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RF SIGNAL IC8251 (MOTOR DRIVE)
MOTOR DRIVE SIGNAL
TRACKING ERROR SIGNAL
FOCUS ERROR SIGNAL
IC8001 (DV3.2)
VIN9
VO2+ 130 129 131 132 133 134 138 137 135 136 AD1 140 AD1 27 OPOUT DRV1 90 SPDRV 5 VIN1 + + + PWM0 145 FODRV 23 VIN5 LEVEL SHIFT VO1+ + VO1+ OPINPWM1 144 TRDRV 22 VIN4 DRV0 91 TRSDRV 6 VIN2 BIAS1 + LEVEL SHIFT + VO2+
12 TRAVERS MOTOR 11
OPTICAL PICKUP UNIT
PHOTO DETECTOR B1 B4 B2 B3 HEAD AMP
VIN10 VIN5 VIN6
A1 A2 A4 A3
OPIN+
VIN7 VIN8 VIN1 VIN2 VIN3 VIN4
25
14 SPINDLE MOTOR 13
26
VO3+
10 M2601 LOADING MOTOR
LASER DIODE(DVD)
Q8551, Q8552 LD DRIVE LPC01 LPC1 124 123 FROM IC6001-16,17PIN 7 VIN3 + BIAS2 DRV4 87 RFINN RFINP SP MUTE 3 CH1 MUTE LEVEL SHIFT
VO3+
9
LASER DIODE(CD)
Q8561, Q8562 LD DRIVE LPC02 LPC2 126 125
IC8251-15,16,17,18 4Vp-p(0.5msec./div.) + VO4+ VO4+ VO5+ VO5-
OPTICAL PICKUP UNIT ACTUATOR TRACKING COIL
113 114 DRV3 88 TRVFT MUTE 4 CH2,4,5 MUTE +
17 18 15 16
ACT T+ ACT TACT F+ ACT F-
LEVEL SHIFT
FOCUS COIL
+ LEVEL SHIFT
+
+
IC6001
(OPERATION CPU)
CH3 MUTE
MUTE3
1 CLOSE SW
TRAY MUTE
18
TRAY CLOSE S2601 OPEN SW TRAY OPEN S2602
20 19
DVD-S42E/EG SERVO BLOCK DIAGRAM