Read Sharp AM-400 (serv.man8) Service Manual online
AM-400DE
2 – 30
[3] Troubleshooting
Refer to the following actions to troubleshoot any of the problems
mentioned in 1-4.
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.
• In crease the transmission level SOFT SWITCH 12-1, 2, 3, 4, 5.
May be used in case [1] [2] [3].
• Decrease the transmission level SOFT SWITCH 12-1, 2, 3, 4, 5.
May be used in case [3].
• Apply line equalization SOFT SWITCH 10-7, 8.
May be used in case [1] [2] [3] [4].
• Slow down the transmission speed SOFT SWITCH 10-1, 2, 3, 4.
May be used in case [2] [3].
• Replace the 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 follow-
ing format and check the related matters.
TO:
ATT:
Ref.No. :
CC:
ATT:
Date
:
FM:
Dept
:
Sign
:
***** Facsimile communication problem *****
Ref.No.:
Date:
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
Automatic dialing / Manual dialing / Others
Frequency:
% ROM version:
Confirmation
item
item
Please mark problem with an X.
No problem is: 0.
No problem is: 0.
A1 A2 B1 B2 C1 C2 D1 D2 E1 E2
Transmission level setting is (
) dB at our
customer
Transmission level (
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
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