Sound Leisure Series 4 Mechanism Service Manual (Version 3)

This official Sound Leisure service manual provides comprehensive technical documentation for Series 4 CD jukebox and hideaway systems fitted with ACS 1056 processor boards.

Version 3 is written for engineers, operators, and service technicians and focuses on installation, wiring, programming, system configuration, and fault diagnosis rather than general user operation. The manual applies to upright jukeboxes, hideaway units, and wallbox based systems that form the Series 4 platform.

Early sections outline system architecture and core components, including the Series 4 CD mechanism, MK6 and MK7 audio amplifier systems, ACS 1056 main processor boards, and ACS 1043 wallbox processor boards. Detailed installation requirements are provided for jukeboxes, hideaway units, and wallboxes, covering mains supply guidance, earthing, transit release procedures, cable specifications, and voltage requirements. Clear wiring diagrams illustrate correct connections between jukeboxes, hideaways, and up to three wallboxes.

The manual explains compact disc installation, disc care, and correct orientation within the 70 disc carousel. Extensive coverage is given to the full sequence of operation, including carousel scanning, opto synchronisation, disc counting, clamp and transfer cycles, reject logic, and error handling. This makes the manual a key reference for diagnosing mechanical and logic faults within Series 4 CD mechanisms.

In depth technical chapters cover MK6 mono and MK7 mono or stereo sound systems, including pre amplifier setup, power amplifier specifications, microphone priority, auxiliary inputs, slave outputs, karaoke configuration, gain structure, and speaker wiring options. Detailed diagrams show amplifier layouts, control locations, and input pinouts.

Programming sections provide step by step guidance on menu navigation, pricing structures, intermediate pricing, factory settings, background music configuration, random play, track length limits, and popularity tracking. Advanced timed functions are fully documented, including Happy Hour pricing, coin lockout, timed free credit, background music scheduling, and Real Time Clock adjustment for GMT and BST.

Additional chapters include wallbox testing procedures, DIL switch settings, player mechanism setup, opto alignment, and complete CD mechanism parts and spares lists. This document is the correct technical reference for servicing and maintaining Sound Leisure Series 4 CD jukebox and hideaway systems, and is not intended for Series 5 or modern touchscreen platforms.