DECtalk DTC01
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- For more information, see this article's corresponding Wikipedia page: Device.
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
-
PSU Board -
Rifa caps -
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 to the right labelled "Parallel Caps Connection Diagram" |
| C5, C703 | 2 | 860160672008 | DigiKey |
Additional Images
-
Main logic board
Related Links