Kenwood KAC-X522, Service Manual

Page: 15 / 24

KAC-X522
15
P Q R S T
1
2
3
4
5
6
7
15.0V -15.0V
0V
4.0V
0V
0V
0V
5.0V
3.3V
1.6V
0V
3V
5V
0V
5V
1.5V
3.5V
5V
0V
5V
0V
5V
0V
1.5V
3.5V
5V
0V
1.5
3.5
5V
0V
0V
5V
0V
5V
5.0V
0V
5V
1.5V
3.5V
IC7
PREAMPLIFIER UNIT (X08-415x-xx)
(X09-576x-xx) (B/2)
AUDIO UNIT
A
IC1(2/4)
IC1(3/4)
FAN
CN2
WH2
CN1
ISF,15Hz 24dB/oct
S1
IC1
IC1(1/4)
S2
IC5(4/4)
+10dB type
(4/4)
1SS133
∗
:
:
CN2
CN1
∗ D13
D251
D251
D13
1/2
CN10
X09-A/2
FAN
LCD DRIVER
TP27
2 FAN-GND
1 FAN+B
1
FAN+B
BLUE-LED
FAN-GND
1
2
3
TP18
BMS
2
3
4
5
6
7
8
10
12
13
14
15
9
11
16
17
18
19
20
22
21
TP130
TP132
R111
1K
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
TP94
TP93
TP101
TP100
TP102
R103 470
R104 470
R102 470
R101 470
∗ C105
TP15
TP98
TP99
60
S7
1
TP123
4 3 2 7 6 5
S1
CL
64
DI
63
62
61
DE
DO
OSC
S4 S3 S2 S6 S5
10
9 8
13 12
11
16 15 14
S13 S10 S9 S8 S12 S11
S18
S16 S15 S14
S17
S19
S20
S21
COM2
53
VDD
59
58
57
VSS
VDD2
VDD1
56
55
54
TEST
KI5
KI4
KS5
KS6
52
51
50
KI3
KI2
KI1
49
KS2 KS3
KS4
COM3
KS1
S25
S22
S23
S24
S26
S27
S28
S36 S39 S40
COM1
S37 S38
S32
S29
S30
S31
S33 S34 S35
TP22
TP8
TP9
R33
47K
TP21
TP92
TP128
TP74
R6
22K
5
6
7
R66
39K
10
9
TP28
∗
C68
8
TP32
TP65
TP66
TP37
TP25
TP20
R1
47K
4 5 6
ST/MONO
3 2 1
7 8
R2
C4
0.22
47K
0.22
C3
R5
TP31
0.22
0.22
C6
0.22
R4
130K
TP23
TP183
C64
0.22
0.22
TP29
22K
C5
2
3
0.22
1
4
C63
56K
C66
R64
TP75
R8
47K
7
1 2
TP180
C65
12
13 11
5 4
∗
C67
14
TP76
TP30
TP181
HI P
TP64
I.F.S
ON/OFF
8
3
∗
C20
47K R24
6
R23 47K
R2
9.1
VR1
0.1
R44
2.2K
∗
C19
TP62
R42 15K R41 15K
R43
3.3K
TP78
TP63
C21
0.022
R46
47K
12
13
14
LOW PASS
R45
15K
TP61
TP186
C35
VR3
S1
S2
TP125
S3
TP124
S4
TP121
S5
TP118
S6
TP119
S7
TP117
S8
TP120
S9
TP116
S10
TP122
S11
TP126
S12
TP127
1K
R110
1K
R109
KS2
KS1
TP91
C3
TP90
C2
TP89
C1
TP88
TP129
470
R108
470
R107
KI2
KI1
10K
R114
10K
R115
0.047
C103
0.047
C102
820P C101
68K
R105
TP103
TP104
TP105
TP106
100K R112
0.01
C104
4.7K
R106
TP17
TP16
TP7
TP6
18
19
17
TP11
TP12
TP13
TP14
61
64
63
62
64
63
62
61
TP19
TP10
130K
R3
56K R63
+
47K
R7
39K
R65
0.15 C34
0.1
C33
TP184
TP187
T
R26 56K
0.1
C22
TP2
TP4
TP1
TP5
TP3
2
5
GND
2 FAN+B
1
2
1
3
C251 0.01
0.01
C252
AUDIO-MUTE
AUDIO-SDA
AUDIO-SCL
FAN-GND
BLUE-LED
ILL+B
SW5V
FAN+B
L-DATA-L
L-DATA-L
A-GND
A-GND
ISO-R
D-GND
ISO-L
L-CLK
L-CE
AMP-R
-VCC
+VCC
AMP-L
FAN-
+
+
+
+
(X09-576x-xx)
KAC-PS521
KAC-X521
KAC-X522 0-11
0-10
UNIT
No.
MODEL
NAME
B30-1743-05
B30-1601-05
D13
X08-4150-11 (1/2), X09-5760-11 B/2 (1/1)