TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
2. Pod-A
a. Connect the oscilloscope channel 1 probe lead to TP110 on the A01 INPUT-A board.
b. Press the START key.
c. Turn POD A Threshold DC BALANCE R308 on the A02 INPUT-B board to the counter-clockwise end.
d. Turn R308 clockwise slowly while observing the oscilloscope waveform and mark the point where the waveform
moves from stationary low level to stationary high level.
e. Turn R308 to the clockwise end.
f. Turn R308 counterclockwise slowly while observing the oscilloscope waveform and mark the point where the
waveform moves from stationary-high level to stationary-low level.
g. Adjust R308 to the center position between the points marked by procedures (d) and (f).
h. Press the STOP key.
3. Pod-B
a. Connect the oscilloscope channel 1 probe lead to TP208 on the A02 INPUT-B board.
b. Press the START key.
c. Turn POD B Threshold DC BALANCE R302 on the A02 INPUT-B board to the counter-clockwise end.
d. Turn R302 clockwise slowly while observing the oscilloscope waveform and mark the point where the waveform
moves from stationary-low level to stationary-high level.
e. Turn R302 to the clockwise end.
f. Turn R302 counterclockwise slowly while observing the oscilloscope waveform and mark the point where the
waveform moves from stationary-high level to stationary-low level.
g. Adjust R302 to the center position between the points marked in procedures (d) and (f).
h. Press the STOP key.
4434-587
Figure 5-17. 318 Threshold voltage adjustments on the INPUT-B board (A02).
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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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