Okifax 5000 Series Confirmation Items - Oki B 4100 Maintenance Manual

5.3.1 OKIFAX 5000 Series Confirmation Items

The clock frequency and power voltage of the machine are not possible to adjust in the field.
However, their measurement procedures are described here for confirmation of clock frequency and each
voltage.
1) Clock Frequency
• Measurement point:
• Specification:
Note: If the counter does not read with 20.000 MHz, replace with a new crystal oscillator (X1).
2) +5V DC Voltage (SUB)
• Measurement point:
• Specification:
3) +5V DC Voltage
• Measurement point:
• Specification:
4) +8V DC Voltage
• Measurement point:
• Specification:
5) –8V DC Voltage
• Measurement point:
• Specification:
6) +30V DC Voltage
• Measurement point:
• Specification:
7) Contact Image Sensor Output (SIG signal)
• Measurement point:
• Specification:
• Test chart:
40055101TH Rev.4
M17 board; LC2-3 pin and ground terminal
20.000 MHz 50 PPM
M17 board; CN16-1 pin and ground terminal
+5V 4% (+4.5V to 5.2V)
M17 board; CN1-B12/A13/B13 pin and ground terminal
+5V 4% (+4.5V to 5.2V)
M17 board; CN1-A14 pin and ground terminal
+6.5V to 15V
M17 board; CN1-B14 pin and ground terminal
–15V to –6.5V
M17 board; CN1-A15/B15 pin and ground terminal
+24V to +45V
M17 board; CN10-1 pin and ground terminal
A waveform sample is shown below.
White sheet (A4 size)
1.0Vp-p
2.5ms
202 /