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I have a old connex 3300 that has no modulation. But if you remove TR53 or R249 modulation comes back. Works with echo on or off when either component is removed. Audio chip is also good. I have been poking and testing and can not find anything wrong or unhooked. Also TR53 tested good and R249 10 K ohm resistor is good.
Anyone ever see this before?

[QUOTE="Low_Boy, post: 620672, member: 12157"] I have a old connex 3300 that has no modulation. But if you remove TR53 or R249 modulation comes back. Works with echo on or off when either component is removed. Audio chip is also good. I have been poking and testing and can not find anything wrong or unhooked. Also TR53 tested good and R249 10 K ohm resistor is good. Anyone ever see this before? [/QUOTE]

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