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Tech - Wurlitzer OMT 1015-CD problems



 
 
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  #11  
Old October 17th 17, 03:12 AM posted to alt.collecting.juke-boxes
Greg Lentz[_2_]
external usenet poster
 
Posts: 4
Default Tech - Wurlitzer OMT 1015-CD problems

Jay,

tried to send this shortly after my other post but it wouldn't send.

Follow up after seeing your posted pictures. I see Wurlitzer updated the 4
S&CC relays. My transparent relays have been replace by the large orange/red
relay devices along the lower left bottom of the circuit board. I don't have
my schematic with me but it's likely the transistors immediately above those
orange/red relays are controlling the relays. If one of those goes bad it
might be the cause of your problem. If those "relays" are solid state I'm
not sure how to check the relays themselves. If they are still mechanical
you should be able to hear or feel them clicking. If the "K" led is flashing
only intermittently, not continuously lit or not flashing fairly rapidly and
regularly then their that is trying to tell you something. I don't remember
exactly but it could be the "K" led is only supposed to flash when the
carousel is rotating.

Greg

"Greg Lentz" wrote in message news
On 10/24/2016 1:26 AM, jbenz wrote:
John Robertson;698151 Wrote:

John Robertson;698144 Wrote:-
-

Can't help for a few days. Will review this over this weekend and see
what further steps I can advise...

A quick thought is to check that the microswitches all show zeroish
resistance when closed (power off, computer unplugged) and infinite when

open on the off chance that either the K7 or safety micro switch are
defective.

John :-#)#

--
(Please post followups or tech inquiries to the USENET 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."


Hi John,
I tested the three micro-switches up top and all tested good.

Jay




Jay,

Have you obtained the Field service manuals? Check flippers.com. Any
manual that has the CDM12 or CD-pro should be appropriate. Has a decent
troubleshooting section. You will also find sections to check player
operation, gripper arm, cd carrier etc. The player can be checked by
itself using the player control buttons. The other functions must be
done by putting the S&CC into service mode and then pressing the LT
button to reboot the S&CC. The flashing 8 + your other symptoms may be a
bad transistor (T4) in the S&CC. Could also be a bad solenoid(Relay) in
the S&CC (relay 4). The very short time the CD is on the player would
generally mean the S&CC is skipping the step to tell the CD Player to
play the CD. This can happen if one of the microswitches K1, K6, K7 etc
are not working right, especially K1 in this case, or if one of the big
relays with the transparent covers on the S&CC are not working. The
relay not working correctly is usually the result of a bad transistor
that controls it. It sounds like this is happening even though there are
no credits available to play. So it could be something related to the
credit circuits. Is this doing this right away? When first turned on the
carrier should rotate to home itself. You should have an early model CD
Pro unless it's been replaced by a newer CD-Pro. OMT's were switched to
CD Pro's ~April/May 1998.

Have you taken the cover off the computer? If not you should, to make
sure the small back-up battery hasn't leaked.

The missing -30V is important but I don't remember if -30v should be
present at all times or only when going into play mode.

One simple thing to check is the Cancel button on the "remote" volume
control (on the back of the jukebox). Maybe it is stuck closed. I think
you can unplug the control from the amplifier without affecting basic
functionality (power off first).

Greg

Ads
  #12  
Old October 17th 17, 03:28 AM posted to alt.collecting.juke-boxes
Greg Lentz[_2_]
external usenet poster
 
Posts: 4
Default Tech - Wurlitzer OMT 1015-CD problems

Jay,

tried to send this shortly after my other post but it wouldn't send.

Follow up after seeing your posted pictures. I see Wurlitzer updated the 4
S&CC relays. My transparent relays have been replace by the large orange/red
relay devices along the lower left bottom of the circuit board. I don't have
my schematic with me but it's likely the transistors immediately above those
orange/red relays are controlling the relays. If one of those goes bad it
might be the cause of your problem. If those "relays" are solid state I'm
not sure how to check the relays themselves. If they are still mechanical
you should be able to hear or feel them clicking. If the "K" led is flashing
only intermittently, not continuously lit or not flashing fairly rapidly and
regularly then their that is trying to tell you something. I don't remember
exactly but it could be the "K" led is only supposed to flash when the
carousel is rotating.

Greg

"Greg Lentz" wrote in message news
On 10/24/2016 1:26 AM, jbenz wrote:
John Robertson;698151 Wrote:

John Robertson;698144 Wrote:-
-

Can't help for a few days. Will review this over this weekend and see
what further steps I can advise...

A quick thought is to check that the microswitches all show zeroish
resistance when closed (power off, computer unplugged) and infinite when

open on the off chance that either the K7 or safety micro switch are
defective.

John :-#)#

--
(Please post followups or tech inquiries to the USENET 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."


Hi John,
I tested the three micro-switches up top and all tested good.

Jay




Jay,

Have you obtained the Field service manuals? Check flippers.com. Any
manual that has the CDM12 or CD-pro should be appropriate. Has a decent
troubleshooting section. You will also find sections to check player
operation, gripper arm, cd carrier etc. The player can be checked by
itself using the player control buttons. The other functions must be
done by putting the S&CC into service mode and then pressing the LT
button to reboot the S&CC. The flashing 8 + your other symptoms may be a
bad transistor (T4) in the S&CC. Could also be a bad solenoid(Relay) in
the S&CC (relay 4). The very short time the CD is on the player would
generally mean the S&CC is skipping the step to tell the CD Player to
play the CD. This can happen if one of the microswitches K1, K6, K7 etc
are not working right, especially K1 in this case, or if one of the big
relays with the transparent covers on the S&CC are not working. The
relay not working correctly is usually the result of a bad transistor
that controls it. It sounds like this is happening even though there are
no credits available to play. So it could be something related to the
credit circuits. Is this doing this right away? When first turned on the
carrier should rotate to home itself. You should have an early model CD
Pro unless it's been replaced by a newer CD-Pro. OMT's were switched to
CD Pro's ~April/May 1998.

Have you taken the cover off the computer? If not you should, to make
sure the small back-up battery hasn't leaked.

The missing -30V is important but I don't remember if -30v should be
present at all times or only when going into play mode.

One simple thing to check is the Cancel button on the "remote" volume
control (on the back of the jukebox). Maybe it is stuck closed. I think
you can unplug the control from the amplifier without affecting basic
functionality (power off first).

Greg

  #13  
Old October 30th 20, 04:17 AM posted to alt.collecting.juke-boxes
Claudia Amezquita
external usenet poster
 
Posts: 1
Default Tech - Wurlitzer OMT 1015-CD problems

El lunes, 16 de octubre de 2017 a las 21:28:06 UTC-5, Greg Lentz escribió:
Jay,

tried to send this shortly after my other post but it wouldn't send.
Follow up after seeing your posted pictures. I see Wurlitzer updated the 4
S&CC relays. My transparent relays have been replace by the large orange/red
relay devices along the lower left bottom of the circuit board. I don't have
my schematic with me but it's likely the transistors immediately above those
orange/red relays are controlling the relays. If one of those goes bad it
might be the cause of your problem. If those "relays" are solid state I'm
not sure how to check the relays themselves. If they are still mechanical
you should be able to hear or feel them clicking. If the "K" led is flashing
only intermittently, not continuously lit or not flashing fairly rapidly and
regularly then their that is trying to tell you something. I don't remember
exactly but it could be the "K" led is only supposed to flash when the
carousel is rotating.

Greg
"Greg Lentz" wrote in message news On 10/24/2016 1:26 AM, jbenz wrote:
John Robertson;698151 Wrote:

John Robertson;698144 Wrote:-
-

Can't help for a few days. Will review this over this weekend and see
what further steps I can advise...

A quick thought is to check that the microswitches all show zeroish
resistance when closed (power off, computer unplugged) and infinite when

open on the off chance that either the K7 or safety micro switch are
defective.

John :-#)#

--
(Please post followups or tech inquiries to the USENET 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."


Hi John,
I tested the three micro-switches up top and all tested good.

Jay




Jay,

Have you obtained the Field service manuals? Check flippers.com. Any
manual that has the CDM12 or CD-pro should be appropriate. Has a decent
troubleshooting section. You will also find sections to check player
operation, gripper arm, cd carrier etc. The player can be checked by
itself using the player control buttons. The other functions must be
done by putting the S&CC into service mode and then pressing the LT
button to reboot the S&CC. The flashing 8 + your other symptoms may be a
bad transistor (T4) in the S&CC. Could also be a bad solenoid(Relay) in
the S&CC (relay 4). The very short time the CD is on the player would
generally mean the S&CC is skipping the step to tell the CD Player to
play the CD. This can happen if one of the microswitches K1, K6, K7 etc
are not working right, especially K1 in this case, or if one of the big
relays with the transparent covers on the S&CC are not working. The
relay not working correctly is usually the result of a bad transistor
that controls it. It sounds like this is happening even though there are
no credits available to play. So it could be something related to the
credit circuits. Is this doing this right away? When first turned on the
carrier should rotate to home itself. You should have an early model CD
Pro unless it's been replaced by a newer CD-Pro. OMT's were switched to
CD Pro's ~April/May 1998.

Have you taken the cover off the computer? If not you should, to make
sure the small back-up battery hasn't leaked.

The missing -30V is important but I don't remember if -30v should be
present at all times or only when going into play mode.

One simple thing to check is the Cancel button on the "remote" volume
control (on the back of the jukebox). Maybe it is stuck closed. I think
you can unplug the control from the amplifier without affecting basic
functionality (power off first).

Greg

Hello, any news ?. I have the same problem...
 




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