Samsung RB215BSSB Service Manual - Page 73

* Turn on Power and check status of Relay &Driving Circuit by checking followings according to load operation . 3-CONTACT 3-CONTACT NO C NC COIL TERMINAL TEIGER COIL TERMINAL PCB CN70 CN71 Measure after separating Note) NC →NORMAL CLOSE (C-TERMINAL & ON-TERMINAL) NO →NORMAL OPEN (C-TERMINAL & OPEN-TERMINAL) C →COMMON TERMINAL OPERATION RELAY TERMINALS VALUE WHEN IT IS DIFFERENT FROM MEASURED VALUE K70 R,F DEFROST & K71 COMP OFF K72 CN70 ⑪-⑬ CN70 ⑪-⑨ CN70 ⑤-③ SUPPLY VOLTAGE (SV) K70 CONTACT SHORT,FAULTY DRIVING CIRCUIT SV K71 CONTACT SHORT,FAULTY DRIVING CIRCUIT SV K72 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT COMP ON K70 CN70 ⑪-⑬ K71 CN70 ⑪-⑨ 5~30V 5~30V FAULTY K70 OR K72 NC CONTACT SHORT,FAULTY DRIVING CIRCUIT FAULTY K71 OR K72 NC CONTACT SHORT,FAULTY DRIVING CIRCUIT K72 CN70 ⑤-③ 0V K72 NO CONTACT OPEN,FAULTY DRIVING CIRCUIT R DEFROST ON K71 CN70 ⑪-⑬ 0V FAULTY K71,K72 NC CONTACT OPEN,FAULTY DRIVING CIRCUIT K72 CN70 ⑪-⑨ SV K72 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT K70 F DEFROST ON K72 CN70 ⑤-③ CN71 ⑬-⑨ 0V K70 CONTACT SHORT,FAULTY DRIVING CIRCUIT SV K72 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT F FAN ON R FAN SSR71 CN71 ⑪-CN70 ③ 0V SSR71 OPEN,FAULTY DRIVING CIRCUIT ON C FAN ON SSR72 CN71 ③-CN70 ③ 0V SSR72 OPEN,FAULTY DRIVING CIRCUIT ICE WATER K74 CN71 ⑨-CN70 ③ 0V K74 NO CONTACT OPEN,,FAULTY DRIVING CIRCUIT VALVE ON R K76 CN71 ①-CN70 ③ 0V K76 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT LAMP ON K75 CN70 ①-③ 0V K75 NO CONTACT OPEN,FAULTY DRIVING CIRCUIT(DOOR SWITCH) F LAMP ON K73 CN71 ⑦-CN70 ③ 0V K73 NO CONTACT SHORT,FAULTY DRIVING CIRCUIT(DOOR SWITCH) ※ Room (F,R)Lamp 1. Open the F-Room door and see if its room lamp lights up. 2. Press the DOOR S/W and see if the F-Room lamp turns off. 3. Close the F-Room door and carry out the same for the R-Room. 4. When there is problem,check the room lamps and the door switches. (Refer to 4-5.DOOR S/W SENSING CIRCUIT) 5. Check the wire connection. 73