A couple of weeks ago I received a mail from a CD555 owner asking for help. To make a long story short – the machine found its way on my desk and I do my very best to resurrect it. Afterwards its going back to its owner. Visual inspection The machine came right from a repair man who failed to […]
Category: Analysis
Unit 3 – A first analysis
Now it is time to start to analyse unit #3. It is always a good idea to have a look at possible issues before disassembling everything. The first aid section gives you some hints what can be the problem. Unit #3 shows the same issue as unit #1 – the LCD of the tape deck has all the segments enabled […]
Service Manual in German language
I was able to buy some service manuals from a radio repair shop in Austria which, unfortunately, ceased business. There was a little hope that it contains all pages inclusive chapter 9 (modifications). Unfortunately chapter 9 was missing and I really think it was never written. It seems there is no documentation available for the changes, so the PCBs often […]
Evaluation of Unit #2
Whilst one sound machine is working – more or less, not perfect but I will take care about later – I have done an analysation of the second unit and the issues. First, when switching on the device the power LED is not working. The background LCD is working and the cassette part shows all options. There is no reaction […]
A first analysis of broken things
Well, after studying the service manual for a couple of days and after some measurements I got a first impression of what is broken. The three keys for the CD-Player Play/Stop/Pause are controlled by the tape deck CPU. As we have seen that no key of the tape deck shows any reaction I have a suspicion. To check if I […]
The initial situation
What issues do the sound machine have? As I already stated in another post I have now three of them all showing the same issues. Based on the following four sections I am going to add the current state on the main page. AM/FM Radio The radio is working fine. It is possible to receive signals although it is quite […]