Aiwa CX-BK33 Service Manual page 70

CX-BK33
QQ
3 7 63 1515 0
– RELAY Board –
IC701, 711, 721 BA6956AN
TSD
1 2 3 4 5
IC601 M61529FP-D60G
TE
L 13942296513
42 41 40 39 38 37
INPUT
ATT
VOCAL
CUT
EXTERNAL INPUT
INPUT ATT ATT
REF
www
1 2 3 4 5 6
.
70
http://www.xiaoyu163.com
CONTROL LOGIC
6 7 8 9
36 35 34 33 32 31 30
TONE CONTROL
(BASS/MID/TREBLE)
+
SURROUND
OR
DPL BUFFER
+
TONE CONTROL
(BASS/MID/TREBLE)
7 8 9 10 11 12 13
x ao
y
i
http://www.xiaoyu163.com
8
– MAIN Board –
IC501 BU4052BCF-E2
2X0 1
2X2 2
3
2XCOM
2X3 4
2X1 5
INH 6
VEE 7
VSS 8
Q Q
3 6 7 1 3
29 28 27
ELECTRICAL
VOLUME
TONE ATT
+
+
TONE ATT
ELECTRICAL
VOLUME
14 15 16
u163
.
2 9 9 4 2 8
16 VDD
15 X2
14 X1
13 XCOM
12 X0
11 X3
10 A
9 B
1 5 0 5 8 2 9 9 4
26 25 24 23 22
BASS
BOOST
MCU
INTERFACE
BASS
BOOST
m
17 18 19 20 21
co
9 9
2 8 9 9