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• Data is recorded by changing the recording layer from the amorphous status to the crystalline status, and played
back by reading the difference of the reflection coefficient.
Amorphous: Non-crystalline.
[ Recording ]
When a high-power laser is applied to the recording material, it melts and then becomes amorphous with a low
reflection coefficient when it quickly cools off. When a mid-power laser is applied to heat gradually the recording
material and then gradually cools it off, it becomes crystal with a high reflection coefficient.
[ Playback ]
A low-power laser is used for playback. The amount of reflected light depends on the status (amorphous or crys-
talline) of the recording material. This is detected by an optical sensor.
3) Recording format using phase-change recording material
( DVD-RW / DVD+RW )
G
Disc structure
G
Recording principles
Содержание 7823W
Страница 41: ...3 42 3 43 2 E5 BGA POWER UART2_RS232C CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 42: ...3 44 3 45 3 DDR SDRAM FLASH DDR TERMINATION REG CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 43: ...3 46 3 47 4 RST CONTROL STATUS REG ADDRESS LATCH CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 44: ...3 48 3 49 5 1394 HDMI TRANSMITTER JACK ETHERNET CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 45: ...3 50 3 51 A B C D E F G H I J K L M N O P Q R S T 6 VIDEO DECODER IO JACK CIRCUIT DIAGRAM ...
Страница 46: ...3 52 3 53 7 ATAPI 1 2 MEMORY CARD I O CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 47: ...3 54 3 55 8 JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 48: ...3 56 3 57 9 I O µ COM CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 49: ...3 58 3 59 10 TUNER MPX ADC DAC JACK CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 50: ...3 60 3 61 11 KEY CIRCUIT DIAGRAM 5 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Страница 51: ...12 KEY CIRCUIT DIAGRAM 6 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T 3 62 3 63 ...
Страница 52: ...3 64 3 65 13 KEY CIRCUIT DIAGRAM 8 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Страница 53: ...14 KEY CIRCUIT DIAGRAM 9 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T 3 66 3 67 ...
Страница 54: ...3 68 3 69 15 TIMER CIRCUIT DIAGRAM 5 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Страница 55: ...3 70 3 71 16 TIMER CIRCUIT DIAGRAM 6 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Страница 56: ...3 72 3 73 17 TIMER CIRCUIT DIAGRAM 8 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Страница 57: ...3 74 3 75 18 TIMER CIRCUIT DIAGRAM 9 TOOL ONLY A B C D E F G H I J K L M N O P Q R S T ...
Страница 62: ...3 84 3 85 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE LOCATION GUIDE ...
Страница 63: ...3 86 3 87 LOCATION GUIDE 2 MAIN P C BOARD BOTTOM SIDE ...
Страница 64: ...3 88 3 89 3 I O P C BOARD TOP VIEW BOTTOM VIEW 4 JACK P C BOARD ...
Страница 65: ...3 90 3 91 6 POWER P C BOARD LOCATION GUIDE BOTTOM VIEW 5 HDD P C BOARD TOP VIEW ...
Страница 67: ......
Страница 87: ...4 20 9 LASER TURN ON SIGNAL F LIC502 PIN 52 LDEN DVD LCN201 PIN17 VRDC LCN201PIN 34 ...
Страница 102: ...4 35 2 Disc Specification 3 Disc Materials 1 DVD ROM Single Layer Dual Layer ...
Страница 122: ...4 55 4 56 CIRCUIT DIAGRAMS 1 RF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 123: ...4 57 4 58 2 DSP CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 124: ...4 59 4 60 3 µ COM CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Страница 126: ...4 63 4 64 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD LOCATION GUIDE ...
Страница 127: ...4 65 4 66 2 MAIN P C BOARD LOCATION GUIDE ...