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Hi Tommy . Have you tried to inject a signal after L305 ? The output circuit is passive and at least you can verify losses in that part of the circuit. Or maybe little loss which means power

Bob, Thanks for the encouragement I have considered all of the suggestions for troubleshooting the problem I have with the IC7000. I have tried to trace the HF RF path with an oscilloscope from

Well this is #30 then. That's OK because when the rest of us have this problem we'll appreciate every one of these replies. Keep on writin' you guys. Bob W4JFA [email protected]> wrote:

Thanks for some more responses, I should have looked into it more carefully before buying the Japan version. These radio's can sometimes be scarce to buy used when looking for one and at the time, all

See links.... /g/ic7000/message/42847 /g/ic7000/message/42796 -- Allison

Andrew, I wish there was a universal way to communicate this to all: Domestic Japanese amateur radio units are blocked at the CPU level to only be able to transmit on Japanese amateur radio

Thanks for your reply, Yeah I was afraid that would be the case.

Unfortunately almost all Japanese radios are set to conform to Japanese laws and are not modifiable to meet US US specifications. The Japanese "FCC" does not allow the radios modification and these

Hello all! I recently purchased the Japan version of the IC-7000 for use in my my shack while my other USA version one will stay as a mobile. Of course there are some difference in frequencies between

Forgive me if this has been mentioned before but as this is the 29th reply I haven't gone back and read everything. I always go first to where the effect of a fault is obvious without any ambiguity,

Thanks Tommy. much appreciated. I thought there was only one version in circulation. Anyway sounds like you have some good advice from members here . It does sound like RF power is being lost

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James, The link to all the updates of the Ic7000 service manual is here: https://sfc03cda1ecec4dfa.jimcontent.com/download/version/1533230316/module/4802171362/name/IC-7000_SM_5.pdf They are all

Apply a DC via a resistor to JHFOR, see if the power folds back and current drops Then you can work on it and trace 73 Andrew ?Get BlueMail for Android ?

All well and good, but there must be an O/C some where in the TX path! Or a S/C cap 73 Andrew ?Get BlueMail for Android ?

Hi Tommy again, Also looking at the block diagram, I can see the TX and RX share the LPF, which actually turns out to be Band Pass filters!! Fairly wide. How does the RF get to the filter board is

The power control will not reduce power if the forward power measurement circuit is not receiving power. As it is after the bandpass filters and that is where the problem seems to be. Currently the

Hi Tommy, Can you turn the power down on FM or CW to a few watts? This will help with signal tracing ?Get BlueMail for Android ?

Andrew Yes the current supply varies with usb modulation. That is why I put the mode to FM for the supply current test. The odd thing to me is that the supply current is substantially higher with

Hi, You need to find out if there is RF power being generated.? The current is a clue, so switch to USB key up you should draw a few amps bias current, the speak CQCQ ect, the current should peak in