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eHam Forums / Mods And Repairs / RE: IC-471 SQL problem
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on: April 02, 2013, 10:02:02 AM
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Hi all!
Thanks for it but I think it is other problem. IC-9A is SQL IC for SSB (4558) on pin 1 voltage is 0.98V,after same minutes 1.5V. I replaced IC to new one and C225 2.2microF electrolit capacitor also replaced but after replacement same problem.
Thanks Zoli
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3
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eHam Forums / Mods And Repairs / IC-471 SQL problem
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on: April 01, 2013, 02:41:37 AM
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Hi!
SQL open at 8 clock and close at 9 clock position . After 10 minutes open at 9 clock and close at 10 clock position . After 20 minutes open at 10 clock and close at 11 clock position . After 30 minutes open at 11 clock and close at 12 clock position .
Sometimes open at 9 clock,closed at 3 clock position. Sometimes SQL always open in all position of SQL pot,never closed.
1.Why is difference between open and close position?
2.Why changing the difference between open and close position?
Thanks Zoli
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4
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eHam Forums / Mods And Repairs / RE: Who had problem with VHF(S-AV17 or other type) 144Mhz hibride module?
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on: January 26, 2013, 06:40:36 AM
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Hi!
I opened covers of final module !
My S-AV17 result with multimeter in diode position: 3. Tranzistor 1 : > > Bazis und Ground is .021 > Ground und Bazis is .021
> Bazis(black) und Collector(Red) .878 > Bazis(red) und Collector(black) .639
> Collector(black) und Ground(red) .639 > Collector (red) und Ground(black) .852
> Tranzistor 2 : > > Bazis und Ground is .017 > Ground und Bazis is .017
> Bazis(black) und Collector(Red) from .350 until 1.750 increase and after stop > Bazis(red) und Collector(black) from .350 until .490 increase and after stop
> Collector(black) und Ground(red) from .350 until .470 increase and after stop > Collector (red) und Ground(black) from .350 until 1.750 increase and after stop If you have time please send me your test result for S-AV17 modul.If module died no problem,maybe only broken trace and transistor is works and possible to control with multimeter. I like to know that my module test is normal value or not?
Thanks Zoli
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5
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eHam Forums / Mods And Repairs / Who had problem with VHF(S-AV17 or other type) 144Mhz hibride module?
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on: January 25, 2013, 11:34:38 AM
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Hi!
1.I like to know that module problem(S-AV17) or not if module has only 40W at 13.5V if hi power set pot is in max position?
I heard the module broken inside and will be no power output.I dont interesting for comment when modul totally dead because it is 100% module problem.I am interesting only when module damaged a little and dont work 100%.Who realised that?
2.Who had this kind of failure when modul has only 10W or 20W or 30W or 40W instead 60W total on 144Mhz band? My module is not broken inside!
Thanks Zoli
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7
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eHam Forums / Mods And Repairs / Kenwood MC-44 mike
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on: January 23, 2013, 03:21:14 PM
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Hi!
1.How can I fix electret caps in mike?Now is nothing around electret caps,1-2mm moving.
2.Who can send me picture from original one?
Thanks Zoli
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8
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eHam Forums / Mobile Ham / Kenwood MC-44 mike
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on: January 23, 2013, 03:20:28 PM
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Hi!
1.How can I fix electret caps in mike?Now is nothing around electret caps,1-2mm moving.
2.Who can send me picture from original one?
Thanks Zoli
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9
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eHam Forums / Mods And Repairs / Kenwood TM-731E power problem
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on: January 16, 2013, 03:24:36 PM
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Hi!
1.I have now TM-731E. I realised that on 144Mhz band the power output is only 35W and 7.5A (13.2V on modul on pin3 at TX) in hi position.VR2 pot(hi power set) is in max position. Normally power output is 50W. Is it S-AV17 module failure?
2. Q2 driver transistor is 2SC2538-09A-A in my radio.On schematic and on service manual is 2SC2538-22A.Why?What is difference?
3.Who can see this transistor in transceiver on 144Mhz final unit?
Thanks Zoli
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10
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eHam Forums / Mods And Repairs / IC-04E trimmer
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on: November 19, 2012, 05:55:56 AM
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Hi all!
I like to ask you:
How can I set following trimmer capacitor in PLL: C203,C206,C208,C216,C218 ?
I didnt find it in service manual.
Thanks Zoli
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11
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eHam Forums / Mods And Repairs / Icom IC-04E
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on: November 09, 2012, 04:23:01 AM
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Hi all!
I have two IC-02E,one has CPU reset switch on main board(older version),other(newer version) has no this CPU reset switch on main board. 1.I like to know that IC-04E also has two different type or only older version?Older has switch on main board,newer no?
2.Older version has no PA shield plate? Thanks Zoli
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12
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eHam Forums / Antennas and Towers and more / RE: YAESU ROTATOR MYSTERY
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on: October 31, 2012, 12:08:27 PM
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Hi!
Did you find where was a problem?In rotator or in controller?Any suggestion?What can I measure in controller with multimeter if ccw or in cw position?Pin number?
I have same problem with Yaesu G-1000 rotator.
Thanks Zoli
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eHam Forums / Antennas and Towers and more / Yaesu G-1000DXC proble
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on: October 31, 2012, 09:32:17 AM
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Hi all!
I have Yaesu G-1000DXC for 2 years. I realised now this problem:
If antenna direction is 0,controller pointer shows 0 no difference If antenna direction is 110 degrees,controller pointer shows 90 , difference is 20 degrees If antenna direction is 215,controller pointer shows 180 , difference is 35 If antenna direction is 315,controller pointer shows 270 , difference is 45 If antenna direction is 450,controller pointer shows 390 , difference is 60
Controller pointer doesnt show more than 390.Earlier was normal Any suggestion? Where is a problem?
Thanks Zoli
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eHam Forums / Mods And Repairs / IC-820H IC-821H
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on: October 29, 2012, 04:19:31 PM
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Hi all!
1.Who you tell me that IC-820H has only rubber button in front side or only hard plastic button? 2.Who you tell me that IC-821H has only rubber button in front side or only hard plastic button?
3.Better rig?
Thanks Zoli
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