GX700-PWB
About the GX700-PWB PCB
GX700-PWB is an open source PCB design by NaokiS28, published on GitHub. It is a 2-layer board measuring 147.5 × 100 mm, with 121 components from 18 distinct parts.
Other key parts include the 74LS244, 74LS273 and 74LS175. By type, the board carries 36 capacitors, 6 connectors, 5 ICs, 5 resistors and 3 jumpers.
From the project
Schematics and pinout information for the Konami System 573
It consists of a 16V8 PAL, 1x 74LS245 for converting the 3.3v PSX bus to 5v and 3x 74LS273s and a 74LS175 acting as output latches. It has a very basic function, you write a byte to a corrosponding point in memory and it gets latched to the outputs. (todo: add locations).
The logic chips drive PC817 opto-isolators which are protected by capacitors (10nf) and line filters (10nf LCL).
Main components on the GX700-PWB
GX700-PWB bill of materials (BOM)
121 components, 18 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS244 | DIP-20_W7.62mm | U1 |
| 3 | 74LS273 | DIP-20_W7.62mm | U3, U14, U34 |
| 1 | 74LS175 | DIP-16_W7.62mm | U9 |
| 2 | 573_EXP | JAE-TX15-80P | CN31, CN32 |
| 3 | B10PSHF1A | PinSocket_1x10_P2.54mm_Vertical | CN33, CN34, CN35 |
| 1 | B6PSHF1AA | PinSocket_1x06_P2.54mm_Vertical | CN36 |
| 28 | PC817 | DIP-4_W7.62mm | 3A1, 3B1, 3C1, 3D1, 3E1, 3F1, 3G1, 3H1 +20 |
| 1 | GAL16V8 (X700F1) | DIP-20_W7.62mm | 10H1 |
| 32 | EMI_Filter_LCL | PinSocket_1x03_P2.54mm_Vertical | FL1, FL2, FL3, FL4, FL5, FL6, FL7, FL8 +24 |
| 3 | Jumper_2_Open | PinSocket_1x02_P2.54mm_Vertical | JP1, JP2, JP3 |
| 2 | 4.7k | R_Array_SIP9 | RA2, RA3 |
| 3 | 470 | R_Array_SIP9 | RA4, RA5, RA7 |
| 28 | 20n | C_Axial_L3.8mm_D2.6mm_P7.50mm_Horizontal | C1, C2, C3, C4, C5, C9, C11, C12 +20 |
| 6 | 1uf | C_Axial_L3.8mm_D2.6mm_P10.00mm_Horizontal | C6, C7, C8, C14, C17, C18 |
| 1 | 330u16v | CP_Radial_D8.0mm_P3.50mm | C10 |
| 1 | 330u16v | CP_Radial_D8.0mm_P2.50mm | C15 |
| 4 | 4.7k | R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R11, R12, R13, R14 |
| 1 | 470 | R_Array_SIP9 | RN6 |
GX700-PWB design files
The KiCad project lives in the NaokiS28/Konami-System-573-Documentation repository on GitHub; these links point at the commit this page was built from.
GX700-PWB: common questions
How big is the GX700-PWB PCB?
The GX700-PWB measures 147.5 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the GX700-PWB?
121 components, from 18 distinct parts. The full bill of materials is listed on this page.
Where can I download the GX700-PWB design files?
From the NaokiS28/Konami-System-573-Documentation repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the GX700-PWB design in my own project?
The repository has no license, so all rights stay with NaokiS28. Use it as a reference, and ask the author before reusing the design.
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