UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio and TV Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Audio (record players, hi-fi etc)

Notices

Vintage Audio (record players, hi-fi etc) Amplifiers, speakers, gramophones and other audio equipment.

Closed Thread
 
Thread Tools
Old 18th Oct 2020, 6:21 pm   #1
dorsetdj
New Member
 
Join Date: Oct 2020
Location: Wareham, Dorset, UK.
Posts: 1
Default Philips CD160

I have a Philips CD160 bought new back in the stone age. I has worked fine and outlived at least three other CD players in my house and according to a note left inside it in by myself in 1994 (!) I changed a couple of transistors and it's been fine since. Until recently that is, now there is a persistent hum in the background which would die away after about 10 minutes but now it's permanent. First stop is to change all of the capacitors in the power supply section but that made no difference. Any suggestions anyone?
dorsetdj is offline  
Old 18th Oct 2020, 7:44 pm   #2
Sideband
Dekatron
 
Sideband's Avatar
 
Join Date: Oct 2003
Location: Croydon, Surrey, UK.
Posts: 7,550
Default Re: Philips CD160

May well be a regulator problem. There are usually one or two in the power supply somewhere, typically 7812, 7815 or a 7915, (for a negative supply) something like that anyway. I had a similar problem many years ago with my CD207. It might be mounted in free air or have a heatsink. If the latter, make sure you use fresh heatsink compound.
__________________
There are lots of brilliant keyboard players and then there is Rick Wakeman.....
Sideband is offline  
Closed Thread

Thread Tools



All times are GMT +1. The time now is 11:41 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Copyright ©2002 - 2023, Paul Stenning.