LaserDisc Database

Pioneer IC (Chip) Datasheets ?
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Author:  d770 [ 15 Sep 2021, 11:45 ]
Post subject:  Pioneer IC (Chip) Datasheets ?

Looking at some issues with a couple of Pioneer Players...and particularly focusing on Pioneer Mode Controller Chips....except the Service Manuals do not have much info on them...usually such commercial Chips have a readily available Datasheet.

do such Pioneer Chip Datasheets exist ? were they ever provided to service technicians?

Author:  cplusplus [ 16 Sep 2021, 04:48 ]
Post subject:  Re: Pioneer IC (Chip) Datasheets ?

They weren't really commercial ICs, they were internal ICs. Some service manuals show IC internals and full pinouts though. I have a few technical training manuals that go into a tad more detail for the players they were written for.

All the information the tech needed in regards to ICs was in the service manual and service guide.

Author:  d770 [ 21 Sep 2021, 14:46 ]
Post subject:  Re: Pioneer IC (Chip) Datasheets ?

Yes it would be nice if were some tech info to describe the process/steps of the micro chips... we have what we have!

Author:  cplusplus [ 22 Sep 2021, 01:09 ]
Post subject:  Re: Pioneer IC (Chip) Datasheets ?

Check pages 76-78 of CLD-99 SM for mode control details. Pinout of IC is on page 69. From there you can look at the service guide here: CLD-D770

Author:  d770 [ 25 Sep 2021, 14:06 ]
Post subject:  Re: Pioneer IC (Chip) Datasheets ?

Many thanks for the info pointers C++ .... that info gives us more clues! It seems each Service Manual varies in the info you get.... I have been working on players CLD-2290/2090 and CLD-2590K where both cannot see Digital Tracks but also they have the same issue whereby a Microcontroller output should be high (5V) but isnt - on pushing the power button.

Author:  cplusplus [ 25 Sep 2021, 18:04 ]
Post subject:  Re: Pioneer IC (Chip) Datasheets ?

I posted in your CLD-2290 thread.

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