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1
SCHEMATIC DIAGRAM
KEYBOARD UNIT
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or
A
"ELECTRICAL PARTS LIST".
SEG19
B
49
SEG18
50
SEG17
SEG17
51
SEG16
SEG16
52
SEG15
SEG15
53
SEG14
SEG14
54
SEG13
SEG13
55
VDD
56
SEG12
SEG12
57
SEG11
SEG11
58
SEG10
SEG10
59
SEG9
SEG9
60
SEG8
SEG8
61
SEG7
SEG7
62
SEG6
SEG6
63
SEG5
SEG5
64
C
L1801
NM
DGND
SEGMENT LCD
D
SYMBOL
E
F
B
F
8
1
2
GRILLE uCON
32
31
SEG36
SEG38
SEG19
30
SEG18
SEG37
SEG39
29
KST4
28
NC2
27
KDT3
26
KST2
IC1801
25
PD6340A
VSS
24
X1
23
X0
22
MODA
21
KYDT
20
NC1
SEG4
19
SEG3
DPDT
18
REM
17
DGND
V1801
A, C, D
B
CAW2020
V1801
CAW2018
SIZE
RS1/10SR***J-T
RS1/4SA***J-T
ILMGND
DEH-140UB/XNEW5
2
3
S1821
1
S1822
1
LEFT
KST0
SEG36
SEG37
SEG38
S1823
SEG39
1
KST4
EQ
KST1
KDT3
S1824
KDT2
1
CLOCK
KST2
X1801
S1825
CSS1547
1
KST3
5 MHz
S1826
1
S1827
SOURCE
1
DGND
SRC
KST4
IC1802
GP1UXC14RK
REMOTE
R1803
100
NM
DGND
D1851 - D1865 : SML-D12P8W(KL)
COLOR2
GREEN
REFERENCE AREA MAP
GRILLE uCON&LCD
KEY MATRIX & CONNECTOR
LED
USB
AUX
3
4
KEY MATRIX
S1833
2
1
2
S1834
2
1
2
RIGHT
S1828
1
2
S1829
2
1
2
LIST
S1835
S1830
2
1
2
1
2
4
6
S1836
S1831
2
1
2
1
2
2
3
1
2
S1832
1
2
2
EJECT
DGND
R1801
2.2k
2.2k
R1802
1801-1820
1821-1850
1851-1910
1911-1920
1921-1930
4
BAN
/ESC
S1837
1
2
S1838
1
2
S1839
1
2
5
S1840
1
2
S1841
1
2
DISP
LED
only D
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