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#1
January 14th 13, 12:08 PM
posted to alt.collecting.juke-boxes
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R-89 AMI pre-amp problem
I have a R-88. It plays at full volume all the time. I disconnected volume control, still full blast. I know it's in pre amp board. Is there a part that usually causes this problem. I have schematic and ability, but need to know what to replace,
Thanks, Robert 
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#2
January 14th 13, 05:15 PM
posted to alt.collecting.juke-boxes
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R-89 AMI pre-amp problem
jukeboxrobert wrote:
I have a R-88. It plays at full volume all the time. I disconnected volume control, still full blast. I know it's in pre amp board. Is there a part that usually causes this problem. I have schematic and ability, but need to know what to replace, Thanks, Robert As I recall disconnecting the volume control (on Rowes) will make the machine play at full volume...some look for issues with the connections between the volume control (10K potentiometer) and the pre-amp. John :-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out."
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#3
January 15th 13, 10:57 AM
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Quote:
I would think that you have a faulty pre-amp board or in some way you have shorted out the volume control or volume control cabling. What happens when you remove the volume control plug from the amplifier? Regards Alan Alan Hood ami-man UK
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#4
January 15th 13, 04:36 PM
posted to alt.collecting.juke-boxes
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R-89 AMI pre-amp problem
On Tuesday, January 15, 2013 4:57:29 AM UTC-6, Alan Hood wrote:
John Robertson;694137 Wrote: jukeboxrobert wrote:- I have a R-88. It plays at full volume all the time. I disconnected volume control, still full blast. I know it's in pre amp board. Is there a part that usually causes this problem. I have schematic and ability, but need to know what to replace, Thanks, Robert- As I recall disconnecting the volume control (on Rowes) will make the machine play at full volume...some look for issues with the connections between the volume control (10K potentiometer) and the pre-amp. John :-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out.." Rowe Ami amplifiers do not work in that way, a few substitute amplifiers made in the UK by Rainbow did. I would think that you have a faulty pre-amp board or in some way you have shorted out the volume control or volume control cabling. What happens when you remove the volume control plug from the amplifier? Regards Alan Alan Hood ami-man UK -- Alan Hood It stays at full volume. I checked for short at cable and plug on amp. I thought maybe they had componet that was usually the cause. I guess mostly I was trying to save time. Thanks, Robert
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#5
January 16th 13, 04:11 PM
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Quote:
What country do you live in? Regards Alan Alan Hood ami-man UK
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#6
January 16th 13, 11:54 PM
posted to alt.collecting.juke-boxes
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R-89 AMI pre-amp problem
On Wednesday, January 16, 2013 10:11:15 AM UTC-6, Alan Hood wrote:
jukeboxrobert;694145 Wrote: On Tuesday, January 15, 2013 4:57:29 AM UTC-6, Alan Hood wrote:- John Robertson;694137 Wrote: jukeboxrobert wrote:- I have a R-88. It plays at full volume all the time. I disconnected volume control, still full blast. I know it's in pre amp board. Is there a part that usually causes this problem. I have schematic and ability, but need to know what to replace, Thanks, Robert- As I recall disconnecting the volume control (on Rowes) will make the machine play at full volume...some look for issues with the connections between the volume control (10K potentiometer) and the pre-amp. John :-#)# -- (Please post followups or tech enquiries to the newsgroup) John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9 Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games) www.flippers.com "Old pinballers never die, they just flip out.." Rowe Ami amplifiers do not work in that way, a few substitute amplifiers made in the UK by Rainbow did. I would think that you have a faulty pre-amp board or in some way you have shorted out the volume control or volume control cabling. What happens when you remove the volume control plug from the amplifier? Regards Alan Alan Hood ami-man UK -- Alan Hood- It stays at full volume. I checked for short at cable and plug on amp. I thought maybe they had componet that was usually the cause. I guess mostly I was trying to save time. Thanks, Robert Hello Robert, What country do you live in? Regards Alan Alan Hood ami-man UK -- Alan Hood I'm in Il., USA
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