Sam4s ER-420F - ER-420 F Block Diagram

8 Troubleshooting
8-6 SAM4S ER-420M/F SERIES
Drawer Problem
Drawer Open
Failure ?
Y
N
1. Check the Drawer Connector & Harness.
2. Check the related circuit & Component KSD288 (Q1)
MMBT2222A(Q2) on Main PBA.
3. Check the Solenoid in the Drawer.
Compulsory
Failure?
1. Check the Compulsory Harness & Connector.
2. Check the Micro switch in the Drawer.
N
Y
End
8-6 Drawer and Spool Motor Problem