Circuit Descriptions
Samsung Electronics
6-5
6-1-3 Internal Block Diagram
6-1-3 (a) Internal Block Diagram of S.M.P.S. Circuit
Smoothing
Circuit
Rectified Circuit
Line Filter
Power IN
(85~265V)
Noise
Removal
(SNUBBER)
PWM Control
Circuit
(1L0380)
Converter
Voltage
Detection
Circuit
FLT Driving
Circuit
3.3V Rectified
Smoothing Circuit
5V Rectified
Smoothing Circuit
8V Rectified
Smoothing Circuit
-8V Rectified
Smoothing Circuit
3.3V Rectified
VoltageCircuit
5V Rectified
VoltageCircuit (x2)
Motor 8V
1 Port
8V Rectified
VoltageCircuit
-8V Rectified
VoltageCircuit
O
U
T
P
U
T
Fig. 6-9
6-1-3 (b) PIC1 (STR-G6153T) Internal Block Diagram
Voltage
Ref.
UVLO
V c c
Drain
Source
GND
S e n s e
S
Q
R
S
Q
R
OSC.
Vck
32V
Feedback
LEB
Reset
7.5V
5v
Reset
Thermal
Protection
OVP
2uA
6.3V
Sync.
2.5R
Voffset
Rsense
R
+
_
+
_
1mA
Control IC
Sense
FET
5
O C P
2
4
1
3
Fig. 6-10
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 ...