Circuit Operating Descriptions
13-12
Samsung Electronics
13-5-3 Amplifier (MM1692)
VIC1 of JACK PCB is 6dB amplifier.
Based on CVBS signal, the final output level must be 2Vpp without 75ohm terminal resistance.
Because the level of video encoder output is only 1Vpp, the level is adjusted with the special
amplifier.
When mute of pin 5 is high active, if the pin is floating and connect to power, the output
signal is never outputted.
Y, C, Y(R), Cb(B), Cr(R) outputted from video encoder are inputted to VIC1 [Pin14, 16, 13, 12,
11] respectively. And CVBS Output[Pin 15] is made by Y & C Mixing signal.
The signal to which gain is adjusted by amplifier is outputted from jack via 75ohm Resistance
(VDR1,2,4,5,6,).
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 ...