Sharp SD-AT1000 Service Manual page 51

IC701 RH-iX0558AWZZ: System Microcomputer (IX0558AW) (1/2)
Pin No. Port Name
1 PA5/AN5
2 PA4/AN4
3 PA3/AN3
4 PA2/AN2
5* PA1/AN1
6 PA0/AN0
7 P97/BUA02/AN15
8 P96/PWM0/AN14
9 P95/RTP0/AN13
10* P94/RTP1/AN12
11* P93/SRDY3/AN11
12* P92/SCLK3/AN10
13* P91/SOUT3/AN9
14* P90/SIN3/AN8
15 P83/CNTR0/CNTR2
16 P82/CNTR1
17 CNVSS
18 RESET
19 P81/XCOUT
20 P80/XCIN
21 VSS
22 XIN
23 XOUT
24 VCC
25 P77/INT4/BUZ01
26 P76/T3OUT
27 P75/T1OUT
28* P74/PWM1
29 P73/INT3/DIMOUT
30 P72/INT2
31 P71/INT1
32 P70/INT0
33 P67/SRDY2/SCLK22/FLD55 DSP_CS
34 P66/SCLK2/FLD54
35 P65/TXD/FLD53
36 P64/RXD/FLD52
37 P63/FLD51
38 P62/FLD50
39* P61/FLD49
40 P60/FLD48
41 P57/FLD47
42 P56/FLD46
43 P55/FLD45
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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Terminal Name Input/Output
FAN_LOCK A/D Input
PROTECT A/D Input
+B_CHECK A/D Input
JOG Input
FAN_CHK A/D Input
A/D RESET Input/Output
OFF_SET Input
POWER_LEVEL1 Output
(-B CONT)
POWER_LEVEL2 Output
(REG ON)
TUNER_SM Input
RDS_RDY Input
RDS_CLK Output
RDS_RST Output
RDS_DO Input
CCB_CE Output
CCB_DO Input
CNVSS Input
VPP (FLASH)
RESET Input
CCB_CL Output
CCB_DI Output
VSS Input
VSS (FLASH)
XIN Input
XOUT Output
VCC Input
VCC (FLASH)
POWER KEY Input
DD_LED Input
DPL_LED Input
40 V RELAY Output
H.P_SW Input
RX_IN INT Input
SYS_STOP INT Input
DIMMER Output
Input
DSP_SCCLK Output
DSP_SCDIN Output
DSP_SCDOUT Input
DSP_RESET Output
DSP_INTREQ Input
D. TIME CONT Output
Input
STD_LED Output
DTS_LED Output
SURR_LED Output
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Function
Fan stop detection.
Power abnormal detection.
Observe power on input and decide the reset timing.
Key input jog.
Fan motor rotation detect input.
1-bit amp. A/D RESET control.
1-bit amp. OFFSET error detection. "L": ABNORMAL
1-bit amp. and power switch detection.
Speaker protect.
Tuner IF signal monitor.
RDS ready output.
RDS clock output.
RDS RAM reset.
RDS data input.
TUNER PLL/VOL IC interface chip enable output.
TUNER PLL/VOL IC interface data output.
GND
System microcomputer reset input. "L": RESET
TUNER PLL/VOL IC interface clock output.
TUNER PLL/VOL IC interface data output.
GND
Main clock input 4.19 MHz.
Main clock input 4.19 MHz.
Power supply 5 V.
Power ON key input.
Dolby digital indicator. "H" (OPEN): OFF
Dolby prologic indicator. "H" (OPEN): OFF
40 V control port. "H": ACTIVE
Headphones detection switch input.
Remocon decoder input.
AC power signal monitor. "H"→"L" power failure detect.
Dimmer
L: Dimmer ON, Power OFF, Power failure
H: Dimmer OFF
DSP IC communication strobe serial output.
DSP IC communication serial clock output.
DSP IC serial data output.
DSP IC serial data input.
DSP IC communication interface clock.
Request signal input to receive DSP data.
"L": DSP Microcomputer demand data
Deadtime control port. Only in tuner mode: "H"
Not used.
Standard sound mode indicator.
"H" (OPEN): OFF "L": ON
DTS indicator. "H" (OPEN): OFF
Surround sound mode indicator.
"H" (OPEN): OFF "L": ON
SD-AT1000
"L": ON
"L": ON
"L": OFF
"L": ON