Denon AVR-3801 Service Manual page 19

QQ
3 7 63 1515 0
LC72131M (AC: IC507)
LA1265 (S)
(AC: IC502)
22
TE
L 13942296513
1
LA3401 (AC: 503)
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http://www.xiaoyu163.com
17
11
19
18
RF Amp
Buffer
Osc.
21
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http://www.xiaoyu163.com
2 9
8
15
2 3 5
1
FM IF
Level
Level
Det.
Det.
Q Q
3 6 7 1 3 1 5
Mix. AM IF
Reg. AGC
GND
20
22 4 16
co
.
9 4 2 8
6
7
Vcc
P o s t
Q Det
Amp
S Curve
0 5 8 2 9 9 4
LED
Det.
Driver
S meter SD Adj
11 13
14
BU2090F (EX: IC103)
CONTROL CIRCUIT
Vss 1
DATA 2
12-bit SHIFT RESISTER
CLOCK 3
12-bit STRAGE RESISTER
LCK 4
Q0 5
Q1 6
Q2 7
Q3 8
Q4 9
m
AVR-3801
9 9
10
9
12
2 8 9 9
8
18 V
DD
17 OE
16 Q11
15 Q10
14 Q9
13 Q8
12 Q7
11 Q6
10 Q5
19