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MDS-JE770
44
44
6-7. SCHEMATIC DIAGRAM – MAIN SECTION (2/2) – • See page 51 for IC Block Diagrams.
R434
R407
C402
C412
C424
C442
R425
R424
C405
C401
C411
C406
C416
C423
C425
C431
C432
L831
Q821
R21
R22
R821
R822
R823
R825
R826
R828
R420
R431
R912
R824
R827
R911
R421
C441
R441
R443
R442
C461
C466
R406
JW451
JW452
C404
FB410
R423
Q822
D421
Q911
C932
C931
C930
D411
D412
D461
D462
D466
D467
C422
C421
EP940
C941
C942
IC406
IC411
CN406
BT406
IC421
CN830
IC401
D422
IC440
L834
C940
CN400
FB832
FB8
33
FB
836
FB
835
Q440
Q445
D409
D408
D406
R432
R433
D433
D431
D432
D401
D402
D403
D404
FB465
0µH
FB460
0µH
Q21
Q34
Q35
R853
R854
R851
D851
R855
R856
R852
C852
C855
C854
C853
C851
Q851
J851
22k
10k
0.1
0.1
0.1
0.01
220
220
0.01
10000
16V
10000
16V
0.33
50V
1000
6.3V
100
63V
47
50V
33
25V
22
25V
JUMPER
2SC2603TP-EF
10k
10k
10k
10k
10k
10k
10k
10k
JUMPER
100
47k
4.7k
4.7k
2.2k
22k
100
16V
22k
22k
15k
1000
35V
1000
35V
220
JUMPER
JUMPER
100
10V
JW
100k
2SC2603TP-EF
11ES2-NTA2
2SD2144S-TP-UVW
0.1
0.1
0.1
11ES2-NTA2B
11ES2-NTA2B
11ES2-NTA2B
11ES2-NTA2B
11ES2-NTA2B
11ES2-NTA2B
0.1
0.1
EARTH
PLATE
0.1
0.1
M62016L
M5F7805L
2P
ML1220
M5293L
6P
BA033T
RD4.7EB2
M54641L
JUMPER
0.1
UN4211-TA
2SA1115TP-EF
11EQS04-NTAB2
11EQS04-NTAB2
1SS133T-72
680
220
1SS119-72
1SS119-72
1SS119-72
11EQS04-NTA2B
11EQS04-NTA2B
11EQS04-NTA2B
11EQS04-NTA2B
UN4211-TA
UN4211-TA
UN4211-TA
10k
10
5.6k
1SS133T-72
JUMPER
JUMPER
4.7k
0.1
0.1
0.1
0.1
0.1
2SC2603TP-EF
A1 I/O
20
15
16
17
18
19
11
12
13
14
10
6
7
8
9
1
2
3
4
5
22
21
KB.DATA
KB.CLK
KB.CTL
IIC B
U
SY
IIC PO
W
E
R
IIC
D
A
TA
IIC
C
LK
GND
+5V
IIC/KB CLK
IIC/KB DATA
IIC POWER
IIC BUSY
RESET
LOADING DRIVER
1
5
11
A1
CONTROL
VOLTAGE
SWITCH
Q440,445
REFERENCE
+3.3V
REGULATOR
REGULATOR
+5V
REGULATOR
BUFFER
BUFFER
BUFFER
BUFFER
OFF SWITCH
KEYBOARD
(CHASSIS)
DRIVE
RELAY
-32V
(CHASSIS)
(1/2)
BOARD
MAIN
(Page43)
BOARD
KB
CN2780
(Page47)
BOARD
PT
CN921
(Page49)