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Mine is not a KLV it is an RM Station 550 It uses two 2SC1407's the resistor is left side by the diode and transistor. if you bring up image then right click view image it will enlarge. here is a pic of the klv550 board lay out R20 and 30 are circled in red

I have an RM station 550 no KLV on it that sounds horrible on sideband but clean on AM i tried this fix but can not seem to make it sound good on SSB any ideas? This amp does not have R29 and 30 side by side. here is a photo of the amp and 2 scope snaps of modulation with the amp off and on. Any...

I know this is an old thread but hoping they guys are still around I have an RM station 550 no KLV on it that sounds horrible on sideband but clean on AM i tried this fix but can not seem to make it sound good on SSB any ideas? This amp does not have R29 and 30 side by side

~Fixed~ TR40 Was bad radio works perfect again

Check TR41 and 42 and do you have receive audio if so the audio amp is good then check TR36 and 38 should see 12 volts on tx in SSB mode and 6 volts on tx in AM mode

I sent in a 98vhp that 2 other shops had worked on and galaxy of cali just sent me a new 1 in the box and did the channel mod and alignment no questions asked before they shipped it to me.

Have a washington that may have took a lightning strike replaced some blown out caps shorted diodes the predriver driver and final and such it is working rx and tx but ssb audio is choppy and the TP7 wil not adjust or read any ma the TP8 will it is set to 35ma. Any ideas what to check on why it...

The mod on the bottom is a channel mod diy kit done by ralph on bay fasttrack*09

Low and behold i could use the instructions for a bb3 if you wouldn't mind

Any one got step by step for a galaxy n kit for an ar144 the kit instructions are horrible cant tell what they are doing with L13 looks like they are connecting the 2 center taps together but i only see one side that has 3 connections. thanks for any help

Any one got step by step for an ar144 the kit instructions are horrible cant tell what they are doing with L13 looks like they are connecting the 2 center taps together but i only see one side that has 3 connections. thanks for any help

p.s. it was on for an hour before measurements. Both radios good and bad also i do not know what prior owner did to it seeing i found some strange things like the yellow wire from the voice lock was not connected it was in the wire bundle from board to no where.

Let me clear this up on ch1 it will read 26.9649 ch 20 it will read 27.2049 to 50 hopping back and forth from 21 up it will read .xx50 like ch 36 27.3650 ch 40 27.4050. If you set ch 1 to 26.965 then it drives ch 20 and up 1 higher like ch40 27.4051

yes actual numbers but the voice lock was turned and for the purpose of this it does not matter what freq it is on just that the channel selector changes the freq of the tp by to much verses a known good radio 14 verses 2 that is enough to shift the channel off by one it shouldn't be doing that...

Off by one On a 2000 on channel 1 i get 27.2049 when you get to the change over channel say 21 it will read 27.4049 to .4050 then to channel 40 it will read XX50 the rest of the way. With that said here is the rest. So far this is what i found i have 2 rigs one is right on 1 to 40 the...

Any ideas where to look why a cobra2k gtl would be off by 1 example tuned up so that ch 20 reads xx.xx50 it will read 20 to 40 xx.xx50 and ch 1 to 19 will read xx.xx49. With one middle channel jumping back and forth 49 to 50. Thanks

Any one know or have a schematic of one of these i got a cap and a wire loose in mine. I can not seem to find any info on it/ Thanks

Dx-302 I have one that was on when a transmitter was keyed up close to it now it has distorted audio if the signal is over s2 any clues to what got cooked?

BTW Thank you Robb you got me looking in the right place from that PLL whacked statement when i found the broke off pin at board level.