HardLabs

V9958AdapterTC01

Board-Folk·Einstein-TC-01·Expansions/V9958AdapterTC01/Kicad/V9958AdapterTC01.kicad_pcb

V9958AdapterTC01 PCB layout, top view — open source board by Board-Folk

About the V9958AdapterTC01 PCB

V9958AdapterTC01 is an open source PCB design by Board-Folk, published on GitHub. It is a 2-layer board measuring 131.1 × 91.4 mm, with 44 components from 18 distinct parts.

By type, the board carries 16 resistors, 12 capacitors, 4 transistors, 2 connectors, 1 module and 1 crystal.

From the project

Tatung Einstein TC-01

Adapter board to allow the use of a Yamaha V9958 or V9938 VDP chip on the Tatung Einstein TC-01. The board requires 192KB RAM, as 6 of 4464 (41464) RAM chips, to make the video capability of the board same as (or better than) the Einstein 256, and works with the ROM from that machine, e.g. XTAL MOS 2.1.

The board plugs into the existing VDP socket, replacing the original TMS VDP chip, and connects to video output by replacing the jumpers at M100/101 outputting RGB to the socket on the back of the TC-01. This disconnects the other video circuitry and RF output on the main board, that being…

V9958AdapterTC01, from the project README
From the project README

V9958AdapterTC01 bill of materials (BOM)

44 components, 18 distinct parts.

QtyPartRefs
1
M100/101
M100
4
BC547
Q150, Q151, Q152, Q153
1
21.47727MHz
X170
1
VDP PLUG
J150
1
A1 & /WAIT
J153
1
V9958
I160
6
TMS4464
I170, I171, I172, I173, I174, I175
1
5V
D150
6
100nF
C150, C151, C152, C153, C154, C155
1
220uF
C156
3
1uF
C157, C158, C159
2
27pF
C170, C171
3
1K
R150, R154, R158
3
10K
R151, R152, R153
3
1K8
R155, R156, R157
3
470R
R159, R160, R161
1
100R
R162
3
12K
R163, R164, R165

V9958AdapterTC01 design files

The KiCad project lives in the Board-Folk/Einstein-TC-01 repository on GitHub; these links point at the commit this page was built from.

V9958AdapterTC01: common questions

How big is the V9958AdapterTC01 PCB?

The V9958AdapterTC01 measures 131.1 × 91.4 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the V9958AdapterTC01?

44 components, from 18 distinct parts. The full bill of materials is listed on this page.

Where can I download the V9958AdapterTC01 design files?

From the Board-Folk/Einstein-TC-01 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the V9958AdapterTC01 design in my own project?

The repository has no license, so all rights stay with Board-Folk. Use it as a reference, and ask the author before reusing the design.

More boards in Einstein-TC-01