Circuit Operating Descriptions
Samsung Electronics
13-3
1) F/B terminal of PQIZ1 determines output duty cyle.
2) C-E (Collector-Emitter) of PQIZ1 and F/B potential of PQIZ1 are same.
13-1-3 Internal Block Diagram (Internal Block Diagram of S.M.P.S. Circuit)
Smoothing
Circuit
Rectified Circuit
Line Filter
Power IN
(110V)
Noise
Removal
(SNUBBER)
PWM Control
Circuit
(ICE3B2065
P
)
Converter
Voltage
Detection
Circuit
3.0V Rectified
Smoothing Circuit
5.4V Rectified
Smoothing Circuit
12V Rectified
Smoothing Circuit
3.3V Rectified
Smoothing Circuit
12V Rectified
VoltageCircuit
5V Rectified
VoltageCircuit
O
U
T
P
U
T
33V Rectified
Smoothing Circuit
Fig. 13-4
Summary of Contents for DVD-R130/XAA
Page 4: ...14 Reference Information 14 1 14 4 14 1 About IEEE 1394 14 1 CONTENTS ...
Page 10: ...Precautions 1 6 Samsung Electronics MEMO ...
Page 22: ...Product Specification 2 12 Samsung Electronics MEMO ...
Page 49: ...Samsung Electronics 6 1 6 Exploded View and Parts List 6 1 Cabinet Assembly Page 6 2 ...
Page 52: ...Exploded Views and Parts List 6 4 Samsung Electronics MEMO ...
Page 73: ...Samsung Electronics 9 1 9 Wiring Diagram ...
Page 74: ...Wiring Diagram 9 2 Samsung Electronics MEMO ...
Page 77: ...PCB Diagrams Samsung Electronics 10 3 FIC1 DIC5 DIC4 VIC1 CONDUCTOR SIDE ...
Page 80: ...PCB Diagrams 10 6 Samsung Electronics 10 3 Key PCB COMPONENT SIDE CONDUCTOR SIDE ...
Page 81: ...PCB Diagrams Samsung Electronics 10 7 10 4 Sub PCB COMPONENT SIDE CONDUCTOR SIDE ...
Page 82: ...PCB Diagrams 10 8 Samsung Electronics MEMO ...
Page 114: ...Operating Instructions 12 18 Samsung Electronics MEMO ...
Page 130: ...Circuit Operating Descriptions 13 16 Samsung Electronics MEMO ...
Page 134: ...Reference Information 14 4 Samsung Electronics MEMO ...