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.
Terminal Name Input/Output
FAN_LOCK A/D Input
PROTECT A/D Input
+B_CHECK A/D Input
JOG
FAN_CHK A/D Input
A/D RESET Input/Output
OFF_SET
POWER_LEVEL1
(-B CONT)
POWER_LEVEL2
(REG ON)
TUNER_SM
RDS_RDY
RDS_CLK
RDS_RST
RDS_DO
CCB_CE
CCB_DO
CNVSS
VPP (FLASH)
RESET
CCB_CL
CCB_DI
VSS
VSS (FLASH)
XIN
XOUT
VCC
VCC (FLASH)
POWER KEY
DD_LED
DPL_LED
40 V RELAY
H.P_SW
RX_IN INT Input
SYS_STOP INT Input
DIMMER
DSP_SCCLK
DSP_SCDIN
DSP_SCDOUT
DSP_RESET
DSP_INTREQ
D. TIME CONT
STD_LED
DTS_LED
SURR_LED
– 51 –
Fan stop detection.
Power abnormal detection.
Observe power on input and decide the reset timing.
Input Key input jog.
Fan motor rotation detect input.
1-bit amp. A/D RESET control.
Input 1-bit amp. OFFSET error detection. "L": ABNORMAL
Output 1-bit amp. and power switch detection.
Output Speaker protect.
Input Tuner IF signal monitor.
Input RDS ready output.
Output RDS clock output.
Output RDS RAM reset.
Input RDS data input.
Output TUNER PLL/VOL IC interface chip enable output.
Input TUNER PLL/VOL IC interface data output.
Input GND
Input System microcomputer reset input. "L": RESET
Output TUNER PLL/VOL IC interface clock output.
Output TUNER PLL/VOL IC interface data output.
Input GND
Input Main clock input 4.19 MHz.
Output Main clock input 4.19 MHz.
Input Power supply 5 V.
Input Power ON key input.
Input Dolby digital indicator. "H" (OPEN): OFF
Input Dolby prologic indicator. "H" (OPEN): OFF
Output 40 V control port. "H": ACTIVE
Input Headphones detection switch input.
Remocon decoder input.
AC power signal monitor. "H"→"L" power failure detect.
Output Dimmer
L: Dimmer ON, Power OFF, Power failure
H: Dimmer OFF
Input DSP IC communication strobe serial output.
Output DSP IC communication serial clock output.
Output DSP IC serial data output.
Input DSP IC serial data input.
Output DSP IC communication interface clock.
Input Request signal input to receive DSP data.
"L": DSP Microcomputer demand data
Output Deadtime control port. Only in tuner mode: "H"
Input Not used.
Output Standard sound mode indicator.
"H" (OPEN): OFF
Output DTS indicator. "H" (OPEN): OFF
Output Surround sound mode indicator.
"H" (OPEN): OFF
SD-AT1000
Function
"L": ON
"L": ON
"L": OFF
"L": ON
"L": ON
"L": ON