Sam4s ER-650 Service Manual page 63

8-7 Drawer and RTC(Real Time Clock) Problem
Drawer Problem
Drawer Open
Failure ?
N
Compulsory
Failure?
N
End
RTC Problem
RTC
Ok?
Y
End
SAM4S ER-650 SERIES
Y
1. Check the Drawer Connector & Harness.
2. Check Drawer Signals on CPU (p8.4/P8.7).
3. Check the related circuit & Component
D288 (Q4,Q5).
4. Check the Solenoid in the Drawer.
Y
1. Check the Compulsory Harness &
Connector.
2. Check the micro switch in the Drawer.
N
1. Check the Clock (32.768KHz)
2. Check the Battery Voltage (VBU)
3. Check the RF5c15 & the related circuit.
(Addr/Data bus, /CS signal)
8 Trouble Shooting
8-7