Technics RS-DV290EG Service Manual page 257

OPTICAL PICK-UP UNIT
MONI
57
MONI
10 MONI2
VIN7
53
PHOTO
DETECTOR
54 VIN8
B1 B2 58 VIN1
A1 A2
HEAD
AMP
A4 A3
59 VIN2
B4 B3
VIN3
60
61 VIN4
51 VIN5
52 VIN6
62 VIN9
63 VIN10
Q5111
LASER DIODE
2 LPCO1
LASER
P.DRIVE
1 LPC1
Q5115
LASER DIODE LPC AMP
LPCO2
4
LASER
P.DRIVE
3 LPC2
44 CRFHP1
45 CRFHP2
A+5V
A+5V
46 RFINP
47 RFINN
43 TESTSG
TSTSG
D5151
24
SHOLD
41
VFOSHORT SHORT
REG-LOGIC
QR5221
23
DTRD DTRD
POWER
D+3.3V
SUPPLY
42 17 19
HFMON
AN22030A-VT
IC5201
FRONT END PROCESSOR
ADD
ADD
AMP
AMP
AMP
AMP FBAL
HPF
EQ
COMP
DEFFERENTIAL
PHASE DET.
HPF
EQ
COMP
NW
DET.
HPF
EQ
COMP
DEFFERENTIAL
PHASE DET.
HPF LEVEL
EQ
COMP CONT.
AMP
AMP
AMP
AMP
TBAL
AMP
AMP
AMP
AMP
L.P.F.
ENV
DET.
DPDOFT
DET.
LEVEL
CONT.
FC
CONT.
MIRROR BDO
DET. DET.
LEVEL LEVEL
CONT. CONT.
18 20 5 15 55 32 56 31 64
48
PEAK
RFTE 12
Q2001
RF
AMP
A+5V
RFENV 49
HOLD
9
TE FLT
TE
FLT
TE
11
FS 13
27
RSCL
S LINE
FE
14
TBAL 8
FBAL 7
Q5271
DCFLT 36
SWITCH-
ING
BDO 22
FLTOP 34
FLTON 35
SAG 37
OFTR 21
39
AGCG2
AGC
CONT. 1
38
AGCG1
A
BOOST 5
BDOSL 29
CONT.
A+5V V CC
MIRSL 30
EQ VGA
3
GND
GD CONT.
C0JBAS000116
IC2101
LOGIC CONTROL
28 16 50 33 25
A+5V
D+3.3V
D2001
61
98
RFDIF
96
HPFIN
95
HPFOUT
CRnet.
92
LPFOUT
93
LPFIN
120
AD3
4,19,32,
60,77,81,
126,144,
155,163,170
V
SS
118
AD1
119
AD2
117
AD0
MN103S26EGA
65
IC2001
TBAL
OPTICAL DISC
CONTROL
66
FBAL
85,94,
102,113
AVSS
52
BDO
111
ARF
110
NARF
51
OFTR
104
2
VREF2
75
B
IDGT
4 83
C VFOSHORT
74
DTRD
82 53 54 55 9~17, 37~44
22~30
S2501
(REST DET.)
149,151,158,160,
164,166,168,172
HDD8~15
3,31,57,
78,125,143,
156,162,169
V 3 D+3.3V
DD
88,99,
109,116
AV DD D+3.3V
174
V H D+3.3V
DD
67
TRSDRV
106
VHALF
18,76,
152
V 18 D+1.8V
DD
68
SPDRV
122
CAPAC2
114
DAC0
20,58
DRAMV 18 D+1.8V
DD
33
DRAMV DD 33 D+3.3V
70
TIL TP
71
TILT
115
DAC1
21
DRAMV
SS
47
NRST
NRST
6
WAIT
WAITODC
69
FG
56
PWM4
35 36 79
SL-DV290(EE,GN) BLOCK DIAGRAM