MSX-RGB
About the MSX-RGB PCB
MSX-RGB is an open source PCB design by elder0010, published on GitHub. It is a 2-layer board measuring 99.1 × 45.7 mm, with 48 components from 10 distinct parts.
By type, the board carries 25 resistors, 10 transistors, 6 connectors and 4 capacitors.
It belongs with the retro computing designs in this gallery.
From the project
A RGB demodulator for TMS9928A and TMS9929A chip, mostly used on MSX computers.
This board outputs RGB+CSYNC from the original YPbPr chip channels of the TMS99 chip. Output from each color channel can be adjusted using a trimmer. Based on the Universele interface RGB op MSX1 en SV.328. Mine fixes the emitter follower transistors of this version. This repository contains the KiCad project and the Gerber files, the PDF schematics and the BOM file.
MSX-RGB bill of materials (BOM)
48 components, 10 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 10 | MMBT3904 | SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 +2 |
| 2 | Conn_01x07 | PinHeader_1x07_P2.54mm_Vertical | J1, J2 |
| 4 | CONN_01X01 | 1pin | P6, P7, P8, P9 |
| 3 | 5K | Potentiometer_Vishay_TS53YL_Vertical | RV1 - Green, RV2 - Red, RV3 - Blue |
| 4 | 16V/10UF | CP_Elec_3x5.3 | C1, C2, C3, C4 |
| 1 | 2K2 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1 |
| 14 | 1K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R3, R4, R5, R6, R7, R8, R9 +6 |
| 3 | 100K | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R10, R12, R18 |
| 3 | 100R 1/4W | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14, R15, R16 |
| 4 | 4K7 1/4W | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R23, R24, R25, R26 |
MSX-RGB design files
The KiCad project lives in the elder0010/MSX-RGB repository on GitHub; these links point at the commit this page was built from.
MSX-RGB: common questions
How big is the MSX-RGB PCB?
The MSX-RGB measures 99.1 × 45.7 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MSX-RGB?
48 components, from 10 distinct parts. The full bill of materials is listed on this page.
Where can I download the MSX-RGB design files?
From the elder0010/MSX-RGB repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the MSX-RGB design in my own project?
The repository has no license, so all rights stay with elder0010. Use it as a reference, and ask the author before reusing the design.
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