Ic Data / Block Diagram - Yamaha AX-497 Servise Manual

AX-397
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3 7 63 1515 0
IC DATA
IC301 : M38503G4A-101FP (FUNCTION (1) P.C.B.)
8-bit Microprocessor
No. Port
1 V
CC
2 V
REF
3 AV
SS
4 P4 /INT /PWM
4 3
5 P4 /INT /S
3 2 CMP2
TE
L 13942296513
6 P4 /INT
2 1
7 P4 /INT
1 0
8 P4 /CNTR
0 1
9 P2 /CNTR //S
7 0 RDY1
10 P2 /S
6 CLK1
11 P2 /T D
5 X
12 P2 /R D
4 X
13 P2
3
14 P2
2
15 CNV
SS
16 P2 /X
1 CIN
17 P2 /X
0 COUT
18 /RESET
19 X
IN
20 X
OUT
21 V
SS
22 P1 /(LED )
7 7
23 P1 /(LED )
6 6
24 P1 /(LED )
5 5
25 P1 /(LED )
4 4
26 P1 /(LED )
3 3
27 P1 /(LED )
2 2
28 P1 /(LED )
1 1
29 P1 /(LED )
0 0
30 P0 (AN )
7 8
31 P0 (AN )
6 7
32 P0 (AN )
5 6
33 P0 (AN )
4 5
34 P0 //S
3 RDY2
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35 P0 /S
2 CLK2
36 P0 /S
1 OUT2
37 P0 /S
0 IN2
38 P3 /AN
4 4
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39 P3 /AN
3 3
40 P3 /AN
2 2
41 P3 /AN
1 1
42 P3 /AN
0 0
12
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V 1
CC
V 2
REF
AV 3
SS
P4 /INT /PWM 4
4 3
P4 /INT /S 5
3 2 CMP2
P4 /INT 6
2 1
P4 /INT 7
1 0
P4 /CNTR 8
0 1
P2 /CNTR /S 9
7 0 RDY1
P2 /S 10
6 CLK1
P2 /T D 11
5 X
P2 /R D 12
4 X
P2 13
3
P2 14
2
CNV 15
SS
P2 /X 16
1 CIN
P2 /X 17
0 COUT
RESET 18
X 19
IN
X 20
OUT
V 21
SS
Name I/O Function
MCU Power Supply, +5V
MCU AD Reference
MCU AD Ground
PD I Power Down Detect
TPM/PD I Tape Monitor /Pure Direct SW
PS I SYSTEM Power SW
REM I Remote Control (Wake up)
PRINH I Release the Protection
CEI O Chip Enable (INPUT SEL)
CK O Clock
DATA O Data
TMO/DEST O/I Tape Monitor (397)/Destination Distinction (497)
VRUP O Motor Volume (UP)
VRDN O Motor Volume (DOWN)
CNV MCU Vss: when single chip mode is used, Vcc: when flash writing is used
SS
D43 I AX-497/397 Detect
CDM O CD Direct Mute
MCU Reset
MCU Oscillator In
MCU Oscillator Out
MCU Ground
LEDA O LED (AUX)
LEDTP O LED (TAPE)
LEDM O LED (MD)
LEDC O LED (CD)
LEDT O LED (TUNER)
LEDP O LED (PHONO)
LSBY O LED (POWER)
LEDCDD O LED (CD DIRECT)
LEDTM/PD O LED (TAPE MONITOR/PURE DIRECT)
ENL I Rotary Encoder (Left)
ENR I Rotary Encoder (Right)
MUTE O Mute
CDD I CD Direct SW
PRI I Protection (Overload)
RYSP O Speaker Relay
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y
RYPS O Power Relay
PRDC I Protection (DC)
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PRPS I Protection (Power Supply)
THMR I Protection (Temperature Detection)
THML I Protection (Temperature Detection)
REC I Rec Out Selector Detect
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8
42 P3 /AN
0 0
41 P3 /AN
1 1
40 P3 /AN
2 2
39 P3 /AN
3 3
38 P3 /AN
4 4
37 P0 /S
0 IN2
36 P0 /S
1 OUT2
35 P0 /S
2 CLK2
34 P0 /S
3 RDY2
33 P0 /(AN )
4 5
32 P0 /(AN )
5 6
31 P0 /(AN )
6 7
30 P0 /(AN )
7 8
29 P1 /(LED )
0 0
28 P1 /(LED )
1 1
27 P1 /(LED )
2 2
26 P1 /(LED )
3 3
25 P1 /(LED )
4 4
24 P1 /(LED )
5 5
23 P1 /(LED )
6 6
22 P1 /(LED )
7 7
Q Q
3 6 7 1 3
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