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TM 11-6625-3145-14
Verification and Adjustment Procedures-318/338 Service
SERIAL STATE ANALYZER
9. Adjust the Threshold Voltages on the A07 Board (318S1 Instruments Only)
Equipment Required
1.
Digital Multimeter (DMM)
Refer to Figures 5-23 and 5-24
a. Set MODE to SER (any menu).
b. Select the Threshold menu and set V1 = 0.0 V and V2 = 0.0 V.
c. Connect the DMM minus (-) lead to TP200 (GND) on the A07 board.
d. Connect the DMM plus (+) lead to TP11 (Threshold) on the A07 board.
e. Set INPUT DATA = V1.
f. Press the START key.
g. Record the voltage and label it V0 (V0 will be used as a reference later).
h. Connect the P6107 Serial Data probe tip to TP200 on the A07 board.
i. Move the DMM plus (+) lead to TP10 on the A07 board.
j. Adjust R23 DC BALANCE on the A07 board for a DMM indication of V0
±
0.001 V (the voltage measured in step
(7)
±
0.001 V).
k. Press the STOP key.
I. Set INPUT DATA = V2.
m.
Press the START key.
n. Check that the DMM indication is V0
±
0.001 V.
o. Press the STOP key.
p. Set INPUT DATA = V3.
q. Press the START key.
r. Check that the DMM indication is V0
±
0.001 V.
s. Press the STOP key.
Figure 5-23. 318 Serial Analysis/RS-232C/NVM test point and adjustment locations
5-39
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 ...