Garrard 4Hf

by **imccoll** » 28 Apr 2009 10:07

Does anyone have a circuit diagram for the Garrard 4HF turntable. i've been asked by my brother who is repairing one but is not on the computer. He's into old equipment. He mentioned something about the motor cicuit and a rheostat. I have spotted the service manual somewhere on-line but he has limited budget and really only needs the circuit.
Thanks in anticipation.

by **LPfan** » 28 Apr 2009 14:25

Hi imccoll,

Welcome to VE !

Have you downloaded the operating manual from the library here? It does not have the circuit diagram, but it can provide a starting point.

The electrical circuit of the 4HF is more complex than that of the 301/401. The rheostat is the pitch control; the motor speed in the 4HF is controlled by varying the voltage supplied to it through the rheostat.

If you can inform us the purpose for this requirement we can help you further. Is your brother facing any problem with his 4HF or he wants to carry out a general service/lub of the unit.? The motor can be completely dismantled and lubed w/o touching the wiring.

Regards,

LPfan

by **imccoll** » 03 May 2009 21:14

Thanks LPfan. I have now downloaded the operating manual and my brother is pleased with this. I asked him why he needed the circuit diagram and he said he just wanted to see if any alterations had been done to the deck. I only see him on a Sundays so i will ask him more about his deck next Sunday. I believe he does not have the base but only the deck top.I'll let you know in a weeks time. Thanks for the interest.

by **LPfan** » 05 May 2009 19:23

Imccoll,

If your brother’s deck is w/o a base, you can look at timspell’s deck for inspiration.

If he wants to check the wiring, try to post pics of the wiring, so I can check against mine. I am sure nobody has touched the wiring on my unit since it left Swindon, and it is a UK spec unit built to run off 240V/50Hz.

If your brother wants to service the motor, I shall post a small write-up about that.

Regards,

LPfan

by **Grahammd206** » 19 Oct 2009 17:08

I have the Garrard 4hf Service manual here with the speed control circuits in, i can scan and email the page to you if this is any help.

by **LPfan** » 20 Oct 2009 03:21

Grahammd206 wrote:I have the Garrard 4hf Service manual here with the speed control circuits in, i can scan and email the page to you if this is any help.

Hi Grahammd206,

You have a pm.

Regards,

LPfan

by **LPfan** » 30 Oct 2009 13:32

LPfan wrote:
Grahammd206 wrote:I have the Garrard 4hf Service manual here with the speed control circuits in, i can scan and email the page to you if this is any help.

Hi Grahammd206,

You have a pm.

Regards,

LPfan

bump

Regards

LPfan

by **LPfan** » 13 Mar 2010 03:13

LPfan wrote:
LPfan wrote:
Grahammd206 wrote:I have the Garrard 4hf Service manual here with the speed control circuits in, i can scan and email the page to you if this is any help.

Hi Grahammd206,

You have a pm.

Regards,

LPfan

bump

Regards

LPfan

Hi Grahammd206,

Hope you are still visiting this place. Myself and several other forum members here require that 4HF service manual. Please upload that.

thanx in advance,

LPfan

by **josephazannieri** » 13 Mar 2010 03:47

Yo Grahammd206:

Actually, you could turn yourself from a junior member to a contributor real quick by uploading a copy of your manual to the website here into the library. Then it would benefit all, and you would not have to send out multiple copies. I have a circuit that has been used by LPfan, among others, but it is not a manual, and so when somebody wants it, I have to send it out specially to that person.

If you put the manual in the library, then it's more economical, and easier for everybody to use. And you would have the profound gratitude of all who use the site, including the much obliged old constructor,

Joe Z.

by **aardvarkash10** » 15 Mar 2010 08:06

yay! I have ANOTHER Garrard project!

Missed out on the zero 100 I was after though... Sorry Vox!

by **josephazannieri** » 15 Mar 2010 16:15

Yo A10:

Now THERE is a serious rat (project)! But, since it's a Garrard, it might surprise you and still work! I initially thought the arm was broken, but on a more careful view, I see that the headshell has been pulled out, but arm looks OK. These old Garrards are really tough and hard to break.

Where did it come from? Somebody's barn? Somebody's cellar? I think I see vermin droppings and a little rust. I had vermin living in a speaker for a while. They really liked that damping material. Now THAT was a mess!

Looks like it needs a pressure washing just to start. I'd check to see if motor spins, etc. and clean off the sticky grease. But you probably know that already.

Congratulations! I think when you wash it off, everything will improve considerably. Paint still looks pretty good. It will give a psychological overhaul when it's clean. There was a period of time when I was repairing stereo gear. I'd get these nebulous complaints like, "It just doesn't put out like it used to." I'd bench test the rig and it would be completely to spec. Then I would clean it off, using a toothbrush in the flutings on the knobs and Q-tips in the corners, so it would look great. I would say I "tested and adjusted" the rig, and charge the guy for my time. The customer was always satisfied, and always said the rig sounded better, even though the measured performance was exactly the same as before. Clean is important.

Congratulations and good luck from the old pressure washer!

Joe Z.

by **aardvarkash10** » 15 Mar 2010 19:40

yes, we had a similar idea of it here joe - called an acrylic recondition where paint rather than parts are applied. TT is currently 1500km from me, so I don't yet know its real condition - I'll keep you informed!

by **timspell** » 17 Mar 2010 04:42

Looks like a fix-up might me doable aardvarkash10.

Let us know as you make progress on it.

by **Damien Taylor** » 17 Mar 2010 05:27

And take heaps of photos, and let me know where you keep finding these things!

Garrard 4Hf

Garrard 4HF

Garrard 4HF

4HF manual

A10's "new" 4HF