Slm Module - Samsung OFFICESERV 7100 Service Manual

3.4.4 4SLM Module

3.4.4.1 Ring Generation is not Available
Start
Ring generation is not
available in all ports?
No
-54 V input power is normal?
Yes
+12 V power is normal?
Yes
Le88241 Pin 1 input is -90 V?
Yes
Le88241 Pin 69 input is -90 V?
Yes
Replace Le88241. End.
© SAMSUNG Electronics Co., Ltd.
Yes
Reaplce 4SLM.
No
Replace UNI and check PSU.
No
Check adjacent circuit of U2 and
replace it.
No
Check adjacent circuit of Switching
Regulator(T200) and replace it.
No
Check adjacent circuit of Switching
Regulator(T200) and replace it.
OfficeServ 7100 Service Manual
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