Why TV can only hear the sound, but can not see the image

Category: Home Appliances

Question:
why my family could only hear the sound of the TV, but do not see the image

Answer:
one to accelerate the oxidation of polar potentiometer contact bad, adjusting what
2, CRT seat being exposed for a
3, brightness, channel failure, check decoding block and the surrounding circuitry
good repair

Answer:
tubes broken part of the

repair bar

Answer:
1. to see whether it is off to a minimum brightness of the two. did not watch TV too damp, you can start half an hour, if a little light on the TV tube socket damp note, sent to repair shops deal with

Answer:
CRT tube socket caused by damp. Proposed to replace tube socket. The general failure of tens of minutes after that will gradually improve.

电视为什么只能听见声音,而看不见图像

分类:家电

问题:
我家的电视为什么只能听见声音,而看不见图像呢

回答:
一,加速极电位器氧化接触不良,调一下
二,显像管座接触不良换一个
三,亮度通道故障,查解码块及周围电路
很好修

回答:
显象管部分坏掉了

送修吧

回答:
1.看看是否是亮度关到最小了2.看电视受潮没,可以开机半小时,若有…