Read Sharp UP-3500 (serv.man29) Service Manual online
UP-3500 (V)
SERVICE PRECAUTION
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CHAPTER 3. SERVICE PRECAUTION
1. IPL PROCEDURE FROM EP-ROM
1) Disconnect the AC adapter. (Though the standby mode switch is
set to Standby, the circuit is active. Therefore, be sure to disconnect
the AC plug or the DC plug to cut off the power supply.)
2) Jumber PIN on CPU PWB is set to IPL mode
3) Set 4 EP-ROM to the IPL board and set the IPL board on Sub PWB
(ROM number is printed on IPL board)
4) Reset switch of right side of cabinet is set to ON position
5) Connect the AC adapter and IPL starts
6) After “Complete” message appear on operator display, Remove the
AC adapter
7) Remove the IPL board from Sub PWB and set Jumber PIN on CPU
PWB to Normal position
8) Please do master reset
Jumber PIN(SP1) on CPU PWB
IPL mode
Normal mode
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