Toshiba TMP87CM71F datasheet.pdf

Microcontroller. Instruction set is "reminiscent" of the Z80 but the ROM is mask programmed and cannot be read without major effort. The on-chip VFD driver is not used in this radio.

Adobe Portable Document Format - 4.89 MB - 02/02/2019 at 16:04

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LC72131_datasheet.pdf

AM/FM PLL Frequency Synthesizer. In case you want to take over the tuning.

Adobe Portable Document Format - 400.38 kB - 02/02/2019 at 16:03

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LC75710NE.pdf

Data sheet for the LC75710NE, LC75711NE, and LC75712E VFD controller chips. They differ only in the character set.
LC75710NE for USA and Japan, LC75711NE and LC75712E for Europe.

Adobe Portable Document Format - 506.50 kB - 02/02/2019 at 15:01

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AVR2313_RDS_data_to_hex_converter.dis.txt

Disassembled, with comments from what I remember. Pleased that I managed to understand the listing and largely remember what it was doing. The task is fairly simple, you should be able to port it to other micros if you wish. I only chose the AVR chip because I could program it through a printer port and 74LS245 buffer, and it had a hardware UART.

plain - 8.43 kB - 01/13/2019 at 23:47

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AVR2313_RDS_data_to_hex_converter.hex

The microcontroller code as a hex file. Most if it is blank (FF hex) leaving about 160 bytes of code

x-hex - 5.26 kB - 01/13/2019 at 20:33

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AVR2313_RDS_data_to_hex_converter.bin

This is the binary ROM image of the microcontroller converting the synchronous data from the RDS chip into a stream of ASCII hex characters.

octet-stream - 2.17 kB - 01/13/2019 at 20:24

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K1500-RDS.pdf

My CAD sketches of the radio circuit and where my microcontroller fits.

Adobe Portable Document Format - 49.88 kB - 10/09/2018 at 00:14

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Denon-TU-1500-Service-Manual.pdf

Lots of technical info, including a circuit diagram.

Adobe Portable Document Format - 5.42 MB - 05/21/2018 at 22:22

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