Hello everyone,
I am looking for a copy of the assembly manual for a Luxkit A3700II amplifier.
I am not sure if this amplifier was every sold outside Japan?
The amp I have seems heavily modified, so with the manual I hope to be able to restore it.
If anyone can help me with a copy of this manual or even the proper circuit diagram for this amplifier will be helpful as well.
Thanks,
Steve.
I am looking for a copy of the assembly manual for a Luxkit A3700II amplifier.
I am not sure if this amplifier was every sold outside Japan?
The amp I have seems heavily modified, so with the manual I hope to be able to restore it.
If anyone can help me with a copy of this manual or even the proper circuit diagram for this amplifier will be helpful as well.
Thanks,
Steve.
I don't have one but am a fan of Lux so took a look around and found a few things. It looks like Luxman sold option kits to go with it, so it's possible what you're looking at is added on option(s).
The Vintage Knob lists the A3700ii as being "very very very similar to the MQ-50"
There are also a ton of Japanese pages with restorations and mod photos and a couple with schematics though not original Luxkit copies. A couple of them linked below.
1)
2)
The Vintage Knob lists the A3700ii as being "very very very similar to the MQ-50"
There are also a ton of Japanese pages with restorations and mod photos and a couple with schematics though not original Luxkit copies. A couple of them linked below.
1)
2)
Thanks Hearinspace,
This amplifier is definitely not original and the modifications don't seem to be done by someone who knew what he was doing.
It's quite a mess underneath although the unit does kind of work.
I've seen the photos on the Japanese pages and might be able to use those together with the MQ50 schematic as a guide, but it would be much easier if I can find a copy of the proper step-by-step manual.
This amplifier is definitely not original and the modifications don't seem to be done by someone who knew what he was doing.
It's quite a mess underneath although the unit does kind of work.
I've seen the photos on the Japanese pages and might be able to use those together with the MQ50 schematic as a guide, but it would be much easier if I can find a copy of the proper step-by-step manual.
I recently acquired a 3700II, and like you I had a hard time looking for info. Luckily I was able to get a japanese magazine that had the schematic, so here it is for posterity:
R103 and 203 values are wrong in the table, for 6CA7, it should be 1k, not 100k. Unfortunately, it doesnt have the adjustment procedure. Voltages in parenthesis are for 6CA7.
R103 and 203 values are wrong in the table, for 6CA7, it should be 1k, not 100k. Unfortunately, it doesnt have the adjustment procedure. Voltages in parenthesis are for 6CA7.
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