Function Table Of Ic - Sharp MD-X60 Service Manual

IC901 RH-iX2757AFZZ:System Control Micon (1/4)
Terminal Name
Pin No.
1 SOL
2 MOTOR
3* Not used
4 V.LOAD
5 RESET
6 S-ID
7 LOAD
8 SYN
9 –
10 EEP DO
11 EEP DI
12 EEP SK
13 EEP CS
14 DATA
15 CLK
16 LCK1
17 LCK2
18 LCK3
19 POWER
20 RLY
21 FAN MOTOR
22 –
23 MOTOR
VOLTAGE
24 CAM MOTOR
FOWARD
ROTATION
25 CAM MOTOR
REVERSE
ROTATION
26 TRAY MOTOR
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

FUNCTION TABLE OF IC

Input/Output
Port Name
P60/A16 Output
P61/A17 Output
P62/A18 Output
P63/A19 Output
P64/RD Output
P65/WR Output
P66/WAIT Output
P67/ASTB Output
VDD –
P100 Input
T15/T05
P101 Output
T16/T06
P102 Output
T17/T07
P103 Output
T18/T08
P30/T00 Output
P31/T01 Output
P32/T02 Output
P33/T11 Output
P34/T12 Output
P35/T100 Output
P36/T101 Output
P37 Output
TEST/VPP –
P90 Output
P91 Output
P92 Output
P93 Output
Active Setting
Level in Reset
H L TAPE mechanism solenoid control. "H" state: Solenoid ON
H L TAPE mechanism motor control. "H" state: Motor drive
– – Open
L H Selection of voltage 6.5V/5V to be supplied to MD
Usually L Only when MD is set to LOAD or EJECT mode, "H"
is set,selecting the 6.5 V line.
H L Reset signal for MD microcomputer
H L Track mark signal for MD and MD ON/OFF control signal.
H – MD loading SW detection.DISC IN: H
H L Syncro signal in case of MD syncro REC
– – To be connected to VDD
L/H – Serial data input into EEPROM (S29194A)
At the EEPROM side, data is output at the H edge.
The TUNER preset is set in the backup memory.
L/H L Output of serial data to EEPROM (S29194A)
At the EEPROM side, data is taken in at the H edge.
H L Output of serial clock to EEPROM (S29194A)
Usually 27 clock one communication. Address 8-bit. Data 16-
bit
H L Output of chip selection to EEPROM (S29194A)
L/H L Output of 12-bit serial data to serial parallel conversion
element
MSB fast transmission
L H Output of 12-bit serial clock to serial parallel conversion
element
At the serial parallel conversion element side, data is taken in
at the H edge.
H L Latch clock to serial parallel conversion element 1. H pulse
output
At the serial parallel conversion element side, signal is output
to the port at the H edge.
H L Latch clock to serial parallel conversion element 2. H pulse
output
At the serial parallel conversion element side, signal is output
to the port at the H edge.
H L Latch clock to serial parallel conversion element 3. H pulse
output
At the serial parallel conversion element side, signal is output
to the port at the H edge.
H L Power ON/OFF control.ON: H Output paper, OFF: L output
H L Relay ON/OFF control
ON: H output paper OFF: L output
H L Heat radiation fan motor control
H output according to AN14 posister input A/D
– – Flash ROM writing VPP terminal
L H Cam motor voltage control. Nch open drain
L H TA7291S IN2 control. Refer to the true value table.
For Nch open drain, the external pull-up is required.
L H TA7291S IN1 control. Refer to the true value table.
For Nch open drain, the external pull-up is required.
L H TA7291S IN2 control. Refer to the true value table.
For Nch open drain, the external pull-up is required.
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MD-X60
Function