Control Board Layout; Dcm-751B_H - Hoshizaki DCM-751BAH Service Manual

A. Control Board Layout

1. DCM-751B_H

Control Switch
#1 to #2 (W/BK)
"ICE"-Open-5VDC
"DRAIN"-Closed-0VDC
• K1 Connector
#3 GM (DBU)
#2 GM Voltage
Input (BR)
•
K2 Connector
Drain Valve
#10 (W/BU)
Transformer Input
#9 (W/R)
Inlet Water Valve
#8 (W/BR)
Transformer Input
#7 (W/R)
Dispense Water
Valve #6 (W/O)
24VAC Input
#5 (W/R)
Agitating Motor
#4 (O)
115VAC Input
#3 (BK)
Dispense Motor
#2 (P)
115VAC Input
#3 (BK)
LED Legend:
AM-agitating motor
COMP-compressor
FLUSH-drain valve
GM-gear motor
ICE-dispense motor
WTRDP-water dispense valve
WTRIN-inlet water valve
High-Pressure Switch
#3 to #4 (Y)
Open-5VDC
Closed-0VDC
•
S1 Dip Switch
5VDC Ground (GND) Terminals
Fig. 9a
33
Gear Motor Protect Relay Circuit
#5 to #6 (W/O)
Relay De-Energized-Open-5VDC
Relay Energized-Closed-0VDC
•
K9 Connector
5VDC
•
"POWER OK" LED
•
K6 Connector
Open
•
"SERVICE" Button
(Ice Purge Cycle Bypass)
•
K8 Connector
Transformer 24VAC Input
#1 (W/R)
Transformer 24VAC Neutral
#2 (LBU)
Mechanical Bin Control
#3 to #4 (GY)
Float Switch Output
#5 (BK)(+)
Upper Float Switch
#6 (R)
Lower Float Switch
#7 (DBU)
•
K7 Connector
Portion Ice Dispense
Signal #2 (Y)
Water/Ice Dispense
Output #3 (BR)(+)
Continuous Ice Dispense
Signal #5 (R)
Water Dispense Signal
#8 (DBU)