MDS-JB940
32
32
6-2. BLOCK DIAGRAM DISPLAY/POWER Section
COM01
COM22
FLOURESCENT
INDICATOR TUBE
DISPLAY CONTROL
AC
AC
FUCTION
KEY
REC VOL A
118
REC VOL B
117
SIRCS
4
RV760
VOLUME
X1
10MHz
FL781
39
60
74
FILTER
75
SF EDIT
72
MD LONG
LED
DRIVER
KEY1
139
22
XIN
20
XOUT
D918-921
D404-407
AC
AC
A
MAIN
SECTION
P DOWN
FUCTION
KEY
KEY0
141
S711,712
S714,716,717
FUCTION
KEY
KEY2
138
S721-725
ROTARY
ENCODER
JOG0
123
S713
REMOTE
CONTROL
RECEIVER
1
2
IC761
+3.3V
+5V
REG
1
2
IC902
-7V
REG
2
1
IC402
TR900
D904-907
RELAY
DRIVE
Q901
RY901
IC1(2/2)
S701-706
JOG1
124
SEG01
SEG39
FL DRIVER
IC771
73
POWER
Q756-759
D756-759
+7V
REG
3
1
IC401
KEYBOARD
J801
6
2
5
1
4
3
CONTROL
A1 II
+5V
BUFFER
Q3,4
BUFFER
Q1,2
Q5
J321
Q321
IIC CLK
36
IIC DATA
37
KEYBOARD DATA
116
KEYBOARD CLK
28
KEYBOARD CLK CTRL
114
A1 IN
3
A1 OUT
31
1
DATA(FL)
2
CLK(FL)
128
CS(FL)
FUCTION
KEY
KEY3
137
S731-733
TIMER
TIMER
136
S751
X2
32.768kHz
18
CLOCK OUT
17
CLOCK IN
A0
A18
31
.
29
33
.
35
.
38
.
40
.
42
.
44
.
32
.
30
34
.
36
.
39
.
41
.
43
.
45
.
92
85
77
.
75
.
.
100
94
.
122
119
131
102
.
73
3
37
79
.
80
.
1
.
2
.
8
1
48
.
17
.
.
25
18
.
16
DQ0
DQ15
A1
A19
D0
D15
FLASH ROM
IC2
WE
11
WP
14
CE
26
OE
28
65
WE R/W
90
WP
69
CS0
63
OE
131
STB
19
S RESET
RESET
67
DA
70
CP
69
CS
68
GRID BUFF
Q781,782
61
COM23
62
COM24
63
VFL1
FL-32V
AC
IN
T901
POWER
TRANSFORMER
LINE
FILTER
LF901
D903
D902
-32V REG
Q902
+3.3V REG
Q904
REGULATOR
IC400
7
VCC2
2
AC
6
VCC1
PH5V
5
P DOWN
13
ANA5V
4
+3V REG
Q405
SYS3.3V
8
SRST
10
D401
D402
D403
BT701
LITHIUM ION
BATTERY
D/A +5V
PANEL +5V
AD/DA +3V
OPT +3V
SYS +3.3V
B-UP +3.3V
FL -32V
D911
D910
4
+5V
REG
1
2
IC203
4
+5V
REG
1
2
IC601
4
MOTOR +5V
HEAD +5V
MDM +5V
+7V
D/A +5V
A/D +5V
-7V
LOADING
MOTOR +B