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Roland MKS-20 Service Manual

Roland MKS-20
17 pages
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Roland MKS-20 Specifications

General IconGeneral
BrandRoland
ModelMKS-20
CategoryMusic Equipment
LanguageEnglish

Summary

Service Notes

Specifications

Details the technical specifications of the MKS-20, including output, tunable range, power, dimensions, and weight.

Disassembling Procedure

Top Panel Disassembly

Instructions for removing the top panel of the MKS-20 unit.

Bottom Panel Disassembly

Instructions for removing the bottom panel of the MKS-20 unit.

Parts List

Change Information

ROM Revision Details

Explains changes and differences between MKS-20 ROM versions, including tuning data transfer.

Adjustment and Checking

Effect Board Adjustments

Procedures for adjusting BBD clock, compressor, BBD bias, and MID frequency on the effect board.

MKS-20 Block Diagram

Circuit Descriptions

Equalizer Circuit Explanation

Details the MID EQ, BPF, VCA stages, and how parameters affect audio signals.

Checking Effect Board

Troubleshooting Logic Tree

No Sound Heard Troubleshooting

Logic flow for diagnosing issues when no sound is produced by the MKS-20.

Abnormal Sound Troubleshooting

Logic flow for diagnosing issues when sound is produced but is abnormal.

MIDI Implementation

Supplement and Correction

CPU-A Board Change Information

Details specific modifications, corrections, and errata for the CPU-A board.

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