6
1.4.
Digital (Front End Section) Block Diagram
RFIP
RFIP2
RFIN
RFIN2
INA
INB
INC
IND
INE
INF
ING
INH
LASER
DETECTOR
LASER
DETECTOR
LASER
DETECTOR
BD
CD
DVD
FO/TR
ACTUATOR
SPINDLE
MOTOR
OPTICAL PICK-UP/TRAVERSE
P55001
BD/DVD
RF SIGNAL
DVD FOCUS AND TRACKING SIGNAL
BD FOCUS AND TRACKING SIGNAL
CD MAIN AND SUB SIGNAL
P55001
P55003
FOCUS/TRACKING ACTUATOR
STEPPING
MOTOR
SPINDLE MOTOR DRIVE
STEPPING MOTOR DRIVE
DIGITAL BLOCK
BACK END
SECTION
IC51001
(OPTICAL DISC CONTROLLER)
SODC
RF SIGNAL
MOTOR DRIVE SIGNAL
TRACKING ERROR SIGNAL
FOCUS ERROR SIGNAL
SERVO BLOCK DIAGRAM
IC55003
LDOUT1
G_LD1_DVD
G_LD1_CD
G_LD1_BD
LDOUT2
LDOUT3
IMON
17
6
VMON
18
7
LDEN
19
8
P1
9
(Laser Diode Drive)
IC55004
(MOTOR/PWM/DRIVER)
P2
10
G4
TRINC
A2
FOIP
FOIP
P5
R5
R4
J3
J2
J4
J1
IRNC
FEGIO6
FEGIO12
FEGIO5
FEGIO5
FEGIO12
FEGIO6
LDIN
4
PDOUT
5
D3
FPDODVD
LPC3
Q55002
PW_5V
K6
V14
M3
K1
FETRAYPWM
TRO
K2
FOO
L4
TLO
E1
E2
F1
F2
H3
H4
G2
G1
M2
FEFMO2
L3
FEFMO
T.S.D
BEM
F
DE
TE
CT
ER
Logi
c
CURR.
FEED
LEVEL
SH
IF
T
C
URR
.
LI
MI
T
OS
C
PRE
Log
ic
PR
E
Lo
gic
FF
FF
OSC
OSC
CURR.
LIMIT
CURR.FEED
CURR.FEED
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
LEVEL
SHIFT
PRE
Log
ic
PR
E
Lo
gic
FF
FF
OSC
OSC
CURR.
LIMIT
CURR.FEED
CURR.FEED
DETECTER
26.5k
㱅
26.5k
㱅
160k
㱅
160k
㱅
26.5k
㱅
26.5k
㱅
160k
㱅
160k
㱅
AV
M/
2
26.5k
㱅
26.5k
㱅
160k
㱅
160k
㱅
26.5k
㱅
26.5k
㱅
160k
㱅
160k
㱅
AV
M/
2
26.5k
㱅
26.5k
㱅
160k
㱅
160k
㱅
26.5k
㱅
26.5k
㱅
160k
㱅
160k
㱅
AV
M
/2
80k
㱅
40k
㱅
80k
㱅
80k
㱅
40k
㱅
80k
㱅
LD
V
M
/2
40k
㱅
×2
PROTECT
ST
BY
BRA
KE
CON
TRO
L
LR
P
M
PRTLIM
62.6k
㱅
62.6k
㱅
39
41
42
43
44
45
47
48
50
51
52
53
54
28
29
30
31
32
33
34
35
36
37
38
40
DR12V
DR12V
U
V
W
MCOM
DR12V
TRVA+
TRVA-
TRVB+
TRVB-
G_SB+
G_SB-
G_SA+
G_SA-
16
14
27
26
25
24
22
21
20
19
18
17
11
10
9
8
7
6
5
4
3
2
1
15
13
12
23
G_TR+
G_TR-
G_FO2+
G_FO2-
G_FO1+
G_FO1-
LDM+
LDM-
G_TR+
G_TR-
G_FO2+
G_FO2-
G_FO1+
G_FO1-
M1
FEFDO
SPIN
LDIN
DR12V
TKIN
TLIN
SAIN2
FCIN
DR5V
DR12V
DR5V
T1
FEGIO0
CTL1
FEGAINSW2
CTL2
LRPM
PRTLIM
V3
FEFG
FEFG
FEFMO4
FEFMO3
N1
M4
DR5V
SAIN
SLIN2
SLIN1
DR5V
SAIN2
SAIN
SLIN2
SLIN1
DMP-BD755P
DMP-BD75GA/GC/GN/GT/GW
DMP-BD75P/PC/PU
LDM-
LDM+
LDM-
LDM+
1
2
P55004
LOADING
MOTOR
P55002
N3
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