Acorn FileStore E01, Service Manual

Page: 119 / 164

Appendix A Test Equipment
FileStore Service Manual 111
FServTest
Select ‗T‘ from FServMenu. This invokes FServTest, the FileStore main board test program
and displays the following menu:
Test main board
C Continuous read/write of FileStore memory
E Econet test
F Floppy disc controller test
H Help, print this menu
M Memory test
N Non—volatile RAM test
O Optical door sensor test
P Printer test
Q Quit this program
R Read FileStore memory
S SCSI interface test
T Real-time clock test
W Write FileStore memory
X Econet test with external clock
Using the options from the above menu, you can test many of the features of the E01 or E01S
main circuit board including:

the RAM (‗C‘, ‗M‘, ‗R‘, ‗W‘)

the non-volatile (CMOS) RAM (‗N‘)

the Econet connection (‗E‘, ‗X‘)

the floppy disc controller (‗F‘)

the real-time clock (‗T‘)

the optical door sensor (‗O‘)

the printer (‗P‘)

the SCSI interface (‗S‘)
Some of these tests generate a waveform, which can be checked with an oscilloscope. The
tests and the resulting waveform produced for an E01 or E01S unit are detailed below:
FileStore E01

Printer test - the printer port pin corresponding to the bit number that was selected should
show a show a square wave. All other pins should flat signals.

SCSI interface - read data (‗R‘): pin 1 of IC3 should be as shown in Fig 10 (and not stuck
either high or low).

SCSI interface - write data (‗W‘): pin 11 of IC2 should be as shown in Fig 10 (and not
stuck either high or low).

SCSI interface - read status (‗?‗): pin 1 of IC4 should be as seen in Fig 10 (and not stuck
either high or low).

SCSI interface - write select (‗S‘): pin 11 of IC10 should be as seen in Fig 10 (and not
stuck either high or low).

SCSI interface - write IRQ enable 0 (‗0‘): pin 11 of IC10 should be as seen in Fig 10 (and
not stuck either high or low). Pin 9 of IC10 should be logic 0.