PEB-4720 Main Board
follow the steps below.
B-1) Make sure the power switch on the VFD display is on before powering the main
system.
B-2) Make sure that the 9000PB0270 secondary I/O board JP1 & JP2 jumper settings
are correct.
The proper settings are:
JP1 PINs 1-2 shorted
JP2 PINs 1-2, PINs 3-5 and PINs 4-6 shorted
B-3) Fuse F1 on the 9000PB0270 secondary I/O board could be faulty
C) Check if the 10pin cable is properly connected between 9000PB0270 secondary I/O
board CN7 and mainboard J43.
D) The 9000PB0270 secondary I/O board could be defective.
E) The on-board COM4 could be defective.
External CD-ROM is not Functioning Properly
A) Make sure IDE2 is set to “AUTO” in the CMOS setup.
B) If compact flash memory is installed, remove it and try again.
C) Make sure the CD-ROM cable is properly connected to the CD-ROM port of I/O panel
and the CD-ROM drive. This must be done with the system power off.
D) Check that the 44pin cable is properly connected between 9000PB0270 secondary I/O
board CN1and mainboard J9.
E) The CD-ROM could be defective.
F) The 9000PB0270 secondary I/O board could be defective.
G) The on board IDE1 Port could be defective.
LAN is not Functioning Properly
A) Check if the LAN driver is installed properly. (Please refer to the LAN driver installation).
B) Check if there are any IRQ conflicts.
C) Check if the RJ45 twisted pair cable is properly connected.
D) Check if the 60pin I/O bus cable is properly connected.
E) The 9000PB0560 primary I/O board could be defective.
F) The on board LAN chip could be defective.
COM1, COM2 and LPT1 are not Functioning Properly
A) Check if the I/O ports are enabled in the CMOS setup.
B) Check if there are any IRQ conflicts.
C) Check if the 60pin I/O bus cable is properly connected.
D) The 9000PB0560 primary I/O board could be defective.
E) The mainboard could be defective.
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