Ricoh A219 Service Manual page 251

SERVICE CALL CONDITIONS
CODE #13 — ZERO CROSS SIGNAL ERROR
- Definition -
The CPU does not receive the zero cross signal within 2.0 seconds, or
the interval between zero cross signals is more than 2.0 seconds.
- Possible Causes -
•
Defective main control board
•
Defective ac drive/dc power supply board
•
Zero cross line open
•
CN101 on the main control board or CN207 on the ac drive/dc power
supply board is not correctly connected.
⇒
SC CODE#14
- Definition -
The detected current is neither 50 or 60 Hz.
- Possible Causes -
•
Defective main Control Board
•
Defective AC Drive / DC Power Supply Board
•
Zero Cross line open
•
CN101 on the Main Conrol Board or CN207 on the AC Drive / DC
Power Supply Board is not correctly connected
•
Power line is not stable
* to Clear Service Code 14:
•
Turn the Main Power Switch "OFF" and "ON"
CODE #21 — SCANNER HOME POSITION ERROR 1
- Definition -
The scanner home position sensor's output remains LOW (de-actuated)
for 10 seconds after the main switch is turned on, or the output remains
LOW (de-actuated) after the scanner returns during the copy process.
- Possible Causes -
•
Defective home position sensor
•
Defective scanner drive motor
•
Defective main control board
•
Defective ac drive/dc power supply board
•
Defective scanner drive circuit
A219
CÓPIA NÃO CONTROLADA
7-24
CÓPIA NÃO CONTROLADA
Rev. 8/29/97
SM