Question about NAD Audio Players & Recorders
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Posted on Jan 02, 2017
SOURCE: NAD 502 CD player LCD problem
hey, well, typical problem i nad cd players, and also receivers by the way. The proble are tha nad use standard glow lamps. And as we know, the blow!! And often when you move around with the cd. Well i do have repair note for this one also. http://www.miguelovitch.dk/ go to the menu: 'amplifier repair notes' (yes includes cd players ;) ) Here you can find free amplifier repair notes, an go fore nad 705 repair fix (same fault with defect bulb's as in you nad cd) And also a technical repair movie showing you the hole process of the 'workaround' this fault i NAD 522 (NAD 501, 502, 512 and more) http://freemovies.s-educator.org/repair_movies/nad/nad_cdplayers_defect_lamp_in_display_stremingvideo.html best regards michael miguelovitch
Posted on Sep 27, 2007
Yes it does have backlamps.
They are soldered to the PCB so you will need a few tools like a soldering iron, philips screwdrivers, solder, and some replacement lamps. Replace the lamps with this type from Farnell electronics. They have a 15000 hr life expectancy and last alot longer in the unit. I have tried many types of lamps over the years, and found these are the best choice if you want them to last.
FOR YOUR SAFETY-BE SURE TO DISCONNECT FROM THE MAINS BEFORE REMOVING THE LID
To get access to the lamps, you need to pull the main PCB out of the chassis to then get access to the bottom side of the printed circuit board where the 2 screws that retain the white lamp reflector assembly. Change both lamps with the type I mentioned,
Be careful not to flex the LCD display that is now exposed, it is quite fragile with the support of the lamp reflector cover no longer in place. ... reverse procedure to reassemble and away you go.
I am more than happy to talk about this solution with you further. Just ask away. Cheers
Posted on Dec 12, 2008
wont do any harm to open it up. look for blown fuses. i have a NAD amp and the desplay goes blank and sound distorts when there is a blown fuse inside, my amp has abourt 8 fuses inside it 4 per chanel
Posted on Jan 22, 2010
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