本人最近修了两台伴音出现杂音的电视机(一台是熊猫54P15型,另一台是康力5448型),原以为通道故障,修后才真相大白。一、熊猫54P15型彩电刚开机一切正常,大约过1个小时以后(与外界气温有关)从喇叭中发出“吱吱”声,声音很尖,随着时间的增长而增大,最后几乎听不到伴音,调到空台,可以看到满幅、长短不齐的白色亮线。 I recently repaired the sound of two TV sets with noise (one is the Panda 54P15 type, the other is the 5448-type companion), that channel failure, repair only after the truth. First, the Panda 54P15 color TV just boot all normal, about 1 hour later (with the outside world temperature) from the speaker issued a “creak” sound is very sharp, with the increase of time and eventually almost do not listen To the sound, transferred to the empty station, you can see the full width of the missing white bright line.