Nad 5420 display problem - diyAudio
Go Back   Home > Forums > Design & Build > Parts
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Parts Where to get, and how to make the best bits. PCB's, caps, transformers, etc.

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
Thread Tools Search this Thread
Old 2nd December 2004, 02:15 PM   #1
diyAudio Member
Join Date: Dec 2004
Location: Germany
Default Nad 5420 display problem


Iīm usaing a Nad 5420 Cd-Player,

but the display dosnīt work anymore.

If iI look through the display, I can see everthing,

but the lamp doesnīt work .

What kind of lamp is this ?

12 V ?? mA?

Didnīt find any information about this in www


  Reply With Quote
Old 2nd April 2005, 09:24 PM   #2
woofer is offline woofer  Canada
diyAudio Member
Join Date: Apr 2005
Location: Ontario
Your display light bulb has just burned out --- it is easy to replace -- this has happened with my NAD 5420 at least three times.

Just open the cabinet (after unplugging power) and unsolder / take out the old bulb. Take it to an electronics supply store or repair shop and ask for a similar bulb -- there are many that will do. Then, solder it in and your display should work again.
  Reply With Quote
Old 2nd April 2005, 10:14 PM   #3
diyAudio Moderator
pinkmouse's Avatar
Join Date: Apr 2002
Location: Rotherham, England
This happened several times on my NAD tuner. In the end, I replaced the filament lamp with LEDs, and no problems since.
Rick: Oh Cliff / Sometimes it must be difficult not to feel as if / You really are a cliff / when fascists keep trying to push you over it! / Are they the lemmings / Or are you, Cliff? / Or are you Cliff?
  Reply With Quote
Old 3rd April 2005, 06:10 PM   #4
cpemma is offline cpemma  United Kingdom
diyAudio Member
Join Date: Jul 2003
Location: S Yorkshire OK
Originally posted by woofer
Your display light bulb has just burned out --- it is easy to replace -- this has happened with my NAD 5420 at least three times.
They must have revised the system then, as it was a beggar to get at on mine - screws holding the lamp housing are on the flip-side of the pcb.

After a regular annual failure and no easy source for the tubular bulb fitted, I fiitted a couple of 4R7 resistors with a wire-ended bulb in between. A bit dimmer than it was, but it's lasted about 8 years now.
  Reply With Quote


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
NAD 5420 CDP opamps parrot Chip Amps 58 3rd June 2008 01:47 PM
display problem! logen Digital Source 0 25th April 2008 01:48 PM

New To Site? Need Help?

All times are GMT. The time now is 11:53 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Đ1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2