
Circuit Descriptions
6-14
Samsung Electronics
6-5 DVD Data Processor
6-5-1 Outline
DIC1(KS1453) performs Sync detection, EFM/EFM demodulation and error correction and Spindle motor control
(CLV control) after inputting sliced EFM signal of RF signal at disc playback and EFM read clock (PLCK) signal gen-
erated from PLL. Outputs data which converted to the last audio and video from A/V decoder(VIC1). KS1453 uses
external memory(4M DRAM) as buffer as well as for error correction and carries out Variable Bit Rate transfer func-
tion. VBR function uses the external buffer as buffer to absorb the difference of transfer rate occurring because the
transfer rate of disc playback is faster than data transfer rate demanded by A/V decoder(Video/Audio Signal
Process Chip).
In case of general disc refresh, the memory is almost filled up periodically. It is because Write rate to memory after
disc playback and signal process is faster than Read of A/V decoder. When the memory is filled, this status is report-
ed by interrupt to main micom, which controls the servo to kick back the pick-up to the previous track after mem-
orizing the last data read from disc until now. It takes some times to jump to the previous track and return to the
original(jump location) again. The memory will have an empty space because A/V decoder reads out data of mem-
ory.
When the memory has an empty space, where data can be processed and written and the pick-up correctly gets to
the original location(before kick back location) again, it reads data again avoids the interrupt of data read previ-
ously. The basic operation repeats to perform as described above.
6-5-2 Block Diagram
Fig. 6-19
AD[7..0]
HA[23..8]
*WR(73)
INTO(ZIRQZD)
INT4(/INT)
*RD(72)
MIC1 TMP93CM41F
HDATA[7..0]
HADDR[3..0]
/CS
/RD
/WR
/INT
DVD-D[7..0]
VSTROBE
REQUEST
DACK
*ERR
VIC1
(ZiVA-3)
192
191
196
200
177, 178
CLOCK 27MHz
CLOCK 33.8688MHz
CLOCK 27MHz
14
95
69
70
58
71
57
SDATA[7..0]
CSTROBE
DATREQ
DATACK
DTER
TOS
O
E
W
E
C
A
S
R
A
S
[
[D
1
5.
.
0
[
[A
8.
.
0
[
[
D
D
1
5.
.
0
[
[
D
A
D
R
8.
.
0
Z
R
A
S
Z
C
A
S
Z
W
E
O
Z
O
E
O
MDAT[7:0]
MRZA(3)
ZCS(2)
MWR(128)
MRD(127)
ZIRQZD(126)
EFMI
PLCK
116
104
109
110
MDP
MDS
EFM
PLCK
DIC1
(KS1453)
DIC2
(KM416C254)
Содержание DVD-A500
Страница 29: ...Product Specification 3 2 Samsung Electronics MEMO ...
Страница 65: ...Circuit Descriptions 6 20 Samsung Electronics MEMO ...
Страница 75: ...Troubleshooting 7 10 Samsung Electronics MEMO ...
Страница 76: ...Samsung Electronics 8 1 8 Exploded View and Parts List 8 1 Cabinet Assembly 8 2 Deck Assembly Page 8 2 8 4 ...
Страница 81: ...Exploded Views and Parts List 8 6 Samsung Electronics MEMO ...
Страница 95: ...Samsung Electronics 9 14 Electrical Parts List MEMO ...
Страница 97: ...Block Diagram 10 2 Samsung Electronics MEMO ...
Страница 99: ...PCB Diagrams 11 2 Samsung Electronics 11 1 Main COMPONENT SIDE SOLDER SIDE ...
Страница 100: ...11 2 Jack PCB Diagrams 11 3 Samsung Electronics COMPONENT SIDE SOLDER SIDE ...
Страница 101: ...PCB Diagrams 11 4 Samsung Electronics 11 3 S M P S 11 4 AMP ...
Страница 102: ...11 5 Front PCB Diagrams 11 5 Samsung Electronics ...
Страница 103: ...PCB Diagrams 11 6 Samsung Electronics 11 6 Headphone 11 8 Deck 11 7 Key ...
Страница 104: ...Samsung Electronics 12 1 12 Wiring Diagram ...
Страница 105: ...Wiring Diagram 12 2 Samsung Electronics MEMO ...
Страница 107: ...Schematic Diagrams 13 2 Samsung Electronics 13 1 S M P S ...
Страница 108: ...Schematic Diagrams 13 3 Samsung Electronics 13 2 Main Power Supply ...
Страница 109: ...Schematic Diagrams 13 4 Samsung Electronics TO INTERFACE CONNM 13 3 Main Micom ...
Страница 110: ...Schematic Diagrams 13 5 Samsung Electronics 13 4 Servo ...
Страница 111: ...Schematic Diagrams 13 6 Samsung Electronics 13 5 RF ...
Страница 112: ...Schematic Diagrams 13 7 Samsung Electronics 13 6 DSP ...
Страница 113: ...Schematic Diagrams 13 8 Samsung Electronics 13 7 A V Decoder ...
Страница 114: ...13 8 Video Schematic Diagrams 13 9 Samsung Electronics ...
Страница 115: ...Schematic Diagrams 13 10 Samsung Electronics 13 9 Audio 5 1 Channel DSP ...
Страница 116: ...Schematic Diagrams 13 11 Samsung Electronics 13 10 Audio 5 1 Channel Analog ...
Страница 117: ...Schematic Diagrams 13 12 Samsung Electronics 13 11 Audio 2 Channel ...
Страница 118: ...Schematic Diagrams 13 13 Samsung Electronics 13 12 Interface ...
Страница 119: ...Schematic Diagrams 13 14 Samsung Electronics FROM TO 13 13 Amp ...
Страница 120: ...Schematic Diagrams 13 15 Samsung Electronics FROM TO 13 14 Headphone ...
Страница 121: ...Schematic Diagrams 13 16 Samsung Electronics 13 15 Front ...
Страница 122: ...Schematic Diagrams 13 17 Samsung Electronics 13 16 Key ...
Страница 123: ...Schematic Diagrams 13 18 Samsung Electronics 13 17 Deck ...
Страница 124: ...Schematic Diagrams 13 19 Samsung Electronics 13 18 Remote Control ...
Страница 125: ...Schematic Diagrams 13 20 Samsung Electronics MEMO ...