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Toshiba T4850CT Maintenance Manual page 85

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3.14 Expansion Test
To execute the expansion test, select 11 from the DIAGNOSTIC TEST menu, press Enter
and follow the directions on the screen. The expansion test contains one subtest that tests the
T4850CT's expansion port functions. The following message appears after selecting the
expansion test.
Test slot number select (1:slot1, 2:slot2, 0:slot1&2)?
Select the test slot number of the PCMCIA slot to be tested and press Enter .
Subtest 01
PCMCIA Wraparound
NOTE: To execute this subtest, the PCMCIA wraparound card is re-
quired.
This test checks the following signal lines of the PCMCIA slot:
Address line
REG#, CE#1, CE#2 line
Data line
Speaker line
Wait line
BSY#, BVD1 line
The subtest is executed in the following order:
Sub#
01
02
03
04
05
T4850CT
Address
Good
00001
nn
00001
nn
00002
ww
00003
––
00004
40, 80
00005
nn
Bad
Contents
xx
Address line
xx
REG#, CE#1, CE#2
nn=A0, 90, 80, 00
rr
Data line
ww=write data, rr=read data
––
Speaker line
xx
Wait line (40<xx<80)
xx
Other lines (BSY#, BVD1)
nn=21, 00
3-33

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