TM 9-4935-481-14-1
Table 3-14. TTS Performance Test-Continued
Table 3-14. TTS Performance Test-Continued
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
14 Volt Regulator Test
75
PPE
Momentarily actuate TEST START switch and observe TESTING, GO
56
PPE
FUNCTION TEST switch to +14V REG.
TTS
57
PPE
Momentarily actuate TEST START switch (power on).
and NO-GO lamps extinguish in = 7 seconds.
58
MCP
SELECTOR A switch to A3o
59
DMM
Observe a reading of +11.70 to +14.30 Vdco
Replace card 1A2. Check 1A2 pins
(9)
3, 2 and 4.
60
MCP
SELECTOR A switch to A4.
61
DMM
Observe a reading of -11.70 to -14.30 Vdc.
76
PPE
FUNCTION TEST switch to +14 V REG.
(10)
62
MCP
SELECTOR A switch to A80
63
DMM
Observe a reading of +4.750 to +5.250 Vdc.
Counter
(11)
77
MCP
SELECTOR B switch to E9.
64
PPE
Momentarily actuate TEST START switch (power off).
78
CT
Momentarily depress RESET pushbutton.
65
TTS
Observe TESTING lamp extinguished.
79
PPE
Momentarily actuate TEST START switch (power on).
66
CIP
RUN/HOLD/OFF switch to OFF.
80
TTS
Observe TESTING lamp extinguishes when counter reading occurs.
67
PPE
Momentarily actuate TEST START switch (power on).
68
TTS
Observe TESTING, GO, and NO-GO lamps illuminated.
Replace card 1A3. Check 1A3
(12)
pins 33 and 23.
69
PPE
Momentarily actuate TEST START switch (power off).
81
CT
Observe a reading of 60,000 + 60 msec.
70
PPE
FUNCTION TEST switch to +5V CRBR.
71
PPE
Momentarily actuate TEST START switch and observe TESTING, GO
Replace card 1A4. Check 1A4 pins
TTS
25 and 26.
and NO-GO lamps extinguish in - 7 seconds.
82
MCP
SELECTOR B switch to I22.
Replace card 1A2. Check 1A2
83
CT
FUNCTION switch to FREQ. A.
pins 3 and 10.
84
CT
FREQ/TIME/MULT switch to 106.
85
CT
DISPLAY control to mid-range.
86
CIP
COUNTER INHIBIT (SEC) dial to 20.00
87
CIP
RUN/HOLD/OFF switch to RUN.
88
MCP
Connect the 10215396 cable to J13.
89
TTS
Connect the white probe of 10215396 to 1A4A2-J1 and the black
probe to 1A4A2-J2.
3-220
