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IC-7000 with full ALC in HF


 

Hi guys

I have in my hands an IC-7000 with several issue.

One of them is the following :

in HF I had 100 watt in all bands, no problem but ALC meter goes always in full-red zone, the ALC scale is full.

I beleive was an adj issue so I have dona all adjustament as service manual describes.

Before bias driver and finals (1? & 2), no problem, Gain HF1, HF2, HF3; then power 1, 10 , 25, 50, 75, 90 and 105 watt, perfect !

ALC setting ok

But when I go in RTTY full power I have ALC meter completly in full scale (red)

I suppose there is an block in TX-chain doesn't work very well so CPU pumps ALC to max.

Does anyone have any suggestions ?

Thanks in advance.

73s, Pasquale IW0HEX

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