Question about Audio Players & Recorders
I have a dead CD73, there is no signs og life when power on. Mains trafo seems ok, and the fuses too.
These are a cool old machine. They use the cdm1 laser mechanism that was revered in its day for high performance. If you have voltage available after the rectifier stages, check the 3 pin voltage regulators. Marked as 78xx for positive regulator, and 79xx for negative. the xx gives you the voltage they are supposed to be putting out. They commonly fail, also check the same for dry solder joint. resolder them anyway if you are unsure. If all the regulators check out, then also check low value flame proof resistors in the power supply rails. Get back to me here again and let me know how you got on. Good Luck
Posted on Aug 09, 2008
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Jan 12, 2016 | JVC Video Cameras
Mar 18, 2011 | Bosch Washing Machines
Dead appliance, power on wall outlet.
SAFETY IS PARAMOUNT!
this only if you are competent.
your appliance has absolutely no functions at all, remove it from the
mains supply, remove the case and see where the mains lead goes in to
the appliance and follow the cable until you find the main fuse.
ONLY USE THE SAME TYPE AND RATING OF FUSE TO REPLACE IT.
The usual cause of this fuse failure is the door switches are contaminated or sticking. Check the door switches before putting power back on to the appliance.
Hope this helps.
Jan 18, 2011 | GE Advantium 120 Convection/Microwave Oven
Oct 20, 2010 | Canon Office Equipment & Supplies
Feb 21, 2010 | Sony Computers & Internet
Dec 03, 2009 | Compaq Computers & Internet
Mar 27, 2008 | Audio Players & Recorders
430 people viewed this question
Usually answered in minutes!