Description Of Major Ics - JVC KS-FX621 Service Manual

QQ
3 7 63 1515 0
4.1 CXA2559Q (IC401) : Head amp.
• Pin layout
1
10
• Block diagram
TE
L 13942296513
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Description of major ICs

30
21
31
7k/12k
32
300k
-
33
+
F2
34
30k
35
45k
36
30k
37
F1
+
38
-
300k
39
7k/12k
40
x ao
y
i
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SECTION 4 8
100k
T2
X1
BIAS
MUTE
Q Q
3 6 7 1 3
TAPE EQ
FWD/RVS
Vcc
LPF
+
-
F3
X1
T1
100k
u163
.
2 9 9 4 2 8
24dB
20
19
MS MODE
18
17
1 5 0 5 8 2 9 9 4
16
15
MS ON/
OFF
14
DET
13
12
11
24dB
m
co
KS-FX621
9 9
2 8 9 9
(No.49825)1-21