SERVICE MANUAL
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4. JIG PC BOOT DPS24 (PART No. BA-771030J)
JIG PC BOOT is used for BOOT BLOCK recovery and for CPU circuit testing etc.
Insert in SLOT 1 on the OPTION BOARD. Make sure the power is off before inserting. The JIG PC BOOT will not
work in any other slot besides SLOT 1.
When the DPS24 power is turned on, the SELF CHECK function will operate to check each CHIP. If a fault is found
somewhere, FAILED will appear and operation will stop.
FAILED will appear when nothing after MIDI SPDIF, WCLK, ASCII are connected, but this is not an indication of
faulty operation.
5. OS BOOT BLOCK RECOVERY PROCEDURE
Insert the PC JIG BOOT into SLOT 1. Make sure the power is off before inserting. The JIG PC BOOT will not work
in any other slot besides SLOT 1.
1. When the DPS24 power is turned on, the SELF CHECK function will operate to check each CHIP. After confir-
mation, the screen will normally be returned to.
2. Press the SETUP button, then the F6(OS) button.
3. Press the F2/F3/F4 (upgrade from EPROM) button.
4. Press the F6(YES) button.
5. Press the F6(OK) button.
6. OS UPDATE PROCEDURE
• OS UPDATE FROM CD-ROM
You can update the OS from the built-in CD-ROM drive. Please use a CD-ROM that contains the OS for the
DPS24.
You can create the OS disc by using your PC's CD-R/W function to write the “DPS24.bin file” onto an ISO 9660
CD-ROM disc.
1. Turn the DPS24 on and insert the OS disc
2. Press the SETUP button, then the F6(OS) button.
3. Set “Update from” to “CD” with Q1 knob.
4. Press the F5/F6 (UPGRADE) button.
5. Confirm the displayed OS version. If not displayed, repeat the procedure.
6. If the correct version is displayed, press the F6(YES) button.
7. Press the F6 (OK) button.
8. Reboot the DPS24.
• OS UPDATE FROM USB
The OS update can be made from the PC via the USB port.
You must have the "OS Loader software for DPS24".
The following files are required for the update:
dps24usb.sys (USB set up file)
dps24usb.inf (USB set up file)
usbrom.exe (USB transmission software)
dps24.bin (OS file for DPS24)
These files must be placed in the same folder. (eg. c:\DPS24)
Installing the USB drivers:
1. Connect USB cable between DPS24 and PC.
2. Power up the PC and let it complete the boot up process.
3. Power up the DPS24.
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