咨询关于ts-50s [复制链接]

俺的ts-50s今天突然面板背光灯不亮了（lcd能够显示），发射正常，但是面板上的on air和at tune指示灯也都不亮了， 请教各位大侠是哪里出了问题呢~~~哪位大侠可以提供维修服务？。。

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俺的ts-50s今天突然面板背光灯不亮了（lcd能够显示），发射正常，但是面板上的on air和at tune指示灯也都不亮了， [表情] [表情] 请教各位大侠是哪里出了问题呢~~~哪位大侠可以提供维修服务？。。

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你不学习，寄到ba5da去修就可以了。

呵呵,今天放狗搜到了,晚上回家试试看~~
problem:
no display illumination, leds on air, at tune no function the menu item 2 has no effect, display keeps always dark.
all other functions normal.

possible reason:
bad contact lcd assy for 5v line to r9, r10 and ic5.
power on the ts50 and check voltage at r9/r10.
if voltage is 0v, but display readout is active, the reason might be as discribed.

measurement to fix it:
look for the small hole near r9 at the lcd assy, component side view, where the contact between the two sides of the lcd assy is located.
if you have no service manual:
this is the side oriented to the front side of the device.
r9/r10 are located close to the two leds.
take a small size needle to pick through the contact hole to encrease the diameter.
make a contact between the two layers by soldering a piece of wire across the hole.
check the 5v at r9/r10.
73, mario
dj7ua