Kenwood KAC-PS621 Service Manual page 16

U
KAC-PS621/X621
ASS
TP185
VR3
TP182
R77 12K
TP189
C35
TP188
0.022
R72 R73 R74 R76
13
7.5K 10K 2.2K 220K
14
12
V
IC5(4/4)
0V
R29
7
TP63
TP67
8.2K
C25
2
2
C21
10u16
1
0.1 C23
3
+
0.22
IC5(1/4)
TP73
TP64
HI PASS
TP72
VR1
R28
TP71
9.1K
IC5(2/4)
C22 C24
C26
0.1 0.22
5
10u16
7
6
+
5
TP66
TP70
R30
8.2K
HPF,12dB/oct,F=VRcont
D2
32
S32
31
S31
30
S30
29
S29
28
S28
27
S27
26
S26
TP107
25
S25 S21
TP108
24
S24 S20
ED1(COMMON)
TP109
23
S23 S19
TP110
22
S22 S18
TP111
21
S21 S17
TP112
20
S20 S16
TP113
19
S19 S15
TP114
18
S18 S14
TP115
17
S17 S13
3.5V
1.5V
5V
0V
ED1(SEGMENT)
16
X08-4150-10 (2/2)
V
15.0V
C37 C49
0.01 0.01
C38 C48
0.01 0.01
C75 0.033
3
-15.0V
2
IC5
15.0V
(3/4)
C39
IC6(1/2)
9 4
10u16
8
R69 10K
10
+
11
TP68
S4
R34
10K
HPF/OFF/LPF INPUT SENC
TP69
W
-15.0V
-15.0V
15.0V
IC4
TP192 TP43
(1/2)
R55
8
1K
1 3 8
R116
1
390
2
4
4
R13
390
TP54
R19 1K
TP35
C29
1000P
C13
0.01
D1
C30
1000P
0V
TP55
IC6
R20 1K
(2/2)
VR2
5
7 IC4
6
TP56
(2/2)
6
7
R38 R56
5
20K 1K
TP193
TP44
AMP CONT.
ENT
S8
S7
X
C32 10u16
2
+
C31 10u16
5
TP60
+
R11
S3
B M S 47K
C17
OFF/ON
10u16 R9 47K
+
R21 10K
TP53
S3
C18
10u16 R10 47K
+
R22 10K
5.0V
TP41 TP42
8.3V
IC3
4.3V
C9
1u50
+
C10
1u50 TP36
+
TP45
E-VOL
IC1,5 : NJM2058M-ZB
IC3 : E-TDA7409DTR
IC4,6 : NJM4565MD-ZB
IC7 : LC5853NE-E
D1 : MA3082-M
D2 : B30-1694-05
SIGNAL LINE
GND LINE
B LINE
B LINE
CAUTION : For continued safety,
replace safety critical compo-
nents only with manufacturer's
recommended parts (refer to
parts list).
Indicates safety critical com-
ponents. To reduce the risk of
S9
electric shock, leakage-current
or resistance measurements
shall be carried out (exposed
parts are acceptably insulated
from the supply circuit) before
the appliance is returned to the
customer.
• DC voltages are as measured
with a high impedance volt-
meter. Values may vary
slightly due to variations be-
tween individual instruments
or/and units.
KAC-PS621/X621 (2/2)
Y
1
TP59
2
3
0V
4
5
6
7