TM 11-6625-3145-14
Operating Instructions-318/338 Service
When the field is set to I/O or ERROR, the prompt message START TO ADVANCE appears at the bottom of the screen.
If START is pressed during LOOP tests, the current loop of tests stops and the next loop of tests is started. You can
change fields during tests.
Use this feature for catching intermittent faults or for circuit tracing with an oscilloscope.
4 DISP (display) - This field may be set to ON or OFF. When the field is set to ON, test results appear within the status
area on the screen. When the field is set to OFF, no test results appear. You can change fields during tests.
5 DISPLAY AREA FOR RESULTS - This area is used to display test results. You cannot move the cursor into the area
between the dotted lines. If the DISP field is set to OFF, no test results will appear here other than results of the I/O LOOP
test.
6 PROMPT MESSAGES - Press START to begin and to advance tests (except for KDB test). STOP TO CANCEL TEST
will appear under tests instead of START TO BEGIN TEST. Press X to return to the Diagnostics menu for all tests except
KBD. Press STOP to cancel tests. For KBD test, press STOP to cancel test and return to the Diagnostics menu.
DIAGNOSTIC TEST DESCRIPTIONS
KBD Test. To enter the keyboard test, press 0 while in the Diagnostics menu. The screen display simulates the
keyboard. When any key is pressed, its position on the screen blinks. If the corresponding screen position does not blink,
the key is open. If a screen position blinks without a key being pressed, that key is shorted closed. Refer to the
Diagnostics menu or to the troubleshooting trees in
for details. Figure 3-6 illustrates the KBD test.
CRT Test. To enter this test, press 1 while in the Diagnostics menu. This test is for the focus check and the CRT rotation
check. First, the cross-hatch pattern appears on the screen. Press START; the display will change continuously. Refer to
the Diagnostics menu or to the trouble-shooting tree in
Figures 3-7, 3-8, 3-9, and 3-10 illustrate the CRT tests.
This key blinks when hit.
Figure 3-6. Display for KBD tests.
Figure 3-7. CRT test: first display.
3-8
Summary of Contents for 318
Page 119: ...318 VERIFICATION AND ADJUSTMENT PROCEDURES ...
Page 182: ...338 VERIFICATION AND ADJUSTMENT PROCEDURES ...
Page 253: ...318 ___________________ TROUBLESHOOTING TREES ...
Page 344: ...338 TROUBLESHOOTING TREES ...
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Page 518: ...TM 11 6625 3145 14 318 338 4434 924 338 Block Diagram ...
Page 519: ...TM 11 6625 3145 14 318 338 4434 925 318 Acquisition Module Wiring Diagram ...
Page 520: ...TM 11 6625 3145 14 318 338 4434 926 318 338 Mainframe Wiring Diagram ...
Page 521: ...TM 11 6625 3145 14 318 338 4434 926 338 Acquisition Module Wiring Diagram ...
Page 522: ...TM 11 6625 3145 14 318 338 4434 928 Figure 9 1 318 A01 Input A Board Component Locations ...
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Page 544: ...TM 11 6625 3145 14 Figure 9 9 318 338 A11 Inverter Board component Locations ...
Page 546: ...TM 11 6625 3145 14 Figure 9 10 318 338 A12 Regulator Board Component Locations ...
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