Epson PX-8 Technical Manual page 207

REV.-A
(1) RAM Check
• The information message displayed in Fig. 5-11 appears.
• The RAM and V-RAM check tests are performed in succession and the follow-
ing messages are displayed when the tests are completed.
IV.!
F<
(:! lOll
C:
! ... j
E:
L:
i<
I ' . . . . 1 (3
! i
\}
r~:
(::J
!""-l c:::
! . . . ,
E: [:
J<
i:~:
r.J
f)
l\j C)
l.·:·..l ! I
Fig.5-11 RAM Check Test End Messages
(2) Buzzer Check
• The buzzer sounds for approximately three seconds.
• The buzzer further sounds at two different tones and then the following prompt is dis-
played:
Fig. 5-12 Buzzer Check Test Prompt
*
Adjust the sound level and do another check.
(3) RS-232C and Serial Interface Check
Step 1: Insert the RS-232C serial interface connector, which is connected according
to the instructions in section 5-1. (The RS-232C socket is labeled on the PX-8
case.)
Step 2: Key in "3" for the test menu (TEST PROGRAM SELECT). The RS-232C and
Serial Interface Check test will be selected. The program runs the RS-232C interfa-
ce test first, displaying the following information:
F~~:':;2:::;:2L
CHE:C!< I NG
RS232C CHECK END NAW
Fig. 5-13 RS-232 Interface Check Phase Information Messages
Step 3: The program then runs the serial interface test the display should appear as in Fig.
5-14.
HIGH SPEED SERIALING
HIGH SPEED SERIAL END NOW
! !
Fig. 5-14 Serial Interface Check Phase Information Messages
Step 4: These messages indicate the end of the test.
5-6