- do a check for continuity at the RELAY-PARKING BRK CTLD (14RK) (between pins A and 2, pins B and 4) with the RCDR/CVR TEST pushbutton switch (5RK) pushed (Ref. ASM 23-71/02)

 (1) If there is no continuity on a relay:

 - replace the defective relay.

 (2) If there is no continuity on all the relays:

 - do a check for continuity at the P/B SW-RCDR/CVR TEST (5RK) (between pins 1 and 2) with the RCDR/CVR TEST pushbutton switch (5RK) pushed (Ref. ASM 23-71/01).
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞23-71-00∞∞∞∞∞∞∞∞∞∞Page 201
 Feb 01/98 CES

 (a) If there is no continuity:

 - replace the RCDR/CVR TEST pushbutton switch (5RK).

 (b) If there is continuity:

 - do a check and repair the wiring of the RCDR/CVR TEST pushbutton switch (5RK) and of relay (20RK) pins X and Z (Ref. ASM 23-71/01).
 (3) If there is continuity on all the relays:
 - do a check and repair the wiring on the relays (20RK) and (14RK) (Ref. ASM 23-71/02).
 B. Do the test given in Para. 3.

 TASK 23-71-00-810-802 Failure of the Audio Feedback on the CVR Headset Jack
 1. Possible Causes
_______________
 - JACK-CVR/HEAD SET (22RK)

 - wiring from the jack (22RK) to the first terminal block

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM  23-71-00-710-001 Operational Test of the CVR and the CVR Channel Recording ASM 23-71/01
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the CVR and the CVR channel recording (Ref. AMM TASK 23-71-00-710-001).
 4. Fault Isolation
_______________
 A. If during the operational test the CVR headset jack is inoperative:
 - replace the JACK-CVR/HEAD SET (22RK) on the panel 50vu.
 (1) If the fault continues:
 - do a check and repair the wiring from the jack (22RK) to the first terminal block (Ref. ASM 23-71/01).
 B. Do the test given in Para. 3.

 TASK 23-71-00-810-803

 Recording on One or All Channels Inoperative (Operative on the CVR MIC Channel
 Only)
 1. Possible Causes
_______________
 - CVR (1RK)

 - AMU (1RN)

 - wiring from the CVR (1RK) to the AMU (1RN)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
AMM 23-51-34-000-001 Removal of the Audio Management Unit (AMU) (1RN) AMM 23-51-34-400-001 Installation of the Audio Management Unit (AMU) (1RN) AMM 23-71-00-710-001 Operational Test of the CVR and the CVR Channel
 Recording AMM 23-71-35-000-001 Removal of the Cockpit Voice Recorder (CVR) 1RK AMM 23-71-35-400-001 Installation of the Cockpit Voice Recorder (CVR) 1RK ASM 23-71/02
 3. Fault Confirmation
__________________
 A. Test
 (1) Do the operational test of the CVR and the CVR channel recording (Ref. AMM TASK 23-71-00-710-001).
 4. Fault Isolation
_______________
 A. If during the operational test the recording is inoperative:
 - replace the CVR (1RK) (Ref. AMM TASK 23-71-35-000-001) and (Ref. AMM TASK 23-71-35-400-001).
 (1) If the fault continues:

 - replace the AMU (1RN) (Ref. AMM TASK 23-51-34-000-001) and (Ref. AMM TASK 23-51-34-400-001).

 (2) If the fault continues:

 - do a check and repair the wiring from the CVR (1RK) to the AMU (1RN) (Ref. ASM 23-71/02).
 B. Do the test given in Para. 3.
 「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞23-71-00∞∞∞∞∞∞∞∞∞∞Page 204
 Feb 01/98 CES

 TASK 23-71-00-810-804

 Cockpit Voice Recording Inoperative
 1. Possible Causes
_______________
 - CVR (1RK)

 - AMPLIFIER-CVR MIC (18RK)

 - MIC-CVR (16RK)

 - wiring

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
　
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