Yamaha DSP-A5 Service Manual page 23

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