Reference Information; Troubleshooting - Sam4s ER-5100 Service Manual

6 Reference Information

This chapter describes the methods for determining the source of malfunctions in this ECR.

6-1 Troubleshooting

Key Input Failure
1. Check the fuse on the Main PCB.
2. Check all Voltage states.
3. Check/Change the related circuit
(IC9 ~IC11) on the Main PCB.
4. Check whether the Printer (ERP-
400) is out of order.
1. Check the drawer Solenoid and the connector (both the ECR side and the Drawer
side.
2. Check the manual open and closed states using the Drawer Key.
3. Check the IC4,TA3,TA4 and the related circuit on the Main PCB.
SAM4S ER-5100 SERIES
Key Board Problem
Specific Key
Failure
1. Check the affected keys and the data
bus.
2. Check the diodes (D16~D35)
Drawer Failure
Drawer does not
Automatically open
Buzzer
Malfunction
1. Check the related circuit with the
buzzer(Q4,Q17,IC2,R10,R12,R23,R
24,R100,CC3,Buzzer)
6-1