Question about Audio Players & Recorders

Open Question

RCA RCD175 CD player won't power up on ac but will on batteries

The unit has good rectification but on the 9V buss it has 15v and on the 4.5V buss it has 3.4V. There is no regulator that I can see on the 9V line. Is the transformer shorted causing it to output a higher voltage?

Posted by on

  • maiyasdada Jan 25, 2009

    I have an RCA RCD175 Boombox that will not power up with AC - It was used only once,and it worked great for about 1 hour, then i unplugged it from the outlet, it would not power up when plugged back in. Ihave not tried batteries yet,I would really prefer to use the AC power cord - Thanks for any help!



6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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.
Good luck!

Posted on Jan 02, 2017

fire sine
  • 382 Answers

SOURCE: Transformer main coil shorted.

You have to do the math according to the circuit path, and all components in between. Break out the voltage meter.

Posted on Oct 28, 2007

  • 8596 Answers

SOURCE: Power Supply transformer failed

2 x 5 Watts RMS Stereo
5 watts continuous RMS power output per channel, at 8
ohms, from 120Hz to 15kHz, with no more than 10%
Total Harmonic Distortion (THD).

Posted on Apr 08, 2008

  • 319 Answers


Unit probably has defective component in standby circuit. Have serviced

Posted on May 08, 2008

  • 1 Answer

SOURCE: Philco 841.205 Power Transformer

...I have a brand new one exactly the same (Philco) that I will sell you for ten bucks.... but I don't know where you are?
Please e-mail me at:

Posted on Mar 24, 2009

  • 1 Answer

SOURCE: Power transformer appears bad.

don't bother with a transformer. use a 12vdc 2amp power supply, the unit has a 8v regulator. remove the bad transformer and connect the power supply. polarity doesn't matter because the unit has full bridge rectifier that will provide the proper polarity.

Posted on Jun 21, 2011

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I'm in 8th grade and I need to find the schematics for an rca boom box with cassette.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.


1 Answer

Dustbuster batteries won't hold a charge.

The AC is not full sine wave. The diode is in the wall adapter

Jan 15, 2013 | Computers & Internet

1 Answer

Need AC 15V 1.1A power cord for HK195 speakers

Hey, I was in the same situation. I tried a 9V DC (yes DC) converter I had and it works perfect. You can use a DC on a AC input - never the other way around. Due to insufficient power I get distortion at very high volumes... but I never play that high so I'm good..

Oct 07, 2009 | Harman Kardon HK206 Computer Speakers

1 Answer

One audio channel is not working

1.check whether the audio.rca jack cable is good
2.check Rca jack connector
3.there might be a problem in your stereo audio processing circuits
4.Contact service centre for further rectification

Nov 21, 2007 | NAD L40 CD Player

Not finding what you are looking for?
Audio Players & Recorders Logo

Related Topics:

245 people viewed this question

Ask a Question

Usually answered in minutes!

Top Audio Players & Recorders Experts


Level 3 Expert

5342 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

The Knight
The Knight

Level 3 Expert

75169 Answers

Are you an Audio Player and Recorder Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides