(v)
Close the 6C34 AOA HEAT R circuit breaker on the P6 Main Power Distribution Panel.
(w)
Push the LSK that is adjacent to <PROBE HEAT R on the GROUND TESTS MENU. 1) Make sure bit 18 of label 270 is momentarily in the one
state.
(x)
Open the 6C34 AOA HEAT R circuit breaker on the P6 Main Power Distribution Panel.
(y)
Close the 6D29 PROBE HEAT TAT R circuit breaker on the P6 Main Power Distribution Panel.
(z)
Push the LSK that is adjacent to <PROBE HEAT R on the GROUND TESTS MENU. 1) Make sure bit 16 of label 270 is momentarily in the one
state.
(aa) Open the 6D29 PROBE HEAT TAT R, 6D34 PROBE HEAT IND L, and 6D35 PROBE HEAT IND R circuit breakers on the P6 Main Power Distribution Panel.
(ab) Set the AIR DATA switch on the captain's SOURCE SELECT module to the L position. (ac) Disconnect the ARINC 429 bus reader from the C ADC front panel TEST ONLY connecter.
S 865-280
(40) Remove the DO-NOT-CLOSE tags and close these circuit breakers:
(a) P6 Main Power Distribution Panel
1) 6B17, WINDOW HEAT 1R
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2) 6B34, WINDOW HEAT 1L 3) 6E28, WINDOW HEAT PWR 2L & 3R 4) 6E29, WINDOW HEAT IND 2L & 3R 5) 6E30, WINDOW HEAT PWR 2R & 3L 6) 6E31, WINDOW HEAT IND 2R & 3L
M. Alternate SSEC Test
(1) S 485-829Connect an ARINC 429 bus reader to the L ADC front panel TEST ONLY connector.
(2) S 865-830Set the ARINC 429 bus reader to these parameters:
Octal Label: 270 SDI: 1 (Bit 10=0, Bit 9=1) Display: Engineering Units
(a) Make sure bit 26 of label 270 is in the one state.
(3) S 085-831Disconnect the ARINC 429 bus reader from the L ADC front panel TEST ONLY connector.
(4) S 485-832Connect an ARINC 429 bus reader to the R ADC front panel TEST ONLY connector.
(5) S 865-833Set the ARINC 429 bus reader to these parameters:
Octal Label: 270 SDI: 2 (Bit 10=1, Bit 9=0) Display: Engineering Units
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(a) Make sure bit 26 of label 270 is in the one state.
S 085-834
(6)
Disconnect the ARINC 429 bus reader from the R ADC front panel TEST ONLY connector.
S 725-835
(7)
Do these steps to do a test of the alternate SSEC for the
center ADC:
(a)
Set the AIR DATA switch on the first officer's SOURCE SELECT module to the C position.
(b)
Connect an ARINC 429 bus reader to the C ADC front panel TEST ONLY connector.
(c)
Set the ARINC 429 bus reader to these parameters:
Octal Label: 270 SDI: 2 (Bit 10=1, Bit 9=0) Display: Engineering Units
1) Make sure bit 26 of label 270 is in the one state.
(d)
Disconnect the ARINC 429 bus reader from the C ADC front panel TEST ONLY connector.
(e)
Set the AIR DATA switch on the first officer's SOURCE SELECT module to the R position.
N. Put the Airplane Back to Its Usual Condition
S 085-281
(1)
Remove the test equipment.
(2)
Remove electrical power if it is not necessary (Ref 24-22-00/201).
S 865-306
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MAINTENANCE MANUAL
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