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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