Data General Walkabout G2753
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- For more information, see this article's corresponding Wikipedia page: Device.
Data General Walkabout G2753
| Preliminary Information | |
|---|---|
| Release Year | 1990 |
| Leak Risk | High |
| Batteries | AA, CR2032 |
| Mounting Technology | Through Hole, SMD, Sockets |
| Capacitor Types | Aluminum Electrolytic, Tantalum, Ceramic, Polymer |
| Destructive Entry | No |
A Data General portable terminal that can be powered off of 5 AA batteries or a 9V Negative Center power supply.
Known Issues
Speaker makes whining sound or display never turns on
Causes
- Logic board capacitors have failed
Solutions
- Recap
Disassembly Notes
There are no screws in the device. You will have to just pry the case apart as it uses plastic snaps.
Original Parts
Mainboard
NDG ADK-42000
107 0032046 02 207/02
Note: Mainboard does not have a silk screen with reference designators. Arbitrary one have been put onto the image above for this table.
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C1 | 1 | 56 µF | 35 V | Through Hole | 6mm | 11mm | 2.5mm | 105°C | Aluminum Electrolytic | Rubycon | GXA |
| C2, C3 | 2 | 56 µF | 16 V | Through Hole | 5mm | 11mm | 2.5mm | 105°C | Aluminum Electrolytic | Rubycon | GXA |
| C4 | 1 | 220 µF | 6.3 V | Through Hole | 6mm | 11mm | 2.5mm | -55-105°C | Aluminum Electrolytic | Rubycon | SSP |
| C5 | 1 | 470 µF | 6.3 V | Through Hole | 8mm | 11mm | 2.5mm | -55-105°C | Aluminum Electrolytic | Rubycon | SSP |
| C6, C7 | 2 | 120 µF | 16 V | Through Hole | 6mm | 11mm | 2.5mm | 105°C | Aluminum Electrolytic | Rubycon | GXA |
| C8 | 1 | 22 μF | 6.3 V | Through Hole | 4mm | 5mm | 4.5mm | 105°C | Aluminum Electrolytic | Rubycon | |
| C9, C10 | 2 | 100 μF | 16 V | Through Hole | 8mm | 11mm | 4mm | 105°C | Aluminum Electrolytic | Rubycon | PSX |
| C11 | 1 | 220 μF | 10 V | Through Hole | 8mm | 11mm | 4mm | 105°C | Aluminum Electrolytic | Rubycon | PSX |
Modem
118-5612-05
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C5 | 1 | 470 µF | 16 V | Through Hole | 10mm | 14 mm | 5 mm | Aluminum Electrolytic | Ark | ||
| C6, C7, C12, C24 | 4 | 10 μF | 25 V | Through Hole | 5mm | 11mm | 2 mm | Aluminum Electrolytic | Ark | ||
| C22 | 1 | 22 μF | 25 V | Through Hole | 5mm | 11mm | 2 mm | Aluminum Electrolytic | Ark | ||
| C13, C25, C15* | 3 | 10 μF | 16 V | Through Hole | 5 mm | Tantalum |
*C15 on board referenced appears to have short and blown up, based on the board layout it is likely the same as the other tantalum caps and has been marked as such
Replacement Parts
Mainboard
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| C1, C2, C3 | 3 | 50ZLJ56MT16.3X11 | Digikey |
| C4 | 1 | 25YXJ220M6.3X11 | Digikey |
| C5 | 1 | 10YXJ470M6.3X11 | Digikey |
| C6, C7 | 2 | 25YXJ220M6.3X11 | Digikey |
| C8 | 1 | EEA-GA1C220B | Digikey |
| C9, C10 | 2 | EEU-FR1C101B | Digikey |
| C11 | 1 | 16ZLH220MEFCTA6.3X11 | Digikey |
Modem
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| C13, C25, C15* | 3 | TAP106K025SRW / TAP106K025CCS / 178MU0024 | Digikey Mouser LCSC |
| C5 | 1 | 16ZLJ470MTA8X11.5 | Digikey |
| C6, C7, C12, C24 | 4 | UPS1E100MDD1TD | Digikey |
| C22 | 1 | UPW1V220MDD1TD | Digikey |
If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.
Kits
- Digikey BOM: https://www.digikey.com/