Posts
Amplifier
Analysis
Cassette Panel
CD Player
Another CDM2 repaired but one failedCD Player workingCD spare parts and where to find themCDM2 of Unit #3 repairedCDM2 repaired and a first impression of the tape mechanismMore CD-Player issuesNew MicroController Board Rev.C running inside the CD555Repairing broken keys of the CD-PlayerReplace broken parts of CD tray and buttonsTwo CDM2 repaired
CDM2
1 + 1 = 1Another CDM2 failedAnother CDM2 repaired but one failedAnother interesting detail of the CDM2/29CDM2 of Unit #3 repairedCDM2 repairedCDM2 repaired and a first impression of the tape mechanismNew Micro-Processor Board running inside the CD555 for the first timeNew MicroController Board Rev.C running inside the CD555Started with the development of a new uProc boardTwo CDM2 repairedUnit #4 mainly working
Decoder Panel
Modifications
A digital tape counter? Aye, a digital tape counter!Attempts to improve the coolingBluetooth module addedMerry ChristmasMoving on…New Micro-Processor Board running inside the CD555 for the first timeNew MicroController Board Rev.C running inside the CD555On cooling: A control unit for a fanProgress of new cooling possibilities….Tape Counter ButtonTrying to figure out the current position of the tapeUnit 2 finished (for the moment)
Other
Patient 1 (Sander)
Power Supply Panel
Tape Mechanics
1 + 1 = 1A digital tape counter? Aye, a digital tape counter!CDM2 repaired and a first impression of the tape mechanismFC455 donor for the tape mechanismFinal video for repairing the tape mechanismGame over for unit #4Getting familiar with the tape deck mechanicsHappy new year – with new beltsNew Micro-Processor Board running inside the CD555 for the first timeNew MicroController Board Rev.C running inside the CD555Soft Eject and the search for oil…Tape Counter ButtonTape mechanism repairedTroubles with the slide servo relayTrying to figure out the current position of the tapeUnit #3 finally working, tape mechanism fixedUnit #4: Houston we have a lot of problems…Unit 2 finished (for the moment)
Uncategorized
An unusual patient and busy timesCDM2 – the final boss fightCreate your own CD-Player around a CDM2Merry Christmas to everyoneNew Power Supply finishedProgress of the new power supplySome troubles…The dark and cold weather is coming…What a year – the fourth CD555 on sale this year…Working on a new power supply panel
Unit 1
A first analysis of broken thingsA sound machine full of miraclesChecking the power supplyGetting familiar with the tape deck mechanicsReplacing the CPU internal resonator for the clock speedReplacing the tape deck CPUThe initial situationTroubles with the slide servo relayUnit #1 finished for the momentWriting the LCD driver
Unit 2
CD Player workingCD spare parts and where to find themCPU replacement issues solvedEvaluation of Unit #2Last problems for unit 2 solvedMerry ChristmasMore CD-Player issuesPower Supply IssuesRepairing the amplifier – Part 1Repairing the amplifier – Part2Tape recording is now workingTwo CDM2 repairedUnit #2 almost finishedUnit 2 finished (for the moment)
Unit 3
A digital tape counter? Aye, a digital tape counter!CDM2 of Unit #3 repairedFinal video for repairing the tape mechanismFirst long time run of Unit #3 failedFixing the microcontroller boardModification of cassette CPU Rev.B is workingProgress at unit #3Reconnecting the panelsSoft Eject and the search for oil…Tape Counter ButtonTeardownTrying to figure out the current position of the tapeUnit #3 finally working, tape mechanism fixedUnit 3 – A first analysisVideo about AM/FM and amplifier panel added
Unit 4
Video
Workplace
μ-Proc Panel
A digital tape counter? Aye, a digital tape counter!A sound machine full of miraclesAnother video explaining the differences of the new tape deck controllerCPU replacement issues solvedFixing the microcontroller boardLast problems for unit 2 solvedModification of cassette CPU Rev.B is workingNew Micro-Processor Board running inside the CD555 for the first timeNew MicroController Board Rev.C running inside the CD555Replacing the CPU internal resonator for the clock speedReplacing the tape deck CPUSoundmachine right from hellStarted with the development of a new uProc boardUnit 2 finished (for the moment)Writing the LCD driver