Circuit Operating Descriptions
7-14
(23) Tape Counter Control
Fig. 7-16 is a simplified diagram of the tape counter control circuit. The tape counter in the u-COM counts the
control pulses derived from control head. The control signal on the control track of the tape is picked up by the
control head and supplied to pins 85, 86 of IC601. The control pulse is amplified by the u-COM IC. The u-COM
determines the tape direction so the counter counts up when the “CAP F/R”signal is Hi and the counter counts
down when the “CAP F/R” signal is Low. By counting the control pulse, the counter data is supplied to the VF
display. Counter displays the time and it is increased or decreased by one minute after counting 1500 control puls-
es. Counter mode is switched to clock mode when the display button is pushed or when the VCR goes to power
off mode. When the reset button is pressed, the counter is reset to “00 : 00”.
The tape counter has a memory stop function.
Fig. 7-16 Counter Display
LED DISPLAY
SEG1 ~ SEG8
G1 ~ G6
85
86
IC701
STEREO
Summary of Contents for SV-DVD40
Page 82: ...Circuit Operating Descriptions 7 7 Fig 7 12 Block Diagram ...
Page 116: ...Circuit Operating Descriptions 7 41 3 Block Diagram Fig 7 38 LA70100M Block Diagram ...
Page 141: ...VCR Deck Operating Description 8 12 Samsung Electronics Fig 8 14 Mecha Timing Chart ...
Page 156: ...Samsung Electronics 11 1 11 Wiring Diagram ...
Page 158: ...Schematic Diagrams 12 2 Samsung Electronics 6 1 S M P S ...
Page 159: ...Schematic Diagrams Samsung Electronics 12 3 6 2 Power Drive ...
Page 160: ...Schematic Diagrams 12 4 Samsung Electronics DT701 6 3 Display Function ...
Page 161: ...Schematic Diagrams Samsung Electronics 12 5 6 4 System Control Servo ...
Page 162: ...Schematic Diagrams 12 6 Samsung Electronics 6 5 A V ...
Page 163: ...Schematic Diagrams Samsung Electronics 12 7 6 6 Hi Fi ...
Page 164: ...Schematic Diagrams 12 8 Samsung Electronics 6 7 A2 NICAM ...
Page 165: ...Schematic Diagrams Samsung Electronics 12 9 6 8 SECAM Option ...
Page 166: ...Schematic Diagrams 12 10 Samsung Electronics 6 9 OSD VPS PDC ...
Page 167: ...Schematic Diagrams Samsung Electronics 12 11 6 10 TM ...
Page 168: ...Schematic Diagrams 12 12 Samsung Electronics 6 11 Input Output ...
Page 169: ...Schematic Diagrams Samsung Electronics 12 13 6 12 DVD AV Decoder ...
Page 170: ...Schematic Diagrams 12 14 Samsung Electronics 6 13 DVD Servo ...
Page 171: ...Schematic Diagrams Samsung Electronics 12 15 6 14 DVD Audio Video ...
