Yamaha DSP-A595a Service Manual page 22

DSP-A595a
IC800 : LC876564A-5M19
µ
8 bit Main -COM
Pin Pin
Port I/O
No. Name
1 P16 FLA-CLK I/O Flash clock
2 P17 FLA-I/O I/O Flash input/output
3 P30 FLA-SEL I/O Flash select
4 P31 T-MUTE O Tuner mute (L: ON)
DSP-MTS O Transmit data for Sub µ-COM
5 P32
DSP-STM I Receive data from Sub µ-COM
6 P33
DSR-SCK O Clock for Sub µ-COM
7 P34
DSP-RTN I Clock from Sub µ-COM
8 P35
DSP-TRQ I Transmit request from Sub µ-COM
9 P36
DSP-RESET O Reset for Sub µ-COM
10 P37
11 /RES /RES
12 XT1 T-/ST I Stereo from Tuner
13 XT2
14 Vss1 Vss1
15 CF1
16 CF2
17 VDD1 VDD1
18 P80/AN0 KEY1 I Key 1 AD input
19 P81/AN1 KEY2 I Key 2 AD input
20 P82/AN2 KEY3 I Key 3 AD input
21 P82/AN3 KEY4 I Key 4 AD input
22 P84/AN4 T-METER I Tuner meter AD input
23 P85/AN5 PRO1 I Protection 1 detect (PRD)
24 P86/AN6 PRO2 I Protection 2 detect (PRI)
25 P85/AN5 PRO3 I Protection 3 detect (PRV1)
∗1 Protection 1, 2 and 3 detect
• After a few seconds the Power ON, and protection detect start.
Protection 1 Abnormal DC of the amplifier.
Protection 2 Abnormal overcurrent of the amplifier.
Protection 3 Abnormal Voltage of the amplifier.
21
Function
System reset
Unconnected
Ground
Ceramic Oscillator Connected (10MHz)
Ceramic Oscillator Connected (10MHz)
Power supply
Detection
Pin Pin
Port
No. Name
26 P70/INT0 PDT
27 P71/INT1 FMT
28 P72/INT2
29 P73/INT3 REMOTE
30 S0/T0 G1
31 S1/T1 G2
32 S2/T2 G3
33 S3/T3 G4
34 S4/T4 G5
35 S5/T5 G6
36 S6/T6 G7
37 S7/T7 G8
38 S8/T8 G9
39 S9/T9 G10
40 S10/T10 G11
41 S11/T11 G12
42 S12/T12 G13
43 S13/T13 G14
44 S14/T14 G15
45 S15/T15 G16
46 VDD3 VDD3
47 S16/PC0 P1
∗1
48 S17/PC1 P2
∗1
49 S18/PC2 P3
∗1
50 S19/PC3 P4
I/O Function
I Power down detect
O Full mute (L : ON)
I/O Unconnected
I Remote Control signal
O FL Grid 1
O FL Grid 2
O FL Grid 3
O FL Grid 4
O FL Grid 5
O FL Grid 6
O FL Grid 7
O FL Grid 8
O FL Grid 9
O FL Grid 10
O FL Grid 11
O FL Grid 12
O FL Grid 13
O FL Grid 14
O FL Grid 15
O FL Grid 16
Power supply
O FL Segment 1
O FL Segment 2
O FL Segment 3
O FL Segment 4