TROUBLESHOOTING
TV
Symptom No power supply No picture and no sound Cause Defective power switch (SW100). Defective DC-DC converter (T100). Defective tuner (TU200). Defective Q200. Defective IC200. Defective IC300. Defective IC270. Defective IC700. Picture OK but no sound Defective F201. Defective IC200. Defective IC600. Defective phone jack (JK600). No reception of VHF or UHF Defective tuner (TU200). Defective IC270. Defective power switch (SW100). Solution Replace. Replace. Replace. Replace. Replace. Replace. Replace. Replace. Replace. Replace. Replace. Replace. Replace. Replace. Replace.
RADIO
When the radio is defect, replace the radio PCB unit.