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L1A
D1A
27
U4A
TP24A
ZNR1A
R21A
1M
TP34A
TP26A
PT_POW[0]
C10A 0.1u
FG
4
5
3
6
TP28A
2
7
TP35A
1
8
PT_CUR[0]
TP30A
+3.3V
U4A
1
RA1A
2
10K
TP25A
6
R24A
U6AB
R23A
TP352
ZNR2A
4.7M
D2A
TP27A
C11A 1u
2
L2A
J201
J51A
TP51A
TP53A
NC
NC
TP251
m
10
TA
9
b
8
26
RL251
RL51A
8
9
L203A
b
m
10
RL52A
TP255
CN4
FG
2
J202
J52A
TP52A
TP54A
NC
NC
TP252
m
3
RA
4
b
1
5
4
5
L204A
m
b
3
RL251
RL51A
TP256
CN4 3
DIAG_T
DIAG_T
DIAG_R
DIAG_R
CN3
3
28
PG
1
PT_POW[1]
CN4
PT_CUR[1]
CN3
TP257
D1B
30
D2B
RL252
5
B
10
TP253
9
L203B
8
TB
29
2200
J203 NC
/100Hz
J204
L204B
NC
RB
4
2200
5
/100Hz
4
TP254
3
6
RL252
TP258
31
+3.3V
CN4
4
5
4
3
U6AB
TP353
PT_POW[2]
PT_CUR[2]
CN3
D1C
33
D2C
8
C
L203C
TC
32
2200 /100Hz
L204C
RC
7
2200 /100Hz
9
+3.3V
1
34
2
6
U6CD
TP354
PT_POW[3]
PT_CUR[3]
CN3
D1D
36
D2D
11
D
L203D
TD
35
2200
/100Hz
L204D
RD
10
2200
/100Hz
12
+3.3V
37
4
5
3
U6CD
TP355
D251 100mA
2
+15V
W201
SCREW
XSB3+6VW
W202
SCREW
XSB3+6VW
KX-TDA0170 SCHEMATIC DIAGRAM NO.3
R1A
22K
TP2A
6
TP29A
2
+40V
4
TP4A
U1A
U3A 1
R22A
1
2
PG
3
R2A
150K
3
6
PTG
PTG
5
100k
PG
U1A
TP8A
6
4
TP5A
2
PG
TP7A
TP10A
PTG
TP9A
Q4A
U2A 1
E
+15VPT
3
B
R78A
5
TP33A
Q2A
C
E
22
TP32A
PG
50V/1A/1W
4
E
U2A
PTG
TP100A
1M
PG
B
C
Q1A
TP11A
D1A
PG
PTG
B
50V/1A/1W
TP6A
C
PTG
D56A Vz33v
TP1A
1 2
TP66A
TP64A
50V/1A/1W
C
@
R59A
E
B
Q52A
22
1/4W
B
TP61A
Q53A
m
C
E
5
TP56A
R55A
45V/100mA/150mW
b
4
3
C52A 6.8K
C58A
50V/10u
0.01u
Q51A
ZNR51A
TP63A TP67A
50V/1A/1W
C
E
@
R60A
B
22
1/4W
B
TP60A
Q54A
C
E
FG
10
R54A
50V/100mA/150mW
b
TP55A
PG
6.8K
C57A
8
9
50V/10u
m
SLTG
RL52A
SLTG
C55A
50V/10u
TP68A
C56A
50V/10u
TP57A
U52A
TP59A
TP62A
3
R53A
6
R51A
R56A
56K
4
1
5
15K
R57A
1K 1W
C54A
R52A
33K
0.039u
33K
C51A
R58A
TP65A
TP58A
D51A
50V/4.7u
PG
12K
250mA Vz3.9v
PTG
PTG
SAME AS A
SAME AS A
SAME AS A
80V
@
1
RL251
1
12
RL252
R251
TP260
1
12
100
C
TP259
B
Q251
E
50V/100mA/150mW/4.7K
PG
PTG
U3A
+5VPT
A
5V
5
0
TP12A
R9A
T1A
+40V
U5A
TP17A
39 1/10W
6
TP20A
10
4
C4A
TP19A
2
TP15A
1
9
5
16V/1u
R11A
C2A
R8A
680
560 1/10W
50V/2.2u
C5A
16V/1u
R12A
DG
4
PG
7
1
680
DG
TP18A
R10A
5
6
2
PTG
TP21A
3
39 1/10W
TP16A
U5A 50V/100mA/150mW
+15V D53A 100mA/80V
+30V
50V/100mA/150mW/4.7K
2
1
TP81A
RL51A
1
12
@
1/4W
R62A
68
R76A
TP79A
TP72A
C60A
220
E
68P
R63A
R69A
300 F
R75A
R65A
22
56K F
100K F
2
8
TP78A
1
TP69A
TP71A
3
R72A
4
R66A
IC1A
22
100K F
C59A
TP75A
AG
R70A
68P
56K F
PG
R71A
TP76A
2.5V
100K F
R73A
6
R67A
7
100K F
5
300 F
TP74A
IC1A
U52A
+15V
TP70A
D54A
2
100mA/80V
TP77A
R64A
47K
R74A
2
1
C
B
TP73A
220
TP80A
E
PG
Q57A
R68A
50V/100mA/150mW/4.7K
PTG
10K
PFRLY
R13A
DR[0]
R16A
4.7k F
2.2K F
2.5V
R14A
1.5K
DG
C8A 0.1u
TP22A
DTH[0]
C6A
R17A
TP278
VREF_C1
68P
1k
C7A
R18A
1k
C255
NC
68P
C9A
0.1u
R15A
DTL[0]
1.5K
TP23A
BELL
Q58A
+5V
C
TP82A
DIAG[0]
B
RA260 10K
R77A
+5V
4.7K
PG
PG
PTG
PTG
EST[0]
TP83A
VOUT[0]
VOUT[0]
TP279
C251
0.1u
TP270
DTMFR[0]
TP84A
HOOK[0]
BELL[0]
TP85A
DR[1]
DTH[1]
DTL[1]
EST[1]
BELL
DIAG[1]
VOUT[1]
VREF_C1
TP280
VOUT[1]
DTMFR[1]
C252
0.1u
HOOK[1]
TP271
+5V
TP371
BELL[1]
RA261 10K
DR[2]
DTH[2]
DTL[2]
EST[2]
BELL
DIAG[2]
VOUT[2]
VREF_C1
TP281
VOUT[2]
DTMFR[2]
C253
0.1u
HOOK[2]
TP272
BELL[2]
DR[3]
DTH[3]
DTL[3]
EST[3]
BELL
DIAG[3]
VOUT[3]
VREF_C1
TP282
VOUT[3]
DTMFR[3]
C254
HOOK[3]
0.1u
TP277
BELL[3]
+5V
+5V
R265
R259
0
NC
TP999
TP287
8
IC253
3
1
4
2
TP998
R266
AG
0
AG
(1)
TP370
C277
0.1u
AG
+5V
R261
J115
100K F
NC
IC251
L713
TP343
0
4ch CODEC
FIL251
TP303
1
3
VDDD 24
2
L715
GNDD 21
0
C256
C261
C262
35
SI1_1
2.2u
1u
0.1u
36 SI1_0
DG
VDDA12 52
TP948
37
SB1_2
C258
C263
38 SB1_1
GNDA1 50
0.1u
16V/1u
39 SB1_0
AG
40 SO1_1
VREF 56
DG
41
C257
S01_0
0.22u
AG
51
GNDA2 54
Vout1
49
Vin1
AG
VDDREF 57
C259
0.1u
GNDA3 59
AG
VDDA34 61
C260
0.1u
GNDA4 63
48
SI2_1
AG
47 SI2_0
46
SB2_2
45 SB2_1
44 SB2_0
43 SO2_1
42
S02_0
53 Vout2
55
Vin2
1
SI3_1
2
SI3_0
3
SB3_2
4 SB3_1
5 SB3_0
6 SO3_1
FSC 31
7
PCLK 32
S03_0
TP297
60 Vout3
CLK
DRB 30
58
TP298
DXB 29
Vin3
TCB 28
TP290
DRA 27
DXA 26
TP291
TCA 25
TP296
RESET 23
MCLK 22
TP300
CS 17
TP301
14
DCLK 18
SI4_1
TP302
13 SI4_0
DIN 19
TP299
12
SB4_2
DOUT 20
TP292
11 SB4_1
CHCLK1 33
TP293
10 SB4_0
CHCLK2 16
9 SO4_1
TP294
INT12 34
8
INT34 15
S04_0
TP295
62 Vout4
64
Vin4
R254
100
(2)
(10)
EST[0-7],DTL[0-7],DTH[0-7]
(11)
DR[0-7],DTMFR[0-7]
(12)
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