Well, here is another episode this time with the am/fm and amplifier panel. Since this panel is working fine there is not much to do. I explain what failed on other units and put thermal paste onto the heatsinks. This helps a lot to cool the amplifiers down. https://youtu.be/_CosOQB9Aho
Category: Video
Final video for repairing the tape mechanism
Here is the second part of repairing the tape mechanism. Hopefully you find some tips and methods to get your tape back working. However, you need a lot of patience… https://youtu.be/5WmVaMAiEAA
Fixing the microcontroller board
It was time to fix the microcontroller board. Since the display sometimes showed the correct segments it was clear that the serial bus of the CPU is working and the CPU itself might be ok. There can always be a toasted input/output but I have never seen such a failure. It was obvious that the CPU sends a command to […]
Reconnecting the panels
Now after the teardown we need to reconnect the panels to get a working naked “sound machine”. To place all the panels it is necessary to extend some cables. To have access to all panels is a lot of work but it is worth the job since we can easily take them out and can step by step control, repair […]
Teardown
Now it is getting serious – we are disassembling unit #3. In this case a video it really helpful and shows the steps I took to remove all the parts. Usually you might to take notes or remember which screw you took from which part of the device but in this case the machine already got opened and the screws […]
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 […]
Another video explaining the differences of the new tape deck controller
Better than describing a function is to show it. And here is a short video explaining the implementation of the new tape deck CPU and the firmware… https://youtu.be/vzf9zgwYRe8
Started with videos…
The last days I had some problems with my arm and was not able to use the computer. Ever tried to use the mouse with the left hand when you are right handed? At least not Covid – hope all are healthy and safe! But I thought this would be a good time to start with additional videos. Sometimes it […]