Roland TR-8

Roland TR-8
Preliminary Information
Release Year	2014
Leak Risk	Medium
Batteries	None
Mounting Technology	Through Hole, SMD
Capacitor Types	Aluminum Electrolytic, Tantalum, Ceramic, Polymer
Destructive Entry	No

For more information, see this article's corresponding Wikipedia page: Device.

This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables

This device is in the WorkNeeded:ReplacementParts category because it was flagged as missing information on replacement parts. If it has the original parts listed you may be able to search for replacements using the parametric searches available from parts distributors. If you have or make a list of replacement parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables

This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so.

This is a template page for creating new pages for devices, troubleshooting them, part lists, and other repair info.

Known Issues

Symptom or Problem Encountered

Causes

Faders won't close entirely

Solutions

Clean them

Disassembly Notes

Warnings or tips to disassemble the device

Original Parts

Panel PCB

TR-8 PANEL BOARD ASSY 5100035507

PWB 5100038975 00

M31-2E0184-A-02A

Capacitor Specifications and Footprint Information
RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand
C75					12.75 mm	16.5 mm	4.8 mm	85 °C	through-hole	Lelon
C76, C77	2	100	16 V	Surface Mount	6.1 mm	5.3 mm				Nichicon(?)
C118	1	220	6.3 V		6.25 mm	5.3 mm				Nichicon(?)

Audio PCB

TR-8 JACK BOARD ASSY 5100035510

PWB 5100038976 00

M31-2E0183A-02A

Capacitor Specifications and Footprint Information
RefDes	Qty	Capacitance	Voltage	Mount	Diameter/Size	Height	Lead Spacing	Temp	Type	Brand	Series
C26, C27, C43, C45, C63, C64	6				3.15 mm	5.4 mm
C48, C50	2		25 V		8.1 mm	10 mm
C18, C23, C35, C36	4		25 V		6.2 mm	10.6 mm
C16, C17, C59, C60, C69, C70	6		25 V		4.1 mm	5.45 mm
C7, C25	2		16 V		6.25 mm	5.2 mm
C20	1		16 V		8.1 mm	10.3 mm
C21	-	-	-	-	-	-	-	-	-	-	-
C2, C5	2		16 V		4.9 mm	5.3 mm
C3, C4	2		63 V		6.2 mm	5.2 mm

Main Board PCB

TR-8 MAIN BOARD ASSY 5100035503

PWB 5100038970 00

Capacitor Specifications and Footprint Information
RefDes	Qty	Voltage	Diameter/Size	Height
C145	1	25 V	5 mm	5.2 mm
C39, C48, C90, C115, C123, C139, C182	7		3.15 mm	5.4 mm
C117, C191	2	25 V	6.2 mm	10.6 mm
C203	1	16 V	7 mm	5.3 mm
C127	1	16 V	6.3 mm	7.8 mm


RefDes	Qty	Type	Brand	Chip	Datecode	Datasheet	Order Links
IC10	1	SDRAM	Issi	IS42S16400F-7TL	1342	Datasheet	Mouser Digikey
IC5	1	SDRAM	Issi	IS42S16160D-7TL	1333	Datasheet	Mouser Digikey
IC1	1	FPGA	Roland	ESC-2	1346
IC2	1	FPGA	Roland	ESC-2	1346
IC20	1	DC/DC-Converter		MB39A123	1345

Replacement Parts

Basic PCB Name

Capacitors
RefDes	Qty	Compatible Part Number	Order Links
			Digikey

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Kits

Digikey BOM: https://www.digikey.com/

References