|
Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment. |
|
Thread Tools |
23rd May 2018, 1:48 pm | #1 |
Retired Dormant Member
Join Date: Oct 2014
Location: Northamptonshire, UK.
Posts: 20
|
Calling on knowledge for a Ferguson 3425 record player.
Hello
I need some advice/help on a ferguson unit. I have a few issues.. firstly regardless of which speaker I plug in the left channel is a lot lower in volume than than the right. the radio only picks up bbc4 When you try to use the turntable there is an awful loud noise that doesn't stop I have attached an image of the underside of the deck and there seems to be a wire loose which I'm guessing what earths it and which is why there is the noise? Here is a video of the 'noise' problem. https://youtu.be/gtFSPY4ZB74 and lastly there is a random loose spring (also attached a picture) I have fixed smaller portable record players before - but this unit is far more complex than anything I have worked on - so I'm looking for advice before I even start ti tackle it. |
23rd May 2018, 2:02 pm | #2 |
Dekatron
Join Date: Aug 2013
Location: Wigan, Greater Manchester, UK.
Posts: 9,427
|
Re: calling on knowleged for a ferguson record player
The mains power cable in the first photo looks lethal, attend to safety before anything else.
__________________
Frank |
23rd May 2018, 2:06 pm | #3 |
Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,820
|
Re: calling on knowleged for a ferguson record player
...or is that an old bit of mains cable being used as the signal cable?!
More pictures, please. |
23rd May 2018, 2:09 pm | #4 | |
Nonode
Join Date: Aug 2015
Location: Cambridge, Cambs. UK.
Posts: 2,196
|
Re: calling on knowleged for a ferguson record player
Quote:
Does look like one or more of those connections is dodgy though. Martin
__________________
BVWS Member |
|
23rd May 2018, 2:11 pm | #5 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,192
|
Re: Calling on knowlege for a Ferguson record player.
That wiring is an absolutely appalling mess. Look at the way the white wire is routed round the others.
Looks like old mains cable is being used to carry low level signals. Replace it, preferably with some screened stuff. Attend to the obvious things first. What's the model number or name?
__________________
Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
23rd May 2018, 2:25 pm | #6 |
Dekatron
Join Date: Sep 2015
Location: Southwold, Suffolk, UK.
Posts: 8,302
|
Re: Calling on knowlege for a Ferguson record player.
Sounds like there is some RF breakthrough as well. Plugging in different speakers is unlikely to restore volume to the LH channel, it is liable to be an amplifier fault. In the meantime, how experienced are you in troubleshooting and measuring voltages and values?
__________________
Edward. |
23rd May 2018, 2:46 pm | #7 |
Retired Dormant Member
Join Date: Oct 2014
Location: Northamptonshire, UK.
Posts: 20
|
Re: Calling on knowlege for a Ferguson record player.
agreed - the wiring is shocking and in very bad shape
I have attached some more images of the underside I cant see a model of the actual record player it just says 'ferguson unit audio fm stereo' on the badge the actual record deck is a Garrard SP25MKII thanks for all the replies so far! |
23rd May 2018, 3:21 pm | #8 |
Dekatron
Join Date: Aug 2013
Location: Wigan, Greater Manchester, UK.
Posts: 9,427
|
Re: Calling on knowlege for a Ferguson record player.
Must admit I thought it was the mains wiring but yes I can see it likely is for signal.
Still two mains cables coming out of the unit, the other for the motor, the wrong one could easily be connected by someone not conversant with it.
__________________
Frank |
23rd May 2018, 4:31 pm | #9 |
Dekatron
Join Date: Sep 2003
Location: Near Swindon, North Wiltshire, UK.
Posts: 3,595
|
Re: Calling on knowlege for a Ferguson record player.
A photo of the complete Fergusn unit would greatly assist in identifying it. In addition, Ferguson usually printed the model number on the back cover, and a small white rectangular plastic label, visible from the outside. The model numbers for their “Unit Audio” range usually have four digits, beginning with 34xx.
|
24th May 2018, 1:16 am | #10 |
Dekatron
Join Date: Aug 2006
Location: Madrid, Spain / Wirral, UK
Posts: 7,484
|
Re: Calling on knowledge for a Ferguson record player.
In the name of all that is holy...in three and a half decades collecting and repairing this kit, I've never seen wiring that bad! How on earth do you mangle something that much?!
If you don't have any suitable cable to hand, just get a RCA-RCA lead from a pound shop and cut the plugs off one end. Strip and solder the wires to the tag strip (all the 'earth' shielding can probably be connected to the inner three tags as at present).
__________________
Regards, Ben. |
24th May 2018, 7:19 am | #11 |
Dekatron
Join Date: Jul 2008
Location: Kington, Herefordshire, UK.
Posts: 3,658
|
Re: Calling on knowledge for a Ferguson record player.
Ye gods! I haven't seen anything like that since the Studer somebody attacked with a gas poker...
|
24th May 2018, 8:40 am | #12 |
Hexode
Join Date: Jul 2010
Location: Royal Berkshire, UK.
Posts: 470
|
Re: Calling on knowledge for a Ferguson record player.
As Ben has mentioned, obtain some screened cable & replace the rotten lead on the turntables audio output tag strip, plus a general tidy-up of the original tag strip tone arm wiring.
Sounds like some switch cleaner is needed on the switchbank & potentiometers to stop the crackling. The amplifier being quieter in one channel than the other, most likely the negative feedback electrolytic (could also be dirty switches or pots). Replace both left & right negative feedback capacitors, if ones going, the other won't be far behind. Check the input & interstage decouplers too. If you have a 'scope & sig-genny, it'll make life a bit easier. Mark |
24th May 2018, 9:04 am | #13 |
Dekatron
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,550
|
Re: Calling on knowledge for a Ferguson record player.
Someone who knows nothing and uses a poker as a soldering iron (soldering in the loosest possible term)!!
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman..... |
24th May 2018, 9:16 am | #14 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,528
|
Re: Calling on knowledge for a Ferguson record player.
Looks like the eponymous DPO has been at it big time.
(D****d Previous Owner)
__________________
....__________ ....|____||__|__\_____ .=.| _---\__|__|_---_|. .........O..Chris....O |
24th May 2018, 9:46 am | #15 |
Dekatron
Join Date: Jul 2008
Location: Kington, Herefordshire, UK.
Posts: 3,658
|
Re: Calling on knowledge for a Ferguson record player.
Either he or the Phantom Bodger so beloved of Radiophile!
|
24th May 2018, 12:31 pm | #16 | |
Retired Dormant Member
Join Date: Oct 2014
Location: Northamptonshire, UK.
Posts: 20
|
Re: Calling on knowledge for a Ferguson record player.
Quote:
there are a lot of circuit boards - this thing is a beast also I can not find any model number (i did look the first time) Please see attached for new images of full unit and here is a short video of all the boards https://youtu.be/anH7tYi_c_0 |
|
24th May 2018, 12:35 pm | #17 |
Moderator
Join Date: Jan 2003
Location: Ipswich, Suffolk, IP4, UK.
Posts: 21,192
|
Re: Calling on knowledge for a Ferguson record player.
Simple things first!
Fix the wiring to the arm. Work the balance control back and forth, applying Servisol if possible. Swop over the channels at the cartridge to see if the low output fault moves to the other channel which would indicate a cartridge or stylus fault.
__________________
Graham. Forum Moderator Reach for your meter before you reach for your soldering iron. |
24th May 2018, 12:39 pm | #18 |
Dekatron
Join Date: Apr 2011
Location: Cornwall, UK.
Posts: 13,454
|
Re: Calling on knowledge for a Ferguson record player.
For the model number it might be Ferguson 3425.
Lawrence. |
24th May 2018, 12:42 pm | #19 |
Dekatron
Join Date: Aug 2013
Location: Wigan, Greater Manchester, UK.
Posts: 9,427
|
Re: Calling on knowledge for a Ferguson record player.
There is a white piece of paper near the loudspeaker sockets with the model and serial number, the serial number is in big numbers, cannot quite read the model but should be clear when looking at it in front of you.
Looks like it’s 34xx , Lawrence is probably correct.
__________________
Frank |
24th May 2018, 12:57 pm | #20 | |
Retired Dormant Member
Join Date: Oct 2014
Location: Northamptonshire, UK.
Posts: 20
|
Re: Calling on knowledge for a Ferguson 3425 record player.
Quote:
Also Lawrence you are right with the model number.... i don't know how I missed that! >< |
|