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Troubleshooting
7 - 24
OKIOFFICE 44
Service Manual, P/N 59276801
7.1.16 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 function No. 02)
has been set to OFF?
Replace R44 Board.
The signal appears?
Replace the speaker.
Connect oscilloscope probe
across CN8-01 (SP) and
CN8-02 (AG).
MONITOR VOLUME
(Function program No. 06)
has been set to
LOW or HIGH?
Set MONITOR VOLUME
to LOW or HIGH.
No (ON)
Yes
Yes
Yes (OFF)
Set it to ON.
A message can be
received normally?
Go to 7.1.9.
(Reception problem)
No
Yes
Signal route (R):
CN10-A6, B6
→
IC12-1 (RM)
→
TR1-2
→
IC11-1
→
IC11-3
IC5-5
No
Summary of Contents for OKIOFFICE 44
Page 2: ...All specifications are subject to change without notice Service Manual OKIOFFICE 44 59276801...
Page 135: ...Disassembly 4 6 OKIOFFICE 44 Service Manual P N 59276801 Whole Unit Picture FX048 CP4 1 Fig 01...
Page 329: ...Illustrated Parts List D 6 OKIOFFICE 44 Service Manual P N 59276801 Section 2 Printer Unit...
Page 331: ...Illustrated Parts List D 8 OKIOFFICE 44 Service Manual P N 59276801 Section 3 Operator Panel...
Page 351: ...Illustrated Parts List D 28 OKIOFFICE 44 Service Manual P N 59276801 Section 12 Cables...
Page 357: ...Board Layout E 2 OKIOFFICE 44 Service Manual P N 59276801 MEM eps E 2 MEM PCB...
Page 358: ...Board Layout E 3 OKIOFFICE 44 Service Manual P N 59276801 TEL U eps E 3 TEL U PCB...
Page 359: ...Board Layout E 4 OKIOFFICE 44 Service Manual P N 59276801 Hook eps E 4 Hook PCB...
Page 388: ...OKIOFFICE 44 Service Manual Part Number 59276801 Printed in the USA...