Frymaster 8196203 manual Interface Board Diagnostic Chart, Diagnostic LED Legend

7.10Interface Board Diagnostic Chart

The following diagram and charts provide ten quick system checks that can be performed using only a multimeter.

Diagostic LEDs

AL HI HTCMP24V HT HI AL

		J3
3	2	1
6	5	4
9	8	7

	12	11	10
	15	14	13
K1	K2		K3	K4

	Left			Left	Right	Right
	Latch			Heat	Heat	Latch
	Relay			Relay	Relay	Relay
J1	12	9	6	3	12	9	6	3 J2
	11	8	5	2	11	8	5	2
	10	7	4	1	10	7	4	1

	Diagnostic LED Legend
CMP	indicates power from 12V transformer
24	indicates power from 24V transformer
HI	(RH) indicates output (closed) from right
	latch relay
HI	(LH) indicates output (closed) from left
	latch relay
HT	(RH) indicates output from right heat
	relay
HT	(LH) indicates output from left heat relay
AL	(RH) indicates output (open) from right
	latch relay
AL	(LH) indicates output (open) from left
	latch relay

PN 106-6811

Test Points

J1 Left J2 Right

NOTE – When testing the test points on J1 and J2 test use the illustration above dis- regarding any silkscreened numbers on the board depicting the location of Pin 1. Pin 1 is located in the bottom right corner of Both J1 and J2. These test points are ONLY for RE Series boards with J1 and J2 plugs on the front of the board.

Meter Setting	Test	Pin	Pin	Results
12 VAC Power	50 VAC Scale	3 of J2	1 of J2	12-16 VAC
24 VAC Power	50 VAC Scale	2 of J2	Chassis	24-30 VAC
*Probe Resistance (RH)	R X 1000 OHMS	11 of J2	10 of J2	See Chart
*Probe Resistance (LH)	R X 1000 OHMS	1 of J1	2 of J1	See Chart
High-Limit Continuity (RH)	R X 1 OHMS	9 of J2	6 of J2	0 - OHMS
High-Limit Continuity (LH)	R X 1 OHMS	6 of J1	9 of J1	0 - OHMS
Latch Contactor Coil (RH)	R X 1 OHMS	8 of J2	Chassis	3-10 OHMS
Latch Contactor Coil (LH)	R X 1 OHMS	5 of J1	Chassis	3-10 OHMS
Heat Contactor Coil (RH)	R X 1 OHMS	7 of J2	Chassis	18-25 OHMS
Heat Contactor Coil (LH)	R X 1 OHMS	4 of J1	Chassis	18-25 OHMS

* Disconnect 15-Pin harness from the computer/controller before testing the probe circuit.

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