Ic Block Diagrams - Sony STR-DE225 Service Manual

QQ
3 7 63 1515 0

3-12. IC BLOCK DIAGRAMS

• IC BLOCK DIAGRAMS
IC1 BU1922
16
1
IC701 uPC2581V
TE
L 13942296513
PROTECTOR
REG
1
IC401, IC500 LC7822
1
IN 2
3
OUT
4
5
IN
6
7
OUT 8
9
IN
10
www
OUT
11
12
VEE
CE 13
.
DI
14
CL
15
http://www.xiaoyu163.com
15 14 13
OSCILLATOR
QUALITY BIT
RECONSTRUCTION
AND
GENERATOR
DIVIDER
BIPHASE
DEFFERENTIAL
SYMBOL
DECODER
DECODER
2 3 4
BIAS CIRCUIT
PRE PRE
DRIVE
DRIVE DRIVE
5 6
2 3 4 7 8
LEVEL SHIFT
x ao
y
LATCH
i
SHIFT RESISTOR
http://www.xiaoyu163.com
8
12 11 10
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
57kHz
BANDPASS ALIASING
FILTER
(8th ORDER)
FILTER
CONTAS LOOP
CLOCKED
VARIABLE AND
COMPARATOR
FIXED DIVIDER
CLOCK REGENERATION
AND SYNC
VP1
REFERENCE
VOLTAGE
5 6 7
Q Q
3 6 7 1 3
DRIVE
9 10 11 12 13 14 15
30
IN
29
28
27 OUT
26
25 IN
24
23 OUT
22
IN IN
21
20
OUT
u163
19 VDD
18 RESET
.
17 S
16 VSS
— 27 —
2 9 9 4 2 8
9
ANTI-
8
1 5 0 5 8 2 9 9 4
m
co
9 9
2 8 9 9