Brother MFC990CW Service Manual page 149

Inljet mfc/dcp
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Error Code
Symptom
(Hex)
EB
Not used.
EC
LCD connection
detection failure.
ED
Touch panel initialization
failure at the time of
power ON.
EE
Bluetooth PCB
connection failure
EF-F6
Not used.
F7
Media module detection
*4
failure.
F8
Battery harness
connection failure.
(Available in the
maintenance mode only)
F9-FF
Not used.
*1 Phase B: FAX negotiation stage between sending machine and receiving machine
*2 For models with touch panel
*3 For Bluetooth support models
*4 For models with PhotoCapture Center
*5 For models with backup battery
Probable Cause
LCD flat cable not connected
correctly
LCD unit defective
Main PCB defective
Touch panel in contact with
something during
*2
initialization at the time of
power ON.
Touch panel defective
Touch panel PCB defective
Main PCB defective
Bluetooth PCB not connected
*3
.
correctly
Bluetooth PCB defective
Main PCB defective
*5
Battery harness not connected
correctly
4-24
Solution
Correct the connection.
Replace the LCD unit.
Replace the main PCB.
Clean the touch panel, then turn
the machine off and then on
again.
Replace the LCD unit.
Replace the main PCB.
Connect the Bluetooth PCB
correctly.
Replace the Bluetooth PCB.
Replace the main PCB.
Correct the connection.
Confidential

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