Read Sharp SD-EX200 (serv.man18) Service Manual online
SD-EX200H
– 48 –
IC701 RH-iX0557AW00: System Microcomputer (IX0557AW) (1/2)
1
PA5/AN5
KEY2
A/D Input
A/D input, main set key.
2
PA4/AN4
KEY3
A/D Input
A/D input, main set key.
3
PA3/AN3
TUN_SM
Output
TUNER IF signal monitor.
4*
PA2/AN2
DAC_DATA
Output
Fix to "L".
5*
PA1/AN1
DAC_CLOCK
A/D Input
Digital analog converter CLK output.
6
PA0/AN0
PROTECT
A/D Input
Power abnormal detection.
7
P97/BUZ02/AN15
MOT_LOCK
A/D Input
Lid motor over current detection.
8
P96/PWM0/AN14
O/C_SW
A/D Input
A/D input, CD open/close switch.
9
P95/RTP0/AN13
H/P_SW
Input
Headphones switch input detection.
10
P94/RTP1/AN12
FAN_LOCK
A/D Input
Fan stop detection.
11
P93/SRDY3/AN11
FAN_CHK
Input
Ventilation fan motor control. H: FAN ON
12
P92/SCLK3/AN10
POWER_LEVEL 1
Input
1-bit amp. and power switch protect.
13
P91/SOUT3/AN9
POWER_LEVEL 2
Input
Speaker protect.
14
P90/SIN3/AN8
+B_CHK
Input
Observe power on input and decide reset timing.
15
P83/CNTR0/CNTR2
S_MUTE
Output
Audio mute control. H: MUTE ON
16
P82/CNTR1
TIMER_STBY
Output
Timer stand-by LED control. H: LED ON
17
CNVSS
CNVSS
Input
GND
18
RESET
RESET
Input
System microcomputer reset input. L: RESET
19
P81/XCOUT
SP_RELAY
Output
Speaker output control by relay. H: RELAY ON
20
P80/XCIN
POWER
Output
Main trans ON/OFF control by relay. H: RELAY ON
21
VSS
VSS
Input
GND
22
XIN
XIN
Input
Main clock input. 4.19 MHz
23
XOUT
XOUT
Output
Main clock input. 4.19 MHz
24
VCC
VCC
Input
Power supply 5 V.
25*
P77/INT4/BUZ01
NO USE
Output
Open.
26*
P76/T3OUT
CD_FUNC
Output
CD & Ext. DIG function selector.
27
P75/T1OUT
DIG_FUNC
Output
Ext. DIG out ON/OFF control.
L: DIG OUT ON H: DIG OUT OFF
L: DIG OUT ON H: DIG OUT OFF
28
P74/PWM1
A/D_RESET
Output
1-bit amp. A/D reset control.
29*
P73/INT3/DIMOUT
NO USE
Output
Open.
30
P72/INT2
RX-IN
Input
Remote control decoder input.
31
P71/INT1
SYS_STOP
Input
AC power signal monitor.
32
P70/INT0
OFFSET
Input
1-bit amp. offset error detection.
33
P67/SRDY2/SCLK/
CD_RESET
Output
SANYO CD DSP reset output.
FLD55
L: RESET
34
P66/SCLK2/FLD54
CD_CLK
Output
SANYO CD DSP interface clock output.
35
P65/TXD/FLD53
CD_DI
Output
SANYO CD DSP interface data output.
36
P64/RXD/FLD52
CD_CE
Input
SANYO CD DSP interface chip enable.
37
P63/FLD51
CD_DO
Input
SANYO CD DSP interface data input.
38
P62/FLD50
CD_DRF
Input
SANYO CD DSP RF monitor signal.
39
P61/FLD49
CD_WRQ
Input
SANYO CD DSP interface syncro signal.
40
P60/FLD48
CE
Output
SANYO TUNER PLL/VOL IC interface chip enable output.
41
P57/FLD47
CLK
Output
SANYO TUNER PLL/VOL IC interface clock output.
42
P56/FLD46
DI
Output
SANYO TUNER PLL/VOL IC interface data output.
43
P55/FLD45
DO
Input
SANYO TUNER PLL/VOL IC interface data input.
44
P54/FLD44
EQ_CONT
Output
VOL 0-26: H VOL 27-40: L
POWER OFF, CLOCK CONFIRMATION: L
POWER OFF, CLOCK CONFIRMATION: L
45
P53/FLD43
40V_RELAY
Output
40 V control port. "H": ACTIVE "L": OFF
46*-48*
P52/FLD42-P50/FLD40
NO USE
Output
Open.
49*-55*
P47/FLD39-P41/FLD33
NO USE
Output
Open.
56
P40/FLD32
SEG_24
Output
FL segment driver.
Port Name
Terminal Name
Pin No.
Input/Output
Function
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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