DECtalk DTC01
- For more information, see this article's corresponding Wikipedia page: Device.
| This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables | 
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DECtalk DTC01
| Preliminary Information | |
|---|---|
| Release Year | 1984 |
| Leak Risk | High (Rifa) |
| Batteries | Maybe? |
| Mounting Technology | Through Hole, Sockets |
| Capacitor Types | Aluminum Electrolytic, Paper, Ceramic |
| Destructive Entry | No |
DECtalk DTC01 is the first model of DECtalk available and has a large amount of components inside to make it work.
Known Issues
Made with Rifa Caps
Causes
- It go boom
Solutions
- Remove/Replace caps
Disassembly Notes
Needs philips and flat drives to get cases open but RF shield is tooless
Original Parts
Power Supply
AA12242
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PSU Board
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Rifa caps
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PSU pinout and rails
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C1, C35 | 2 | 0.1 µF | 250V | Through Hole Radial | 20mm | X Line Filter | Rifa | ||||
| C2 | 1 | 0.22 µF | 250V | Through Hole Radial | 20mm | X Line Filter | Rifa | ||||
| C25 | 100 | 25 V | Through Hole Radial | Aluminum Electrolytic | |||||||
| 470 | 10 V | Through Hole Radial | Aluminum Electrolytic |
Main Board
RefDes according to schematic
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C12, C13, C35-C80, C101-C103, C105-C107 | 54 | .047 | 50 V | Through Hole | Ceramic | ||||||
| C14 | 1 | .1 | 50 V | Through Hole | Ceramic | ||||||
| C17 | 1 | .01 | 100 | Through Hole Axial | Mylar | ||||||
| C81, C100, C104 | 3 | 100 | 25 V | Through Hole Axial | 85 | Aluminum Electrolytic | Nichicon | ||||
| C800, C801 | 2 | 190 | 12 V | Through Hole Axial | 85 | Aluminum Electrolytic | Nichicon | ||||
| C5, C703 | 2 | 8 | 25 V | Through Hole Axial | 85 | Aluminum Electrolytic | Nichicon |
Replacement Parts
Main Board
RefDes according to schematic
| RefDes | Qty | Compatible Part Number | Order Links | Notes |
|---|---|---|---|---|
| C81, C100, C104 | 3 | 107TTA025M | DigiKey | |
| C800, C801 | 2 | You will need both 106TTA035M and 860020373009 | 106TTA035M (DigiKey) 860020373009 (DigiKey) 106TTA035M (Mouser) 860020373009 (Mouser) | See picture below labelled "Parallel Caps Connection Diagram" |
| C5, C703 | 2 | 860160672008 | DigiKey |
Additional Images
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Main logic board
Related Links