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Samsung DMT300RFB/XAA Troubleshooting Manual page 3

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CN302
1-6 Power Relay Driver (Blk-Org)
2-6 Heater Relay Driver (Red-Org)
4-Trubidity Receiver (Yel)
5-Trubidity Transmitter (Brn)
7-6 5vdc (Pnk-Org)
8-Rinse Aid Sensor (Gry)
9-6 12vdc (Wht-Org) (Pwr On)
9-6 6vdc (Wht-Org) (Pwr Off)
CN301
1-Low Water Sensor
3-Overflow Sensor
5-Water Counter
6-Leakage Sensor
8-Thermistor
9– 12vdc
10-Door Check Receiver
Components
Component
Voltage
Water Valve
120vac
Drain Pump
120vac
Heater
120vac
Fan Mtr
120vac
Disp Wax Mtr
120vac
Thermal Actuator
Circulation Mtr
120vac
Thermistor
Temp.
Resistance (kΩ)
(ºF)
125.78
98.323
77.454
61.465
49.12
39.517
31.996
# tsDMT300RF RevB 03/21/2011
CN01 CN1 PBA Power
1 120vac L1 (Wht)
3 120vac N (Blk)
1.2 KΩ
37Ω-42Ω
13Ω
1.8kΩ
2.3KΩ
1.45kΩ
21.5Ω
Resistance
(kΩ)
41
26.065
50
21.385
59
17.599
68
14.579
77
12.14
86
10.159
95
8.542
Main PCB
CN201
1-(CN101-1) Wash Mtr (Red-Wht) 120vac (Ω test to Yel on Disp)
2-(CN101-1) Fan Mtr (S/Blu-Wht) 120vac (Ω test to Yel on Disp)
5-(CN101-1) Disp Wax Mtr (Wht-Wht) 120vac (Ω test to Yel on Disp)
7-(CN101-1) Inlet Valve (Brn-Wht) 120vac (Ω test to Yel on Disp)
8-(CN101-1) Drain Pump (Org-Wht) 120vac
Temp.
(ºF)
104
113
122
131
140
149
158
CN803 Key Driver
10-11 5vdc
3

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