【摘 要】
：
有一台上海牌JB5-2BU 14英寸黑白电视机,行场失步,且出现图1所示的横向白条干扰。经查图象中放、同步分离电路均正常。进一步查找图2所示的AGC电路,发现2BG14(2CK11)反向电
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有一台上海牌JB5-2BU 14英寸黑白电视机,行场失步,且出现图1所示的横向白条干扰。经查图象中放、同步分离电路均正常。进一步查找图2所示的AGC电路,发现2BG14(2CK11)反向电阻明显减小至1.5KΩ以下。
There is a Shanghai brand JB5-2BU 14-inch black and white TV sets, out of sync, and appear as shown in Figure 1 horizontal white bars interference. After investigation of the image, synchronous separation circuit are normal. Looking further to the AGC circuit shown in Figure 2, it was found that the reverse resistance of 2BG14 (2CK11) was significantly reduced below 1.5 KΩ.
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