Teac runs slow. - UK Vintage Radio Repair and Restoration Discussion Forum

akaigxfan · 13th May 2014, 11:14 pm

My newly acquired Teac 2300SX, which is in spotless condition runs slow on both speeds. I've oiled the motors and cleaned the belt, pulley and capstan drum. Apart from ordering a new drive belt I'm stuffed nothing seems to be binding. I'm just wondering about that belt, there's a fair bit of slack at the longest run of it. Any suggestions please? Motor doesn't seem to be overheating, all caps look in good order.

Thank you.

teetoon · 14th May 2014, 12:18 am

Hi, I have the same model here and I see in the manual that there are 2 steps on the motor pulley for mains frequency. The upper most is the 50hz step. Check that your belt is not on the lower 60hz step as this would make it slow on both speeds.

Further to that, there is also a switch located next to the capstan motor. Check that is set to 50Hz.

David.

akaigxfan · 14th May 2014, 8:26 am

Hello, first thing I did, it had been josseled in transit. Thanks.

Skywave · 14th May 2014, 11:36 am

Change the belt - drive belts are not expensive.

Al.

akaigxfan · 14th May 2014, 12:40 pm

Yep, new belt on order.

Chiltern · 16th May 2014, 8:39 am

I have a Teac A-2300S, on a couple of occasions it has run a little slow, each time solved by lubricating the capstan shaft/bearing.

Cautious about over oiling I've probably been a little too sparing in the past.

Alan

akaigxfan · 16th May 2014, 8:13 pm

Yes thanks, done that.

Jimmyhaflinger · 17th May 2014, 1:13 pm

Maybe the motor has been got at by someone before you? iI had a record deck motor that ran slow due to its rotor being off centre to the stator armature, this was a shaded pole motor though.

akaigxfan · 17th May 2014, 1:29 pm

Yes thanks Jimmy, it's possible, I'll wait till the belt arrives then investigate further.

akaigxfan · 23rd May 2014, 11:36 am

Well, what a chump I feel, the new belt arrived and on turning the machine upside down on the bench with the bottom panel and back removed I LOOKED at the pulley to SEE the correct portion of it which the belt was not on! After slipping it over, away it went at the correct speed and sound is great! I wasn't seeing this before as I was looking at it from the back and the panel goes over and around the pulley concealing it partially.

Thanks guys well at least it now has a new belt on it, all the switches cleaned, motors lubed up and a good clean inside too. What a good sounding machine these are too, there's a Service Sound sticker on the back too dated 2004 so it's had expert attention too fairly recently.

Please close this thread. Thanks again.

13th May 2014, 11:14 pm	#1
akaigxfan Retired Dormant Member Join Date: Jan 2012 Location: Whissonsett, Dereham, Norfolk, UK. Posts: 128	Teac runs slow. My newly acquired Teac 2300SX, which is in spotless condition runs slow on both speeds. I've oiled the motors and cleaned the belt, pulley and capstan drum. Apart from ordering a new drive belt I'm stuffed nothing seems to be binding. I'm just wondering about that belt, there's a fair bit of slack at the longest run of it. Any suggestions please? Motor doesn't seem to be overheating, all caps look in good order. Thank you.

14th May 2014, 12:18 am	#2
teetoon Heptode Join Date: Dec 2010 Location: Barnstaple, N.Devon, UK. Posts: 557	Re: Teac runs slow. Hi, I have the same model here and I see in the manual that there are 2 steps on the motor pulley for mains frequency. The upper most is the 50hz step. Check that your belt is not on the lower 60hz step as this would make it slow on both speeds. Further to that, there is also a switch located next to the capstan motor. Check that is set to 50Hz. David. Last edited by teetoon; 14th May 2014 at 12:28 am.

14th May 2014, 8:26 am	#3
akaigxfan Retired Dormant Member Join Date: Jan 2012 Location: Whissonsett, Dereham, Norfolk, UK. Posts: 128	Re: Teac runs slow. Hello, first thing I did, it had been josseled in transit. Thanks.

14th May 2014, 11:36 am	#4
Skywave Rest in Peace Join Date: Jun 2006 Location: Chard, South Somerset, UK. Posts: 7,457	Re: Teac runs slow. Change the belt - drive belts are not expensive. Al.

14th May 2014, 12:40 pm	#5
akaigxfan Retired Dormant Member Join Date: Jan 2012 Location: Whissonsett, Dereham, Norfolk, UK. Posts: 128	Re: Teac runs slow. Yep, new belt on order.

16th May 2014, 8:39 am	#6
Chiltern Heptode Join Date: Dec 2008 Location: Somerset, UK. Posts: 555	Re: Teac runs slow. I have a Teac A-2300S, on a couple of occasions it has run a little slow, each time solved by lubricating the capstan shaft/bearing. Cautious about over oiling I've probably been a little too sparing in the past. Alan

16th May 2014, 8:13 pm	#7
akaigxfan Retired Dormant Member Join Date: Jan 2012 Location: Whissonsett, Dereham, Norfolk, UK. Posts: 128	Re: Teac runs slow. Yes thanks, done that.

17th May 2014, 1:13 pm	#8
Jimmyhaflinger Heptode Join Date: Feb 2007 Location: La Spezia, Italy Posts: 834	Re: Teac runs slow. Maybe the motor has been got at by someone before you? iI had a record deck motor that ran slow due to its rotor being off centre to the stator armature, this was a shaded pole motor though.

17th May 2014, 1:29 pm	#9
akaigxfan Retired Dormant Member Join Date: Jan 2012 Location: Whissonsett, Dereham, Norfolk, UK. Posts: 128	Re: Teac runs slow. Yes thanks Jimmy, it's possible, I'll wait till the belt arrives then investigate further.

23rd May 2014, 11:36 am	#10
akaigxfan Retired Dormant Member Join Date: Jan 2012 Location: Whissonsett, Dereham, Norfolk, UK. Posts: 128	Re: Teac runs slow. Well, what a chump I feel, the new belt arrived and on turning the machine upside down on the bench with the bottom panel and back removed I LOOKED at the pulley to SEE the correct portion of it which the belt was not on! After slipping it over, away it went at the correct speed and sound is great! I wasn't seeing this before as I was looking at it from the back and the panel goes over and around the pulley concealing it partially. Thanks guys well at least it now has a new belt on it, all the switches cleaned, motors lubed up and a good clean inside too. What a good sounding machine these are too, there's a Service Sound sticker on the back too dated 2004 so it's had expert attention too fairly recently. Please close this thread. Thanks again.