TM9-4935-481-14-1
C3
Table 3-18. MTS Performance Test-Continued
Table 3-18. MTS Performance Test-Continued
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
7
PP
MAIN POWER and DMS switches to ON. Momentarily actuate the TEST
20
DMM
Observe a reading of -12.00 to -14.00 Vdc.
TP
Troubleshoot as per schematics in TM 9-6920-483-34-1.
START switch.
Replace BCR or BT3 or BT4 if required.
8
BCR
INTERNAL switch to ON.
21
MCP
SELECTOR A switch to D3.
9
MCP
SELECTOR A switch to D3.
22
DMM
Observe a reading of +12.00 to +14.00 Vdc.
10
DMM
Observe a reading of +12.00 to +14.00 Vdc.
Troubleshoot as per schematics in TM 9-6920-483-34-1l
Replace BCR or BT1 or BT2 if required.
Troubleshoot as per schematics in TM 9-6920-483-34-1.
Replace BCR or BT1 or BT2 if required.
23
BCR
EXTERNAL switch to AC.
11
BCR
INTERNAL switch OFF.
24
MTS
Actuate and hold LIGHTS TEST switch.
12
DMM
When the DMM stabilizes, observe a reading of 0.000 + 0.1000 Vdc.
25
MTS
Observe all front panel lamps illuminated.
Replace lamps.
Check BCR-S-3
(2)
13
BCR
INTERNAL switch to ON.
26
MTS
Release LIGHTS TEST switch.
14
MCP
SELECTOR A switch to D1.
27
MTS
TARGET RANGE switch to 1.
15
DMM
Observe a reading of -12.00 to -14.00 Vdc.
28
MTS
TRACKER BIAS switch to MANUAL.
Troubleshoot as per schematics in TM 9-6920-483-34-1.
Replace BCR or BT3 or BT4 if required.
29
TP
MODE switch to L/R MVG.
16
BCR
INTERNAL switch to OFF.
30
MCP
SELECTOR A switch to I-23.
17
DMM
When the DMM stabilizes, observe a reading of 0.000 + 0.1000 Vdc.
31
MCP
SELECTOR B switch to B9.
Check BCR-S-3.
32
MTS
TRACKER POWER switch to (R) 1-3.
18
BCR
INTERNAL switch to ON.
33
MTS
Adjust VERT BIAS ADJ control fully cw.
19
BCR
EXTERNAL switch to OFF.
34
DMM
Observe a reading of -5.766 to -6.634 Vdc.
(3)
3-278
