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Pages: [1] 2 3 4 5 6 ... 13 Next
1  eHam Forums / Mods And Repairs / 2SC2785 E49F and 2SC2785 K4XF transistor type? on: April 11, 2013, 05:50:30 AM
Hi!

What does it mean on second row on booth transistor?Exact type of booth transistor?

C2785
E49F

C2785
K4XF

Thanks
                Zoli
2  eHam Forums / Mods And Repairs / RE: IC-471 SQL problem on: April 02, 2013, 10:02:02 AM
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
3  eHam Forums / Mods And Repairs / IC-471 SQL problem on: April 01, 2013, 02:41:37 AM
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



4  eHam Forums / Mods And Repairs / RE: Who had problem with VHF(S-AV17 or other type) 144Mhz hibride module? on: January 26, 2013, 06:40:36 AM
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
 



5  eHam Forums / Mods And Repairs / Who had problem with VHF(S-AV17 or other type) 144Mhz hibride module? on: January 25, 2013, 11:34:38 AM
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
6  eHam Forums / Mods And Repairs / S-AV17 final modul difference between S-AV17K1 and S-AV17K2 and S-AV17K3 on: January 23, 2013, 05:11:18 PM
Hi!

What is difference between S-AV17 and S-AV17K1 and S-AV17K2 and  S-AV17K3..?

Thanks
             Zoli
7  eHam Forums / Mods And Repairs / Kenwood MC-44 mike on: January 23, 2013, 03:21:14 PM
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
8  eHam Forums / Mobile Ham / Kenwood MC-44 mike on: January 23, 2013, 03:20:28 PM
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
9  eHam Forums / Mods And Repairs / Kenwood TM-731E power problem on: January 16, 2013, 03:24:36 PM
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


10  eHam Forums / Mods And Repairs / IC-04E trimmer on: November 19, 2012, 05:55:56 AM

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


11  eHam Forums / Mods And Repairs / Icom IC-04E on: November 09, 2012, 04:23:01 AM
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
12  eHam Forums / Antennas and Towers and more / RE: YAESU ROTATOR MYSTERY on: October 31, 2012, 12:08:27 PM
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
13  eHam Forums / Antennas and Towers and more / Yaesu G-1000DXC proble on: October 31, 2012, 09:32:17 AM
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
14  eHam Forums / Mods And Repairs / IC-820H IC-821H on: October 29, 2012, 04:19:31 PM
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
 
15  eHam Forums / Mods And Repairs / RE: Sanyo 1.2V NICD akku 26mm X 30.5mm on: October 09, 2012, 10:56:54 AM
Hi!

I wrote same e-mail to batterygiant.com but I didnt get any answer.

1.Can you ask it by e-mail for datasheet for this akku?

2.Fast charging is possible with 1A?

3.Shipping cost to Hungary?Possible?

Thanks
               Zoli


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