| Author |
Message |
    
Bbmfic
Intermediate Member
Username: Bbmfic
Post Number: 126
Registered: 1-2003
| | Posted on Wednesday, April 10, 2013 - 7:02 pm: | 
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i just got a new jackson from here & was wondering if anyone knows how to tie the fine & course clarifier together or any other mods to this radio thanks in acvance for any help |
Sonoma
Intermediate Member
Username: Sonoma
Post Number: 254
Registered: 11-2001
| | Posted on Thursday, April 11, 2013 - 12:27 am: |
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remove D58 from PCB.
remove yellow wire from pcb and solder to cathode of D69 or to a 8 volt source at the front of the board.
remove the white wire from the PCB and solder it thru a 470 ohm resister to ground.
realign the radio.
increased swing mod.
add a jumper to the cathode of D55 to TR36 the base leg which is towards the rear of the radio. lift one leg of R179. this is a controlled carrier mod and will give you more swing.
remove the capacitor that is soldered across TR36
and discard
cathode of D55 is the banded end.
do you have the alignment procedures for the jackson radio? it is the same for the JA version |
Sonoma
Intermediate Member
Username: Sonoma
Post Number: 255
Registered: 11-2001
| | Posted on Thursday, April 11, 2013 - 12:43 am: |
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forgot to tell you the 2 wires you take loose and resolder are off the fine clarifier. |
Sonoma
Intermediate Member
Username: Sonoma
Post Number: 256
Registered: 11-2001
| | Posted on Thursday, April 11, 2013 - 12:47 am: |
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one other mod to give more audio to AM is to
change R258 to a 1.5K ohm resister and change R261 to a 4.7K resister. this mod was worked up by Rick Jackson from Euro radio. |
Bbmfic
Intermediate Member
Username: Bbmfic
Post Number: 127
Registered: 1-2003
| | Posted on Thursday, April 11, 2013 - 5:24 pm: |
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thank you very much for all of your help if you know of any more let me know thanks again |
Bbmfic
Intermediate Member
Username: Bbmfic
Post Number: 129
Registered: 1-2003
| | Posted on Friday, April 12, 2013 - 8:43 am: |
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i just got my new jackson last night when i pluged it in & turned it on it had the freq mod. done to it i wanted a 10 meter radio i didnt ask for or pay for the mod or anythin else done to it to be done im not sure what is going on but it looks like i got someones return i paied for a new radio im not sure what is going on but its just not right |
Sonoma
Intermediate Member
Username: Sonoma
Post Number: 257
Registered: 11-2001
| | Posted on Friday, April 12, 2013 - 9:22 am: |
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let us know how the mods go for you. if you have trouble finding R258 it is by the diode D55 and it stands up there and R261 is by VR11. these 2 make a noticable difference in the audio out on AM. mine would only do about 75% mod on am and the resister changes kicked it up to 95 to 100%. I left the limiter intact also.
Rick Jackson came up with this to increase the AM audio and it worked great. |
