Block Diagram; Main(Servo) - Panasonic SA-PT480PH Service Manual

14 Block Diagram

14.1. Main(Servo)

: CD/DVD AUDIO INPUT SIGNAL LINE : CD/DVD VIDEO INPUT SIGNAL LINE
TRAVERSE UNIT
OPTICAL PICKUP UNIT
FP8531
A/a VIN1
16
D/d FP8531
VIN2
19
C/c FP8531 VIN3
20
FP8531
B/b VIN4
15
FP8531
E VIN9
10
PHOTO DIODE
FP8531
F VIN10
14
RF FP8531 RF
17
FP8531
VC (REF) VREFH
12
CD/DVD SW FP8531
18
FP8531
VR-CD
8
VR-DVD FP8531
7
LASER DIODE
DVD-LD FP8531
2
FP8531
CD-LD
6
FP8531
MD
5
ACTUATOR
T+ FP8531
22
TRACKING
COIL
FP8531
T-
21
F+ FP8531
23
FOCUS
COIL
F- FP8531
24
MAIN P.C.B.
IC8001
MN2DS0018MP
DV5.0 LSI
TRCCLK 76
98 VIN2RF
115 VIN7
97 VIN1RF
116 VIN8
99 VIN4RF
113 VIN5
EXDT11 8
100
VIN3RF
114 VIN6
112 VIN9
111 VIN10
P4 49
96 RFINP
P3 48
109 VREFH
95 RFINN
TRCDATA3 80
Q8563 Q8565
DVD CD
SWITCH SWITCH 77 TRCDATA0
Q8564
DRV0 67
SWITCH
VHALF 110
Q8551,Q8552
AD4 124
DVD LASER
104 LPCO1 PWM0 127
DRIVE
Q8561,Q8562
AD2 123
CD LASER
106 LPCO2
DRIVE PWM1 126
103 LPC1
105 LPC2
DRV1 66
AD1 122
QR8420
AMUTE
AUDIO MUTING
INNER SW
IC8251
C0GBG0000048
MOTOR DRIVER
TRVFTMUTE MUTE1,2
9 CH1,2 MUTE
SPMUTE MUTE3
27 CH3 MUTE
MUTE4
+3.3V 20 CH4 MUTE
LDCNT LDCNT
28 CNT
LDIN
24
-
BIAS1
+
25
TRV DRV TRIN
26
-
VHALF BIAS1
1 +
FODRV VIN2
3
-
+
TRDRV VIN1
2
-
+
SP DRV VIN3
23
-
+
OPOUT
6
CH1
+
VO1+
14
-
LEVEL
SHIFTER
CH1
+
VO1-
13
-
CH2
+
VO2+
12
-
LEVEL
SHIFTER
CH2
+
VO2-
11
-
100
LDIN
LDIN
INNER SW
INNER SW
OPEN SW
OPEN SW
ZFLAG
ZFLAG
TRAVERSE/SPINDLE
TRAVERSE
UNLOAD SW
FP8251
2
FP8251
3
TRAVERSE
INNER SW
CH4
+ FP8251
VO4+
15
- 7
LEVEL
M
SHIFTER TRAVERSE
MOTOR
CH4
+ FP8251
VO4-
16
- 6
CH3
+
VO3+ FP8251
17
- 5
LEVEL
SPINDLE
SHIFTER M
MOTOR
CH3
+
VO3- FP8251
18
-
4
TRAVERSE UNIT
OPIN-
5
OPIN+
4
SA-PT480PH MAIN(SERVO) BLOCK DIAGRAM
FROM/TO
MAIN(SYSTEM CONTROL)