DV-S15 (serv.man8). Test mode - Sharp DVD Service Manual (repair manual). Page 3

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TESTMODE
[ROM RENEWAL MODE]
1. Turn the power on and remove the disc on the tray.
2. To put the DVD player into version up mode, press
[9], [8], [7], [6], and [DIRECT SKIP] buttons on the
remote control unit in that order. The tray will open
automatically.
Fig. a appears on the screen and Fig. b appears on
the VFD.
BE F/W VERSION UP MODE
   PLEASE INSERT A DISC
FOR BE F/W VERSION UP.
EXIT:
 POWER
Fig. a  Version Up Mode Screen
Fig. b  VFD in Version Up Mode
The DVD player can also enter the version up mode
with the tray open. In this case, Fig. a will be shown
on the screen while the tray is open.
3. Load the disc for version up. (For closing the tray,
only the "OPEN/CLOSE" button is available.)
4. The DVD player enters the F/W version up mode
automatically. Fig. c appears on the screen and
Fig. d appears on the VFD.
BE F/W VERSION UP MODE
VERSION:F1223S1E
Reading...(*2)
Fig. c  Programming Mode Screen
Fig. d  VFD in Programming Mode (Example)
The appearance shown in (*2) of Fig. c is described
as follows:
Appearance
No.
State
Reading...
Sending files into the memory
Erasing...
Erasing previous version data 
Programming...
1
2
3
Writing new version data
5. After programming is finished, the tray opens auto-
matically. Fig. e appears on the screen and the
checksum in (*3) of Fig. e appears on the VFD. (Fig. f)
BE F/W VERSION UP MODE
VERSION: ********
COMPLETED      SUM:7abc(*3)
Fig. e  Completed Program Mode Screen
Fig. f  VFD upon Finishing the Programing Mode (Example)
At this time, no buttons are available.
6. For tray opening, plug the AC cord into the AC outlet.
7. Turn the power on by pressing the power button and
the tray will close.
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