Hello
I Had this non-working Sony TC-K850ES cassette deck in my shop for some time. A customer who was interested in this model messaged me to buy this. I restored the deck with original genuine Sony Pinch Rollers, Belts and an assortment of gears for the mode encoder mechanics. Replaced the SMD capacitors on the direct drive board and replaced the Standard capacitors on the motor controller board with Nichicon Fine Gold. After restoration the deck records and plays back as intended. The head was in good condition despite it being permalloy material. The deck has Nichicon muse in the recording and playback chains. A solid built machine
I noticed the deck was using some outdated op amps and a low grade 4066 chipset which downgraded the sound quality potential. I went ahead and replaced all op amps in the circuit with Texas Instruments NE5532P and the 4066 upgraded to the ANT4066B. A significant improvement now in recording and playback. Much better than the original state
I added the original advertising stickers specific to this deck as a finishing touch
The deck is now complete and with the new owner.
I Had this non-working Sony TC-K850ES cassette deck in my shop for some time. A customer who was interested in this model messaged me to buy this. I restored the deck with original genuine Sony Pinch Rollers, Belts and an assortment of gears for the mode encoder mechanics. Replaced the SMD capacitors on the direct drive board and replaced the Standard capacitors on the motor controller board with Nichicon Fine Gold. After restoration the deck records and plays back as intended. The head was in good condition despite it being permalloy material. The deck has Nichicon muse in the recording and playback chains. A solid built machine
I noticed the deck was using some outdated op amps and a low grade 4066 chipset which downgraded the sound quality potential. I went ahead and replaced all op amps in the circuit with Texas Instruments NE5532P and the 4066 upgraded to the ANT4066B. A significant improvement now in recording and playback. Much better than the original state
I added the original advertising stickers specific to this deck as a finishing touch
The deck is now complete and with the new owner.
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Paul I like what you are doing and many would like to have their decks fixed. Cassettes making a comeback with cassette decks that are too old and need to be repaired. Only a few know how to repair decks. And lack of parts make it difficult. So Paul are you able to repair cassette decks for the public?
https://homerecording.com/bbs/threa...g-decks-that-know-what-they-are-doing.408727/
https://homerecording.com/bbs/threa...g-decks-that-know-what-they-are-doing.408727/
Hello
Yes I work on cassette decks mainly and do have the parts for restorations. I can also modify and make them sound better. Anyone who needs help feel free to contact me
Paul
Yes I work on cassette decks mainly and do have the parts for restorations. I can also modify and make them sound better. Anyone who needs help feel free to contact me
Paul
Hello
Yes I have worked with the KX1200U and 1020 models before. They are good decks with the Sankyo Transport. They can be modified to sound better
Yes I have worked with the KX1200U and 1020 models before. They are good decks with the Sankyo Transport. They can be modified to sound better
Kx1200 headphones amplifier should be modified to kx990 model.I think kx 990 is superior to kx1200.
Paul,
I take it you don't work on Nakamichi because you don't have Nakamichi test tapes, gauges, and tools.
I take it you don't work on Nakamichi because you don't have Nakamichi test tapes, gauges, and tools.
Yes I do work on Nakamichi decks. I’ve worked on many Dragons, ZX Series and so on. I have a precise M300 gauge, and engineering test tapes from LC Engineering. Those Nakamichi jigs just make the calibration process easier/quicker. They aren’t necessarily required for restorations. They are for convenience. You need to fine tune the deck anyways
Working on naks is no heavier task than working on any good deck...in the end you have the spare parts or you don't, you get them at an affordable price or you don't...too much vodoo around naks...you read the service manuals, you follow them and get the job done.
Yes people on Tapeheads.net really have analysis paralysis instead of having a straightforword answer. The die-hard collectors want their Naks serviced with the original jigs/test tapes which I can respect, but fail to recognize someone with skill can do without those jigs. Provided you have REAL engineering tapes you don't need all that fluff
I answered a guy on a dedicated facebook group that the only Nak proffessionals were found in Japan at Nakamichi headquarters.They designed these decks and made service manuals for the rest of the world to take care as they wouldn't have the time for that...
Cassette deck diagnosis and restorations are time consuming. When you get the deck restored however the effort was all worth it. I like working on Nakamichi decks. My favorite one to work on in the ZX-7/ZX-9
I sold two nak cr 4 and sent them 200 miles by post...After wrapping their weight doubled...That's what I consider wrapping...And I insured them for the full value cost not for the minimum advised by the post office workers.That is how I made sure nobody will play football with them.