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DVR-S60/NX-SW60
QQ
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DVD P.C.B. OPERATION / DVD基板の動作
1. General operation diagram
The circuit mounted on the DVD part (Front-end Board) is
configured as shown, which is divided into the following
blocks according to the main IC's.
PICK-UP;SF-HD6
DVD/CD
PD
A
B
C
D
E
F
VR-CD
VR-DVD
MD
LD-CD
VD
HFM
High-
LD D
frequency
circuit
LASER
DIODE
GND-LD
TE
L 13942296513
F-
FOCUS
F+
ACTUATOR
T-
TRACKING
T+
M
SLED
MOTOR
LIMIT
SWITCH
OPEN/CLOSE
SWITCH
M
LOADING
MOTOR
SPINDLE
MOTOR
HALL
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VREF
RF AMP
RFOP,RFON,PH,TE,ADBH
MD
LD
TOST,FOST,BST,VCA
IC100
TBAL,FBAL,SGC
LA9702
DEF
MD
DEFECTO
LD
XHTR
5Vd
CAO
CAN
FE
BU4066
LDON1,LDON2
CD x2
RFSCT,EQSCT
ANALOG SWITCH
CD x4
PP/TE,DPD/TE
4-CH BTL DRIVER
IC601
9V
BA5937
FDD
TDD
SLD
OPEN/
CLOSE
DMUTE2
3-PHASE MOTOR DRIVER
9V
U+,U-
V+,V-
W+,W-
SPD
IC602
FG
BA6849
FR
U,V,W
DMUTE
x
ao
y
i
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1. 一般的動作図
DVD基板 （フロントエンド） に取り付けられている回路の
構成は下記のとおりで、主 IC にしたがって下記のブロッ
クに分かれます。
JVAD
JV
BH
ADBH
IC200
LC78661W
DEFECTI
DEF_INH
FE
IC101
Q Q
3
6 7
1 3
IC500
M37903S4CHP
MICRO COMPUTER
u163
.
2 9
9 4
2 8
DSP
9V
(actuator)
IC201
(motor)
T224162B
5V
(analog)
DRAM
16.934MHZ
IC900
5Vd
3.3V
BA033
(digital)
(FOR DSP)
REGULATOR
DACK
DREQ
DCLK,DBGN,DERR
SDT[O;7]
EMPH,C2F,LRCK,BCK,CD_DATA,SPDIF
16MHZ
IC504
TC7SHU04FU
INVERTER
1 5
0 5
8
2 9
9 4
IC550
TO BACK-END
LE28C1001
BLOCK
FLASH MEMORY
RXD,SCLK
HD_INT,TXD,RDY_HIF
RESET
IC502
HRST
M51953
RESET
16MHZ
m
co
9 9
PH 6P
FFC 26P
FFC 16P
2 8
9 9
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