Digital (Front End Section) Block Diagram - Panasonic DMP-BD75GA Service Manual

8.4.

Digital (Front End Section) Block Diagram

IC51001
SODC
(OPTICAL DISC CONTROLLER)
IRNC
TRINC
G4
FOIP
FOIP
A2
FEGIO6
FEGIO6
P5
FEGIO12
FEGIO12 R5
FEGIO5
FEGIO5 R4
LPC3
FPDODVD D3
RFIN
J3
RFIN2
J2
RFIP
J4
RFIP2
J1
INA
E1
INB
E2
INC
F1
IND
F2
INE
H3
INF
H4
ING
G2
INH G1
FEGAINSW2 N3
FEFMO2 M2
FEFMO3 M4
V14REF
K6
V14
FETRAYPWM
FETRAYPWM M3
DIGITAL BLOCK
BACK END
SECTION
TRO
K1
TRO
FOO
FOO K2
TLO
TLO L4
FEFMO
FEFMO L3
FEFMO2
FEFMO2 M2
FEFDO
FEFDO M1
FEGIO0
FEGIO0 T1
FEGIO1
FEGIO1 P4
FEFG
FEFG V3
IC55003
(Laser Diode Drive)
6 IMON
VMON
7
8 LDEN
9 P1
10 P2
Q55002
PW_5V
4 LDIN
5 PDOUT
IC55005
(MOTOR/PWM/DRIVER)
GAINSW2 STEP_ENA
STP1 Control
7
Pre-Driver
FEFMO2 STP1_IN
8 Circuit
NF
STP2 Control
FEFMO3 STP2_IN Pre-Driver
9 Circuit
Collimator END
NF
3.3V 12 Detectin
CONLLIENDZ
IC55004
(MOTOR/PWM/DRIVER)
VREF
6
VLOAD
Absolute/
19
PWM Control Pre-Driver
Circuit
NF
VTRK
20 Absolute/
Pre-Driver
PWM Control
Circuit
NF
VFCS Absolute/
21
Pre-Driver
PWM Control
Circuit
NF
Absolute/
VTLT
Pre-Driver
22 PWM Control
Circuit
NF
Absolute/
VSLED1
16 PWM Control Pre-Driver
Circuit
NF
Absolute/
VSLED2
Pre-Driver
17 PWM Control
Circuit
NF
BEMF detect
Comparator
VSPIN
18
Matrix
Pre-Driver
XMUTE1
13
Start-up Circuit
XMUTE2 Circuit
14
XFG
11
Charge
Pump
MONITOR SLED END
Current Linmit
Detection
TSD Circuit
GC
15 Gain
Control
FOCUS ERROR SIGNAL
G_LD1_DVD
LDOUT1 17
G_LD1_CD
LDOUT2 18
G_LD1_BD
LDOUT3 19
A5V
STP1+ G_SB+
16
Power MOS FET STP1- G_SB-
AGND 17
A5V
STP2+ G_SA+
18
Power MOS FET
STP2- G_SA-
19
AGND
P5V12L
31 12V
P55003
LOAD_P LDM+
LDM+
32 13
Power MOS FET
LOAD_N LDM-
LDM-
33 14
TRK_P G_TR+
29
Power MOS FET
TRK_N G_TR-
30
P5V_1
26
5V
FCS_P G_FO2+
27
Power MOS FET
FCS_N G_FO2-
28
TLT_P
G_FO1+
24
Power MOS FET
TLT_N
G_FO1-
25
12V
SLED1_P TRVA+
52
Power MOS FET
SLED1_N
TRVA-
53
SLED2_P TRVB+
55
Power MOS FET
SLED2_N TRVB-
56
MCOM
49
U
U
42
V
V
Power MOS FET 44
W
W
46
CP1
3
CP2
2
26
TRACKING ERROR SIGNAL MOTOR DRIVE SIGNAL
OPTICAL PICK-UP/TRAVERSE
P55001
FO/TR
BD/DVD
ACTUATOR
RF SIGNAL
LASER
DVD
DETECTOR
DVD FOCUS AND TRACKING SIGNAL
LASER
CD
BD FOCUS AND TRACKING SIGNAL
DETECTOR
CD MAIN AND SUB SIGNAL
LASER
BD
DETECTOR
LOADING
MOTOR
FOCUS/TRACKING ACTUATOR
P55003
STEPPING MOTOR DRIVE STEPPING
MOTOR
SPINDLE MOTOR DRIVE
DMP-BD75GA/GC/GN/GT/GW/PU
SERVO BLOCK DIAGRAM
RF SIGNAL
SPINDLE
MOTOR