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
64
TP
MODE switch to -2.5.
78
TP
MODE switch to SELF TEST.
65
DMM
Observe a reading of -1.576 to -1.851 Vdc.
79
MCP
Connect 1W20-P1 to J12 and 1W20-P2 to J15.
Set TRACKER POWER switch to (R) 4-10 and perform (7).
80
MCP
Disconnect 1W14 from J17.
Polarities in steps [A] through [E] will be opposite.
81
MCP
Connect 1W20-Pl to J17 and 1W20-P2 to J13.
66
MTS
TRACKER POWER switch to (R) 4-10.
82
MCP
DMM INPUT switch to DMM INPUT.
67
Wait > 14 seconds before continuing.
83
MTS
Adjust HORIZ BIAS ADJ control to 0.0000 + 0.0010 Vdc.
68
DMM
Observe a reading of -0.1509 to -0.1771 Vdc.
DMM
(7) Polarities in steps [A] through [E] will be opposite.
84
TP
MODE switch to FREQ.
69
MTS
TRACKER POWER switch to (R) 1-3.
85
MCP
SELECTOR B switch to E20.
70
MCP
SELECTOR A switch to E-20.
86
PD
HORIZ/REF/VERT switch to HORIZ.
71
TP
FREQ (HZ) switch to 0.5.
87
PD
Actuate and hold READ switch.
72
Wait > 4 minutes for the oscillator to stabilize before proceeding.
88
DMM Observe a reading of +2.516 to +4.193 Vdc.
73
PD
Actuate and hold READ switch.
(8)
74
DMM
Observe a reading of +2.995 to +3.005 Vdc.
89
PD
Release READ switch.
1.
Adjust the LOW FREQ AMPTD potentiometer to
90
MCP
Disconnect the end of the cable from J15.
+3.000 + 0.005 Vdc. Wait 3 minutes after each adjustment.
91
MCP
SELECTOR A switch to C2.
2.
Perform DM1S-D Performance Test.
92
MCP
SELECTOR C switch to F7.
75
PD
Release READ switch.
93
MCP
Reconnect the cable to J15.
76
MCP
SELECTOR A switch to B12.
94
MCP
SELECTOR B switch to G23.
77
MCP
SELECTOR C switch to F8.
95
TP
MODE switch to SELF TEST.
96
MTS
Adjust VERT BIAS ADJ control to 0.0000 + 0.0010 Vdc.
DMM
97
TP
MODE switch to FREQ.
98
MCP
SELECTOR B switch to E20.
99
PD
HORIZ/REF/VERT switch to VERT.
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