Read Panasonic KX-TDA0173 / KX-TDA0173XJ / KX-TDA0173X (serv.man2) Service Manual Supplement online
3.3. No.3
28
RL251
12
1
IC253
1
2
3
8
4
0.1u
C258
3
0.1u
C251
RL251
4
3
5
L252
220
0.1u
C260
CN4
3
26
L251 220
100
R255
0.1u
C252
RL251
9
10
8
+15V
J202
NC
100
R254
100
R251
1
L203A
L204A
0.1u
C259
0.1u
C254
0.22u
C257
J201
NC
D251
100mA 80V
1
2
0.1u
C253
CN4
2
Q251
50V/100mA/150mW/4.7K
E
C
B
VOUT[0]
VOUT[2]
VOUT[3]
PT_POW[0]
PT_CUR[0]
CN3
27
2
DIAG_R
DIAG_T
DG
16V/1u
C263
FIL251
1
2
3
+5V
C261
1u
C256
2.2u
DG
TP303
C262
0.1u
PFRLY
TP251
TP255
TP252
TP256
TP287
TP261
TP262
TP266
TP273
TP274 TP283
TP267
TP263
TP271
TP268
TP275
TP264
TP277
TP260
TP300
TP302
TP299
TP298
TP296
TP297
TP301
TP304
TP305
+5V
VOUT[1]
L204C
2200
/100Hz
TP253
RL252
4
3
5
J203 NC
L203D
2200
/100Hz
/100Hz
31
9
8
4
TP257
35
37
7
TP254
L203B
2200
/100Hz
29
RL252
9
10
8
10
L204D
2200
/100Hz
/100Hz
CN4
1
CN3
30
5
L204B
2200
/100Hz
/100Hz
12
CN3
33
L203C
2200
/100Hz
6
11
CN4
4
34
J204
NC
CN3
36
32
TP282
TP281
TP280
TP279
TP290
TP291
TP292
TP293
TP294
TP295
RL252
12
1
TP259
+5V
C277
0.1u
100K F
R261
NC
R259
+5V
NC
R260
TP343
U6AB
1
6
2
+3.3V
U6AB
4
3
5
+3.3V
TP258
TP353
PT_POW[1]
PT_CUR[1]
PT_POW[2]
PT_CUR[2]
TP355
+3.3V
U6CD
4
3
5
PT_CUR[3]
PT_POW[3]
+3.3V
U6CD
1
6
2
TP354
TP352
AG
AG
AG
AG
AG
TP270
TP284
TP269
TP265
TP276
TP285
TP272
NC
C255
AG
AG
AG
CLK
TP370
RA260 10K
4
3
2
1
5
6
7
8
9
10
+5V
IC251
4ch CODEC
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
TP371
+5V
RA261 10K
1
2
3
4
5
6
7
8
9
10
J115
NC
L713
0
PG
PTG
L715
0
TP948
PG
PTG
PG
PTG
PG
PTG
PG
PTG
PG
PTG
+40V
D2A
NC
12
PG
PTG
PG
SLTG
PG
PTG
PG
PTG
PG
PTG
PG
PTG
PG
PTG
Q53A
45V/100mA/150mW
E
C
B
Q54A
50V/100mA/150mW
E
C
B
PG
SLTG
PG
PTG
TP14A
U1A
4
3
5
Q4A
NC
E
C
B
NC
R5A
NC
R22A
U1A
1
6
2
L2A
NC
R27A
D1A
NC
R4A
TP3A
C11A NC
TP31A
U2A
1
6
2
ZNR1A
TP30A
TP10A
U4A
4
3
5
NC
R26A
NC
R1A
FG
TP15A
TP7A
TP2A
TP12A
TP1A
NC
R21A
U3A
1
6
2
+40V
NC
R24A
TP8A
TP6A
TP26A
TP11A
NC
R6A
U3A
4
3
5
TP5A
+15VPT
TP35A
TP32A
L1A
U4A
1
6
2
Q1A
NC
E
C
B
ZNR2A
TP28A
NC
C2A
NC
R3A
NC
R2A
TP29A
Q2A
E
C
B
TP33A
TP25A
TP27A
TP24A
TP34A
TP4A
C10A NC
U2A
4
3
5
RA1A NC
4
3
2
1
3
2
1
8
7
6
5
TP9A
NC
R23A
NC
R7A
NC
R25A
AG
TP78A
TP83A
U52A
1
6
2
U52A
50V/100mA/150mW
4
3
5
50V/10u
C55A
TP52A
TP51A
TP84A
TP85A
TP55A
TP81A
220
R76A
TP79A
RL51A
12
1
+15V
D53A 100mA/80V
1
2
Q58A
50V/100mA/150mW/4.7K
E
C
B
TP62A
TP77A
D55A
100mA/80V
12
TP64A
TP82A
TP80A
TP73A
TP58A
TP65A
TP70A
TP72A
TP63A
TP67A
TP66A
TP71A
TP76A
TP74A
TP75A
TP69A
TP68A
TP60A
TP61A
TP59A
TP57A
TP54A
TP56A
TP53A
TP22A
TP23A
50V/10u
C57A
NC
R18A
NC
R17A
+30V
Q57A
50V/100mA/150mW/4.7K
E
C
B
Q51A
50V/1A/1W
E
C
B
Q52A
50V/1A/1W
E
C
B
NC
R9A
NC
C6A
NC
C7A
NC
R11A
TP19A
NC
R14A
10K
R16A
NC
C5A
NC
R15A
NC
C4A
T1A
10
9
5
4
7
6
2
1
TP18A
TP17A
C9A
NC
TP21A
NC
R12A
+5VPT
NC
R8A
C8A
NC
NC
R13A
U5A
1
6
2
TP20A
NC
R10A
TP16A
NC
C3A
U5A NC
4
3
5
22
R75A
22
R72A
D52A
100mA/80V
12
IC1A
5
6
7
RL51A
9
10
8
10K
R68A
68
1/4W
R61A
220
R74A
RL51A
4
3
5
56K F
R70A
100K F
R73A
6.8K
R54A
68 1/4W
R62A
50V/10u
C56A
100K F
R66A
ZNR51A
D51A
250mA Vz3.9v
1
2
RL52A
4
3
5
D54A
100mA/80V
12
J51A
NC
221/4W
R60A
33K
R52A
0.01u
C53A
FG
IC1A
1
2
3
4
8
56K
R53A
50V/4.7u
C51A
4.7K
R77A
0.039u
C54A
68P
C60A
22 1/4W
R59A
56K F
R69A
RL52A
9
10
8
12K
R58A
300 F
R63A
100K F
R71A
33K
R57A
RL52A
1
12
68P
C59A
1K 1W
R51A
300 F
R67A
47K
R64A
50V/10u
C58A
0.01u
C52A
ZNR52A
6.8K
R55A
J52A
NC
100K F
R65A
15K
R56A
+15V
NC
R78A
D3A
12
ZNR53A
DG
DG
DG
TP100A
TP278
0
R265
0
R266
TP999
TP998
FG
D56A
Vz33v
1
2
SCREW
W202
XSB3+6VW
SCREW
W201
XSB3+6VW
BELL[0]
RA
TA
EST[0-7],DTL[0-7],DTH[0-7]
DIAG[1]
BELL[1]
BELL[2]
D2A
D1A
DR[0-7],DTMFR[0-7]
DTH[1]
DTL[1]
DTMFR[1]
TD
TC
D2B
RC
D2C
RB
TB
D1B
D1C
D1D
RD
D2D
DTH[2]
DTL[2]
DIAG[2]
DTMFR[2]
DIAG[3]
VOUT[3]
DTL[3]
DTH[3]
DTMFR[3]
BELL[3]
DR[2]
DIAG_T
DIAG_R
DR[0]
DR[1]
DR[3]
VOUT[2]
DTMFR[0]
VOUT[1]
EST[1]
HOOK[1]
EST[0]
HOOK[0]
EST[2]
HOOK[2]
HOOK[3]
EST[3]
DIAG[0]
DTH[0]
DTL[0]
VOUT[0]
BELL
BELL
BELL
BELL
VREF_C1
VREF_C1
VREF_C1
VREF_C1
b
m
C
B
SAME AS A
D
SAME AS A
m
SAME AS A
b
A
b
m
m
b
b
m
b
m
(1)
(2)
(11)
~
(10)
(12)
KX-TDA0173 SCHEMATIC DIAGRAM NO.3
5V
0
2.5V
2.5V
AG
D57A
1
Vz5.6v
16
KX-TDA0173 / KX-TDA0173XJ / KX-TDA0173X
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