Ricoh BR-C1a Basic Service Training page 168

 EDRB (Exit Drive Board). Controls the motors in
the exit unit on the left side of the drawer.
 CNB (Connector Board). Sorts and routes signals
on harnesses between the BCU and IOB.
 URRB (Ultra-sonic Receive Board). This is the
small PCB on the double-feed sensor above the
original path in the ADF. Receives the ultra-
sound signals.
 URTB (Ultrasonic Transfer Board). This is the
small PCB on the double-feed sensor below the
original path in the ADF. Emits the ultra-sound
signals.
Slide 168
No additional notes
Summary of Board Functions - 5
168
BR-C1 Training