Circuit Operating Descriptions
7-30
14) Hold Pulse
It makes standard signal(Pulse) to compensate SW noise.
15) DET(Hi-Fi/LINEAR)
From the Hi-Fi envelope inputed from pre-amp,it decides whether the signal passing through L-CH BPF is
Hi-Fi or LINEAR tape it’s size(the signal passing through BPF is below 10mVpp, it is not Hi-Fi, therefore, it
output linear)
16) DOC(Drop Out Compensation)
If demodulation is conducted without properly treating the damage on Hi-Fi envelope caused by scratch on
the tape,noise occurs.
In order to improve this noise occurrence, DO DET compensate the drop-out using the same methode of
compensating the switching noise when the damage on the envelope ranges 10~15mVpp.
17) ENV DET
To obtain optimal tracking,envelop must be peak to peak and micom should be in DC. It is a function to
convert Hi-Fi envelop to DC. If it is lower than 0.8V at micom,it sends linear mode date to HiFi IC.
18) Serial Data Decoder
It receives I2C BUS to enable the operation of inner block and decodes into serial data.
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 ...