TM 11-6625-3081-23
7-26. ANALOG-TO-DIGITAL (A/D) CONVERTER 2A2A13
7-26
INPUT CODE: ADST (cont)
2. CORRECTIVE ACTION - SEGMENT 3 (cont)
(g) Check the following cable assemblies and repair as required:
Test cable 13082730
2A2W8
2A2W9
2A2W11
2A2W25
2A2W27
If any cable was repaired, perform ADST test. If ADST test passes, no
further action required.
If ADST test fails, repair is beyond this
level of maintenance.
Next higher level of maintenance required.
If no cables were repaired, repair is beyond this level of maintenance.
Next higher level of maintenance required.
If another segment displayed, proceed to that segment and continue
troubleshooting.
f . S E G M E N T 4
1. VDT DISPLAY
7-130
A/D CONVERTER SAMPLE & HOLD FAILED.
PERFORM THE FOLLOWING REPLACE ACTIONS
IN THE ORDER LISTED.
(REFERENCE TM 11-6625-3081-23 FOR REPLACEMENT
PROCEDURES.)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
REF. DES.
2A2A13XX
2A2A1O
2A2A13XX
2A2A13XX
2A2A13XX
2A2A13XX
2A2A13XX
2A2A13XX
2A2A13XX
2A2A13XX
2A2A13
PART NO.
AC280
13081925-19
AC80162D
AC262
13082276-2
13082276-3
AC471-1B
AC4060
AC4060
AC333-1 & 2
13081746
NAME
SAMPLE & HOLD CCA (J1)
MATRIX SWITCH
16-BIT A/D CCA (J74)
SIGNAL PROCESSOR CCA (J73)
CCA (J75)
CCA (J76)
CCA (J77)
CCA (J5)
CCA (J6)
CCA’s (J17 & J18)
A/D CONVERTER
Change 6
