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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,).
Содержание DVD-R129XAA
Страница 4: ...14 Reference Information 14 1 14 4 14 1 About IEEE 1394 14 1 CONTENTS ...
Страница 10: ...Precautions 1 6 Samsung Electronics MEMO ...
Страница 22: ...Product Specification 2 12 Samsung Electronics MEMO ...
Страница 49: ...Samsung Electronics 6 1 6 Exploded View and Parts List 6 1 Cabinet Assembly Page 6 2 ...
Страница 52: ...Exploded Views and Parts List 6 4 Samsung Electronics MEMO ...
Страница 73: ...Samsung Electronics 9 1 9 Wiring Diagram ...
Страница 74: ...Wiring Diagram 9 2 Samsung Electronics MEMO ...
Страница 76: ...PCB Diagrams 10 2 Samsung Electronics 10 1 Main PCB AIC1 DIC7 RIC1 DIC2 RIC2 DIC3 AIC2 COMPONENT SIDE ...
Страница 77: ...PCB Diagrams Samsung Electronics 10 3 FIC1 DIC5 DIC4 VIC1 CONDUCTOR SIDE ...
Страница 79: ...PCB Diagrams Samsung Electronics 10 5 IC703 IC603 IC601 IC203 IC702 VIC1 IC604 AIC4 IC701 CONDUCTOR SIDE ...
Страница 80: ...PCB Diagrams 10 6 Samsung Electronics 10 3 Key PCB COMPONENT SIDE CONDUCTOR SIDE ...
Страница 81: ...PCB Diagrams Samsung Electronics 10 7 10 4 Sub PCB COMPONENT SIDE CONDUCTOR SIDE ...
Страница 82: ...PCB Diagrams 10 8 Samsung Electronics MEMO ...
Страница 114: ...Operating Instructions 12 18 Samsung Electronics MEMO ...
Страница 130: ...Circuit Operating Descriptions 13 16 Samsung Electronics MEMO ...
Страница 134: ...Reference Information 14 4 Samsung Electronics MEMO ...
Страница 139: ... Product Specification ...
Страница 140: ... Chassis Product Specification ...
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Страница 143: ...4 Disassembly and Reassembly ...
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Страница 149: ...5 Specifications ...
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Страница 162: ... Block diagram ...
Страница 166: ...7 11 Tuner Demodulator Block diagram of Tuner ...
Страница 189: ...8 Troubleshooting ...
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Страница 205: ...9 Software Upgrade ...
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