Circuit Descriptions
6-8
Samsung Electronics
6-3 System Control
6-3-1 Outline
The main micom peripheral circuit is composed of 16bit Micom (MIC1 ; TMP93CM41F), 8M EPROM (MIC8 ; AM27-
C080) for Microcode and data save, 512 byte EE-PROM (MIC5 ; KS24C020) for permanent storage of data needed at
power off, MIC4 (74AC573) to latch only address in the bus where address and data are mixed, address decoder
(MIC7 ; 74HC00) for selection of ex-ternal device chip and 20MHz clock oscillator for micom operation. The Micom
(MIC1 ; TMP93CM41F) mounted in main board analizes the key commands of front panel or instructions of remote
control through communication with Micom (FIC1 ; LC86P6232) of front and controls the devices on board to exe-
cute the corresponding commands after initializing the devices connected with micom on board at power on.
6-3-2 Block Diagram
RIC1
RF AMP
KS1461
SIC1
DIGITAL SERVO
KS1452
VIC1
A/V DECODER
ZIVA-3
VIC50
VIDEO ENCODER
SAA7128/7120
AIC1,2,3,4
D/A CONVERTER
AK4324
DIC1
DATA PROCESSOR
KS1453
MIC2
ADDR LATCH
74AC573
MIC1
MAIN MICOM
TMP93CM41F
MIC8
EPROM
AT27C080
MIC5
EEPROM
KS24C020
MICOM
BLOCK
HIGH ADDRESS
LOW ADDRESS
DATA BUS
FIC1
FRONT MICOM
LC86P6232
MIC7
ADDR DECODER
74HC00
Fig. 6-13
Summary of Contents for DVD-709
Page 23: ...Reference Information 2 16 Samsung Electronics MEMO ...
Page 57: ...5 18 Samsung Electronics Disassembly Reaasembly MEMO ...
Page 97: ...Exploded Views and Parts List 8 8 Samsung Electronics MEMO ...
Page 109: ...9 12 Samsung Electronics Electrical Parts List MEMO ...
Page 115: ...PCB Diagrams 11 2 Samsung Electronics 11 1 Main COMPONENT SIDE SOLDER SIDE ...
Page 116: ...PCB Diagrams Samsung Electronics 11 3 11 2 Jack ...
Page 119: ...Wiring Diagram 12 2 Samsung Electronics MEMO ...
Page 121: ...Schematic Diagrams 13 2 Samsung Electronics 13 1 S M P S ...
Page 122: ...Schematic Diagrams Samsung Electronics 13 3 13 2 Main Power Supply ...
Page 123: ...Schematic Diagrams 13 4 Samsung Electronics 13 3 Main Micom ...
Page 124: ...Schematic Diagrams Samsung Electronics 13 5 13 4 Servo ...
Page 126: ...Schematic Diagrams Samsung Electronics 13 7 DVD 909 OPTION 13 6 Audio ...
Page 127: ...Schematic Diagrams 13 8 Samsung Electronics 13 7 5 1 Channel Audio DVD 909 Only ...
Page 128: ...Schematic Diagrams Samsung Electronics 13 9 13 8 RF ...
Page 129: ...Schematic Diagrams 13 10 Samsung Electronics 13 9 ZiVA ...
Page 130: ...Schematic Diagrams Samsung Electronics 13 11 13 10 DSP ...
Page 132: ...Schematic Diagrams Samsung Electronics 13 13 13 12 Component DVD 909 Only Option ...
Page 134: ...Schematic Diagrams Samsung Electronics 13 15 13 14 Mute ...
Page 136: ...Schematic Diagrams Samsung Electronics 13 17 13 17 Deck ...
Page 137: ...Schematic Diagrams 13 18 Samsung Electronics 13 18 Remote Control ...
Page 140: ...4 TABLE OF CONTENTS DVD YURO909 709 11 4 95 9 59 AM Page 4 ...