Sony STR-W555 Service Manual page 37

IC1701 IR3R42
20 19 18 17
1/2 OSC
1/2
AMP
PHASE
WAVEFORM
SEP.
AMP
REGULATOR
GATE
1 2 3
IC1702 MC14053BCP
B1 1
B0 2
OPEN
C1 3
C.COM 4
OPEN
CO 5
6
INH
7
VEE
OPEN
VSS 8
IC1752 BU1922
16 15
QUALITY BIT
GENERATOR
DEFFERENTIAL
DECODER
1 2
16 15 14 13 12
AMP
PHASE
COMPARATOR
PHASE
COMPARATOR 2
SAMPLE
& HOLD MUTE
BUFFER
4 5 6 7 8 9
VDD
16
B.COM
15
14 A.COM
13
A1
A0
12
11
A
10
B
9 C
14 13 12
OSCILLATOR
RECONSTRUCTION
AND
FILTER
DIVIDER
BIPHASE
SYMBOL
DECODER
3 4 5
11
TRIGGER
10
IC1751 NJM4558D
A OUT 1
A
– +
A IN– 2
B
+ –
A IN+ 3
VEE 4
11 10
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
57kHz
ANTI-
BANDPASS
ALIASING
(8th ORDER)
FILTER
CONTAS LOOP
CLOCKED
VARIABLE AND
COMPARATOR
FIXED DIVIDER
CLOCK REGENERATION
AND SYNC
VP1
REFERENCE
VOLTAGE
6 7
– 53 –
8 VCC
7 B OUT
6
B IN–
5
B IN+
9
8