
+3.3V
OPTION CONNECTOR
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