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RF SIGNAL
MOTOR DRIVE SIGNAL
TRACKING ERROR SIGNAL
FOCUS ERROR SIGNAL
IC3001
(DV1)
IC2501
(MOTOR DRIVE)
OPTICAL PICK UP UNIT
R03 PHOTO DETECTOR
VIN5 122 VIN5 DRV5 75 VIN6
22 TRAVERS MOTOR
TRS-
21
RI3 F03
B1 A1 A4 B4 A2 A3
B2 HEAD AMP
VIN7
123 VIN6 DRV2 72 124 VIN7
24
TR+
13
FI2 LOGIC CIRCUIT PREDRIVER H-BRIDGE
B3
VIN8
125 VIN8
DRV3 73
TR-
29
FI4
PICK-UP UNIT
ACTUATOR
VIN1
126 VIN1 DRV4 74
TRS+
20
FI3 F01 8 F+ FOCUS COIL
VIN2 VIN3
127 VIN2 128 VIN3
FROM IC6302-17PIN ACTMUT L FO+
31
STB
RESET
R01
6
FTRACKING COIL
VIN4 VIN9 VIN10
129 VIN4 130 VIN9 131 VIN10 DRV1 71 DRV0 70
4
FI1
F02
9
T+
F04 FO5 RI1
25
T-
VREF
136 VREFH
LASER DIODE
Q5201,Q5211 LD DRIVE
LPC01 LPC1 133 LPC01 132 LPC1
LASER DIODE
Q5202,Q5215 LD DRIVE
LPC02 LPC2 135 LPC02 134 LPC2
IC2501-6,8,9,25 5.6Vp-p(20usec./div.)
RF IN N RF IN P
120 RFINN 121 RFINP
SPINDLE MOTOR UNIT
TRAVERSE SWITCH
P15 47
TRV-SW+
SW2
IC2502
(SPINDLE MOTOR DRIVE)
H+
DRV6 76 DRV8 78
EC PHS
11 12
PWMIN PHS PHASE SHIFT KVAL BLOCK
ROTOR POSTION DETECTOR
9 10
H2+ H2HALL2
H-
IC6302
(DATA CTL) IC2502-19 3.8Vp-p(1msec./div.) 17 Q10
DATA 2 CLOCK 3 SS SB01 SBT1 LCK
MEMORY AND MEMORY SCAN
WAVEA WAVEB WAVEC
DIGITAL MULTIPLIER
PWM CONVERTER PWMOUTA PWMOUTB PWMOUTC
TO IC2501-31PIN ACTMUTE L
60 P5 59 P6 50 P12
FG 66
FREQUENCY MULTIPLIER HFG HFG
THERMAL SHUTDOWN
OUTU 19 POWER SECTION OUTV OUTW 1 STB INDUCTIVE SENSE START UP BLOCK 0.2V CURRENT LIMITER LOW VOLTAGE DETECTOR
4 5 6
A1 A2 A3
14 Q7
LCK 4
8
RF1
DVD-LS5PP SERVO BLOCK DIAGRAM