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conditioner to navigate through its BITE menus. You can see or
erase fault data and in-flight vibration data. You also use the
BITE to make the AVM signal conditioner calculate an engine
balance solution. See the training information point pages in
this section for more information about the BITE.
GUN 111-114
You can also get data or erase data with a data bus analyzer.
See the section on the AVM signal conditioner for more
information.
GUN ALL
The program pins identify the engine model and the customer
options.
The signal conditioner gets electrical power from the 115v ac
transfer bus 2. An internal power supply changes the input to
24v dc.
AVM SYSTEM - FUNCTIONAL DESCRIPTION
EFFECTIVITY
GUN ALL 77-31-00
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AVM SYSTEM - FUNCTIONAL DESCRIPTION
AVM SYSTEM - FUNCTIONAL DESCRIPTION
EFFECTIVITY
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AVM SYSTEM - FUNCTIONAL DESCRIPTION
AVM SYSTEM - FUNCTIONAL DESCRIPTION
EFFECTIVITY
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AVM SYSTEM - FUNCTIONAL DESCRIPTION
AVM SYSTEM - FUNCTIONAL DESCRIPTION
EFFECTIVITY
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AVM SYSTEM - FUNCTIONAL DESCRIPTION
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CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
General
The AVM signal conditioner has a front panel LED display and
four BITE switches. You use the BITE switches for navigation
through the BITE menus.
GUN 111-113
The display is normally off. The display comes on when you
push any of the BITE switches and power is available. The
display goes blank again in 15 minutes if you do not push any
BITE switches.
GUN 001-099, 101-110, 115, 201-999
The LED display is normally off. The display comes on when
you push any of the four BITE switches and both engines are off.
The display goes blank if one of these happens:
* No action on the push-buttons for 5 minutes
* One or both engines start
* YES switch is pushed at the TURN OFF DISPLAY? menu.
The BITE main menu has these five items:
* SELF TEST?
* FAULT HISTORY?
* FLIGHT HISTORY?
* BALANCE?
* TURN OFF DISPLAY?.
GUN 111-113
The BITE has a main menu with these four items:
* SELF TEST?
* FAULT HISTORY?
* FLIGHT HISTORY?
* BALANCE?.
The SELF TEST menu item shows when the display first comes
on. Push the NO switch to go to the next menu item. Use the YES
switch to enter the menu item. The BITE switches with the up
arrow and down arrow are inactive at this level of the BITE
menu.
GUN 001-099, 101-110, 115, 201-999
The SELF TEST menu shows when the display first comes on.
When you push the YES push-button, the self-test starts. When
you push the NO switch, the next menu item shows. The BITE
switches with the up arrow and down arrow are inactive at this
level of the BITE menu. At the last menu, push the NO switch to
return the display to the first menu.
GUN 001-099, 101-113, 115, 201-999
Always follow the fault isolation manual (FIM) procedure and
any necessary AMM procedures when you do AVM BITE.
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - MAIN MENU - TRAINING INFORMATION POINT
EFFECTIVITY
GUN 001-099, 101-113, 115, 201-999 77-31-00
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SELF TEST?
The SELF TEST? menu selection causes the AVM signal
conditioner to do an internal self test. See the SELF TEST - TIP
page that follows in this section for more information on this
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