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I intend to carry out the bi-colour LED lock mod on my FRG-7. Are there any detailed photos or diagrams showing where the 10v, 0v and led lock pickup points are.?

The website of monitor.co.uk shows some info but not sure where to get the 10v from and whilst it shows the 0v and led lock connections I'm not sure on which PCB they are.

There used to be a YouTube video from a ham in Finland (I think) which gave detailed instructions but can't find it.

Many thanks.
David G4EDR.?

Hello Fellows ,first of all thanks so much for the input ,might be best not to mess with the set ?,I see that there is not a lot of room on the board ,things are very close
?and I don,t want to do any damage , good advice if it ain't broke don,t fix it .I think I will ask Santa for a ESR capacitor checker so I can check condensers in?
circuit ,I pulled out the chassis and it looks very clean and no bulging caps, is it normal when you try to tune or find shortwave stations there is a noise between
?stations ,I call it a snow noise like the way TV's way back when made when there was no channel on at the time , just asking never had a shortwave radio like
?this before , only had old console floor models that had many bands on them ,loved those sets used to stay up late at night to see what I could tune in from
?far away, again thanks so much ,take care and stay safe all the very best Rick?

Hello Rick,

I have 2 FRG-7 from around the same year and until they are showing signs of problems I won't change the caps.

Also I don't believe that you have to do a re-alignment because most of the caps are used for DC buffering / filtering.

But of course I could be wrong on the last part.??

I agree with Phil. Transistor based radios operating on low DC voltage rarely have capacitor problems. The higher the voltage the more likely you are to have capacitor problems. It doesn't hurt to visually inspect the electrolytic capacitors and replace any that show leakage or bulging. The main problem with replacing all of the electrolytic capacitors is the cheap circuit board material used in almost all Japanese radios. The boards work OK for new assembly but not so much for repairs. The glue holding down the traces may let go if overheated. An ESR meter would be a good first non-destructive capacitor tester. There are also in circuit capacitor testers for further non-destructive testing.

73
Roger VE7LB

Hello Rick
I will defer to the experts, but if a radio is working fine then leave it alone.? Unfortunately it's a lesson I have learned the hard way.
Cheers, Phil

Hello fellows I picked up a 1976 Yaesu Musen FRG-7 this year from Dan in Quebec ,this unit seems to work fine but I was always told a unit this old should have
?the electrolytic caps changed, do you fellows think they should all be changed for new ones and if I get the kit and do it will I have to do a realignment ,I have no problem?
?changing the caps but if I have to do realignment better I leave it alone ,I am sure I could not realign it properly ,any advice fellows ,thanks so much for your?
?time all the very best Rick

Hi Greg,
If you are using a PC the Files section is near the bottom of the left pane.

73
Roger VE7LB

Hi. Trying to locate the FILES section. I was subscribed to the .io group, but don't seem be getting full access. I re-subscribed. Info says moderator approval not required. Will see if my first post approval get me access to FILES.
Tnx

I had to replace T101 in my FRG. The small winding (the one closer to the antenna input) turned out to be interrupted, so I couldn't receive any more in the A band. My attempts stopped a long time ago, so at present time I can't recall all the steps I made to set up a home-made replacement for that transformer. For sure I couldn't use the original tiny coil former. The main winding might even have broken off, while I was handling that delicate component. Both windings, in fact, were made of extremely thin enameled wire. I made my deductions concerning a possible value for the parallel inductance in the preselector (the main winding). I considered the frequencies involved for the A band and the maximum and minimum capacity the variable air capacitor may give, considering how it is used for the A band (I inspected the schematic). Signals on A band came back, but I had to face an imperfection: readings on preselector's scale after adjusting are not coherent with the received frequency readings. I asked for a test a friend of mine owns a FRG-7 as well. So I eventually concluded the mentioned behavior is not normal.

Has anyone here possibly faced and fixed the same issue?

So far I couldn't even find the service manual, but I suppose the alignment procedure for the preselector might be acting on the inductance to tune at the lowest frequency of A band, and acting instead on the trimmer capacitor to align the preselector around 1.6 MHz. I've in mind to get back to work with that receiver. Meanwhile, I tried to ask here, after realizing this is a new place for FRG-7 owners after the Yahoo Groups service was discontinued.

Thanks in advance!


A.

I uploaded part of a Fujisoku catalogue the Parts Database folder in the files section.? Fujisoku 8H2011 Rocker Switches as used in the FRG-7. See page 4. You may have to take a measurement as they show two red paddles of different lengths.

I took another look at eBay. See item 124299468972. It appears that the same seller has red switches. He also gives away the manufacturer in his pictures. The pictures show the red toggle removed from the switch. He might sell you just the red part. Google fujisoku switch and quite a few sites come up.

Hi Steve,
Look at eBay item # 124331786820. Two switches for $15. The only problem is that they are grey and black. You may be able to remove the red outer section and put it on the grey switch. That leaves the black one for use if that doesn't work.

73
Roger VE7LB

Hi Phil,
Thanks for the update. Glad to hear it is all sorted out and that you you are enjoying the FRG-7!

73
Roger VE7LB

Hi Roger

Just to close the circle on this.? My amateur friend restored the FRG-7 back to original spec viz the filter and discovered a dry solder joint on the IF board while he was at it.? Fixing that plus an alignment has it running better than ever.? It's great to have it back!? Thanks for replying.
73
Phil

Hi Phil,
It's hard to tell what's wrong from the two pictures. The only obvious thing is the bare copper wire not being grounded. It looks like it was under a screw head at one time. If that doesn't work pictures of the other ends of the four grey coaxes might help.

73
Roger VE7LB

Hello all

My FRG 7 had a filter mod done at some stage in its life and I need some help to work out how to wire it up properly.? It's a long story, but while recapping the radio the filter, which was wired into the mode switch, came adrift.? Completely operator error, but of course now I am having trouble now working out how to wire the filter back in.? I have attached two photos showing the filters.
Any help appreciated.? Radio works well, but is now deaf.

cheers, Phil