Sharp MD-X60 Service Manual page 45

R77
R46 1K
1K
R47
R45 1K
1K
R78 1K
R48 1K
+B
R18
3.3M
C41
0.047
R57
27K
4
53
20P
C59
0.022
+B
MAIN CAM MOTOR DRIVER
5V
R94
1 (1/2W)
C86
100P
(CH)
46
022
7 8 9
10 11 12 13 14 15 16 17 18
PWB (2/4) SYSTEM CONTROL SECTION
P38 1-E
• The numbers 1 to 11 are waveform numbers shown in page 63.
7
XL1
16.934MHz
C62
C22
15P
0.01 C61 R61
12P 220
4.9V
0V 80 79 78 77 76 75 74
X-TAL
GENERATOR
0V DEF1
1
0V
TA1
2
VCO CLOCK
OSC CONTROL
PDO ERROR COERECT
3
FLAG CONTROL
0V
R58
680 0V
VVSS
4
2.2V
ISET
RAM
5
C42
ADDRESS
GENERATOR
0.047
4.9V
6 VVDD
2KX8
R56 0V
7
FR
RAM
1.2K
0V
8
VSS
/EFMO
9
SLICE LEVEL
2.5V EFMO
CONTROL
INTERPOLATION
10
MUTE
0.2V
11 EFMIN
0V TEST2
11
12
CLV
0V CLV+ DIGITAL SERVO
13
LEVEL METER
CLV–
0V
14 PEAK METER
V/P
4.9V
15
FOCS
IC2
0V
16
MICN INTERFACE
0.3V
17
LC78625E
0.3V
18
SERVO/SIGNAL
0V
19
HLF
CONTOROL
0V
20 TES
2.5V
PCK
21
0.2V
22 FSEQ
8fs OVER SAMPLING
TOFF
4.9V
23 DIGITAL FILTER
SERVO
4.9V
TGL
24
COMMAND
25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
+B
IC92
TA7291S
TRAY MOTOR DRIVER
1 2 3 4 5 6 7 8 9
5.0V
R91
5.6K
R90
8.2K
C85
0.1
1 2 3 4
5
TO MAIN PWB (2/4) SYSTEM CONTROL SECTION
P38 1-C
8 9
Figure 45 SCHEMATIC DIAGRAM (8/15)
C58
100P (CH)
C57
100P (CH)
R60
1K
0V
C56
73 72 71 70 69 68 67 66 65
100P
(CH)
64
RWC
0V
WRQ 63
FSX
0.7V
62
SBCK
2.0V
61
SFSY
SUB-CODE
0.7V
60
PW
0V
59
EFLG
2.5V
58
SBSY
0V
57
DIGITAL 2.5V
DOUT
56
OUT
0V
MUTER
55
4.9V
RVDD
54
RCHP
2.5V
53
1BIT
RCHN 2.5V
DAC
52
0V
RVSS
51
LVSS 0V
50
LCHN
49
2.5V
LCHP
48
2.5V
LVDD 47
4.9V
MUTEL 46
0.1V
C2F 45
0.1V
ROMXA
44 3V
CK2 43 2.5V
LRSY
2.5V
ANTISHOCK 42
INTERFACE
0V
41
ASLRCK
C51
CD_GND 0.022 100/10
IC91
TA7291S
5V 1 2 3 4 5 6 7 8 9
5V
R93
1 (1/2W)
C96
100P BIM1
(CH)
R98 R96
1 1
8.2K 3.3K
2 2
MT–
3 3
MT+
4 4
C95
CNP11
0.1
TRAY SWITCH PWB-I
SWB101 CAM1
SWB102 CAM2
MAIN PWB-A(4/4)
SWB103 CAM3
SWB104 CAM4
10
– 45 –
+B
C55
100P
(CH)
C54
100P
(CH)
R70
330
CD_D_OUT
1 X
DIG_GND
2
+B Y
Q81
2SD468 C
+5V
6.6V
4.9V
R81
5.5V R84 220
22
C52
CD_7V
+7.3V
CD SIGNAL
3-TRAY MOTOR
–
MOB1
M
+
MAIN CAM MOTOR
–
MOB2
M
TRAY MOTOR
+
CNS2
SWB105
1 1
CD EJECT
SWB106
2 2
CD TRAY CLOSE
3 3
SWB107
CD IN 4 4
SWB108
5 5
CD SET
BIM2
BIM3
CAM SWITCH
GND(D)
1 1
CAM_SW1
2 2
CAM_SW2
3 3
4 GND(D)
4
CAM_SW3
5 5
6 6 CAM_SW4
11
MD-X60
12