Sharp ER-A750 Service Manual page 15

(6) Turn off the power of the ER-A750.
(7) Remove the ER-A7RS from the ER-A750.
(8) Perform the master reset. (Refer to CHAPTER 4.)
4) IPL from PC via IR (infrared) communication
(1) IR communication between the ER-A750 and PC is as follows:
RS-232C
PC
without IR
1. PC+CE-IR4 system
PC with IR
2. PC only system
(2) Procedures on the PC side and on the ER-A750 side are as
follows:
No Procedure on P.C. side
1 Copy "A7IPL.EXE" and S-type ROM object file
(ex. "A750_0A.ROM) into your Personal Computer (P.C.).
* "A7IPL.EXE" and S-type ROM object file is separately
supplied.
6 Connect P.C. and ER-A750 via IR.
CE-IR4
ER-A750
ER-A750
No Procedure on ER-A750 side
2 Turn OFF the power.
3 Select IPL Receiving Mode.
Set IPL switch "ON".
1 Open the IR cover of the ER-A750.
2 IPL switch: Set the IPLIR SW to the left side when
viewed from the front.
4 Turn ON the power.
5 Starting of IPL Receiving Mode.
ER-A750 shows
"IPL from IR"
IPL from IR
3 – 5
ER-A750
(SIDE VIEW)
IR unit
IPLIR SW
IPLIR SW