Roland HandSonic HPD-20 Service Notes

SERVICE NOTES
Issued by RJA
Copyright © 2013 Roland Corporation
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of Roland Corporation.
CC-OKN17058860E0
Sep. 2013 HPD-20
Table of Contents
Cautionary Notes ..............................................................2
Specifications .....................................................................3
Location of Controls .........................................................4
Location of Controls Parts List........................................5
Exploded View ..................................................................6
Exploded View Parts List.................................................7
Plane View (View 1, 2)......................................................8
Plane View (View 3, 4, 5, 6)..............................................9
Plane View (View 7, 8, 9)................................................10
Important Notes on Assembly ......................................11
Parts List...........................................................................13
Wiring Diagram...............................................................15
Block Diagram .................................................................16
Verifying the Version .....................................................18
Data Backup and Restore Operations ..........................18
Performing a Factory Reset............................................19
Updating the System ......................................................19
Test Mode.........................................................................19
Circuit Board (Main Board) ...........................................26
Circuit Diagram (Main Board: 1/4)..............................28
Circuit Diagram (Main Board: 2/4)..............................30
Circuit Diagram (Main Board: 3/4)..............................32
Circuit Diagram (Main Board: 4/4)..............................34
Circuit Board (Panel, Jack, Jksub Board) .....................36
Circuit Diagram (Panel Board: 1/4) .............................38
Circuit Diagram (Panel Board: 2/4) .............................40
Circuit Diagram (Panel Board: 3/4) .............................42
Circuit Diagram (Panel Board: 4/4) .............................44
Circuit Diagram (Jack Board: 1/3)................................46
Circuit Diagram (Jack Board: 2/3)................................48
Circuit Diagram (Jack Board: 3/3)................................50
Circuit Diagram (Jksub Board)......................................52
Circuit Board (Sensor Board).........................................53
Circuit Diagram (Sensor Board)....................................53

Roland HandSonic HPD-20 Specifications

General

Pads	13
Instruments	850
User Instruments	500
Kits	200
User Kits	100
Type	Percussion Pad
Sampling	Yes
Phrase Loop	Yes
Effects	EQ
Display	Backlit LCD
Power Supply	AC adapter (included)
Connectivity	USB, MIDI In/Out
Weight	5.51 lbs