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问:TC-D25C主开关打开后待机指示灯亮,不能稳定工作,收看中有时自动回到待机状态,有时不能解除待机状态。当能二次开机时,声、图皆正常。请问市电低于200V是否会有此现象,是否需外购交流稳压器。 (浙江丁惠) 问:松下TC29V30H画王彩电,送修故障为不能开机。检查中发现稳压管D819击穿,副电源保护,用12 V/0.5 W稳压管更换后开机又被击穿。偶然发现若不用此稳压管则一切正常,但副电源开关管烫手,遂不敢再开机,请问故障在何处。 (成都某维修站)
Q: After the main switch of TC-D25C is turned on, the standby indicator light is on, it can not work steadily, and sometimes it automatically returns to the standby status when watching, sometimes it can not be released. When the second boot, the sound, the picture is normal. Will the electricity below 200V will have this phenomenon, whether the need to buy AC voltage regulator. (Zhejiang Ding Hui) Q: Panasonic TC29V30H painting Wang TV, repair failure can not boot. Inspect the regulator found D819 breakdown, deputy power protection, with 12 V / 0.5 W regulator after the boot has been broken down. Occasionally found that if not the regulator is normal, but the deputy power switch hot, then dare not boot, may I ask where the fault. (Chengdu a repair station)