TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
Table 5-4.
318 NON-ADJUSTABLE POWER SUPPLY TOLERANCES
J1 Pin Number
Voltage Limits
-12 V pin
-11.0 V to -13.0 V
+12 V pin
+11.0 V to +13.0 V
-2 V pin
-1.80 V to -2.20 V
2. Adjust CRT Circuit
Equipment Required
None
a.
Run the diagnostic program 1 CRT to generate a cross-hatch pattern. (To enter the diagnostic program,
turn on the power switch while depressing any numeric key until the display appears.)
b.
Refer to Figure 5-15. Adjust INTENSITY control R245 on the A10 CRT board to midrange.
c.
Adjust INTENSITY LIMIT (CRT BIAS) R247 on the A10 CRT board for normal intensity.
d.
Press the start key to display a horizontal line.
e.
Loosen the setting screw of L150 (yoke coil).
f.
Rotate the L150 so that the displayed white stripe is parallel to the bezel window.
g.
Tighten the setting screw of L150.
h.
Adjust MAGNET on L150 on the CRT ring to orient the display at approximately the center of the CRT.
i.
Adjust V-SIZE R015 on the A10 CRT board for vertical display size of about 2 mm less than the CRT
display.
j.
Adjust V-LINEARITY R031 on the A10 CRT board for optimum display.
Figure 5-15. 318 CRT adjustments.
5-25
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 ...
Page 517: ...TM 11 6625 3145 14 318 338 4434 923 318 Block Diagram ...
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 528: ...TM 11 6625 3145 14 Figure 9 3 318 338 A03 ACQ Control Board Component Locations ...
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Page 542: ...TM 11 6625 3145 14 Figure 9 8 318 338 A10 CRT Board Component Locations ...
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 ...
Page 551: ...TM 11 6625 3145 14 Figure 9 12 338 A01 Input A Board Component Locations ...
Page 553: ...TM 11 6625 3145 14 318 338 SERVICE ...
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Page 555: ...PIN 058584 ...