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Hi Steve It is not conclusive that they are connected from that data sheet. It may be that the tag is for heat transfer only and in this case is soldered to ground merely for that reason. If you could

Hi Neil Thank you, again. The DC conditions on the gate and drain are consistently OK - regardless of whether the fault is present. With the FET still on the board, both the source and the tab are

Hi Steve I have had a look in the manual at the board, there are resistors on underside and mostly RF path on topside from what I can see. Can you indicate where you are putting pressure on the board,

Hi Steve There are 2 voltages 2.81V and 8V mentioned on circuit diagram. The 2.81V appears as a voltage divider and feeds gate through a resistor and the 8V appears at drain through a couple of

Neil ZL3ADC: Thank you. I'll do the fan modification once the rig is working again. To All: Regarding the pre-driver device *Q102* , RD01MUS1.? ?This device seems to be most sensitive to tweaks of

Hi Steve Yes plated through holes could also be an issue, I have seen where a track has cracked very close to donut on one side of plated through hole, very hard to see. I have also seen plated

Hi Steve There are two fan mods.this is the one I did. Contact author: M3SVO !! IF YOU ARE UNSURE ABOUT PERFORMING THIS MOD DON’T!! !!IF YOU DAMAGE YOUR RADIO YOU ONLY HAVE YOURSELF TO BLAME!! I

Hi Neal I'm very grateful to you for your thoughts.? ?I have never used freeze spray, but I have heard good things about it when used for investigating intermittent faults.? I have now ordered a

Hi Steve I have not seen this fault personally. I am an ex radio technician of many years. And I own a IC7000 myself. From what you have described, I suggest the fault is more likely physical than

*IC-7000: Intermittent Loss of Pre-Driver signal* I've owned my IC-7000 for about three weeks, and it's now got an intermittent transmit fault affecting all bands. The fault can be made to come and

My IC-7000 is for sale. Includes new separation kit. Please email kc9c at yahoo for more information. Mark KC9C

Interesting question, could anyone find information about the values ??of the IC-7000 Main Board L701 Transformer, the coil itself can't be found anywhere, so you have to do it if you don't happen

Hi Geoff While I wait for the parts to come in I thought to apply the recommended mods Also the pre driver transistor heat issue seems to be another issue with this radio James

These cables are often handled inappropriately and the connecting end can lift the track When pushed incorrectly into the pcb connector. Yes, I would add the gate resistor for sure. It's seems to be

Hi Geoff yes they are in a bad state - found bent contact strips on all cables. these cables are pretty weak and not well made. I decided to pull the unit apart to check the driver board which is the

Save the old, bad one. I’ll bet the connection was broken where you had the photo. Should be an easy fix and you have a spare. Tage

Congratulations. ________________________________ Sent: Wednesday, November 13, 2024 9:47 To: [email protected] <[email protected]> Subject: Re: [ic7000] shut down / restart on keying, now no

Hello all, Problem solved. I replaced the power supply cables and rig powered on. Thanks for all your help! 73, Colin N2TQT

Good move. These cables can produce weird faults if they are handled poorly. Make sure the small backup strip is in place on the new cables. Looks like someone has been inside this radio

Just an update- still waiting for IC551 to arrive. I had a look at the ribbon cables and they are not in the best condition so I ordered a new set from icom today - 60aud for 5 cables including gst