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The issue with the chassis SO239 was brought to my attention based on MK's description of what was happening. IC10 would have nothing to do with it. MK's scope should be able to see a signal along the entire path right up to L6 with no power applied to the radio and for good measure unsolder D15 & D16 if he can't get his equipment to show all along that path then there must be other issues either with the test equipment or the path in the radio that is interrupted by shorts or opens in that path. Once that issue is resolved then IC1 can be tackled if indeed there is an issue there. I will say that it would only take a minute or less to check the voltages in IC1 but even if you removed IC1 it still would have no effect on not having a signal going into L6 especially with D16's and 15's one leg unsoldered. And I am now taking my toys and going home.

OldTech

<blockquote data-quote="OldTech03" data-source="post: 662208" data-attributes="member: 51291">The issue with the chassis SO239 was brought to my attention based on MK&#039;s description of what was happening.&nbsp; IC10 would have nothing to do with it. MK&#039;s scope should be able to see a signal along the entire path right up to L6 with no power applied to the radio and for good measure unsolder D15 &amp; D16 if he can&#039;t get his equipment to show all along that path then there must be other issues either with the test equipment or the path in the radio that is interrupted by shorts or opens in that path. Once that issue is resolved then IC1 can be tackled if indeed there is an issue there. I will say that it would only take a minute or less to check the voltages in IC1 but even if you removed IC1 it still would have no effect on not having a signal going into L6 especially with D16&#039;s and 15&#039;s one leg unsoldered. And I am now taking my toys and going home. OldTech</blockquote>

[QUOTE="OldTech03, post: 662208, member: 51291"] [B][SIZE=5]The issue with the chassis SO239 was brought to my attention based on MK's description of what was happening. IC10 would have nothing to do with it. MK's scope should be able to see a signal along the entire path right up to L6 with no power applied to the radio and for good measure unsolder D15 & D16 if he can't get his equipment to show all along that path then there must be other issues either with the test equipment or the path in the radio that is interrupted by shorts or opens in that path. Once that issue is resolved then IC1 can be tackled if indeed there is an issue there. I will say that it would only take a minute or less to check the voltages in IC1 but even if you removed IC1 it still would have no effect on not having a signal going into L6 especially with D16's and 15's one leg unsoldered. And I am now taking my toys and going home. OldTech[/SIZE][/B] [/QUOTE]

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