Samsung OFFICESERV 7100 Service Manual page 137

3.4.8.2 When the Power Is Not Supplied
The method to solve the problem when the power is not supplied to the 16SLI2/16MWSLI
port is as follows:
Check the voltage of both ends
of TIP-RING.(-40 V or more)
Check if -40 V or more is supplied
between PIN3-PIN6 of RELAY.
Is the voltage -40 V or more?
Yes
If PIN3 of LE79555
-40 V or more?
Yes
Replace BAV23C.
End
© SAMSUNG Electronics Co., Ltd.
No
Check or repair LF4007.
No
Check PIN2 of LE79555.
(PWM Pulse)
OfficeServ 7100 Service Manual
3-43