Hi guys
I have a Pioneer Gm 120 amp I would like to resurrect. Does anyone have a schematic for this amp. It's atleast 20 yrs old. Deck and speakers where stolen, never replaced them and just stored the amp. Hoping I can now put it to some use.
Thanks
bob2
I have a Pioneer Gm 120 amp I would like to resurrect. Does anyone have a schematic for this amp. It's atleast 20 yrs old. Deck and speakers where stolen, never replaced them and just stored the amp. Hoping I can now put it to some use.
Thanks
bob2
Hi Dave
I was trying not to date myself, but, you are correct. I think I bought it in the late 70's.
bob2
I was trying not to date myself, but, you are correct. I think I bought it in the late 70's.
bob2
Bob that was a half decent amp in its day along with the component series pioneer had to offer....have you tried firing it up?
Hi Joe
I did like the sound of the system. I am sure the amp still works,
there was no damage to it, had it hidden under the sit, they never found it. Thats why I hope to be able to use it again. I just not sure how to connect it up.
Bob2
I did like the sound of the system. I am sure the amp still works,
there was no damage to it, had it hidden under the sit, they never found it. Thats why I hope to be able to use it again. I just not sure how to connect it up.
Bob2
Bob,
Send Terry @ Sound Hounds <soundhounds -- at -- shaw.ca> an email, he may well have the info you need.
dave
Send Terry @ Sound Hounds <soundhounds -- at -- shaw.ca> an email, he may well have the info you need.
dave
Hi Bob2 and all
This is my first post !!
Yes I have a schematic of GM120 but I will try to scan it, let me some time and I advice you.
This is my first post !!
Yes I have a schematic of GM120 but I will try to scan it, let me some time and I advice you.
Hi Bob2 😀
I try to upload the Schematic in zip format but the system warning me the following "The file that you have tried to attach is too big. The maximum size is 102400 bytes"
the file is 320kb, is possible you write to my e-mail and I reply you and send you the file. !!!
I try to upload the Schematic in zip format but the system warning me the following "The file that you have tried to attach is too big. The maximum size is 102400 bytes"
the file is 320kb, is possible you write to my e-mail and I reply you and send you the file. !!!
GM-120
Hi Bob!
Don't know if you still need it but I have the service manual for your GM-120. I sure could use the owners manual if you have it.
Please let me know.
Thanks,
Steve
Hi Bob!
Don't know if you still need it but I have the service manual for your GM-120. I sure could use the owners manual if you have it.
Please let me know.
Thanks,
Steve
Hello
I´m from austria.
I have the amplifer gm120 from pioneer too.
You have anybody a manual for me!?
Can you mail me the manual, please?
gugsi@gmx.net
Do you know, is the amplifer able to bridge 1x120W for a subwoofer?
greetings form austria
gugsi 🙂
I´m from austria.
I have the amplifer gm120 from pioneer too.
You have anybody a manual for me!?
Can you mail me the manual, please?
gugsi@gmx.net
Do you know, is the amplifer able to bridge 1x120W for a subwoofer?
greetings form austria
gugsi 🙂
need help for schematic of GM120
Hello Hi Speed,
I have the amplifer pioneer GM120. Can you mail me the schematic of GM129... please?
on my email: redhorseaudio@yahoo.com
Hi Speed said:
Hello Hi Speed,
I have the amplifer pioneer GM120. Can you mail me the schematic of GM129... please?
on my email: redhorseaudio@yahoo.com
Hi all
I have a scaned version of the GM120 sch, I will to upload here is 312kb, this amp can't be bridged, maybe if you make one of the input signal out of phase.
I have a scaned version of the GM120 sch, I will to upload here is 312kb, this amp can't be bridged, maybe if you make one of the input signal out of phase.
.
Hi Speed, thank you for posting schematics, here is one GM 120 owner too. The problem is I can't unzip the file because it is corrupted..
Hi Speed, thank you for posting schematics, here is one GM 120 owner too. The problem is I can't unzip the file because it is corrupted..
Hi everyone (from holland)
I have also this pioneer gm-120
it does not switch on
can somebody send the pinouts
to:
mpaymans@gmail.com
I have also this pioneer gm-120
it does not switch on
can somebody send the pinouts
to:
mpaymans@gmail.com
Hello.
I have an gm120 also.
The problem for me is the inputcable.
How do i wire it?
Does anyone know?
Best regards,
martin
I have an gm120 also.
The problem for me is the inputcable.
How do i wire it?
Does anyone know?
Best regards,
martin
I have the same question. I know it's a vintage amp, which is exactly why I want to use it in my vintage Supra. But I want to cheat a little and use a newer head unit. (In addition to the power wire, ground wire, and speaker outs), The amp originally used an 8-pin plug to attach only to vintage Pioneer head units for its input signal. I went ahead and cut and disected the cord trying to figure out how to connect it to a newer head unit. Inside the outer wire braiding (similar to co-ax), I found 3 wires: a red 18awg single conductor, an orange 18awg single conductor, and a grey multi conductor. The grey multi-conductor contains two smaller wires (red and white) surrounded by wire braiding (again like what you find in cable TV coax).
Anybody know, or even care to take a guess, (or can tell me how to test to find out), which wire does what.
Anybody know, or even care to take a guess, (or can tell me how to test to find out), which wire does what.
GM120
Hello everyone,
I have experience working on pioneer gm120.
I fix a lot of those 13 yrs. ago. Its a bit difficult to work on those
because it is a double sided board and difficult to remove the solder, if you are not a well experience on removing the solder
on that unit, you might ruin the foil. It is really a nice amp.
Actually, I think I have still four of those in my closet.
If anybody need some help to troubleshoot, maybe I can help,
but I need to refresh my memory because its long time ago.
dce
Hello everyone,
I have experience working on pioneer gm120.
I fix a lot of those 13 yrs. ago. Its a bit difficult to work on those
because it is a double sided board and difficult to remove the solder, if you are not a well experience on removing the solder
on that unit, you might ruin the foil. It is really a nice amp.
Actually, I think I have still four of those in my closet.
If anybody need some help to troubleshoot, maybe I can help,
but I need to refresh my memory because its long time ago.
dce
Yup, the protection trace runs on both sides of the board. It's hard to trace.
The input level is 20 dB below the normal level. You may need to pad it. I once made a tester or these and the decks so you could run one without the other. Don't know if I can find it. It's been soooo long.
-Chris
The input level is 20 dB below the normal level. You may need to pad it. I once made a tester or these and the decks so you could run one without the other. Don't know if I can find it. It's been soooo long.
-Chris