Roland TR-8
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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 |
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
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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

| 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
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| IC5 | 1 | SDRAM | Issi | IS42S16160D-7TL | 1333 | Datasheet | Mouser |
| 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
| 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/