Tech: Wurlitzer 1100 no sound

We have been playing the jukebox a lot more in the last few weeks. (Filled with Christmas music). Tonight started it up and everything works as normal but no sound. Doesn't seem to be any power to the amplifier. Tubes don't light up, and fuses are good. Where should I start looking for the problems?

Thanks
Tammy

On 12/21/2014, 8:31 PM, Tammy Cox wrote:
We have been playing the jukebox a lot more in the last few weeks. (Filled with Christmas music). Tonight started it up and everything works as normal but no sound. Doesn't seem to be any power to the amplifier. Tubes don't light up, and fuses are good. Where should I start looking for the problems?

Thanks
Tammy


Try plugging the amplifier into an extension cord. Do any tubes light
up? If you get it working on an extension cord, then I'd take the
Amplifier outlet socket apart on the Control Box and repair it. Perhaps
one of the wipers is not sprung out enough...

John :-#)#
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(Please post followups or tech inquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."

On Monday, December 22, 2014 2:15:57 AM UTC-5, John Robertson wrote:
On 12/21/2014, 8:31 PM, Tammy Cox wrote:
We have been playing the jukebox a lot more in the last few weeks. (Filled with Christmas music). Tonight started it up and everything works as normal but no sound. Doesn't seem to be any power to the amplifier. Tubes don't light up, and fuses are good. Where should I start looking for the problems?

Thanks
Tammy


Try plugging the amplifier into an extension cord. Do any tubes light
up? If you get it working on an extension cord, then I'd take the
Amplifier outlet socket apart on the Control Box and repair it. Perhaps
one of the wipers is not sprung out enough...

John :-#)#
--
(Please post followups or tech inquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."

John,

Is it setup as 110v?

On 12/22/2014, 12:04 PM, Tammy Cox wrote:
On Monday, December 22, 2014 2:15:57 AM UTC-5, John Robertson wrote:
On 12/21/2014, 8:31 PM, Tammy Cox wrote:
We have been playing the jukebox a lot more in the last few weeks. (Filled with Christmas music). Tonight started it up and everything works as normal but no sound. Doesn't seem to be any power to the amplifier. Tubes don't light up, and fuses are good. Where should I start looking for the problems?

Thanks
Tammy


Try plugging the amplifier into an extension cord. Do any tubes light
up? If you get it working on an extension cord, then I'd take the
Amplifier outlet socket apart on the Control Box and repair it. Perhaps
one of the wipers is not sprung out enough...

John :-#)#

John,

Is it setup as 110v?


If you mean, is the amplifier setup to 115VAC, then yes, that would be
the normal for North America. Back in the 30s and 40s it was possible to
have different voltages, but any machine currently running should be
115VAC @ 60hZ. So, indeed, you can unplug the amp from the Control
Center and plug it into any extension cord (115VAC) and it should light
up and you should hear noise or at least some hum from the speaker.

Of course if you are in Europe or somewhere else on the planet then I
can't be certain your amp would be 115 or 220 or 100VAC - that would
depend on where the heck you are! If any doubt there should be a metal
plate on the amplifier with the line voltage and frequency clearly set out.

John :-#)#

--
(Please post followups or tech inquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."

On Tuesday, December 23, 2014 2:55:50 AM UTC-5, John Robertson wrote:
On 12/22/2014, 12:04 PM, Tammy Cox wrote:
On Monday, December 22, 2014 2:15:57 AM UTC-5, John Robertson wrote:
On 12/21/2014, 8:31 PM, Tammy Cox wrote:
We have been playing the jukebox a lot more in the last few weeks. (Filled with Christmas music). Tonight started it up and everything works as normal but no sound. Doesn't seem to be any power to the amplifier. Tubes don't light up, and fuses are good. Where should I start looking for the problems?

Thanks
Tammy


Try plugging the amplifier into an extension cord. Do any tubes light
up? If you get it working on an extension cord, then I'd take the
Amplifier outlet socket apart on the Control Box and repair it. Perhaps
one of the wipers is not sprung out enough...

John :-#)#

John,

Is it setup as 110v?


If you mean, is the amplifier setup to 115VAC, then yes, that would be
the normal for North America. Back in the 30s and 40s it was possible to
have different voltages, but any machine currently running should be
115VAC @ 60hZ. So, indeed, you can unplug the amp from the Control
Center and plug it into any extension cord (115VAC) and it should light
up and you should hear noise or at least some hum from the speaker.

Of course if you are in Europe or somewhere else on the planet then I
can't be certain your amp would be 115 or 220 or 100VAC - that would
depend on where the heck you are! If any doubt there should be a metal
plate on the amplifier with the line voltage and frequency clearly set out.

On Tuesday, December 23, 2014 2:55:50 AM UTC-5, John Robertson wrote:
On 12/22/2014, 12:04 PM, Tammy Cox wrote:
On Monday, December 22, 2014 2:15:57 AM UTC-5, John Robertson wrote:
On 12/21/2014, 8:31 PM, Tammy Cox wrote:
We have been playing the jukebox a lot more in the last few weeks. (Filled with Christmas music). Tonight started it up and everything works as normal but no sound. Doesn't seem to be any power to the amplifier. Tubes don't light up, and fuses are good. Where should I start looking for the problems?

Thanks
Tammy


Try plugging the amplifier into an extension cord. Do any tubes light
up? If you get it working on an extension cord, then I'd take the
Amplifier outlet socket apart on the Control Box and repair it. Perhaps
one of the wipers is not sprung out enough...

John :-#)#

John,

Is it setup as 110v?


If you mean, is the amplifier setup to 115VAC, then yes, that would be
the normal for North America. Back in the 30s and 40s it was possible to
have different voltages, but any machine currently running should be
115VAC @ 60hZ. So, indeed, you can unplug the amp from the Control
Center and plug it into any extension cord (115VAC) and it should light
up and you should hear noise or at least some hum from the speaker.

Of course if you are in Europe or somewhere else on the planet then I
can't be certain your amp would be 115 or 220 or 100VAC - that would
depend on where the heck you are! If any doubt there should be a metal
plate on the amplifier with the line voltage and frequency clearly set out.

On 12/25/2014, 8:29 AM, Tamster wrote:
On Tuesday, December 23, 2014 2:55:50 AM UTC-5, John Robertson wrote:
On 12/22/2014, 12:04 PM, Tammy Cox wrote:
On Monday, December 22, 2014 2:15:57 AM UTC-5, John Robertson wrote:
On 12/21/2014, 8:31 PM, Tammy Cox wrote:
We have been playing the jukebox a lot more in the last few weeks. (Filled with Christmas music). Tonight started it up and everything works as normal but no sound. Doesn't seem to be any power to the amplifier. Tubes don't light up, and fuses are good. Where should I start looking for the problems?

Thanks
Tammy


Try plugging the amplifier into an extension cord. Do any tubes light
up? If you get it working on an extension cord, then I'd take the
Amplifier outlet socket apart on the Control Box and repair it. Perhaps
one of the wipers is not sprung out enough...

John :-#)#

John,

Is it setup as 110v?


If you mean, is the amplifier setup to 115VAC, then yes, that would be
the normal for North America. Back in the 30s and 40s it was possible to
have different voltages, but any machine currently running should be
115VAC @ 60hZ. So, indeed, you can unplug the amp from the Control
Center and plug it into any extension cord (115VAC) and it should light
up and you should hear noise or at least some hum from the speaker.

Of course if you are in Europe or somewhere else on the planet then I
can't be certain your amp would be 115 or 220 or 100VAC - that would
depend on where the heck you are! If any doubt there should be a metal
plate on the amplifier with the line voltage and frequency clearly set out.

John :-#)#

--
(Please post followups or tech inquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."

Ok we changed out the 6J5 Tube and we now have sound, although the amp is still plugged into the extension cord. Is it possible the 6J5 Tube shorted and caused a fuse to blow somewhere?

This just made our Christmas!


Maybe, but unlikely. Does the amp now work when plugged into the jukebox
control box? However I do suggest you take the control box out when you
have a chance and have someone look it over. Your power cord may be
getting brittle, you could have problems with the old 115V sockets (they
come apart and can be repaired) on the control box, etc.

I guess for now enjoy the machine with the amp on the extension cord,
and simply unplug it when finished playing. Check the condition of the
amplifier power cord - it too can have insulation failure if it hasn't
been replaced in the past twenty or so years.

If you have an electrician friend have him/her go over the machine for a
safety check. You don't want a fire after all!

John :-#)#
John :-#)#

--
(Please post followups or tech inquiries to the newsgroup)
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
(604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
www.flippers.com
"Old pinballers never die, they just flip out."