TM9-4935-481-14-1
C3
Table 3-14. TTS Performance Test-Continued
Table 3-14. TTS Performance Test-Continued
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
751
MCP
Connect 1W14 cable to J17.
766
DMM
Observe a reading of -0.5858 to -0.8100 Vdc.
752
MCP
DMM INPUT switch to DMM INPUT.
Replace card 1A9. Check 1A9 pins
753
TTS
Connect the DTIM pos probe to 1A11-J12.
12, 16, 28, and 32.
754
DMM
Observe a reading of +7.790 to +8.610 Vdc.
767
TTS
CHARGE switch to ON.
(56)
768
DMM
Observe and record the reading for use in step 769.
755
TTS
Remove the probe from 1A11-J12.
769
Subtract the reading recorded in step 768 from the absolute value
756
MCP
Connect a jumper wire between OVERVOLT STIMULI jack J1 and
of step 766. Verify a difference of 0.2633 to 0.3798.
TTS
Replace card 1A9. Check 1A9 pins
1A11-J12.
12, 14 and 16.
757
MCP
DMM INPUT switch to SEL A.
770
TTS
Momentarily actuate TEST START/STOP pushbutton (power off).
758
PPE
FUNCTION TEST switch to OVERVOLT.
771
TTS
Wait until FULL CHARGE lamp illuminates before continuing.
759
DMM
Observe a reading of < +0.1670 Vdc.
772
DMM
Observe a reading of +0.725 to +0.929 Vdc.
(56)
Replace card 1A11. Check 1A11 pins
760
MCP
Remove the wire connected in step 756 above.
22 and 23o
TTS
773
PPE
FUNCTION TEST switch to +24 V REG.
CAUTION
774
MCP
SELECTOR A switch to Fl,
Do not actuate the DIMS-D PPE TEST START switch while TTS
775
MCP
SELECTOR B switch to H22.
POWER switch is ON.
776
MCP
SELECTOR C switch to E18.
761
TTS
POWER switch to ON.
777
MCP
DMM LO switch to SYS GND.
762
TTS
Momentarily actuate TEST START/STOP pushbutton. Wait > 7 seconds
778
MCP
Adjust COMPARATOR THRESHOLD B control to +2.500 + 0.0100 Vdc.
and then momentarily actuate it again. (This resets the
DMM
battery charger overvoltage circuit.)
779
MCP
SELECTOR A switch to F2.
763
CIP
RUN/HOLD/OFF switch to RUN.
780
MCP
Adjust COMPARATOR THRESHOLD C control to +6.000 + 0.010 Vdc.
764
TTS
Momentarily actuate TEST START/STOP pushbutton (power on).
DMH
765
TTS
CHARGE switch to OFF.
781
MCP
DMM LO switch to 5.
3-242