UX-108U/178U/188U
FO-375U
[3] Troubleshooting
Refer to the following actions to troubleshoot any of problems mentioned
in 1-4.
[1]
A communication error occurs.
[2]
Image distortion produced.
[3]
Unable to do overseas communication.
[4]
Communication speed slow due to FALLBACK.
•
Increase the transmission level SOFT SWITCH A4-1, 2, 3, 4, 5.
May be used in case [1] [2] [3].
•
Decrease the transmission level SOFT SWITCH A4-1, 2, 3, 4,
5. May be used in case [3].
•
Apply line equalization SOFT SWITCH A5-1, 2.
May be used in case [1] [2] [3] [4].
•
Slow down the transmission speed SOFT SWITCH A2-1, 2, 3,
4. May be used in case [2] [3].
•
Replace the TEL/LIU PWB.
May be used in all cases.
•
Replace the control PWB.
May be used in all cases.
*
If transmission problems still exist on the machine, use the following
format and check the related matters.
TO:
ATT:
Ref.No. :
CC:
ATT:
Date
:
FM:
Dept
:
Sign
:
2 – 17
* Please complete this report before calling the “TAC” hotline if problem still occurs.
***** Facsimile communication problem *****
Ref.No.:
Date:
From: Mr.
Fax Tel No.:
Our customer
Name
Tel No.
Address
Fax No.
Contact person
Model name
Other party
Name
Tel No.
Address
Fax No.
Contact person
Model name
Problem mode
Line: Domestic / international
Model: G3
Phase: A, B, C, D.
Reception / Transmission
Automatic reception / Manual reception
Automatic dialing / Manual dialing / Others
Frequency:
%
ROM version:
Confirmation
item
Please mark problem with an X.
No problem is: 0.
A1 A2 B1 B2 C1 C2
D1 D2 E1 E2
Transmission level setting is ( ) dB at our
customer
Transmission level ( ) dBm
Reception level ( ) dBm
By level meter at B1 and B2
Comment
**** Please attach the G3 data and activity report on problem. ****
Countermeasure
Our customer
Our service
A1
A2
C1
D2
B1
B2
E1
E2
C2
D1
Other party
Other party's service
Summary of Contents for FO-375
Page 61: ...6 7 UX 108U 178U 188U FO 375U Control PWB parts layout Top side ...
Page 62: ...6 8 UX 108U 178U 188U FO 375U Control PWB parts layout Bottom side ...
Page 64: ...6 10 UX 108U 178U 188U FO 375U TEL LIU PWB parts layout ...
Page 66: ...6 12 UX 108U 178U 188U FO 375U Power supply PWB parts layout ...