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SHARP SERVICE MANUAL JX8200SM [8] ADJUSTMENTS
6. ICU PWB/flash memory PWB setting
A. Flash memory setting
(1) Flash memory short pin setting
J401
1-2 (short) EX
ROM Bank 0 or 1
J402 (Lower 4MB)
1-2
not write protected
J403 (Higher 4MB)
1-2
not write protected
J404
1-2 (short)
ROM Bank 1
(Ex. If you wish to use Flash ROM as Bank 1, please short the J401
pin 1-2 and J404 pin 1-2.)
Set the short pins on the flash memory as shown below. The jumpers
J401/404 are different depending on the destination.
Set them according to the destination.
When the flash memory is extended, short jumpers J/402/403 pin 1-2.
(2) Flash memory rewriting
a. Necessary items
Windows personal computer
IDT/Sim 5.2L ROM 1 set (IC22, IC23)
2-3
Write protected
2-3
Write protected
2-3 (short)
ROM Bank 0
8 – 12
IDT/Sim exclusive-use cable
b. IDT/Sim initializing
1
Insert IDT/Sim 5.2L ROM into IC22 and IC23. (If there is a ROM
already inserted, replace it.)
Short JPI on the ICU PWB.
IC23
(IDT / Sim 5.2L ROM)
IC22
(IDT / Sim 5.2L ROM)
JP1
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