Hi All, I was wondering if any you wonderful people could help a new guy out. I've got a Sansui G-6000 that I've had for about 4 years now. Well, 2 of the lamps blew out so I finally got around to replacing them with LEDs. While I have it opened I also wanted to check the DC offset and Bias and Deoxit the switches. I've checked the DC and it required only a little change, but I am still trying to figure out where the test pins are for the Bias measurement. According to the service manual, i test at points 77 and 78 which appear to me to be the post near the upper right hand corner of the speaker relay. Where do I put the other lead to test? I am not sure and I don't want to accidentally screw something. Any help would be greatly appreciated. Thanks!