Block Diagram - Panasonic SA-HT640WPL Service Manual

2 Block Diagram

OPTICAL PICK UP UNIT
PHOTO DETECTOR
B1 B2
A1 A2
HEAD
AMP
A4 A3
B4 B3
LASER DIODE
Q8551,8552
LD DRIVE
LASER DIODE
Q8561,8562
LD DRIVE
IC8606
C0EBA0000031
RESET
IC8601
OUT
C0EBE0000384
1
VOLTAGE DETECTING
Q8606,
8607
2
NRESET BUFFER
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IC8001
MN2DS0003APH
DV2.1 LSI
138
VIN1
137
VIN2
136
VIN3
135
VIN4
131
VIN8
132 128
VIN7 VHALF
133
VIN6
134 147
VIN5 PWM1
129
VIN10
130 148
VIN9 PWM0
124 76
LPC01 DRV1
123
LPC1
75
DRV0
126
LPC02
125
LPC2
140
AD1
110
RFINN
111
RFINP
79
DRV4
83
DRV8
78
DRV3
81
DRV6
72
FG
Q8550,
8560
BUFFER
60
73
P8
NRST
59
P9
IC8251
C0GBG0000048
TRACKING COIL/FOCUS COIL/TRAVERSE/SPINDLE MOTOR DRIVE
-
1 BIAS1
+
TRV DRV 2 VIN1
F0 DRV 3 VIN2
SP DRV 23 VIN3
TRS DRV 24 LDIN
-
+
BIAS2
6 OPOUT
-
+
MUTE3
27 MUTE3 CH3
MUTE
MUTE12,4 9 MUTE12 CH1,2
MUTE
-
+
20 MUTE4 CH4
MUTE
QR8571
BUFFER
SW
IC8611
EEPROM
SDA 5
SDA
SCL 6
SCL
(Not supplied)
3
VOL4+ 15
-
TRAVERSE
+
MOTOR
LEVEL VOL4- 16
SHIFT
-
+
OPIN+ 4
VOL3+ 17
-
SPINDLE
+
MOTOR
VOL3- 18
LEVEL
SHIFT
-
+
OPIN- 5 OPTICAL PICK UP UNIT
VOL1+ 14
ACTUATOR
-
TRACKING
+ COIL
ACT T+
VOL1- 13 ACT T-
LEVEL
SHIFT
-
FOCUS
+ COIL
ACT F+
ACT F-
VOL2+ 12
HFM
-
+
LEVEL VOL2- 11
SHIFT
-
+
TRAVERSE SW
SA-HT640WPL BLOCK DIAGRAM
SA-HT6