T33881
EFFECTIVITY CONFIG 3 AF 121,122,155-171,174-190,
799 Page 104 195-199; VM ALL
34-31-00
 Sep 25/94
OK

T33886
EFFECTIVITY
CONFIG 3 AF 121,122,155-171,174-190,
799 Page 105 195-199; VM ALL
Sep 25/94

34-31-00

OK - Replace VOR/ILS receiver (AMM 34-31-02) and perform specified test.
NOT OK - Replace captain's
instrument displaying faulty
response (RMI, AMM 34-21-06;
ADI, AMM 34-41-05;
HSI, 34-41-06) and perform
specified test.

VOR/ILS AUDIO FAULTY - Replace applicable VOR/ILS recei-
NOT OK
ver (AMM 34-31-02) and perform specified test. If VOR/ ILS audio is still faulty, troubleshoot flight interphone system (AMM 23-51-00).
VOR AUDIO RECEPTION WEAK - Troubleshoot VOR antenna
NOT OK
circuits for systems 1 and 2 per PROCEDURE 1 and system 3 per PROCEDURE 2.
OK
SYSTEM IS OK - If localizer rf reception is questioned, troubleshoot localizer antenna circuits per PROCEDURE 3. If glide slope rf reception is questioned, perform glide slope antenna system troubleshooting per AMM 34-31-12.
T33890
EFFECTIVITY
CONFIG 3 AF 121,122,155-171,174-190,
799 Page 106 195-199; VM ALL
34-31-00
 Sep 25/94
PROCEDURE 1

specified test. panel (AMM 34-31-01) and perform (AMM 22-11-06) and/or VHF NAV control box No. 2 (AMM 22-11-03), AP/FD MSP NOT OK - Replace autopilot accessory 

all three systems, check VOR antenna NOT OK - Audio reception is weak for and associated coaxial cables (AMM 34-00-00/201). Repair or replace coaxial cables as required and/or replace VOR antenna (AMM 34-31-03) and perform specified test. 

OK - VOR antenna system is operable.

____Refer to Wiring Diagram Manual for wiring details.
NOTE:
EFFECTIVITY
CONFIG 3 AF 121,122,155-171,174-190,
799 Page 107 195-199; VM ALL

34-31-00
 Sep 25/94
 T33896
PROCEDURE 2

NOTE:Refer to Wiring Diagram Manual for wiring details.

T33902
EFFECTIVITY
 CONFIG 3 AF 121,122,155-171,174-190,
799 Page 108 195-199; VM ALL

34-31-00
 Sep 25/94
PROCEDURE 3

____Refer to Wiring Diagram Manual for wiring details.
NOTE:
EFFECTIVITY
CONFIG 3 AF 121,122,155-171,174-190,
799 Page 109 195-199; VM ALL

34-31-00
 Sep 25/94
T33906
 VOR/ILS NAVIGATION SYSTEM - ADJUSTMENT/TEST
___________________________________________
 1.  General
_______
 A.  The VOR/ILS navigation system adjustment/test consists of three procedures, an operational test (paragraph 4), a system test (paragraph 5), and a partial test (paragraph 6). The operational test gives a confidence test of the system utilizing on-board equipment only. The system test is predicated on successful completion of the operational test and cannot be performed alone. The partial test should be used only to determine a GO-NO-GO condition of the system. The system test and partial test also encompass other subsystems having interface with the VOR/ILS navigation system. The Prepare to Test VOR/ILS Navigation System procedures in paragraph 3 must be performed prior to performing the operational test, the system test, or the partial test.
 B.  The VOR/ILS navigation systems may be tested separately or concurrently using any of the procedures. The procedure using the 972Q-4 or the T30A/B ramp test set may be performed with the signal generators inside the airplane except for the localizer antenna test. The localizer antenna test must be performed with the test set outside the airplane to assure that the localizer antenna cabling is connected. All procedures may also be performed with the signal generators outside the airplane operating in the radiating mode.
 2.  Referenced Procedures
_____________________
 A.  23-51-00, Adjustment/Test
 B.  24-22-00, Maintenance Practices (Apply Power)
 C.  34-21-00, Adjustment/Test (Operational Test)
 3.  Prepare to Test VOR/ILS Navigation System
_________________________________________
 A.  Place STANDBY POWER switch (panel P4) to NORMAL or OFF position.
 B.  Check that STANDBY IGNITION switch (panel P5) is in NORM position.
 C.  Provide electrical power to system (Ref 24-22-00).
 CAUTION: EQUIPMENT COOLING MUST BE PROVIDED TO PREVENT DAMAGE TO
_______ ELECTRONIC EQUIPMENT. PROVIDE NORMAL COOLING PER 21-58-00.
 D.  Check that following circuit breakers on overhead circuit breaker panel P7 are closed: On LH 001-010; AF 101-120, 123-151; SN 301-350 and IB 405, VOR 1 DC, VOR 2 DC, GS 1, GS 2, VOR 1 AC, VOR 2 AC, HDG SYNC EXCIT 1, 2, and 3, ALT RMI 1, ALT RMI 2, ATT ADI 1, ATT ADI 2, HSI 1, HSI 2, MHRS 1, MHRS 2, RMI 1, RMI 2 and CAPT and F/O FLT INST SW RELAYS. Verify that panel and dial lights are on. On LH 011-099; AF 152-156, 158-160, 162-182, 185-199; AZ ALL; GN ALL; MD ALL and VM ALL, VOR 1 DC, VOR 2 DC, GS 1, GS 2, VOR 1 AC, VOR 2 AC, HDG SYNC EXCIT 1, 2, and 3, ATT ADI 1, ATT ADI 2, HSI 1, HSI 2, MHRS 1, MHRS 2, ADF RMI 1, ADF RMI 2, ALT ADF RMI 1, ALT ADF RMI 2, VOR RMI 1, VOR RMI 2, ALT VOR RMI 1, ALT VOR RMI 2, and CAPT and F/O FLT INST SW RELAYS. Verify that panel and dial lights are on. On AF 121, 122, 157, 161, 183, 184;
　
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