Read Sharp QT-CD50H (serv.man3) Service Manual online
QT-CD50
– 16 –
Figure 16 BLOCK DIAGRAM OF IC
IC201 9BW03301042Q23 (CXP1042Q):System Microcomputer
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19
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17
16
15
14
13
12
11
10
10
9
8
7
7
6
6
5
5
4
3
2
1
64 63 62 61 60 59 58 57 56
54 53 52
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34
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20
LOAD/DECK-PT/PB3
PB2/UNLOAD/BATT-W
PD3/DISC-OUT/BATT-E
PD2/DISC-IN/OPEN
PD1/SYNC IN
PD0/GFS
S1/SUBQ
PX2/SENS
POB/DATA
SC/SQCK/CLK
EC/SCOR
PY2/FOK
PY1/MODE
PY0/XLT
PB1/MUT2
PB0/MUTE
PC3/K13
PC2/K12
PC1/K11
PC0/K10
KSO/PA0
KS1/PA1
KS2/PA2
KS3/PA3
RS3/PE3
RS2/PE2
RS1/PE1
RS0/PE0
SEG19
SEG18
INT1/RMC
WP
RESET/RST
EXTAL/C4M
XTAL
VL
V
DO
VL
C3
VL
C2
VL
C1
COM0
COM1
COM2
Vss
N.C.
21 22 23 24 25 26 27 28
29
29 30 31 32
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
COM3
55
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