8 — Testing
8–8
CX20/CX30/CX34 Service Manual
8.3.3
ROM test (menu option)
A value is generated and printed for each of the three ROMs in unit: two main
EPROMs (A+B and C+D) and one PROMX. These values should be compared
with values labelled on ROMs at manufacture. Values must not have altered.
What You Do
What You See
1
Select function.
ROM TEST
2
Press ENTER. Runs through the test.
A ’ROM TEST’ report is printed
simultaneously.
TESTING . . . . . . . . .
4A43
0
TESTING . . . . .
1
3
When test is complete, either:
ROM TEST
or:
ROM FAIL
Содержание CX20 SERIES
Страница 133: ...11 Main PCB 11 4 CX20 CX30 CX34 Service Manual Figure 11 1 Main PCB Electrical Connections See Tables 11 1 and 11 2 ...
Страница 137: ...11 Main PCB 11 8 CX20 CX30 CX34 Service Manual Figure 11 2 Main PCB DIL Switches and Potentiometers ...
Страница 246: ...25 Appendices 25 9 CX20 CX30 CX34 Service Manual 1 Voids printed on receipt 2 Voids not printed on receipt ...
Страница 258: ...PL 1 CX20 CX30 CX34 Service Manual Section PL Parts List ...
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Страница 317: ...Addendum A Phase 1 4 and CX34 Parts List A 30 CX20 CX30 CX34 Addendum A ...
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Страница 323: ...Contents B 2 Addendum B ...
Страница 343: ...Addendum B Phase 1 5 1 5 3 and New Main PCB B 22 Addendum B ...
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Страница 351: ...PL Parts List Devlin Keyboard C 6 Addendum C ...
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