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OPTICAL PICK UP UNIT

PHOTO DETECTOR

VREFRF

DCAGC

AGCG2

AGCG1

BDOSL

RFENV

B1 A1 A4 B4 A2 A3

B2 PEAK HEAD AMP

DCFLT

MIRSL

RSCL

A B

B3

IC5201 (FEP)

48

49

39

38

29

30

31

27

56

36

+ MONI 57 MONI2 10 CRFHP1 44 CRFHP2 45 RFINP 46 RFINN 47 TESTSG + MONI

HOLD

AGC CONT.

S LINE + -

34

FLTOP

C

NW DET. LEVEL CONT. ENV DET. FC CONT. LPF VGA EQ BOOST CONT.

35

FLTON

D

37

SAG

43

+ LEVEL CONT.

BD0 DET.

22 32

BD0 RBCA

E

LASER DIODE

Q5211 LD DRIVE

+ + VIN5 51 VIN6 52 AMP AMP

GD CONT. AMP

MIRROR DET. LEVEL CONT. DPDOFT DET.

21

OFTR

F

LASER DIODE

Q5215 LD DRIVE

VIN7 53 VIN8 54 AMP AMP AMP LEVEL CONT.

P0FLT 5

ADD + HPF COMP. HPF COMP. HPF COMP. HPF COMP.

ADD VIN1

+

13

FS

G

58

EQ

VIN2

DEFFERENTIAL PHASE DET.

12

RFTE

H

59

EQ

VIN3

FBAL DEFFERENTIAL PHASE DET. + 14 FE I

60

EQ

VIN4

61

EQ

7 AMP

FBAL

J

AMP TBAL VREF 55 AMP

TEFLT + 11 TE K

IC6201
(CPU) AMP VIN9 9 VHALF TEFLT

62

AMP

15

L

VIN10 Q5271 SBT0 67 AMP Q6251 RST 11 RESET

63

AMP

LPC AMP

REG-LOGIC

8 TBAL

1 2 3 4 LPC1 LPC01 LPC2 LPC02

41 24 23 42 17 18 19 20 SHORT SHOLD DTRD IDGT STANBY SEN SCK STDIO

M N O P Q R

NCS1 6 INRQ1 77 INRQ0 76

S T U V

AN1 63

W

DVD-LV50EB/EG SERVO BLOCK DIAGRAM