
Circuit Operating Descriptions
7-15
Fig. 7-17 Clock Control and Power Failure Detection
C624
C625
R657
IC608
7042
C688
14
16
15
85
86
1
2
3
61
BACKUP DET
AL5.8V
BUSY
D692
D620
(27) 4H’D Control
During trick play (Still, Slow, F-Advance), it is necessary to control pre-amp, Video circuit.
The Micom control pin 29 (C-ROTARY), pin 30 (HD-AMP) of the IC601 during PB period in Slow mode.
These port is applied to Video IC to operate the trick play.
(24) Timer/OTR Control
The timer can preset 6 programs in one year including daily and weekly programs.
Express recording lets the operator record up to 9 hours without programming the timer.
(25) Clock Display
The clock generator inside of the u-COM counts the oscillation signal of XT601 for the timer clock data.
(26) Power Failure Detection
u-COM goes to the power failure mode when the 61 port is lower than 4/5 of AD Vcc level.
Summary of Contents for SV-DVD50
Page 26: ...Exploded View and Parts List 3 10 Samsung Electronics MEMO ...
Page 88: ...VCR Deck Operating Description 8 12 Samsung Electronics Fig 8 14 Mecha Timing Chart ...
Page 102: ...VCR Deck Operating Description 8 26 Samsung Electronics MEMO ...
Page 109: ...Circuit Operating Descriptions 7 7 Fig 7 12 Block Diagram ...
Page 143: ...Circuit Operating Descriptions 7 41 3 Block Diagram Fig 7 38 LA70100M Block Diagram ...
Page 158: ...Block Diagram 10 2 Samsung Electronics MEMO ...
Page 159: ...Samsung Electronics 11 1 11 Wiring Diagram ...
Page 160: ...Block Diagram 11 2 Samsung Electronics MEMO ...
Page 162: ...Schematic Diagrams 12 2 Samsung Electronics 6 1 S M P S ...
Page 163: ...Schematic Diagrams Samsung Electronics 12 3 6 2 Power Drive ...
Page 164: ...Schematic Diagrams 12 4 Samsung Electronics DT701 6 3 Display Function ...
Page 165: ...Schematic Diagrams Samsung Electronics 12 5 6 4 System Control Servo ...
Page 166: ...Schematic Diagrams 12 6 Samsung Electronics 6 5 A V ...
Page 167: ...Schematic Diagrams Samsung Electronics 12 7 6 6 Hi Fi ...
Page 168: ...Schematic Diagrams 12 8 Samsung Electronics 6 7 A2 NICAM ...
Page 169: ...Schematic Diagrams Samsung Electronics 12 9 6 8 SECAM Option ...
Page 170: ...Schematic Diagrams 12 10 Samsung Electronics 6 9 OSD VPS PDC ...
Page 171: ...Schematic Diagrams Samsung Electronics 12 11 6 10 TM ...
Page 172: ...Schematic Diagrams 12 12 Samsung Electronics 6 11 Input Output ...
Page 173: ...Schematic Diagrams Samsung Electronics 12 13 6 12 DVD AV Decoder ...
Page 174: ...Schematic Diagrams 12 14 Samsung Electronics 6 13 DVD Servo ...
Page 175: ...Schematic Diagrams Samsung Electronics 12 15 6 14 DVD Audio Video ...
Page 176: ...Schematic Diagrams 12 16 Samsung Electronics MEMO ...