Loss of the CFDIU Input Bus on the ADF 2

TASK 34-53-00-810-814-A
Loss of the CFDIU Input Bus on the ADF 2

1. Possible Causes

RECEIVER-ADF, 2 [2RP2]
wiring of the MAINTENANCE DATA INPUT bus from the ADF receiver 2 (2RP2) to the first terminal block

2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
AMM 34-53-00-740-003	BITE Test of the ADF
ASM 345301
AMM 34-53-31-000-002	Removal of the ADF Receiver
AMM 34-53-31-400-002	Installation of the ADF Receiver

3. Fault Confirmation
Subtask 34-53-00-740-076-A ** ON A/C NOT FOR ALL

A. Test
(1) Do the BITE test of the ADF AMM 34-53-00-740-003.

4. Fault Isolation
Subtask 34-53-00-810-065-A ** ON A/C NOT FOR ALL

A. If the test gives the maintenance message ADF2 : NO DATA FROM CFDIU:

(1) If the fault continues:

do a check and repair the wiring of the MAINTENANCE DATA INPUT bus from the ADF receiver 2 (2RP2) to the first terminal block ASM 345301.

Subtask 34-53-00-740-077-A ** ON A/C NOT FOR ALL

B. Do the test given in Para. 3.

[Rev.8 from Aug 2018] 2026.04.04 04:33:27 UTC