82
4.2.
Improper LCD Display
•
LCD Contrast
Adjustment
1. Press “FUNCTION”, “7”, “8” and “SET” keys to enter “8: Maintenance Mode”.
2. Press ”V” or “/\” arrow keys to select “6: LCD Brightness?” and press “SET” key.
3. Press “<“ cursor key for Lighter or “>” key for Darker.
4. Press “SET” or “STOP”.
Replace the SC PCB.
Is the trouble
resolved?
Replace the Low
Voltage Power
Supply Unit.
Is the trouble resolved?
Check connectors on the SC PCB
and PNL PCB.
Is LED/LCD displayed?
Does the display appear normal?
Replace the LCD
Module.
Replace the
Panel.
Does CNP501, pin 5 on the SC
PCB m5 VDC?
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
START
END
END
Summary of Contents for e-STUDIO190F
Page 5: ...5 ...
Page 21: ...21 1 2 Control Panel For Americas e STUDIO190F ...
Page 119: ...119 Sensor and Switch Location ...
Page 185: ...185 6 3 Printer Receive Mechanism 6 3 1 Component Layout and Paper Path ...
Page 234: ...234 7 Installation Refer to Quick Guide For Facsimile and Copy Functions ...
Page 297: ...297 memo ...
Page 299: ...299 memo ...