FRONT PWB
About the FRONT PWB PCB
FRONT PWB is an open source PCB design by rgalland, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 134.2 × 34 mm, with 24 components from 13 distinct parts.
Other key parts include the 74AHC273. By type, the board carries 9 resistors, 5 switches, 2 transistors, 2 diodes, 1 IC and 1 LED.
From the project
Schematics of the PC-Engine CD-ROM2 - Includes comments about differences between CDR-30A and the older CDR-30
This repository contains reverse engineering information regarding the PC-Engine CD-ROM2.
It started with the schematics of the main and front PCBs but has now evolve to provide reproduction parts. In the schematics, I attempted to highlight the differences between the CDR-30 (older models) and the CDR-30A but I have even found PCB differences within the newer CDR-30A units. Main difference is the use of the Sony DSP CXD1135 + external RAM as opposed to CXD1167 without additional RAM. Currently available reproduction parts are the 2 flexible PCBs on the KSS-220A laser module. These are not…
Main components on the FRONT PWB
FRONT PWB bill of materials (BOM)
24 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74AHC273 | SOIC-20W_7.5x12.8mm_P1.27mm | IC401 |
| 2 | 2SD1664 | SOT-89-3 | Q401, Q402 |
| 1 | LB202VB | ELD_426XXXX | LD401 |
| 5 | SW_Push | SW_PUSH_6mm_H4.3mm | S401, S402, S403, S404, S405 |
| 1 | Conn_01x10 | JST_ZE_B10B-ZESK-1D_1x10_P1.50mm_Vertical | W401 |
| 1 | Conn_01x11 | JST_ZE_B11B-ZESK-1D_1x11_P1.50mm_Vertical | W402 |
| 1 | GREEN | LED_D3.0mm | LD402 |
| 1 | D_Zener_Dual_CommonAnode_KKA | SOT-23 | D401 |
| 1 | D_Dual_CommonCathode_AAK | SOT-23 | D402 |
| 1 | 100nF | C_0805_2012Metric | C401 |
| 1 | 1k | R_0805_2012Metric | R401 |
| 7 | 120 | R_0805_2012Metric | R402, R403, R404, R405, R406, R407, R408 |
| 1 | 100 | R_0805_2012Metric | R409 |
FRONT PWB design files
The KiCad project lives in the rgalland/PC-Engine_CDR-30A_Schematics repository on GitHub; these links point at the commit this page was built from.
FRONT PWB: common questions
How big is the FRONT PWB PCB?
The FRONT PWB measures 134.2 × 34 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the FRONT PWB?
24 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the FRONT PWB design files?
From the rgalland/PC-Engine_CDR-30A_Schematics repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the FRONT PWB design in my own project?
Yes, under the terms of its GPL-3.0 license, which rgalland chose for the repository.
