Coleco original main only
About the Coleco original main only PCB
Coleco original main only is an open source PCB design by sparkletron, published on GitHub under the MIT license. It is a 2-layer board measuring 168.4 × 214 mm, with 182 components from 68 distinct parts.
Other key parts include the Z80CPU, 27C256, SCM2114AL, 74LS138 and 74LS05. By type, the board carries 68 capacitors, 51 resistors, 23 ICs, 12 inductors, 5 transistors and 4 connectors.
From the project
Reverse engineering the original Colecovision video game console.
details: Reverse engineer original PCB to create a schematic and functional replacment board. This only includes the NTSC system.
This recreation of the PCB is for documenation, and reproduction purposes. This mimicks the PCB of the original NTSC revision F main board.
Special thanks to ChildOfCV. Using his as a check for mine after buzzing out my own board was a great help. His schematic on its own is a great resource.
Main components on the Coleco original main only
Coleco original main only bill of materials (BOM)
182 components, 68 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Z80CPU | DIP-40_W15.24mm_LongPads | U1 |
| 1 | 27C256 | DIP-28_W15.24mm | U2 |
| 2 | SCM2114AL | DIP-18_W7.62mm_LongPads | U3, U4 |
| 2 | 74LS138 | DIP-16_W7.62mm_LongPads | U5, U6 |
| 1 | 74LS05 | DIP-14_W7.62mm_LongPads | U7 |
| 1 | 74LS74 | DIP-14_W7.62mm_LongPads | U8 |
| 1 | TMS9928A | DIP-40_W15.24mm_LongPads | U9 |
| 8 | MK4116P | DIP-16_W7.62mm_LongPads | U10, U11, U12, U13, U14, U15, U16, U17 |
| 2 | 74LS541 | DIP-20_W7.62mm_LongPads | U18, U19 |
| 1 | SN76489AN | DIP-16_W7.62mm_LongPads | U20 |
| 1 | 74LS04 | DIP-14_W7.62mm_LongPads | U22 |
| 1 | 4066 | DIP-14_W7.62mm_LongPads | U23 |
| 1 | 74LS00 | DIP-14_W7.62mm_LongPads | U24 |
| 3 | 2N3906 | TO-92_Wide | Q2, Q3, Q6 |
| 2 | 2N3904 | TO-92_Wide | Q4, Q5 |
| 1 | 7.159090Mhz | Crystal_HC49-U_Vertical | Y1 |
| 1 | Conn_01x04 | Molex_KK-396_A-41791-0004_1x04_P3.96mm_Vertical | J0 |
| 1 | Cartridge Port | 55308412_coleco | J1 |
| 1 | Expansion Port | Colecovision_Expansion | J2 |
| 1 | Conn_01x08 | PinHeader_1x08_P2.54mm_Vertical | J4A1 |
Show 48 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 1N914 | D_DO-35_SOD27_P10.16mm_Horizontal | CR1, CR2 |
| 2 | MountingHole_Pad | SWITCH_MOUNT | H6, H7 |
| 5 | MountingHole_Pad | RF_MOUNT | H8, H9, H10, H11, H12 |
| 1 | SW_SPST | Coleco_RST | S1 |
| 1 | SW_DPDT_x2 | DPDT_GF-626-0061 | S2 |
| 2 | 22K | R_Array_SIP8 | UR25, UR26 |
| 2 | Jumper_2_Open | R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | WJ1, WJ3 |
| 1 | Jumper_2_Bridged | R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | WJ2 |
| 2 | Jumper_2_Bridged_32K_ROM | R_Axial_DIN0207_L6.3mm_D2.5mm_P15.24mm_Horizontal | WJ4, WJ5 |
| 4 | 10uH | L_Axial_L11.0mm_D4.5mm_P7.62mm_Vertical_Fastron_MECC | L2, L3, L4, L10 |
| 2 | 12uH | L_Axial_L12.8mm_D5.8mm_P25.40mm_Horizontal_Fastron_HBCC | L5, L6 |
| 2 | 120uH | L_Axial_L11.0mm_D4.5mm_P7.62mm_Vertical_Fastron_MECC | L7, L8 |
| 3 | 42uH | L_Axial_L11.0mm_D4.5mm_P7.62mm_Vertical_Fastron_MECC | L9, L15, L17 |
| 1 | 2.7uH | L_Axial_L11.0mm_D4.5mm_P7.62mm_Vertical_Fastron_MECC | L14 |
| 7 | 10nF | C_Disc_D7.0mm_W2.5mm_P5.00mm | C1, C57, C61, C65, C78, C98, C99 |
| 40 | 100nF | C_Disc_D7.0mm_W2.5mm_P5.00mm | C2, C5, C7, C8, C9, C10, C11, C12 +32 |
| 5 | 10uF | CP_Radial_D8.0mm_P5.00mm | C3, C16, C34, C36, C68 |
| 2 | 68pF | C_Disc_D7.0mm_W2.5mm_P5.00mm | C4, C70 |
| 4 | 47nF | C_Disc_D7.0mm_W2.5mm_P5.00mm | C60, C69, C101, C103 |
| 2 | 470pF | C_Disc_D7.0mm_W2.5mm_P5.00mm | C62, C63 |
| 2 | 120pF | C_Disc_D7.0mm_W2.5mm_P5.00mm | C64, C90 |
| 1 | 10uF | CP_Radial_D5.0mm_P2.50mm | C87 |
| 1 | 150pF_OPT | C_Disc_D7.0mm_W2.5mm_P5.00mm | C91 |
| 1 | 82pF | C_Disc_D7.0mm_W2.5mm_P5.00mm | C92 |
| 2 | 100pF | C_Disc_D7.0mm_W2.5mm_P5.00mm | C102, C104 |
| 1 | 10uF | CP_Radial_Tantal_D4.5mm_P2.50mm | C106 |
| 3 | 1K5 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R21, R25 |
| 2 | 820R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R6 |
| 1 | 91K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 9 | 3K3 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R10, R12, R14, R16, R17, R34, R35 +1 |
| 1 | 1M | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9 |
| 1 | 180R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11 |
| 1 | 1K1 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R13 |
| 1 | 2K7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R15 |
| 5 | 1K8 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R18, R19, R20, R55, R76 |
| 2 | 120R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R22, R23 |
| 2 | 100K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R24, R27 |
| 1 | 470R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R26 |
| 4 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R39, R61, R64, R78 |
| 3 | 390R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R40, R41, R42 |
| 4 | 10K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R43, R49, R70, R72 |
| 1 | 470K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R48 |
| 1 | 47R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R60 |
| 3 | 270R | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R62, R65, R67 |
| 3 | 22K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R69, R71, R77 |
| 1 | 4K7 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R73 |
| 1 | DNP | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R75 |
| 1 | 1K5_OPT | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R79 |
Coleco original main only design files
The KiCad project lives in the sparkletron/righteous_tentacle_colecovision repository on GitHub; these links point at the commit this page was built from.
Coleco original main only: common questions
How big is the Coleco original main only PCB?
The Coleco original main only measures 168.4 × 214 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Coleco original main only?
182 components, from 68 distinct parts. The full bill of materials is listed on this page.
Where can I download the Coleco original main only design files?
From the sparkletron/righteous_tentacle_colecovision repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Coleco original main only design in my own project?
Yes, under the terms of its MIT license, which sparkletron chose for the repository.
