Canon MultiPASS C755 Service Manual - Page 120

b Operation panel tests, b-1 Display test, Start, b-2 LED lamp test, b-3 Operation button test,

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Page 120 highlights

MultiPASS C755 Chapter 3: Maintenance & Service b) Operation panel tests The operation panel test is selected by pressing the 7 button from the faculty test menu. In this test, check that the display, LED lamps, and buttons on the control panel are operating correctly. b-1) Display test Pressing the Start button from the control panel menu, "H" is displayed 16 characters by 1 line on the display. The next time the Start button is pressed, all the LCD dots on the display are displayed. Check for any LCD dots in the display that are not displayed. b-2) LED lamp test The LED lamp test is selected by pressing the Start button after the display test. When the Start button is pressed, all the lamps on the control panel light. Check for any LED that does not light during the test. b-3) Operation button test The Operation button test is selected by pressing the Start button after the LED lamp test. In this test, you press the button corresponding to the displayed character to put it out. The table giving the correspondence between the characters and the buttons is below. Character 1-# R D L $ & C O F E M Operation button Numeric buttons Redial/Pause button Coded dial button Color/B&W button Resolution button Receive Mode button Copy button Hook button Function button Set button Resume button When all the characters displayed have gone out, the system next starts the one-touch speed dialing button test. The letters a-l are displayed on the display, corresponding to one-touch speed dialing buttons 01-12. Each letter displayed on the display goes out when its corresponding one-touch speed dialing button is pressed. In this test, check for operation buttons whose corresponding character or letter does not go out when the button is pressed. (See page 3-30 The buttons do not work.) 3-69

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MultiPASS C755
Chapter 3: Maintenance & Service
b) Operation panel tests
The operation panel test is selected by pressing the
7
button from the faculty test menu.
In this test,
check that the display, LED lamps, and buttons on the control panel are operating correctly.
b-1) Display test
Pressing the
Start
button from the control panel menu,
“H”
is displayed 16 characters by 1 line on the
display.
The next time the
Start
button is pressed, all the LCD dots on the display are displayed.
Check for any LCD dots in the display that are not displayed.
b-2) LED lamp test
The LED lamp test is selected by pressing the
Start
button after the display test.
When the
Start
button is pressed, all the lamps on the control panel light.
Check for any LED that
does not light during the test.
b-3) Operation button test
The Operation button test is selected by pressing the
Start
button after the LED lamp test.
In this test, you press the button corresponding to the displayed character to put it out.
The table
giving the correspondence between the characters and the buttons is below.
Character
Operation button
1-#
Numeric buttons
R
Redial/Pause button
D
Coded dial button
L
Color/B&W button
$
Resolution button
&
Receive Mode button
C
Copy button
O
Hook button
F
Function button
E
Set button
M
Resume button
When all the characters displayed have gone out, the system next starts the one-touch speed dialing
button test.
The letters a-l are displayed on the display, corresponding to one-touch speed dialing
buttons 01-12.
Each letter displayed on the display goes out when its corresponding one-touch speed
dialing button is pressed.
In this test, check for operation buttons whose corresponding character or letter does not go out when
the button is pressed. (See page 3-30 The buttons do not work.)