Sony HCD-H77 - Page 43

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e@IC Block Diagrams
e1C51 1C9217P
PRESCALAR
COUNTER
COUNTER [J
RES!STER
PERIOD
(2)
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FOXGSas S xS KF HF F BRS
Teta ee 7 oh
FCOK DEMOOULATOR
Pitch [><
CONTROL
DIGITAL 69)
i VARIABLE ml
67
vss
APTL
APTR
9 0A01
9 DA02
0A03
OA04
5) DA06
DAO0S
Y DAO?
DaA08
DAO?
DIGITAL AUDIO INTERFACE,
ADRESS GENERATOR
eiC81 LA1851N
AM-RF-IN AM-MIX
TU-LED
() TU-ST-RESET
(S$) FM-SD-ADJ
(8) ST-LED
G) | F-BUFF () AM/FM
MUTE
G) AM-SD-ADJ
() AM-1F @) Gno @) acc
IF BUFFER
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FF FF
FF
19KHz
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Lea TRIG 3] LE
O—® b & ‘
VCO-STOP
LT
ATTENATOR
(9B1T COUNTER)
RAM FOR
43TH-ORDER
TIMING GENERATOR
8
Es
@1C222 TDA1543A
LEFT OUTPUT LATCH
LEFT BIT SWITCHES
5 BIT . 1 BIT 1 BIT 6 BIT
PASSIVE PASSIVE PASSIVE PASSIVE
DIVIDER
LE
DIVIDER DIVIDER DIVIDER
SOURCE
e1C101 CXA1372Q
©1501, 1C551 M5226FP
8
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(04 (G) BIAS
2
z
2 .
(6)
©1C701 CXA1101P
e1C253 M54641L
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INPUT
AMP
CONTROL
IN 2)
e1C504 LC7566
ORIVER
eIC406 LB1639
OUT2 vcc ouT1
| ORIVE ciRcUIT CIRCUIT
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IN4 GND V CONT IN2
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CONTROL IN
©1C401, 451, 502, 503, 603, 702, 704
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