Search found 357 matches

by ka7wnf
Thu Jan 27, 2005 3:54 pm
Forum: Kenwood Commercial Products
Topic: Kenwood Programming circuit
Replies: 3
Views: 4862

programmer

The 6 pin plug will fit in the 8 pin socket and program the radios just fine. I built a KPG4 with a 6 pin and used it on a TK860 with the 8 pin socket and it worked just fine.
by ka7wnf
Thu Jan 27, 2005 3:36 pm
Forum: Kenwood Commercial Products
Topic: TK-830 troubles
Replies: 13
Views: 12450

830

Fixed it! It was a bad cap in the control head. The spare head I used to check the radio had the same defect which steered me the wrong direction. (@#$^%%^!!!) C29 is a 22uf 16 volt electrolytic. It had leaked and corroded away the trace that goes from pin 4 of the 5 volt regulator to pin 72 in the ...
by ka7wnf
Mon Jan 03, 2005 8:29 pm
Forum: Kenwood Commercial Products
Topic: TK-830 troubles
Replies: 13
Views: 12450

830

It does act like a shorted cap. Today I turned it on after being under my desk for a week. It came on and worked fine for several minutes before going into shutdown. It acts like when the cap is charging it's okay until it's charged then it shorts. I do have a schematic so I'll start looking.
by ka7wnf
Sun Jan 02, 2005 12:34 pm
Forum: Kenwood Commercial Products
Topic: TK-830 troubles
Replies: 13
Views: 12450

830

I swapped control heads. The problem persisted. It acts like the CPU just shuts down.
by ka7wnf
Sun Jan 02, 2005 12:34 pm
Forum: Kenwood Commercial Products
Topic: TK-830 troubles
Replies: 13
Views: 12450

830

I swapped control heads. The problem persisted. It acts like the CPU just shuts down.
by ka7wnf
Sat Jan 01, 2005 4:18 pm
Forum: Kenwood Commercial Products
Topic: TK 730 programming help
Replies: 5
Views: 6822

730

I also have one of those Canadian radios. It was brand new still packed in the boxes and plastic wrap. Those are the low band split models, 136-156Mhz. Mine won't do over 158 either and that's just the way those are.
by ka7wnf
Sat Jan 01, 2005 4:10 pm
Forum: Kenwood Commercial Products
Topic: TK-830 troubles
Replies: 13
Views: 12450

830

It won't display program, it won't read or write. I have had some of these that forgot their programming but this one has me stumped. It shows the proper channel for maybe a second when first powered up then goes blank. If I reboot it it won't show anything. If I leave it off for a awhile it will ag...
by ka7wnf
Thu Dec 30, 2004 10:10 am
Forum: Kenwood Commercial Products
Topic: TK-830 troubles
Replies: 13
Views: 12450

830

Thanks for the tip, but that didn't work either. It won't display anything.
by ka7wnf
Tue Dec 21, 2004 5:26 pm
Forum: Kenwood Commercial Products
Topic: TK-830 troubles
Replies: 13
Views: 12450

TK-830 troubles

I have a TK-830 with the following problem. When first powered up the display is normal, with KCH-4 head. Shows the correct channel. After less than a second the display goes blank and only the backlight stays on. No transmit or receive. I swapped control heads and no change. I checked for voltages ...
by ka7wnf
Tue Aug 31, 2004 3:20 am
Forum: Kenwood Commercial Products
Topic: SUCCESS!! TK330 programmer works
Replies: 0
Views: 3116

SUCCESS!! TK330 programmer works

I got it working off a MAX232 circuit. If anyone wants a schematic let me know.
by ka7wnf
Mon Aug 30, 2004 1:43 pm
Forum: Kenwood Commercial Products
Topic: Kenwood TK 830
Replies: 6
Views: 7397

830

Are you using SP tune mode to enter ham freqs by chance? If so it will say model mismatch. Just ignore the error and proceed.
by ka7wnf
Mon Aug 30, 2004 1:41 pm
Forum: Kenwood Commercial Products
Topic: TK330 programmer
Replies: 0
Views: 3122

TK330 programmer

Anyone have a diagram for a programmer for the TK-230/330 portables? I built one from a schematic I found at mods.dk but the darn thing won't work.