OF5750/5950 Series January 2001
7 - 20
7.16 No Acoustic Line Monitor
There are two source routes of acoustic line monitor:
(a) General communication signal
(b) DP pulse signal
Start
No
MONITOR CONTROL
(Technical setup No. 02)
has been set to OFF?
Replace MCNT (R76) Board.
The signal appears?
Replace the speaker.
Connect oscilloscope probe
across CN10-1 (SP) and
CN10-2 (AG).
MONITOR VOLUME
(Machine settings No. 11)
has been set to HIGH/
HIGH-MID/MID/LOW/OFF
Set MONITOR VOLUME to
HIGH/HIGH-MID/MID/LOW/OFF
No (ON)
Yes
Yes
Yes (OFF)
Set it to ON.
A message can be
received normally?
Go to 7.9.
(Reception problem)
No
Yes
Replace MCNT (R76) board.
No
Yes
Signal route:
CN11-B23
→
TRI5-2, 1
→
IC21-12, 3
→
IC20-3, 5
→
CN10-1
Signal route:
CN12-A6, B6
→
CN11-A22
No
Receive signal appears
acrossCN11-A22 (R) of
MCNT (R76) board?
Replace C34 or H34
Modem board
No
Yes
Signal route:
CN201-8
→
IC204-2, 1
→
CN201-5
Receive signal appears
acrossCN201-5 (RM) of
C34 or H34 Modem board?
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 ...