![background image](http://html.mh-extra.com/html/sharp/up-5300/up-5300_service-manual_373328013.webp)
3. Open the upper cabinet.
4. Connect the BIOS loading board to the option ROM/RAM connec-
tor CN5 on the main PWB, and then close the cabinet.
5. Writing the BIOS ROM program starts by turning on the power
switch on the right side.
To determine the status of the LED lights on the special service
PWB when a BIOS ROM program is being written, see the table
on the next page.
Writing is complete (automatic completion) when the green LED
(LED9) on the BIOS loading board lights up.
6. After writing is complete, turn off the power switch on the right side
to remove the BIOS loading board, and turn on the power switch
on the left side again to check whether the BIOS program starts
up normally or not.
LED DISPLAY STATUS
[
E
: ON (Lighting) — : OFF]
<In normal operation>
LED1
(RED)
LED2
(RED)
LED3
(RED)
LED4
(RED)
LED5
(RED)
LED6
(RED)
LED7
(RED)
LED8
(RED)
LED9
(GREEN)
FUNCTION
E
E
E
E
E
E
E
E
—
Start of COPY FUNCTION
—
—
—
—
E
—
—
—
—
Start initializing
—
—
—
—
—
E
—
—
—
Erasing F-ROM (LED6: RED is blinking)
—
—
—
—
E
E
—
—
—
Start copy programming to F-ROM from EP-
ROM
—
—
—
—
E
E
—
—
—
Programming: Bank0 C0000 h (64KB)
E
—
—
—
E
E
—
—
—
Programming: Bank0 D0000 h (64KB)
—
E
—
—
E
E
—
—
—
Programming: Bank0 E0000 h (64KB)
E
E
—
—
E
E
—
—
—
Programming: Bank0 F0000 h (64KB)
—
—
—
E
E
E
—
—
—
Programming: Bank1 C0000 h (64KB)
E
—
—
E
E
E
—
—
—
Programming: Bank1 D0000 h (64KB)
—
E
—
E
E
E
—
—
—
Programming: Bank1 E0000 h (64KB)
E
E
—
E
E
E
—
—
—
Programming: Bank1 F0000 h (64KB)
—
—
—
—
—
—
E
—
—
Start verifying the program in the F-ROM
—
—
—
—
—
—
E
—
—
Verifying: Bank0 C0000 h (64KB)
E
—
—
—
—
—
E
—
—
Verifying: Bank0 D0000 h (64KB)
—
E
—
—
—
—
E
—
—
Verifying: Bank0 E0000 h (64KB)
E
E
—
—
—
—
E
—
—
Verifying: Bank0 F0000 h (64KB)
—
—
—
E
—
—
E
—
—
Verifying: Bank1 C0000 h (64KB)
E
—
—
E
—
—
E
—
—
Verifying: Bank1 D0000 h (64KB)
—
E
—
E
—
—
E
—
—
Verifying: Bank1 E0000 h (64KB)
E
E
—
E
—
—
E
—
—
Verifying: Bank1 F0000 h (64KB)
—
—
—
—
E
—
E
—
—
Setting protection the F-ROM
E
E
E
E
E
E
E
E
E
END of complete COPY FUNCTION
2 – 7
Summary of Contents for UP-5300
Page 103: ... B S i d e 9 2 ...
Page 105: ... B S i d e 9 4 ...
Page 106: ...3 V G A P W B A S i d e B S i d e 9 5 ...
Page 107: ...4 R i s e r P W B A S i d e B S i d e 5 T P S w i t c h P W B S w i t c h P W B 9 6 ...
Page 108: ...6 I N V E R T E R P W B A S i d e B S i d e 7 L C D R E L A Y P W B A S i d e B S i d e 9 7 ...