Roland HP-555G Service Notes page 13

HP-555G
(2) PC1: Settings for connection to a PC-9800.
Set the computer switch to PC1. An underline will be displayed below P1 in the LCD.
Connect a computer test cable (part no. 17049906) to the Computer connector under the keyboard, and turn on the switch of the
computer test cable. If the result is OK, the following display will appear.
Turn off the switch of the test cable.
If the result is OK, the following display will appear in the LCD.
(3)PC2: Settings for connection to an IBM-compatible computer
Set the computer switch to PC2. An underline will be displayed below P2 in the LCD.
Connect a computer test cable (part no. 17049906) to the Computer connector under the keyboard, and turn on the switch of the
computer test cable. If the result is OK, the following display will appear.
Turn off the switch of the test cable.
If the result is OK, the following display will appear in the LCD.
Press the [Function] button to proceed to item 7.
7. Floppy Disk Drive check
When floppy disk has not inserted, "NO DISK" will appear in the LCD.
Insert formatted 2DD disk to the drive.
When there is no problem, "2DD: OK" will appear in the LCD.
(If there is a problem, "2DD: NG" will appear in the LCD.)
Then insert 1.44Mb formatted 2HD disk to the drive.
When there is no problem, "2HD: OK" will appear in the LCD.
(If there is a problem, "2HD: NG" will appear in the LCD.)
Press the [Function] button to proceed to item 8.
Nov. 1998
13