开云体育

I recently acquired a very nice 450S at a Traverse City, MI swap. I began by having a classic problem with no audio, and traced it to the usual suspect audio coupling capacitor. That fixed the

I have been following this thread, so I thought I would take a look at the schematic and have come to the conclusion that Jordan is correct in his observation also. Good luck.

Ok... Given the voltages shown, I believe it's safe to say that those are RX voltages, followed by voltages in TX in parentheses...The 850S manual uses the same scheme... 73...Jordan VE6ZT

Bob, As an example, page 137 of my PDF copy of the service manual has several test points with two voltages shown. The second voltage is in parentheses. 73, Stan N6BYU Sent: Monday,

I looked at the PDF. I cannot find a "legend" that states what the voltages mean. Some voltages are in parenthesis??? It does say "tx" on some of them.Maybe Jordan can tell from his regular service

Stan, I'll have to break out my actual service manual rather than rely on the pdf version. I'm sure there is a legend somewhere but it's very time consuming to find in the pdf. I'm tempted to say

Jordan, I’m just now getting used to the layout of the service manual, so your pointers have saved me a lot of time and frustration. Any idea what the voltages in parentheses represent?

Here's a pic. Hope it goes through. Bob W4JFA

Stan, According to Item 2 of the TX Adjustment on pg. 124, you should measure ~10dBm minimum at CN-9 on the RF board. You should be able to connect your SA through a DC block across the output of

Using my spectrum analyzer, I placed an RF sniffer probe near the output connector of the of the HF amp board. I saw activity at the proper frequency, but at a very reduced level as compared to what I

Stan, the fact that 6m is working eliminates a lot of possible problems. I'd pull the HF drive cable to the HF amp/filter assembly and see if you have HF drive on that line when in TX. If you do have

This $9 Amazon wireless mouse works great with the DX10. https://www.amazon.com/gp/product/B005EJH6Z4/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 -- Craig Williams W6CAW

Thanks for all of the helpful replies! Jordan, I have some RF sniffer probes and a spectrum analyzer, so I will probe around and see what I find. All of the coax cables and other connectors seem to

First, I'd go through and check the small grey RF coaxial connections to ensure they are connected and connected to the right place. The service manual can help with that. Then I'd check that the

The reason I offered 850 pics is because there are similarities. Bob W4JFA [email protected]> wrote:

I looked and o have some pictures of the RF board that I can send you if you would like. Bob W4JFA

Maybe the small coax connections? I don't remember about the 850 but I know some radios do not use all the connectors so it's easy to get one plugged in wrong, or transpose a couple. I made that

Someone I know is selling a Kenwood TH-D7 for $225 plus shipping. I have a few questions. First, is this model easy to program from the front panel, or is it almost a must that you program it using a

And replying to my own post, the TS-690S did transmit at full power on the HF bands before I started taking it apart, so I’m thinking that I either misconnected something or failed to reconnect

I just picked up this TS-690S with a few known problems (mostly minor), including a broken 12 VDC power input connector shell. I found a replacement connector shell and swapped it in, but it required