Canon mf6600 Series Service Manual page 221

The flow of operation panel testing is shown below.
6 - 7 : O p e ra t i o n Pa n e l
Press the start key
LCD test
H H H H H H H H H H H H H H H H H H H H
H H H H H H H H H H H H H H H H H H H H
Press the start key
Press the start key
LED lamp test
Press the start key
Operation key test (1)
0 1 2 3 4 5 6 7 8 9 *# A B C D E F G H
I L M N OP R S U
Operation key test (2)
0 3 4 5 8
A B C D E FGH
The test is finished when the stop key
is pressed after deleting all characters
8
Service Mode > Test Mode (Test) > Faculty Test > Function Test <(6) FUNCTION TEST>
All H characters are displayed
All black dots are displayed
All LED dots are displayed
A character disappears when
the corresponding key is pressed
A character disappears when the
corresponding one-touch dial key is pressed.
F-8-14 F-8-14
8 Service Mode > Test Mode (Test) > Faculty Test > Function Test <(6) FUNCTION TEST>
Lamp test (6-8: LAMP TEST)
Press numeric keypad key 8 on the FACULTY menu to select the scan lamp illumination
mode. The test checks to see if the scan lamp is on or not.
Numeric keypad key 1 selects LAMP TEST ALL. Press the start key to turn on all scan
lamps. LAMP TEST AGC is not used.
Line signal reception test (9: LINE DETECT)
Press numeric keypad key 9 on the FACULTY menu to select the line signal reception test.
In this test, verify the successful operations of the NCU signal sensor and the frequency
counter. Menu 1 detects the CI state, while menu 3 detects the CNG signal.
Test menu 1
Press numeric keypad key 1 on the LINE DETECT menu to select test menu 1. When
CI is detected on the telephone line connection terminal, the LCD display changes
from OFF to ON, indicating the received frequency. The LCD also displays the on-
hook or off-hook state of an external telephone set as detected. The LCD displays,
from left to right, CI, CI frequency, hook port and FC with indications of 1:ON and 0:
OFF.
Test menu 2
Press numeric keypad key 2 on the LINE DETECT menu to select test menu 2. When
the CNG signal is detected on the telephone line connection terminal, the LCD display
changes from OFF to ON, indicating the received frequency. The LCD displays the
status of CML, CNG and FED detection, from left to right, with ON/OFF indications.
Numeric keypad key 2 turns on the CML relay to detect CNG.
Test menu 3
Press numeric keypad key 3 on the LINE DETECT menu to select test menu 3. When
the CNG signal is detected on the telephone line connection terminal, the LCD display
changes from OFF to ON, indicating the received frequency. The LCD displays the
status of CML, CNG and FED detection, from left to right, with ON/OFF indications.
Numeric keypad key 3 turns off the CML relay to detect CNG.
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