Yamaha DSP-A5 Service Manual page 23

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IC501 : M30217MA-A203FP
16-bit Microcomputer
Pin Pin
Port
No. Name
67 P05/FL21 P1
68 P04/FL20 P2
69 P03/FL19 P3
70 P02/FL18 P4
71 P01/FL17 P5
72 P00/FL16 P6
73 P57/FL15 P7
74 P56/FL14 P8
75 P55/FL13 P9
76 P54/FL12 P10
77 P53/FL11 P11
78 P52/FL10 P12
79 P51/FL09 P13
80 P50/FL08 P14
81 P67/FL07 P15
82 P66/FL06 P16
83 P65/FL05 P17
84 P64/FL04 P18
IC107 : BU2090
Serial Input/Parallel Output Driver for Output port expansion
TE
L 13942296513
VSS 1
DATA
2
CLOCK 3
Q0 4
Q1
5
Q2
6
7
Q3
8
Q4
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I/O Function
O Segment 1 for FL display
O Segment 2 for FL display
O Segment 3 for FL display
O Segment 4 for FL display
O Segment 5 for FL display
O Segment 6 for FL display
O Segment 7 for FL display
O Segment 8 for FL display
O Segment 9 for FL display
O Segment 10 for FL display
O Segment 11 for FL display
O Segment 12 for FL display
O Segment 13 for FL display
O Segment 14 for FL display
O Segment 15 for FL display
O Segment 16 for FL display
O Segment 17 for FL display
O Segment 18 for FL display
CONTROL
LOGIC
(TOP VIEW)
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2 9
8
Pin
Port
No. Name
85 P63/FL03 P19
86 P62/FL02 P20
87 P61/FL01 P21
88 P60/FL00 P22
89 VEE
90 P107/AN7 LIMDT
91 P106/AN6 PRV
92 P105/AN5 PRD
93 P104/AN4 METER
94 P103/AN3
95 P102/AN2 /FMT
96 P101/AN1 KEY2
97 AVSS MG
98 P100/AN0 KEY1
99 VREF +5M
100 AVCC +5BU
Q Q
3 6 7 1 3 1 5
Pin
Port
No. Name
16 VDD
1 VSS VSS
2 DATA DTB
Q11
15
3 CLOCK CKB
4 Q0 SW1
14 Q10
5 Q1 SW2
6 Q2 SW3
12 Q9
7 Q3 SW4
8 Q4 SW5
Q8
12
9 Q5 /CONT1
10 Q6 /CONT2
Q7
11
11 Q7 /-10dB
10
Q6 12 Q8 /ICAC
13 Q9
14 Q10
9
Q5
15 Q11 /T-MUTE O Tuner mute data output (L : Mute on)
16 VDD VDD
* Video input
Selector
co
Control
(H=High,
.
L=Low,
X=Don't care)
9 4 2 8
Pin
I/O Function
O Segment 19 for FL display
O Segment 20 for FL display
O Segment 21 for FL display
O Segment 22 for FL display
VP O Power supply for FL display
I Limitter DC detect input
I PS (power voltage) protection
AD value detect input
I DC (power amp voltage) protection
AD value detect input
I Tuner meter AD value input
NC O No connection
O Full mute output (L: ON)
I Key 2 AD data value input
Ground
I Key 1 AD data value input
Standard power supply for AD input
+5V power supply
0 5 8 2 9 9 4 2 8
Pin
I/O Function
Ground
I Control data input
I Control clock input
O Video select data
O output 1-5(*)
O
O
O
O Limitter control data output 1,2
O
O –10dB control data output
(L : –10dB)
O Initial clear output for AC3D2av
NC O Unconnected
NC O Unconnected
+5V power supply
m
Video Input SW1 SW2 SW3 SW4 SW5
(Pin4) (Pin5) (Pin6) (Pin7) (Pin8)
CBL/SAT H L X
D-TV H H X
DVD/LD H L
VCR L H X
V-AUX H L H
OFF L L X
DSP-A5
9 9
9 9
from
microcomputer
for
video input
selector
L H
L H
L H H
X H
H H
X L
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