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Luxman R-117 Help me

Garret86

Garret86

Member
So I got my hands on a free luxman R-117 receiver. Upon power up there is no sound and the led panel is dead. The red lights for the speaker selection come on and you’re able to choose an input but no sound comes out. Upon power up I can hear the immediate first relay click , no but second one in 5-10 seconds. What do I check first ?
 
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Garret86 said:
Okay so I just tried the main power fuse , and it blew immediately. I tried using a regular fuse as I couldn’t find slow blow but the one that came out of it was a slow blow and was blown. Do I need another slow blow ?
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You need to do a little reading before you try a new fuse or you can do more damage than good.
I would build a dim bulb tester before you try powering it up again.
Good luck

https://audiokarma.org/forums/index...ial-please-feel-free-to-copy-and-post.875584/
 
Garret86 said:
Is it possible that a fast acting fuse of the correct amp would blow immediately when placed in a slot that demanded a slow blown
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To answer this question: yes and no.

A fast acting fuse, let's say 5A @250V, will open quicker than a slow-blow of the same value.
The slow blow fuses allow for a transient surge of current....like when turning on a amplifier and the main large filter capacitors are charging up to full voltage.
Needless, if the line current is approaching the fuse rating you have a problem. The fuse is basically saving the power transformer.

However this discussion is moot since the original fuse is a slow blow type and it was open.

So this means you have a BIG short somewhere. Either main power supply or power amplifier stage has one or more failed components.
Do not keep trying to apply power, you already know there is a fault. Use a DMM and start checking the power supply and power amp stage components.

If you've never worked on a chassis the R-117 is a big-ass beast to learn on.....but there are threads on AK to search and gain some precious info.

--Joe
 
jhjove said:
To answer this question: yes and no.

A fast acting fuse, let's say 5A @250V, will open quicker than a slow-blow of the same value.
The slow blow fuses allow for a transient surge of current....like when turning on a amplifier and the main large filter capacitors are charging up to full voltage.
Needless, if the line current is approaching the fuse rating you have a problem. The fuse is basically saving the power transformer.

However this discussion is moot since the original fuse is a slow blow type and it was open.

So this means you have a BIG short somewhere. Either main power supply or power amplifier stage has one or more failed components.
Do not keep trying to apply power, you already know there is a fault. Use a DMM and start checking the power supply and power amp stage components.

If you've never worked on a chassis the R-117 is a big-ass beast to learn on.....but there are threads on AK to search and gain some precious info.

--Joe
Click to expand...
So there’s no way that when I got it the blown fuse it had was a fluke and all it needs is a new fuse? Is there for sure something wrong with it? Like even without the fuse in it still lights up and you can select an input just no sound
 
I g
jhjove said:
To answer this question: yes and no.

A fast acting fuse, let's say 5A @250V, will open quicker than a slow-blow of the same value.
The slow blow fuses allow for a transient surge of current....like when turning on a amplifier and the main large filter capacitors are charging up to full voltage.
Needless, if the line current is approaching the fuse rating you have a problem. The fuse is basically saving the power transformer.

However this discussion is moot since the original fuse is a slow blow type and it was open.

So this means you have a BIG short somewhere. Either main power supply or power amplifier stage has one or more failed components.
Do not keep trying to apply power, you already know there is a fault. Use a DMM and start checking the power supply and power amp stage components.

If you've never worked on a chassis the R-117 is a big-ass beast to learn on.....but there are threads on AK to search and gain some precious info.

--Joe
Click to expand...
I got this thing off the original owner and it had not been powered on in 20 years or so
 
Garret86 said:
So there’s no way that when I got it the blown fuse it had was a fluke and all it needs is a new fuse? Is there for sure something wrong with it? Like even without the fuse in it still lights up and you can select an input just no sound
Click to expand...

If you spend 15 bucks or so on building a dim bulb tester before you put the new fuse in it will help prevent further damage and if the bulb dims then it may just be the fuse.
If the bulb burns bright you will have a short somewhere and will need to diagnose it further or bring it to someone who can before you plug it directly into mains power again.
Good luck

index.php
 
Garret86 said:
So there’s no way that when I got it the blown fuse it had was a fluke and all it needs is a new fuse? Is there for sure something wrong with it? Like even without the fuse in it still lights up and you can select an input just no sound
Click to expand...

Garret86 said:
I g

I got this thing off the original owner and it had not been powered on in 20 years or so
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My question is why DID the original fuse open?

But follow @Orwell84's suggestion of building a DBT....but also replace the original fuse according to spec. before hooking up the DBT and applying power.
 
Garret86 said:
I g

I got this thing off the original owner and it had not been powered on in 20 years or so
Click to expand...


The luxman-r-117 is one of the nicer high powered receivers from that era and is one I've been on the lookout for my garage and back yard.
We are trying to help you save it without doing further possibly permanent damage to it.
Others will chime in with better knowledge than me to help you out and if you follow their directions you may have the old luxman singing again soon.
Good luck
 
jhjove said:
Do not keep trying to apply power, you already know there is a fault. Use a DMM and start checking the power supply and power amp stage components.
Click to expand...

As @Orwell84 mentioned above and @jhjove mentioned earlier The R-117 is an iconic well revered unit so I would suggest take your time trying to figure out what is going so as not to do any potential damage.

Garret86 said:
Let’s start this off by saying I’m very new to HI-FI and vintage audio being a younger guy.
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If your account info is correct and your just 19 my guess is that you do not have much experience with repair work? if so you might be better served having a seasoned tech take a look and do an assessment for you.
 
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Dswankey said:
As @Orwell84 mentioned above and @jhjove mentioned earlier The R-117 is an iconic well revered unit so I would suggest take your time trying to figure out what is going so as not to do any potential damage.



If your account info is correct and your just 19 my guess is that you do not have much experience with repair work? if so you might be better served having a seasoned tech take a look and do an assessment for you.
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Would it be worth dropping the money to fix it ? My only other receiver is a pioneer sx-880 , I also have the remote for the luxman
 
^ Yes!!! again this unit generally across the board gets a a LOT of respect, and while this is not the place to discuss value, it commands top dollar if you were to sell it down the road however that would be predicated on it working properly.

My comments are coming from someone who is a Luxman fan and currently owns a R-115 and a vintage M-2000 power amp. Luxman has been around for a very long time and produced some really great gear over the years your R-117 being one of them.

One of things you might really like about it is that it's remote controlled so if it came with the OEM remote you're golden if not Luxman remote codes can be found online and you could just easily program then into Logitech Harmony for example.

Another cool thing is it Pre-out/Main-in so you could utilize it as Power amp paired with a pre-amp or a vintage receiver with pre-outs or vice versa and use it as a Pre connect to another power amp.
 
Dswankey said:
As @Orwell84 mentioned above and @jhjove mentioned earlier The R-117 is an iconic well revered unit so I would suggest take your time trying to figure out what is going so as not to do any potential damage.



If your account info is correct and your just 19 my guess is that you do not have much experience with repair work? if so you might be better served having a seasoned tech take a look and do an assessment for you.
Click to expand...
I may have to take it in , others are saying it’s worth fixing and I think this is more then I can handle with my multimeter and basic soldering skills
 
Garret86 said:
I may have to take it in , others are saying it’s worth fixing and I think this is more then I can handle with my multimeter and basic soldering skills
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That is probably a good idea but if you build the dim bulb tester and see if it dims there may be some help from the great minds here first.
If that doesn't work or you're not comfortable trying to fix it yourself you should post your location and someone here might be able to help you find a reliable tech.

Can you post a couple of pictures of the front and back of your r-117 when you get the chance.
 
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