Having a power supply issue
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Methen
- NEW DUCK
- Posts: 3
- Joined: September 2nd, 2016, 10:10 pm
Having a power supply issue
I have some old cb stuff I got when my brother in law passed away ago several years ago and it has been sitting in my shed for a long time, I brought it in to see if I could get it to power up, what I have is a gold series power supply ps 35 I think, and a emperor 5010 mobile, I plugged the power supply in first and it came right on and the needles pegged, so a summing it was I know very little about them, I turned it off and hooked up the radio on no antenna and no mic I just wanted to see if it would power on, But when I turned on the power supply the needles went to zero and the radio would not power on, when I took the radio off the power supply it worked as it did before with the needles pegging, I know the radio use to work when my brother in law had it any suggestions what may be going on, also does this radio use a hand mic that control the channels I was looking at a mic wiring guide and I notice 2 sittings for channel up and channel down ?
Last edited by Methen on December 12th, 2018, 9:21 pm, edited 1 time in total.
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Deleted User 30222
Re: Having a power supply issue
If your looking for a power supply. Search no more. You need a MegaWatt. I have one. And i bet several people do here as well. Check him out. And make sure you mention your a member here.
Check out our vendor [Please login or register to view this link]
Check out our vendor [Please login or register to view this link]
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Lost Ram
- Donor
- Posts: 1,094
- Joined: September 22nd, 2009, 8:46 am
- Handle: Lost Ram
- Real Name: Kerry
- Antenna: 570' Loop with 600 ohm open feed line
- Radio: Yaesu FTDX 101 MP / TRC-450
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Re: Having a power supply issue
Those are great supplies, I have 6 of them I use for my Ham radio gear and to power my only CB radio which is a Cobra 139. You cant go wrong with them and if something happens just call or email them, they are quick to get you taken care of.Beachbum24 wrote: December 12th, 2018, 9:15 pm If your looking for a power supply. Search no more. You need a MegaWatt. I have one. And i bet several people do here as well. Check him out. And make sure you mention your a member here.
Check out our vendor [Please login or register to view this link]
CB: TRC-450, Imax
Ham: FTDX101MP, FT-991A ,FT8900-2 meter crossband rig
Ham Antennas: 570', 500', wire loops, 2M Copper Slim Jim X2, CG-144 mobile
"The two enemies of the people are criminals and government. So let us tie the second down with the chains of the Constitution so that the second will not become the legal version of the first."
Thomas Jefferson.
Ham: FTDX101MP, FT-991A ,FT8900-2 meter crossband rig
Ham Antennas: 570', 500', wire loops, 2M Copper Slim Jim X2, CG-144 mobile
"The two enemies of the people are criminals and government. So let us tie the second down with the chains of the Constitution so that the second will not become the legal version of the first."
Thomas Jefferson.
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Lost Ram
- Donor
- Posts: 1,094
- Joined: September 22nd, 2009, 8:46 am
- Handle: Lost Ram
- Real Name: Kerry
- Antenna: 570' Loop with 600 ohm open feed line
- Radio: Yaesu FTDX 101 MP / TRC-450
- Contact:
Re: Having a power supply issue
Oh, I should add I have the S-400 units, best bang for the buck and you can parallel them to get more Amps too. Wish they made a 50 volt to use with my BLF188 amp.
CB: TRC-450, Imax
Ham: FTDX101MP, FT-991A ,FT8900-2 meter crossband rig
Ham Antennas: 570', 500', wire loops, 2M Copper Slim Jim X2, CG-144 mobile
"The two enemies of the people are criminals and government. So let us tie the second down with the chains of the Constitution so that the second will not become the legal version of the first."
Thomas Jefferson.
Ham: FTDX101MP, FT-991A ,FT8900-2 meter crossband rig
Ham Antennas: 570', 500', wire loops, 2M Copper Slim Jim X2, CG-144 mobile
"The two enemies of the people are criminals and government. So let us tie the second down with the chains of the Constitution so that the second will not become the legal version of the first."
Thomas Jefferson.
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Pioneer621
- Skipshooter
- Posts: 238
- Joined: October 7th, 2008, 8:35 am
- Handle: The field “Handle” must be completed.
- Real Name: aaa
- Radio: Megaphone
- Contact:
Re: Having a power supply issue
Perhaps post a photo of the power supply so we know exactly which Pyramid it is. Even inside photos of the board can help if you plan to try and repair it.
Assuming you connected it correctly, not wiring the radio backwards, or have shorted wires.
I'm guessing it is the older one since you said the model is PS-35 (is it PS-35G or just PS-35?). The PS-36KX schematic may be similar, but I don't know. At any rate, it is a linear style supply, uses the 723 regulator IC, likely a series pass driver of some sort driving a bank of pass transistors to handle the heavy current, probably one of the three items is dead, or a couple. and fairly easy to repair and generally common failures, really only need a digital multi-meter for repairing power supplies of this nature.
Are both meters pegging all the way to the right? Or just the DC Voltage? What is the exact reading each meter is showing when powered on and the radio disconnected?
I don't know the exact design of that particular unit (if you know the exact model, you may be able to find a schematic), but it may have a dead drive transistor. Although, these style supplies are fairly easy to repair even without a schematic.
Assuming you connected it correctly, not wiring the radio backwards, or have shorted wires.
I'm guessing it is the older one since you said the model is PS-35 (is it PS-35G or just PS-35?). The PS-36KX schematic may be similar, but I don't know. At any rate, it is a linear style supply, uses the 723 regulator IC, likely a series pass driver of some sort driving a bank of pass transistors to handle the heavy current, probably one of the three items is dead, or a couple. and fairly easy to repair and generally common failures, really only need a digital multi-meter for repairing power supplies of this nature.
Are both meters pegging all the way to the right? Or just the DC Voltage? What is the exact reading each meter is showing when powered on and the radio disconnected?
I don't know the exact design of that particular unit (if you know the exact model, you may be able to find a schematic), but it may have a dead drive transistor. Although, these style supplies are fairly easy to repair even without a schematic.
