Overall Troubleshooting Flow Chart - Oki OKIOFFICE44 Service Manual

7.1.1

Overall Troubleshooting Flow Chart

NOTE: R44 Board for OKIOFFICE 44 is designated as the MCNT Board in this flowchart.
Start
LCD works?
Yes
ALARM LED lights?
No
Key operation activates
the unit.
(Pressing SELECT FUNCTION key causes
"SELECT FUCTION (OT) MEMORY AVALI=100%" to appear on LCD?
Pressing STOP key makes a key touch-tone?)
Yes
Perform SELF-DIAGNOSIS.
Print test OK?
Yes
PROG1/PROG2 check OK?
Yes
RAM check OK?
Yes
Local copy OK?
Yes
Auto dial OK?
Yes
Transmission problem?
No
Auto reception OK?
Yes
Reception problem?
No
Verify symptom.
Troubleshooting
No
Go to 7.1.2 (No LCD operation).
Yes
Go to 7.1.3 (ALARM LED on).
No
Replace R44 and/or OPE (O4W) unit.
Note*:
No
Go to 7.1.4 (Printing test failure).
No
Replace R44 board
Replace RAM(s) on MEM board.
No
Then, replace R44 board.
No
Go to 7.1.5 (No local copy).
No
Go to 7.1.6 (Auto dial failure).
Yes
Go to 7.1.7 (Transmission problem).
No
Go to 7.1.8 (Auto reception failure).
Yes
Go to 7.1.9 (Reception problem).
7 - 3
OPT-RAM "OK" or "NG" is
printed when the MEMORY board
(Option) is inserted on the R44
board.
Service Manual, P/N 59276801
OKIOFFICE 44