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OF5750/5950 Series January 2001
5 - 2
5.2.1 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 fre-
quency and each voltage.
1) Clock Frequency
• Measurement point:
R76 board; R180-2 pin and ground terminal
• Specification:
20.000 MHz ± 50 PPM
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:
R76 board; CN1-A8 pin and ground terminal
• Specification:
+5.2V ± 4%
3) +5V DC Voltage
• Measurement point:
R76 board; CN1-B10, A11, B11 and A12 pin and ground terminal
• Specification:
+5.1V ± 4%
4) +8V DC Voltage
• Measurement point:
R76 board CN1-A16 pin and ground terminal
• Specification:
+8V ±4%
5) –8V DC Voltage
• Measurement point:
R76 board; CN1-B15 pin and ground terminal
• Specification:
–8V ±4%
6) +24V DC Voltage
• Measurement point:
R76 board; CN1-B6 pin and ground terminal
• Specification:
22V to 27V
7) +38V DC Voltage
• Measurement point:
R76 board; CN1-B12, A13 and B13 pin and ground terminal
• Specification:
+26V to +45V
8) Contact Image Sensor Output (SIG signal)
• Measurement point:
R76 board; CN13-1 pin and ground terminal
• Specification:
A waveform sample is shown below.
• Test chart:
White sheet (A4 size)
1.0Vp-p
2.5ms
Summary of Contents for OKIFAX 5950
Page 9: ...CHAPTER 1 GENERAL INFORMATION ...
Page 101: ...OF5750 5950 Series January 2001 1 92 1 6 21 NIC Information ...
Page 107: ...CHAPTER 2 INSTALLATION PROCEDURE ...
Page 264: ...CHAPTER 3 BRIEF TECHNICAL DESCRIPTION ...
Page 272: ...CHAPTER 4 MECHANICAL DISASSEMBLY AND REASSEMBLY ...
Page 277: ...OF5750 5950 Series January 2001 4 5 Appearance of the OKIFAX 5750 5950 ...
Page 302: ...CHAPTER 5 ADJUSTMENTS ...
Page 306: ...CHAPTER 6 CLEANING AND MAINTENANCE ...
Page 341: ...CHAPTER 7 TROUBLESHOOTING AND REPAIR FOR OKIFAX 5750 5950 ...
Page 400: ...Appendix A PC Board Descriptions and Operation ...
Page 491: ...Appendix B DescriptionsofPrintOperation ...
Page 513: ...Appendix C Not used at this time ...
Page 516: ...OF5750 5950 Series January 2001 D 1 Section 1 CABINET ASSEMBLY 27 28 29 ...
Page 518: ...OF5750 5950 Series January 2001 D 3 Section 2 CONTROL PANEL ASSEMBLY 11 ...
Page 520: ...OF5750 5950 Series January 2001 D 5 Section 3 PRINTER ASSEMBLY 53 54 31 10 55 52 34 56 ...
Page 523: ...OF5750 5950 Series January 2001 D 8 Section 4 BASE ASSEMBLY ...
Page 525: ...OF5750 5950 Series January 2001 D 10 Section 5 FRAME ASSEMBLY SCANNER L 31 30 33 32 ...
Page 527: ...OF5750 5950 Series January 2001 D 12 Section 6 FRAME ASSEMBLY SCANNER U ...
Page 529: ...OF5750 5950 Series January 2001 D 14 Section 7 CABLES OPTION BOARDS ...
Page 530: ...OF5750 5950 Series January 2001 D 15 28 29 Section 7 CABLES OPTION BOARDS ...
Page 532: ...Appendix E Not used at this time ...