Technics RS-DV290EG Service Manual page 258

D+5V
8
26 TRIN
1
BIAS1
23
VIN3
6 OPOUT
2 VIN1
LDIN
24
25 BIAS2
27
MUTE3
CH3
MUTE
9
MUTE12
CH1,2
MUTE
3
VIN2
28
D+5V D+3.3V
C3EBGC000033
IC6221
EE PROM
8
D+3.3V
4
FG UNIT
QR5241
POWER
67
SUPPLY RAS
D+3.3V
12
NWORD
C0GBG0000033
M+9V
IC2501
FOCUS/TRACKING
COIL,SPINDLE/TRAVERSE
MOTOR DRIVE
21 22
VO4+ 15
M
VO4-
16
LEVEL
SHIFT
4
OPIN+
VO3+ 17
M
VO3- 18
LEVEL
SHIFT
5
OPIN-
TRACKING
VO1+ 14
VO1- 13
LEVEL
SHIFT
FOCUS
VO2+ 12
VO2- 11
LEVEL
SHIFT
7,10,
19
Q6215
5
SDA RESET
VCC
6
SCL
GND
56 53 11 79 78 68
17,22, 34 54 43
66,83
D+3.3V D+3.3V D+3.3V
M2502
(TRAVERSE MOTOR)
M2501
(SPINDLE MOTOR)
COIL
OPTICAL
PICKUP UNIT
COIL
84~91,
93~100
4 7 18 2 3 1 70 72 71 23 100 10
MN102H60GFD
IC6201
CPU
19,92 61 8
C0DBCGE00002
IC6253
D+5V REGULATOR
C0DBEZG00011
D+3.3V
IC6251
D+2.5V REGULATOR
C0DBFFG00004
IC6252
D+2.5V REGULATOR D+1.8V
A0~11
C3ABPG000121
1,14,27
D+3.3V V
DD IC3061 DQ0~15
MEMORY
LDQM
C3ABPG000121
IC3062 /RAS
3,9,43,
MEMORY
49,
/CAS
D+3.3V
V Q
DD
28,41, 6,12,
54 46,52
13~16,
26~33,
35~42,
44,45 9 51
C0JBAA000001
IC6223
50 AND
SBT3
GATE
C0JBAA000001
IC6222
52 AND
SBO3
GATE
82
PST596JNR
D+3.3V RESET
IC6211
SL-DV290(EE,GN) BLOCK DIAGRAM
22~26,
29~35
2,4,5,7,8,
10,11,13,42,
44,45,47,48,
50,51,53
15
18
17
16
/WE
19
/CS
38
CLK