Backlights for NAD Receiver, CD Player

tchp · 4th March 2007, 06:48 PM

The backlights for the LED displays on my NAD Receiver model 705 and my NAD CD Player model 513 are burnt out. I would prefer to solder new bulbs into the small circuit panels the bulbs are mounted on, rather than try to order these potentially expensive circuit boards themselves. The problem is finding bulbs that are the right voltage that I can solder in place. On the receiver I get a voltage reading for the bulbs of 36 volts, and on the CD player the bulbs appear to be getting 12 volts. The bulbs themselves have nothing printed on them, so that is no help in determining how I might order replacements. Does anyone know of a source for bulbs like this? TIA

pinkmouse · 4th March 2007, 06:50 PM

I gave up, and replaced the bulbs in my tuner with an LED array.

tchp · 4th March 2007, 08:42 PM

Did you have to install a resistor in order to use an LED array with your tuner?

pinkmouse · 5th March 2007, 01:59 AM

Yes. I used an old 5K 1W pot, just 'cos I had it lying around.

big jim · 8th March 2007, 08:48 AM

The lamps for the 513 are 15v 60ma

jim

4th March 2007, 06:48 PM	#1
tchp diyAudio Member Join Date: Mar 2007	Backlights for NAD Receiver, CD Player The backlights for the LED displays on my NAD Receiver model 705 and my NAD CD Player model 513 are burnt out. I would prefer to solder new bulbs into the small circuit panels the bulbs are mounted on, rather than try to order these potentially expensive circuit boards themselves. The problem is finding bulbs that are the right voltage that I can solder in place. On the receiver I get a voltage reading for the bulbs of 36 volts, and on the CD player the bulbs appear to be getting 12 volts. The bulbs themselves have nothing printed on them, so that is no help in determining how I might order replacements. Does anyone know of a source for bulbs like this? TIA

4th March 2007, 06:50 PM	#2
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	I gave up, and replaced the bulbs in my tuner with an LED array. __________________ Al I conceive of nothing, in religion, science or philosophy, that is more than the proper thing to wear, for a while. Charles Fort

5th March 2007, 01:59 AM	#4
pinkmouse diyAudio Moderator Join Date: Apr 2002 Location: Chatham, England	Yes. I used an old 5K 1W pot, just 'cos I had it lying around. __________________ 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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4th March 2007, 08:42 PM	#3
tchp diyAudio Member Join Date: Mar 2007	Did you have to install a resistor in order to use an LED array with your tuner?

8th March 2007, 08:48 AM	#5
big jim diyAudio Member Join Date: Feb 2006 Location: london	The lamps for the 513 are 15v 60ma jim

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