The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

dxswe

Now is the radio up and running.The faulty was the final 1969

dxswe

Hallo I copy this from cbtricks board.Perhaps this helps. The "92.000" problem really has several possible causes. Only some of those will be found inside the shielded box containing the counter/clock display. But if the radio has no receive or transmit, I would predict that the counter is...

dxswe

Radio Make and Model: Lafayette Telsat 805B PCB Number:PTBM131A4X PLL Number: 02 Test gear available:Counter and multimeter Symptoms:No tx at AM/FM also SSB.And no RX at SSB only at AM/FM What is working:RX AM/FM What has been tried:Nothing Did it suddenly happen ?: Yes Anything else that may be of ...

dxswe

Radio Make and Model: President Lincoln
PCB Number:
PLL Number:
Test gear available:
Symptoms:No modulation on fm mode but tx carrier is fine.

What is working: Am/SSB

What has been tried: Adjust deviation VR105 but nothing happens
Did it suddenly happen ?:
Anything else that may be of help?:

dxswe

I think CRT had little trouble with that model.I think a capicator must be change in the little metal box.I don't remeber which it is.

dxswe

The buzzing noice comes from the inverter converts 3.5 Vdc to 150-170 VAC for the EL faceplate lighting.The invertes is a little metal box mounted at the left side (component side up)I think you must change a cap inside the metal box.Perhaps another can tell little bit more.

dxswe

Merry christmas and happy new radio year.

dxswe

Ok thanks for the answer

Jan

dxswe

Radio Make and Model: Lafayette Telsat SSB140 PCB Number: /PTBM058COX PLL Number: 02A Test gear available: Soldier iron.frequency counter Symptoms:Help with wiring a galaxy fc 347 to a lafayette telsat 140ssb What is working: What has been tried: Did it suddenly happen ?: Anything else that may be o...

dxswe

I think the fault is D53.The D53 is after L23.

dxswe

I had also own a SS 3900 CRT and the clarifier problem was the same with that radio.I used galaxy 77 hml service manual to realign my radio.The pcb board its very like the 3900 board.After my realignmemt the radio was much better.More stable on the ssb band. Rick is a very good tech.He had help with...

dxswe

What was the fault

dxswe

I have talked to my locals yesterday and they say the modulation sounded great now.I have decrease the output to 45 watts Pep. Hallo I wonder how much power in SSB band should I have min,med,max.My radio does have: Min:20 PeP Watt Med:35 PeP watt Max:50 Pep watt If I goes over 50watt in max power th...

dxswe

Hallo
I wonder how much power in SSB band should I have min,med,max.My radio does have:
Min:20 PeP Watt
Med:35 PeP watt
Max:50 Pep watt

If I goes over 50watt in max power the modulation sounded distored.I not have a scope to check the radio.

Best ragards Jan

dxswe

I wonder if its possible to have dual finals in SS3900.The pcb number is Ranger EPT360015C .The final transistor it's a mosfets IRF 520.
The pc board it's very like Galaxy HML 77 pc board.

http://www.cbtricks.com/radios/galaxy/d ... 4c_top.gif

dxswe

How to do the frequency expansion with new superstar 3900 with blue leds and blue s-meter.The pcb number is Ranger EPT360015C.

dxswe

Anyone who has it.

//Jan//

dxswe

I have done the SC2999 and 1N6263 mods in my Galaxy 95t2 with good results.The best thing to make noticed with this mod is when you have the radio installed in my car.But when you have your radio connect to a base antenna you make any different.I have realignment the S-meter with an rf-generator and...

dxswe

Here is a another one
http://www.electronix.com/catalog/advan ... 17&x=6&y=8

dxswe

Hallo
Here is a link to CB trick.
http://www.cbtricks.com/radios/rci/rci_ ... q_conv.htm

dxswe

This is a solution to modulation sound better at Fm is bypass the echoboard.It's very simple.Unplug J12 connector at the main pcb board then unplug J2 connector at the echoboard.Take J2 connector and plug to J12 at the mainpcb.The fm modulation sounded much better after the bypassing.When you have b...

dxswe

Hallo
My friend have a superstar radio which sounded muffled on Fm-band.I been heard that many others have the same problem.Is there any mods or other thing to solved it.

Best regards Jan

dxswe

Hallo Rick.I have replaced D150 it seem to be the faulty.Now is audio working
perfect

.I will thank you for your time to solved this problem many many thanks.I owe you are beer.

Jan

dxswe

Ok I will replaced it.Thanks again

Jan

dxswe

Hallo Rick.When I have un-solder the leg of D150 the audio and squelch working normal.I have also try Q60 R228 but then the audio is weak.

Jan

dxswe

I have check the voltage for D69 the leg whois un-solder to R62 is at min 0,0V and max 0,10V.

Jan

dxswe

Hallo Rick.I have un-solder one leg of D69 and now the audio is working normal also the squelch is working.Everything seem to work normal,can I have the leg of D69 un-solder or is that not good.What have D69 for function?

Jan

dxswe

Hallo Rick. I will try yours suggestion tomorrow.
Best regards Jan

dxswe

Hallo again Rick.I have check the voltage for R62 to IC 1 Pin8 min 0,62V and max 7,07V.I have also check the voltage for R62 to D37 min 0,83V max 3,91V.

Jan

dxswe

The base Voltage for Q44 is at min 0,63V at max 0,72V.So the voltage is to high for base at min I have 0,63 it sholud be 0,2 its that correct.

Jan

dxswe

D37 D69 is intact

dxswe

Sorry didn't you mean R62 instead of R63

dxswe

I have also check C189 it seem to be intact.

dxswe

I have the voltage for R232 to Q44 is min 0,63V and max 0,74V and the other results for R232 is min 0,8V max 3,92.I have also check C80 is still intact.

Jan

dxswe

Hallo again Rick.I have replaced Q44 but the audio is still weak.But if I un-solder collector of Q44 the audio is strong and normal

Jan

dxswe

Ok I should replace Q44 2Sc945.Very many thanks.

dxswe

I check the voltage for IC 1 pin 8 min 0,67V and max 7,10V.

dxswe

At min 0,63V at max 0,73V

dxswe

At min 0,32 V and max 7,32V

dxswe

Hallo.
I have re-solder the leg of Q44 and audio disapear but when I un-solder the leg of R232 the audio is normal again.
Jan

dxswe

I have re-solder the leg of R221 the audio i working but I haven't re-solder the leg of Q44 yet.

dxswe

Hallo again Rick.Did you mean I must re-solder the leg of R221 to test if the audio is ok .

dxswe

Hallo Rick.I have un-soldering the collector leg for Q44 and R221 now is the audio normal but the squelch is not working.I think we are near the problems
now.You are a great tech.Thank you Rick.Perhaps a cap is broken

Jan

dxswe

Hallo Rick.I have try the ANF board.I bypasses that you told me but the audio i still the the same.I think the ANF boarf is intact.

Jan

dxswe

The PA seem work great I have also check the C 175,179 is also ok.The problem is between AM detector and IC 8 pin 4.When the radio is cold an newstarted the recieve audio is normal after 1 minutes is fading away.The S-meter shows right I can hear people talk all that is normal but after a minutes th...

dxswe

Hallo I have a brandnew galaxyDX 2517 (EPF000210Z board) 1 months old .But today I noticed that I must have full volume on the radio so I can hear my locals talking.The radio have work great until this problem is occured.Sorry for my bad English.I hope some one can help me with this problem.Even whe...

The Defpom Forum, for RadioMods, S&M Software and Music by The Defpom

Search found 46 matches

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