Minolta Di152 Service Manual page 141

Code Description
C1200 Faulty ASIC/memory
C1300 Polygon Motor mal-
function
C13F0 Faulty HSYNC
C1468 Faulty EEPROM
C14A3 IR fluorescent lamp
fault
Detection Timing
ASIC/memory (for image and control) fault
• A write or read error occurs with SRAM on the Control
Board (PWB-C).
Startup failure
• A LOW Polygon Motor (M2) Lock signal is not
detected within a given period of time that begins 1
sec. after the Polygon Motor has started turning.
Lock signal fault: Unstable after the first Lock signal has
been detected
• For a period of 1 sec. after the first LOW Polygon
Motor (M2) Lock signal (first Lock) has been detected,
the next LOW Polygon Motor Lock signal is not
detected.
Lock signal fault: Lock signal out-of-timing
• A LOW Polygon Motor (M2) Lock signal is not
detected for a continuous given period of time while
the rotation of the Polygon Motor remains stabilized.
Faulty Lock signal
• A LOW Polygon Motor (M2) Lock signal is detected for
a given period of time or more when the Polygon
Motor remains deenergized.
Laser scanning system malfunction
• The SOS Sensor does not detect a rising edge of
SOS within a given period of time after the Polygon
Motor (M2) has started turning and a laser output has
been started.
• The SOS Sensor detects no rising edges of SOS
while VIA (image area control) is ON.
EEPROM fault
• Data cannot be written in EEPROM.
• Data stored in EEPROM is wrong.
The Exposure Lamp (LA2) of the Scanner fails to turn
ON.
• The intensity of the Exposure Lamp is a predeter-
mined value or less during shading and re-shading.
T-21