Search found 18 matches

by Classic CB
Thursday 25th Jun 2009, 19:50
Forum: CB Radio General
Topic: Reace RS 107S Transceiver Test Master
Replies: 6
Views: 6289

Re: Reace RS 107S Transceiver Test Master

Hi Allen: Sorry it's taken so long to reply but been a bit busy, unfortunately the old timer who said you need Xtals for the Reace was right. The circuit inside the unit is a colpitts oscillator with tripler so for whatever channel you want to transmit a test signal on you need a xtal approximately ...
by Classic CB
Monday 22nd Jun 2009, 3:53
Forum: CB Radio General
Topic: Reace RS 107S Transceiver Test Master
Replies: 6
Views: 6289

Re: Reace RS 107S Transceiver Test Master

Hiya & thanks for the info: As far as I know you dont need Xtals to go in the front the 2 sockets are used for quick Good / Bad testing of Xtals, it won't tell you the actual Xtal fequency but will tell you if it's capable of sustaining oscillation. The bottom scale is marked Xtal: Good or ?, do you...
by Classic CB
Friday 19th Jun 2009, 8:20
Forum: CB Radio Repair and Troubleshooting
Topic: GE A35825B No TX
Replies: 29
Views: 13183

Re: GE A35825B No TX

Hi 222: Can't argue with that mate, seen it many times where Tech's have repaired a faulty radio by changing a non faulty component. As you said the problem was cold solder joints in the first place, a high power illuminated magnifier is a godsend on any bench for finding cold joints & even then you...
by Classic CB
Thursday 18th Jun 2009, 7:10
Forum: CB Radio Repair and Troubleshooting
Topic: GE A35825B No TX
Replies: 29
Views: 13183

Re: GE A35825B No TX

Hi Johnno: A 60MhZ scope is ideal for radio servicing work, try to get a good make such as Hitachi, Gould, Hameg, Tektronix etc as these are made to good spec. Also make sure you get the test probes, power lead & if possible the user manual for it. When looking at scopes on ebay look for scopes that...
by Classic CB
Wednesday 17th Jun 2009, 5:07
Forum: CB Radio Repair and Troubleshooting
Topic: uniden
Replies: 4
Views: 2824

Re: uniden

Hi: You say your pretty much the local Tech now, what test equipment do you have available to you ?? Do you have a good Digital meter & audio signal tracer or Scope ?? If not your going to seriously struggle. What is the component number next to the diode ? I don't have the CCT for this 1 only the 5...
by Classic CB
Wednesday 17th Jun 2009, 3:23
Forum: Tech Area
Topic: Need schematic for cobra 25ltd with TDA2003 audio chip.
Replies: 1
Views: 1920

Re: Need schematic for cobra 25ltd with TDA2003 audio chip.

Hi: Have you looked in the manuals section of www.cbtricks.com ?

Andy @ Classic CB
by Classic CB
Wednesday 17th Jun 2009, 3:19
Forum: CB Radio Repair and Troubleshooting
Topic: uniden
Replies: 4
Views: 2824

Re: uniden

Possibly the Audio output chip has had it, if you don't have the test gear to check it out your best bet is to take it to your local Tech.
If you open it up you may well do more damage to your radio.


Andy @ Classic CB
by Classic CB
Wednesday 17th Jun 2009, 3:15
Forum: CB Radio General
Topic: HIGH SWR WITH AMP ON
Replies: 4
Views: 3902

Re: HIGH SWR WITH AMP ON

Hi Lance: Only seen this once before, but i normally don't bother with aerials. If the magmount has a rubber boot fitted, take it off. also check that where the whip screws in you have nice shiny threads for contact. You may also have to increase your earthing to the antennae. Regards: Andy @ Classi...
by Classic CB
Wednesday 17th Jun 2009, 3:09
Forum: CB Radio General
Topic: Reace RS 107S Transceiver Test Master
Replies: 6
Views: 6289

Reace RS 107S Transceiver Test Master

Hi All: Picked 1 of these up from ebay at a good price, wondering if any of you nice people might have a user manual or Data sheet for it & if so could you email me a copy.

Thanks: Andy @ Classic CB (UK). :)
by Classic CB
Friday 5th Jun 2009, 23:30
Forum: CB Radio General
Topic: rig doctors
Replies: 1
Views: 2319

Re: rig doctors

Hi Tony: There are a few good books on CB repair around, but in the end a lot comes down to experience & the test equipment you have available to you. A lot can be done with a good Multimeter & dummy load but for really serious repair work you need a Scope, Frequency Counter & Signal Generator as a ...
by Classic CB
Friday 29th May 2009, 6:50
Forum: CB Radio Modifications
Topic: Uniden PRO 510XL mods??
Replies: 1
Views: 2496

Re: Uniden PRO 510XL mods??

Hi: I think the manuals, mod info etc for this radio can be found in the manuals section of www.cbtricks.com & can be freely downloaded from there.

Hope that helps: Andy @ Classic CB
by Classic CB
Thursday 28th May 2009, 3:04
Forum: CB Radio Repair and Troubleshooting
Topic: ranger 2950DX and delay on SSB?
Replies: 16
Views: 8563

Re: ranger 2950DX and delay on SSB?

Hi: Sorry missed the bit about it being a new radio when I first read your post, no problem with doing the job inside the Mic but make sure you don't leave the resistor legs bare to short out on anything. Slip a little sleeving over each 1 just to make sure.

Good Luck: Andy @ Classic CB.
by Classic CB
Wednesday 27th May 2009, 22:51
Forum: CB Radio Repair and Troubleshooting
Topic: ranger 2950DX and delay on SSB?
Replies: 16
Views: 8563

Re: ranger 2950DX and delay on SSB?

Hi: Believe me Ralfs way is the better way, if you try to fit the Resistor inside the Mic plug it's too fidly & very easy to short things out. If you do the Mod inside the Radio you have more room to work & it's easier to do. By the way this Mod does work i've had to do it on a few radio's. Andy @ C...
by Classic CB
Wednesday 27th May 2009, 22:45
Forum: CB Radio Repair and Troubleshooting
Topic: RCI 2950 non-DX, low output power, etc.
Replies: 2
Views: 2092

Re: RCI 2950 non-DX, low output power, etc.

Hi: I would be checking the output transistors & driver as a starter. Had 1 of these a while back where the output transistors had been changed for underrated types & had no thermal compound on them, exhibited very similar symptoms. Also make sure you check for dry solder joints around the RF stages...
by Classic CB
Wednesday 27th May 2009, 22:34
Forum: CB Radio Repair and Troubleshooting
Topic: GME Electrophone TX830N
Replies: 2
Views: 2626

Re: GME Electrophone TX830N

Hi Joe: 2 Things I would try first: 1) Try a dummy load / Light connected to the Antennae socket, when you key up this will show if you actually have any TX by lighting brightly when you key up, if not then it's Tech time. 2) For the power meter problem then try gently tapping the PCB with the handl...
by Classic CB
Thursday 21st May 2009, 4:07
Forum: CB Radio Modifications
Topic: Blown Final side-effects?
Replies: 1
Views: 1669

Re: Blown Final side-effects?

Unfortunately you probably caused more damage by not having it fixed when you first noticed the problem, sounds like it's time to take it to a GOOD radio engineer.

Andy @ Classic CB
by Classic CB
Tuesday 19th May 2009, 5:44
Forum: CB Radio Repair and Troubleshooting
Topic: Frequency counter problem
Replies: 8
Views: 8245

Re: Frequency counter problem

Hi: Does the Frequency change when you move the selector? If not then this would point to a PLL or Power supply fault. Check the voltage on pin 9 of the MB8734 PLL chip, it should be 8v DC if not then this points to a power supply fault & you should check the MB3756 regulator etc. Apparently this is...
by Classic CB
Sunday 17th May 2009, 6:25
Forum: Tech Area
Topic: NOS Components Parts .
Replies: 1
Views: 2037

Re: NOS Components Parts .

Hi: I know this post is a few weeks old but can you tell me if you still have the parts for sale please, if so how much & what would be the carriage to the UK?

My email address: restorer@tesco.net

Thanks: Andy. :)

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