Samsung DMT300RFB/XAA Troubleshooting Manual page 3

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)
Ω
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