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The Seeburg Black & Grey Boxes

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Item #: B018
Operation and Troubleshooting Guide by Tony Miller Seeburg Models from 1969 to 1977

This book covers the "Black & Gray Boxes" used in Seeburg models from 1969 to 1977: The digital credit and selection system. Seeburg called this new system "Microlog System" - short for "Microscope Logic". It meant that the circuits only could be seen underneath a microscope. Electromechanical faults caused by switches, contacts and moving parts in the credit system were eleminated by using chips.
Tony Miller's writes: "While working on my B.S.E.E., I was employed in Seeburg's Quality Assistance Departement where I repaired more Black and Grey Boxes than I'd like to count. Since their inner workings was a well-kept secret and I was not on the distribution list for documentation, I had to teach myself how the three custom chips work. Because of this. I know how difficult it is to fix one of these boxes without the proper support. This manual addresses that problem, and you'll be able to keep your machine working for a long time to come."
Seeburg never published any detailed information on these Black & Grey Boxes. Those needed had to be returned to the factory for a repair. But today Seeburg does not exist anymore and technicians have to repair by themselves. This book is a complete description of how the Black and Grey Boxes work. They include simplified logic and timing diagrams of each of the three custom chips (two in the Black Box, one in the Grey Box) plus the pricing board setup information, for any machines still using coins. These units were used in these models:
- Apollo (LS3)
- Bandshell (USC1) and Bandshell Firestar (USC2)
- Olympian (SPS 160)
- Matador (SPS2)
- Regency (FC1)
- Vogue II (STD 160), Entertainer (STD2), Sunstar (STD 3) and Mardi Grass (STD4)
- Hutch (FC2)

This 3rd edition includes a chapter on the Seeburg Remote Translator (SRT1), an optional accessory used to permit the SC, SCH Consolettes and 3W1-series wallboxes to work with these machines.

Table of content:
- Foreword
- Introduction
- Schematic Symbols
- Credit Systems
- Selection System: Transmitter
- Selection System: Receiver & Tormat
- Miscellaneous Circuitry
- The SRT1 Seeburg Remote Translator
- The Digital Electronic Consolette
- Troubleshooting
- Semiconductor Cross Reference
- Pricing Logic Board Schematic (Seeburg ON-311164)
- Transmitter Logic Board Schematic (Seeburg ON-311163)
- DTP1 Interface Board schematic (Seeburg ON-311192)
- Receiver Logic Board Schematic (Seeburg ON-311167)
- DRD1 Interface Board Schematic (Seeburg ON-311168)

Licensed reprint, 178 pages, black&white with many diagrams, English, spiralbound

About the author: Tony Miller worked at Seeburg right after leaving High School from 1964 to 1977. He was in charge for quality, amplifiers and development. In 1979, after leaving Seeburg for the "Universal Research Laboratories" which belonged to the Stern-Group, Tony was in charge for jukeboxes again: The development of the MCU and Red Box system used in Seeburgs last models.
Tony Miller passed away on April 6, 2009. With these books he inherited us his great knowledgement about Seeburg technology of the 1960s and 1970s.

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