Namco System 256 Run But No Sound No Image

[chacal231077]

BGA sorry

 

[andymage]

具体哪个地方接触不良，现在还无法确定，所以
我现在把问题锁定在
1.A=VGA视频输出接口1?
2.A周围红色框的电阻
3.B=VGA视频输出接口2?
4.B周围黄色框的电阻

 

[andymage]

我检测到C64的电阻不正常，图片上面有4颗型号为：1006Y的电阻

 

[andymage]

C64的1006Y电阻竟然达到了20kx3.11数值，而另外3颗1006Y的电阻只有2KX0.08数值，谁能帮我测量下自己的246+主板的这个C64位置的电阻数值是多少？

 

[chacal231077]

Hi!

I'm only coming back to the problem now

andymage your photo and not a Namco 256 motherboard, it won't help me much

I just looked at this regulator which I don't find very normal in appearance.

I have the impression that it has heated up, it's a little speckled around on the right & the white terminal has yellowed and the solder has suffered

I can't find a 1R9 power inductor on the net.

Thank you for your review and help

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