SERVICE NOTES
Issued by RJA
Copyright © 2019 Roland Corporation
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of Roland Corporation.
CC-KWS17057241E0
Oct. 2019 KTN-50_2
Table of Contents
Cautionary Notes ..............................................................2
Specifications .....................................................................3
Location of Control (Top) ................................................4
Location of Control Parts List (Top)...............................4
Location of Control (Rear) ...............................................5
Location of Control Parts List (Rear)..............................5
Exploded View (Cabinet).................................................6
Exploded View Parts List (Cabinet) ...............................7
Disassembly Procedure....................................................7
Note on Disassembly........................................................7
Important Notes on Assembly ........................................7
Plain View (Cabinet: 1).....................................................8
Plain View (Cabinet: 2).....................................................9
Exploded View (Chassis) ...............................................10
Exploded View Parts List (Chassis)..............................11
Plain View (Chassis: 1) ...................................................12
Plain View (Chassis: 2) ...................................................13
Wiring Diagram...............................................................14
Block Diagram .................................................................16
Parts List ...........................................................................18
Verifying the Version......................................................21
Data Backup and Restore Operations ..........................21
System Update Procedure..............................................21
Performing a Factory Reset............................................21
Test Mode.........................................................................22
Circuit Board (Main Board) ...........................................28
Circuit Diagram (Main Board: 1/3)..............................30
Circuit Diagram (Main Board: 2/3)..............................32
Circuit Diagram (Main Board: 3/3)..............................34
Circuit Board (Panel, Amp, Input, Fuse Board)..........36
Circuit Diagram (Panel Board)......................................38
Circuit Diagram (Amp Board).......................................40
Circuit Diagram (Input Board)......................................41
Circuit Diagram (Fuse Board) .......................................41
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