Nad 5420 display problem

harry303 · 2nd December 2004, 03:15 PM

Hello,

I´m usaing a Nad 5420 Cd-Player,

but the display dosn´t work anymore.

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

but the lamp doesn´t work .

What kind of lamp is this ?

12 V ?? mA?

Didn´t find any information about this in www

greets

harry303

woofer · 2nd April 2005, 10:24 PM

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.

pinkmouse · 2nd April 2005, 11:14 PM

This happened several times on my NAD tuner. In the end, I replaced the filament lamp with LEDs, and no problems since.

cpemma · 3rd April 2005, 07:10 PM

Quote:

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.

2nd December 2004, 03:15 PM	#1
harry303 diyAudio Member Join Date: Dec 2004 Location: Germany	Nad 5420 display problem Hello, I´m usaing a Nad 5420 Cd-Player, but the display dosn´t work anymore. If iI look through the display, I can see everthing, but the lamp doesn´t work . What kind of lamp is this ? 12 V ?? mA? Didn´t find any information about this in www greets harry303

2nd April 2005, 11:14 PM	#3
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	This happened several times on my NAD tuner. In the end, I replaced the filament lamp with LEDs, and no problems since. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

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2nd April 2005, 10:24 PM	#2
woofer 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.

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