OfficeServ 7100 Service Manual
© SAMSUNG Electronics Co., Ltd.
3-53
3.5.1.2 When RELAY Cannot Be Controlled
The method to solve the problem when RELAY cannot be controlled is as follows:
No
Yes
No
Yes
No
Yes
- Check if +5 V is supplied to RELAY.
- Replace RELAY.
Check ADDRESS, DATA BUS.
Replace the TRANSISTOR and input
resistance.
End
Check if the control signal is
properly output from CPLD.
Does the TRANSISTOR operate
normally?
Is the control signal normal?
Is the RELAY sound generated?
Operate the corresponding
TRANSISTOR and check its status.
Содержание OFFICESERV 7100
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