Luxman Lv-105 - Page 3 - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 22nd October 2006, 07:47 PM   #21
diyAudio Member
 
Join Date: Apr 2004
Location: ventimiglia
Hi Euge555 and all diyAudio friends,
Tomorrow I will upload the schematic for the Luxman D-107U(closest similar toD-105U)
on the site http://fileshare.eshop.bg
The file is big(20MB) in 9 parts and I have only 56k modem.....
Please be patient

Cheers


  Reply With Quote
Old 15th February 2008, 05:32 AM   #22
oakao is offline oakao  Canada
diyAudio Member
 
Join Date: Feb 2008
Smile Luxman LV-105 Service Manual

Hi:

My LV-105(not 105u) just turned dumb. Could anyone send me a copy of Service Manual?

If anyone could suggest possible problem, will oblige.
(The tubes glow, and the heat sink warmed up.....)

Thanks in advance!

oakao
oakao@canada.com
  Reply With Quote
Old 15th February 2008, 05:32 AM   #23
oakao is offline oakao  Canada
diyAudio Member
 
Join Date: Feb 2008
Wink Luxman LV-105 Power

Oh yeah, one more question.
My LV-105 is 220V. version. I have been using step up transformer always, not a big deal though, but any easy way to modify it to 120V? beg for a suggestion.
oakao
oakao@canada.com
  Reply With Quote
Old 15th February 2008, 09:38 PM   #24
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Hi oakao,
Check the power supply.

I don't know if yours has 120 V taps. The CSA/UL models do not have 220V taps.

Where are you located?

-Chris
__________________
"Just because you can, doesn't mean you should" my Wife
  Reply With Quote
Old 15th February 2008, 11:12 PM   #25
oakao is offline oakao  Canada
diyAudio Member
 
Join Date: Feb 2008
Hi Chris (Anatech):

Thank you for replying.
I read from forums, there maybe 3 versions, CSA/UL, M, and a 3rd that is switchable between 220/120. Maybe I send you a picture of the power tap pcb see what it is with mine.

Any tips for me on getting a copy of service manual?

I'm in GTA.

B. rgds,

Clem (oakao)
  Reply With Quote
Old 16th February 2008, 12:04 AM   #26
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Hi Clem,
Quote:
I'm in GTA.
That's great. You are close enough for me to help you out if need be.

-Chris
__________________
"Just because you can, doesn't mean you should" my Wife
  Reply With Quote
Old 22nd March 2008, 08:24 AM   #27
oakao is offline oakao  Canada
diyAudio Member
 
Join Date: Feb 2008
Default Luxman LV 105

Hi Chris and fellow folks:

With the very little time and knowledge I have, I read your exchange of ideas here on LV105 (including LV103), likely the FETs, Q's and the driving gates are something common in causing problems. Would it be a clear cut to just change all of them? Am I to understand correctly or not?

As I told you, my LV 105 gone dumb. No hissssss no hum from any inputs gangs. I have spent a bit of time to look into it in brief:

1. when power on, it came up.
2. both tubes glew.
3. 4 LEDs on PCB glew.
4. Heat Sink warmed up, BUT, when I used my finger to touch it, appeared to me right side was vey hot and left side was just warm. I further felt the FETs, same result. The R channel's are very hot, and not really for the L.

What would be problem of mine?

Am I still expecting your reply on 105 and 105u? Voltage change is not really a big issue though, as I can use transformer.

Happy Easter!

Clem
  Reply With Quote
Old 22nd March 2008, 08:00 PM   #28
MMeche is offline MMeche  United States
diyAudio Member
 
Join Date: Jan 2008
Location: Massachusetts
While I was reading your thread, my LV-105 started acting up. I was about to try figuring out why the CD input was a mess, everthing else worked fine. Then the amp starts clicking in and out whenever I try to drive it. I can get a bit of signal for a brief period at low levels then is just clicks out. It sounds like protection but it can't be thermal, it starts before the thing is warm.

BTW--I have a pdf of the service manual. Its too big to upload here but I can try to email it if anyone needs it.
  Reply With Quote
Old 22nd March 2008, 11:27 PM   #29
AJT is offline AJT  Philippines
diyAudio Moderator
 
AJT's Avatar
 
Join Date: May 2003
Location: Palatiw, Pasig City
Quote:
As I told you, my LV 105 gone dumb. No hissssss no hum from any inputs gangs.
does the output relay click? if not then you have output off-sett problem, the relay won't kick in to protect your speakers...

as to the heatsinks getting hot, you probably have higher bias setting in the other channel, otherwise, it could be ringing....
__________________
the best advertisement for a good audio design is the number of diy'ers wanting to build it after all the years....never the say so of so called gurus....
  Reply With Quote
Old 24th March 2008, 02:51 AM   #30
oakao is offline oakao  Canada
diyAudio Member
 
Join Date: Feb 2008
I'm unlikely able to fix my LV 105. May consider to sell it "as is" to someone who can make good use of it. Any one interested?

Make an offer!

oakao@canada.com
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Luxman C 02 Roar Malmin Solid State 0 17th May 2009 08:08 AM
Luxman LV-102 hifi-valter Solid State 0 8th August 2007 01:21 PM
Luxman L-100 ozaudio Solid State 18 30th October 2006 01:39 PM
FS: Luxman LV-105 Ron_Phelps Swap Meet 1 16th April 2006 11:35 AM
Luxman PD 444 IZHAKKATZ Analogue Source 8 5th August 2004 10:43 PM


New To Site? Need Help?

All times are GMT. The time now is 06:31 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2