Rapid-Air RAPID LIGHT LOOP: RLL - Manual (Page 5)

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MAX. VOLTAGE OUTPUT. R33
This pot is set for normal 6 VDC operation. Adjust this pot to increase voltage to 10
VDC only if required by controlled device drive.
PAYOUT/REWIND MODE SELECT
Select either payout or rewind mode from this switch. Payout mode is selected by
setting the toggle switch towards the interior of the board.
TROUBLESHOOTING ELECTRONIC CIRCUITRY
69100089 RECEIVER BOARD
1. Place in payout mode. Block bottom light beam. Controlled device motor should
stop if on. Block top light beam with material. Motor should run approx. 95 % full
speed. Block second to bottom light beam. Motor will slow to approx half speed.
Continue to Ramp down motor speed by blocking second to bottom light beam. Ramp
up motor speed by blocking second to top light beam. If any of these functions do not
work check appropriate receiver alignment using 2 below as a guide.
2. Each receiver should respond to a blocked beam by sending a high (no pulses)
signal to the interface control pwb. Check TP-3 to TP-4 with a scope. Align pwb for 5
micro second pulse width TP-3 to TP-4 with no material blocking beam. Approx. 7.92
to 7.97 VDC with a DVM, if a scope is not available.
3. If each of the receivers are checked for proper alignment and a function still doesn't
work, the problem is most likely a defective control pwb 69100091.
4. There is one fuse on the main pwb, Fl. This is a PICO 1 amp Little fuse. Turn
power off before removal. 115 VAC is present in this circuit.
5. Contact Rapid-Air for assistance, if fuse is checked and problem still persists.