Panasonic KX-MB763RU (serv.man5) Service Manual ▷ View online
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KX-MB763RU-B
12.3.6.1. CALL SERVICE 1
"CALL SERVICE 1" means that the polygon motor inside the LSU does not rotate.
The rotation of the polygon motor is detected by IC300-F23pin (NREADY).
The rotation of the polygon motor is detected by IC300-F23pin (NREADY).
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12.3.6.2. CALL SERVICE 2
"CALL SERVICE 2" means that the synchronous signal out of the LSU cannot be detected.
The synchronous signal out of the LSU is detected by IC 300-G23pin. (NHSYNC)
The synchronous signal out of the LSU is detected by IC 300-G23pin. (NHSYNC)
Note:
As for the "Pulse" waveform of the above flow chart, see the timing chart.
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12.3.6.3. CALL SERVICE 3
"CALL SERVICE 3" means that the temperature of the fuser does not rise up to or exceed a constant temperature.
The temperature is monitored with the thermistor inside the fuser and detected with the voltage input into IC 300-D19.
The temperature is monitored with the thermistor inside the fuser and detected with the voltage input into IC 300-D19.
* When Call Service 3 is occurred, the cause can be distinguished by service mode 655.
Refer to P.104 for details.
Refer to P.104 for details.
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12.3.6.4. CALL SERVICE 4
"CALL SERVICE 4" means that the FAN does not run or the running of the FAN cannot be detected normally.
The running of the FAN is detected by IC300-AC20 and W24pin. "CALL SERVICE 4" is displayed when it detects NG three times
continuously.
After repairing, copy three times.If “CALL SERVICE 4 “ is displayed, check again.
The running of the FAN is detected by IC300-AC20 and W24pin. "CALL SERVICE 4" is displayed when it detects NG three times
continuously.
After repairing, copy three times.If “CALL SERVICE 4 “ is displayed, check again.
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