S 864-006

 (2)
Remove the DO-NOT-CLOSE tags and close these circuit breakers:

 (a)  P18 Circuit Breaker Panel
 1) C107, VOICE RCDR

 S 714-007
 (3) Do this task: "Operational Test for the Voice Recorder Unit"
 TASK 23-71-11-714-008
 4.  Operational Test for the Voice Recorder Unit____________________________________________
 A. Standard Tools and Equipment
 (1)  Headphone Set
 B. References
 (1)  AMM 24-22-00/201, Manual Control
 C. Access
 (1)  Location Zone
 102 Control Cabin, Right

 D. Procedure
 S 864-008
 (1)  
Supply electrical power (AMM 24-22-00/201).

 S 484-009

 (2)  
Connect a headphone into the HEADSET or HEADPHONE jack on the voice recorder control panel (P5).

 S 714-010

 (3)  
Do the Operational Test:

 (a)  Push the TEST switch on the voice recorder control panel (P5) for a minimum of five seconds. 1) Make sure that the needle moves into the green area of the
 control panel meter.
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737-300/400/500MAINTENANCE MANUAL
 2)  Make sure that you hear a series of modulated sounds through the headphone.
 S 084-011
 (4) Remove the headphone from the control panel.
 E.  Put the Airplane Back to the Usual Condition.
 S 864-012
 (1) Remove electrical power if it is not necessary (AMM 24-22-00/201).
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 VOICE RECORDER CONTROL PANEL - REMOVAL/INSTALLATION
___________________________________________________
 1.  General_______
 A.  This procedure has three tasks:
 (1)  
Voice Recorder control panel removal.

 (2)  
Voice Recorder control panel installation.

 (3)  
Operational test for the control panel.

 B.  The control panel is installed in the pilots' overhead panel P5.
 C.  One connector makes the electrical connections at the rear of the control panel.
 TASK 23-71-12-004-001
 2.  Voice Recorder Control Panel Removal____________________________________
 A.  Access
 (1)  Location Zones
 102 Control Cabin, Right

 B.  Procedure
 S 864-002
 (1)  Open these circuit breakers and attach DO-NOT-CLOSE tags:
 (a)  P18 Circuit Breaker Panel
 1) C107, VOICE RCDR

 S 024-003
 (2)  Remove the control panel.
 TASK 23-71-12-404-004
 3.  Voice Recorder Control Panel Installation_________________________________________
 A.  References
 (1)  AIPC 23-71-12-01
 B.  Access
 (1)  Location Zones
 102 Control Cabin, Right

 C.  Procedure
 S 424-005
 (1)  Install the control panel.
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 S 864-006
 (2)  Remove the DO-NOT-CLOSE tags and close these circuit breakers:
 (a)  P18 Circuit Breaker Panel
　
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