Read Panasonic KX-TDA0175 / KX-TDA0175XJ / KX-TDA0175X (serv.man2) Service Manual Supplement online
3.2. No.2
CLK
UHW
C_CS[0]
DCLK
FH
nRST
DHW
DIN
DOUT
+5V
DG
0.1
C208
0.22
C204
AG
0.1
C206
CN201
T
DIAG_R
DIAG_T
CN201
R
MWDC0
1
CN200
26
PF_RLY
RL200A
8
1
D204
1
2
+15V
DG
RL200B
8
1
2
CN200
27
CN200
28
3
CN200
29
4
RL200C
8
1
RL200D
8
1
RL200A
3
2
4
RL200A
6
7
5
0.1
C207
IC203
1
2
3
8
4
IC201
5
SB3_0
6 SO3_1
S03_0
7
GNDA1 50
INT34
15
VDDA34 61
INT12
34
DRB 30
PCLK 32
FSC 31
DOUT 20
DIN 19
DXB 29
RESET 23
MCLK 22
CS 17
DCLK 18
4
SB3_1
SI3_1
1
2
SI3_0
SB3_2
3
VDDD 24
VDDA12 52
GNDA2 54
9 SO4_1
S04_0
8
10 SB4_0
11 SB4_1
SI4_1
14
13 SI4_0
SB4_2
12
39 SB1_0
38 SB1_1
SI1_1
35
36 SI1_0
SB1_2
37
44 SB2_0
45 SB2_1
SI2_1
48
47 SI2_0
SB2_2
46
VDDREF 57
40 SO1_1
S01_0
41
VREF 56
43 SO2_1
S02_0
42
GNDA3 59
GNDA4 63
GNDD 21
CHCLK1
33
CHCLK2
16
TCB
28
DRA
27
DXA
26
TCA
25
Vout1
51
Vin1
49
53 Vout2
Vin2
55
60
Vout3
Vin3
58
62 Vout4
Vin4
64
C205
0.1
AG
R207
22
R208
22
TP423
TP424
TP425
TP426
TP427
TP422
TP429
TP430
TP431
TP432
TP433
TP434
TP435
TP436
TP437
TP438
TP439
TP440
TP441
TP443
TP444
TP445
TP446
TP447
TP448
TP460
TP459
TP450
TP468
TP466
TP465
TP464
TP463
TP461
TP462
RL200B
3
2
4
CN201
H
CN201
L
RL200B
6
7
5
MWDC0
RL200C
3
2
4
CN202
T
CN202
R
RL200C
6
7
5
MWDC0
RL200D
3
2
4
CN202
H
CN202
L
RL200D
6
7
5
MWDC0
DG
FIL200
1
2
3
+5V
C217
1
C218
2.2
R209
10K
R210
10K
R211
10K
R212
10K
R213
10K
R214
10K
R215
10K
R216
10K
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
TP451
TP452
TP453
TP454
TP455
TP456
TP457
TP458
Q202
E
C
B
Q203
E
C
B
R225
10K
R226
10K
R227
6.8K
DG
DG
TP604
TP605
TP467
R228
100K
R230
N.C
R229
N.C
TP606
C221
0.1
C222
0.1
C223
0.1
C224
0.1
TP428
TP442
TP449
TP610
TP611
TP612
TP613
TP411A
TP409A
TP410A
TP414A
TP416A
TP415A
TP417A
+5V
DG
TP408A
RL202A
1
8
+15V
+30V
D203A
TP407A
TP420A
TP413A
TP418A
TP412A
Q201A
E
C
B
Q200A
E
C
B
RL201A
1
8
220
R206A
+15V
DG
D202A
1
2
220
R204A
+15V
D201A
1
2
RL203A
2
9
J202A
DG
RL202A
6
7
5
ZNR20A
47V
1K 1W
R203A
RL201A
3
2
4
ZNR21A
22V
RL202A
3
2
4
FG
RL201A
6
7
5
33K
R202A
DG
+15V
1K
R201A
D200A
1
2
ZNR22A
FG
L200A
TP402A
TP406A
TP405A
TP403A
L201A
TP400A
TP401A
IC200A
8
Vref
7
A_IN
4
A_OUT
3
HOOK
10
BELL
11
RLY
1
DG
2 +5V
12 +30V
9 RING
5 R1
6 T1
14 R0
15 T0
13
AG
R234A
10K
DG
TP411B
TP409B
TP410B
TP414B
TP416B
TP415B
TP417B
TP408B
RL202B
1
8
+15V
D203B
TP407B
TP413B
TP412B
Q200B
E
C
B
220
R204B
+15V
D201B
1
2
RL203B
2
9
J202B
DG
RL202B
6
7
5
ZNR20B
47V
1K 1W
R203B
ZNR21B
22V
RL202B
3
2
4
FG
33K
R202B
DG
+15V
1K
R201B
D200B
1
2
ZNR22B
FG
L200B
TP402B
TP403B
L201B
TP400B
TP401B
IC200B
8
Vref
7
A_IN
4
A_OUT
3
HOOK
10
BELL
11
RLY
1
DG
2 +5V
12 +30V
9 RING
5 R1
6 T1
14 R0
15 T0
13
AG
C200B
50V/10u
TP411C
TP409C
TP410C
TP414C
TP416C
TP415C
TP417C
TP408C
RL202C
1
8
+15V
D203C
TP407C
TP413C
TP412C
Q200C
E
C
B
220
R204C
+15V
D201C
1
2
RL203C
2
9
J202C
DG
RL202C
6
7
5
ZNR20C
47V
1K 1W
R203C
ZNR21C
22V
RL202C
3
2
4
FG
33K
R202C
DG
+15V
1K
R201C
D200C
1
2
ZNR22C
FG
L200C
TP402C
TP403C
L201C
TP400C
TP401C
IC200C
8
Vref
7
A_IN
4
A_OUT
3
HOOK
10
BELL
11
RLY
1
DG
2 +5V
12 +30V
9 RING
5 R1
6 T1
14 R0
15 T0
13
AG
C200C
50V/10u
TP411D
TP409D
TP410D
TP414D
TP416D
TP415D
TP417D
TP408D
RL202D
1
8
+15V
D203D
TP407D
TP413D
TP412D
Q200D
E
C
B
220
R204D
+15V
D201D
1
2
RL203D
2
9
J202D
DG
RL202D
6
7
5
ZNR20D
47V
1K 1W
R203D
ZNR21D
22V
RL202D
3
2
4
FG
33K
R202D
DG
+15V
1K
R201D
D200D
1
2
ZNR22D
FG
L200D
TP402D
TP403D
L201D
TP400D
TP401D
IC200D
8
Vref
7
A_IN
4
A_OUT
3
HOOK
10
BELL
11
RLY
1
DG
2 +5V
12 +30V
9 RING
5 R1
6 T1
14 R0
15 T0
13
AG
C200D
50V/10u
50V/10u
R235
6.8K
+15V
R236
56
Q204A
Q203A
R207A
390
1M
R208A
DG
TP421A
TP422A
TP423A
TP421B
Q203B
TP422B
R207B
390
TP423B
DG
Q204B
1M
R208B
TP421C
Q203C
TP422C
R207C
390
TP423C
DG
Q204C
1M
R208C
TP421D
Q203D
TP422D
R207D
390
TP423D
DG
Q204D
1M
R208D
C202A
25V/4R7
C202B
25V/4R7
C202C
25V/4R7
C202D
25V/4R7
C201A
50V/10u
C201B 50V/10u
C201C
50V/10u
C201D 50V/10u
L202
220
L203
220
R274
100
R275
100
TP652
TP653
TP654
TP655
R282
10k
+3.3V
L46
0
TP679
TP716
TP717
+30V
+5V
+30V
+5V
+30V
+5V
DG
DG
DG
AG
AG
AG
AG
DG
C209
16V/1
16V/1
L50
0
ZNR23A
47V
ZNR23B
47V
ZNR23C
47V
ZNR23D
47V
C204A 0.1
C203A 0.1
C204B 0.1
C203B
0.1
C204C
0.1
C203C
0.1
C204D 0.1
C203D
0.1
C203
0.1
C210
1
TP421
RL203A
5
1
10
6
RL203B
5
1
10
6
RL203C
5
1
10
6
RL203D
5
1
10
6
FG
50V/10u
C200A
DHW
DOUT
CLK
C_CS[0]
FH
DCLK
nRST
EST[0]
MW[0]
BELL[0]
BELL[0]
DIAG[0]
RA
TA
DIAG[1]
BELL[1]
MW[1]
EST[1]
MW[2]
EST[2]
BELL[2]
DIAG[2]
EST[3]
DIAG[3]
BELL[3]
MW[3]
VREF_C1
VOUT[0]
DTMFR[0]
VOUT[2]
DTMFR[2]
VOUT[3]
DTMFR[3]
VOUT[1]
DTMFR[1]
HOOK[0]
HOOK[1]
HOOK[3]
HOOK[2]
VREF_C1
TB
RB
HOOK[2]
VOUT[2]
MW[2]
BELL0
TC
RC
DTMFR[2]
VREF_C1
BELL[2]
HOOK[3]
VOUT[3]
MW[3]
TD
RD
DTMFR[3]
VREF_C1
BELL[3]
BELL[1]
HOOK[1]
MW[1]
VOUT[1]
DTMFR[1]
VREF_C1
BELL0
BELL0
MW[0]
BELL0
VOUT[0]
DTMFR[0]
HOOK[0]
BELL[0]
DIAG[0]
DIN
UHW
b
b
m
m
m
m
b
b
m
m
b
b
m
m
b
b
C
D
B
m
b
b
m
m
b
m
b
b
m
A
m
b
b
m
b
m
m
b
b
m
b
m
m
b
b
m
b
m
(1)
KX-TDA0175 SCHEMATIC DIAGRAM NO.2
20
22
21
23
24
D205A
DG
D205B
DG
D205C
DG
D205D
DG
14
KX-TDA0175 / KX-TDA0175XJ / KX-TDA0175X
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