Atari SC1224
Atari SC1224
| Preliminary Information | |
|---|---|
| Release Year | 1986 |
| Leak Risk | Medium |
| Batteries | None |
| Mounting Technology | Through Hole |
| Capacitor Types | Aluminum Electrolytic, Tantalum, Ceramic |
| Destructive Entry | Cutting silicone on neck socket |
| CRT Guides | |
| General Information · Repair Cautions | |
The SC1224 is a lower resolution color monitor for the Atari ST line of computers. "SC1224" was more of a feature set designation than an actual model though because there were multiple versions of the display made by different manufactures. So be sure that the one you may be working on is the same as what may be listed here.
Known Issues
Black Screen
Causes
- Suspected cap failures on neck board
Solutions
- recap
Disassembly Notes
CRT neck is glued with silicone to the socket. Cutting it and pulling it out will let you remove it but there are still wires soldered directly to the board. - More info
Original Parts
Gold Star CRT Neck Board
Gold Star, P/N 111-705A, 94V-0, GSEP-2112
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|
| C514, C513, C512 | 3 | 1uF | 160V | Through Hole Radial | 6.3mm | 85C | Aluminum Electrolytic | Korea Chemi-con | M / SM ? |
| C504, C506 | 2 | 10uF | 16V | Through Hole Radial | 5mm | 85C | Aluminum Electrolytic | Korea Chemi-con | M / SM ? |
| C511 | 1 | 10uF | 160V | Through Hole Radial | 10mm | 85C | Aluminum Electrolytic | Korea Chemi-con | M / SM ? |
| C501 | 1 | 10uF | 16V | Through Hole Radial | 5mm | 85C | Aluminum Electrolytic | Samhwa | SA |
Gold Star Power Supply
Gold Star, P/N 111-694A, 94V-0, GSEP-2112
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|
| C904 | 1 | 330uF | 250V | Through Hole Radial | 30mm | 105C | Aluminum Electrolytic | Ace | M / TS NH ? |
| C942, C943 | 2 | 1000uF | 25V | Through Hole Radial | 16mm | 85C | Aluminum Electrolytic | Samyoung | M / SM |
| C906, C931 | 2 | 100uF | 50V | Through Hole Radial | 10mm | 85C | Aluminum Electrolytic | Samyoung | M / SM |
| C941 | 1 | 47uF | 160V | Through Hole Radial | 16mm | 85C | Aluminum Electrolytic | Samhwa | HR |
| C923 | 1 | 47uF | 10V | Through Hole Radial | 5mm | 85C | Aluminum Electrolytic | Samyoung | M / SM |
| C912 | 1 | 10uF | 50V | Through Hole Radial | 5mm | 85C | Aluminum Electrolytic | Samyoung | M / SM |
| C913 | 1 | 100uF | 10V | Through Hole Radial | 6mm | 85C | Aluminum Electrolytic | Samyoung | M / SM |
Replacement Parts
Gold Star CRT Neck Board
The parts picked here are all higher temp capacitors which are highly recommended when replacing neck board caps due to the proximity to the cathode heater.
| RefDes | Qty | Compatible Part Number | Order Links | |
|---|---|---|---|---|
| C514, C513, C512 | 3 | UPS2C010MED1TD | Digikey | 🔎 |
| C504, C506, C501 | 3 | UPS1C100MDD | Digikey | 🔎 |
| C511 | 1 | UCA2C100MPD1TD | Digikey | 🔎 |
| Full BOM | Digikey | |||