Thanks Roger, just grabbed it!

I have a 46 inch flat panel monitor, which makes it very easy for me to zoom in and out and navigate the large jpeg image, which I do indeed prefer to the pdf version (I have Adobe reader).

I don't believe I'll need to print it out, as that is a little more difficult with these old eyes.? It reminds me of a folded schematic I have that goes with one of my old Galaxy V transceivers.? It's about 2 1/2' tall and 4' wide, so I had to hang it in front of me and it sure took up a lot of real estate! ??

The saga of my hard of hearing EX model continues.? I checked out the bulb fuse and it was fine.? I then removed the HF board, cleaned the edge connector and and RF mosfet? (3N211) socket and still weak receive.? Then, following a well made YouTube video, checked the? mosfet with a DMM and it seemed to respond well, so I guess I won't need to replace it.? I suppose now it's time to jump in with both feet and follow the signal path after I read up a little more on how it's processed.

For anyone reading this who'd like to chime in, here's where I am so far.? with a small length of wire in the antenna socket, I can barely hear my signal generator on 7.100 with no S meter movement.? When I connect the sig gen directly to the wire, it gets much louder and the S meter moves up about halfway.? The VFO seems to work fine and is accurate, as I can tune back and forth.? However, turning the preselector has zero effect in the volume or meter movement, so something is amiss there.? I'll probably post this on the Facebook group as well.? I know I'm not the first one to go down this road...haha!

Thanks Roger and everyone,

Richard kn7sfz

On 2/3/2023 9:56 AM, Roger VE7LB wrote:

Hi Richard, I suppose that you don't have a good pdf reader as the FT-101E_Late_Schematic.pdf in the files section is high res 11 x 30 inches. I just added a jpeg version of the same file in the same folder. You could put the pdf version on a usb stick and take it to one of the printers (Kinkos?) and get a full 11 x 30 inch printed.

73
Roger VE7LB group owner

Hello Richard - good you got to the bottom of problem.? I am interested in the subject; can you post a copy of the circuit diagram highlighting the semiconductor you replaced?? May help me to cure my own hard of hearing 101Z
Alistair (Al) GM4ENF

Hi Alistair,

I tried to find a quality manual for your 101Z online but they are all low resolution, however it is obvious that your RF board is different from the one in the FT-101EX. The good news is that their RF MOSFET amplifiers are basically the same, yours being the 3SK51 and mine the 3SK40, either of which can be replaced by the $6 NET 454 off Amazon, which I used to bring mine back to life.

I have attached a high res copy of the 101E schematic and you can see the 3SK40 transistor in the outlined PB-1181 RF board.? Sorry, I have no way of highlighting it.? It is socketed, so that made replacement quite easy.? I'm sure the transistor is socketed in your board as well.? Great care must be taken that you get each of the four leads in their proper place when installing the new transistor...very difficult for these old eyes, even using a magnifying visor.

Good luck on your project and hope to hear of your success,

Richard kn7sfz

On 2/13/2023 8:16 AM, Alistair GM4ENF via groups.io wrote:

Hello Richard - good you got to the bottom of problem.? I am interested in the subject; can you post a copy of the circuit diagram highlighting the semiconductor you replaced?? May help me to cure my own hard of hearing 101Z
Alistair (Al) GM4ENF

On Feb 14, 2023, at 8:25 PM, Richard kn7sfz <kn7sfz@...> wrote:

Alistair, I see the schematic attachment didn't make it intact, so if you'd like to send me an email direct, I'll get it to you.? It is 6 megs, so hope your email provider can handle that.

Richard?

kn7sfz@...

On 2/13/2023 5:00 PM, Richard kn7sfz via groups.io wrote:

Hi Alistair,

I tried to find a quality manual for your 101Z online but they are all low resolution, however it is obvious that your RF board is different from the one in the FT-101EX. The good news is that their RF MOSFET amplifiers are basically the same, yours being the 3SK51 and mine the 3SK40, either of which can be replaced by the $6 NET 454 off Amazon, which I used to bring mine back to life.

I have attached a high res copy of the 101E schematic and you can see the 3SK40 transistor in the outlined PB-1181 RF board.? Sorry, I have no way of highlighting it.? It is socketed, so that made replacement quite easy.? I'm sure the transistor is socketed in your board as well.? Great care must be taken that you get each of the four leads in their proper place when installing the new transistor...very difficult for these old eyes, even using a magnifying visor.

Good luck on your project and hope to hear of your success,

Richard kn7sfz

On 2/13/2023 8:16 AM, Alistair GM4ENF via groups.io wrote:

Hello Richard - good you got to the bottom of problem.? I am interested in the subject; can you post a copy of the circuit diagram highlighting the semiconductor you replaced?? May help me to cure my own hard of hearing 101Z
Alistair (Al) GM4ENF

A simple way to send big files for free is wetransfer.com. ? ?It is free up to 2 GB and very easy to use. ?Just drag the image onto the page put in the send and receive email address and push a button. ?For security they often send a security code to your email address.

It sends the addressee an email when it is ready to download.

—碍别苍辞濒颈

On Feb 14, 2023, at 8:25 PM, Richard kn7sfz <kn7sfz@...> wrote:

Alistair, I see the schematic attachment didn't make it intact, so if you'd like to send me an email direct, I'll get it to you.? It is 6 megs, so hope your email provider can handle that.

Richard?

kn7sfz@...

On 2/13/2023 5:00 PM, Richard kn7sfz via groups.io wrote:

Hi Alistair,

I tried to find a quality manual for your 101Z online but they are all low resolution, however it is obvious that your RF board is different from the one in the FT-101EX. The good news is that their RF MOSFET amplifiers are basically the same, yours being the 3SK51 and mine the 3SK40, either of which can be replaced by the $6 NET 454 off Amazon, which I used to bring mine back to life.

I have attached a high res copy of the 101E schematic and you can see the 3SK40 transistor in the outlined PB-1181 RF board.? Sorry, I have no way of highlighting it.? It is socketed, so that made replacement quite easy.? I'm sure the transistor is socketed in your board as well.? Great care must be taken that you get each of the four leads in their proper place when installing the new transistor...very difficult for these old eyes, even using a magnifying visor.

Good luck on your project and hope to hear of your success,

Richard kn7sfz

On 2/13/2023 8:16 AM, Alistair GM4ENF via groups.io wrote:

Hello Richard - good you got to the bottom of problem.? I am interested in the subject; can you post a copy of the circuit diagram highlighting the semiconductor you replaced?? May help me to cure my own hard of hearing 101Z
Alistair (Al) GM4ENF