PC-9821N-U01: Difference between revisions
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{{InfoboxDevice | {{InfoboxDevice | ||
|Title = | |Title = PC9821N-U01 Power Supply | ||
|Picture = | |Picture = | ||
|Release Year = | |Release Year = 199X | ||
|Mounting Technology = Through Hole | |Mounting Technology = Through Hole | ||
|Capacitor Types = Aluminum Electrolytic | |Capacitor Types = Aluminum Electrolytic, Ceramic, Polymer | ||
|Leak Risk = Medium | |Leak Risk = Medium | ||
|Batteries = None | |Batteries = None | ||
|Destructive Entry = No | |Destructive Entry = No | ||
}} | |Input Voltage=100V AC}} | ||
Power supply for multiple PC-9821 ノート (notebook) computers. | |||
== Known Issues == | == Known Issues == | ||
=== | ===Computer won't power on, sometimes LEDs flash for a moment.=== | ||
====Causes==== | ====Causes==== | ||
* | *Leaking capacitors | ||
====Solutions==== | ====Solutions==== | ||
* | *Clean PCB and replace capacitors | ||
== Disassembly Notes == | == Disassembly Notes == | ||
There is a screw hidden under the label. Note that it is a Japanese screw, so if you don't have Japanese screwdrivers be careful not to strip it with a Philips head. | |||
After removing the screw the sides are clipped together. | |||
Once inside the PSU is surrounded by a metal shield and plastic insulation. Desolder the metal part from the PCB, and remove the nut and screw for the heatsink. It will then slide off. | |||
== Original Parts == | == Original Parts == | ||
=== | === Tonkin PCB === | ||
[[File:PXL 20250315 212652873.jpg|thumb|PCB underside]] | |||
[[File:PXL 20250315 212721073.jpg|alt=|thumb|Capacitors 1]] | |||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
|+Capacitor [[Capacitor Specifications|Specifications]] and [[Part Footprints|Footprint]] Information | |+Capacitor [[Capacitor Specifications|Specifications]] and [[Part Footprints|Footprint]] Information | ||
| Line 42: | Line 45: | ||
!Series | !Series | ||
|- | |- | ||
|C7 | |||
|1 | |||
|270 µF | |||
|200 WV | |||
|Snap In | |||
|22mm | |||
|25mm | |||
|10mm | |||
|105 °C | |||
|Electrolytic | |||
|Nichicon | |||
|GQ (M) | |||
|- | |||
|C11 | |||
|1 | |||
|33 µF | |||
|35V | |||
|TH radial | |||
|5mm | |||
|12mm | |||
|2.54mm | |||
|105 °C | |||
|Electrolytic | |||
|Nichicon | |||
|CE-DF | |||
|- | |||
|C201 | |||
|1 | |||
|33 µF | |||
|35V | |||
|TH radial | |||
|5mm | |||
|12mm | |||
|2.54mm | |||
|105 °C | |||
|Electrolytic | |||
|Nichicon | |||
|VZ (M) | |||
|- | |||
|C208, unlabelled | |||
below it | |||
|2 | |||
|1 µF | |||
|50V | |||
|TH radial | |||
|5mm | |||
|11mm | |||
|2.54mm | |||
|105 °C | |||
|Electrolytic | |||
|KME | |||
| | | | ||
| | |- | ||
| | |C102, C103, C104, C105 | ||
| | |4 | ||
| | |300 µF | ||
| | |25V | ||
| | |TH radial | ||
| | |8mm | ||
| | |20mm | ||
| | |3.5mm | ||
| | |105 °C | ||
| | |Electrolytic | ||
|Nichicon | |||
|PL (M) | |||
|} | |} | ||
==Replacement Parts== | ==Replacement Parts== | ||
=== | ===Tonkin PCB=== | ||
{| class="wikitable sortable" | {| class="wikitable sortable" | ||
|+Capacitors | |+Capacitors | ||
| Line 73: | Line 129: | ||
===Kits=== | ===Kits=== | ||
* | * None | ||
== Related Links == | == Related Links == | ||
* | * None | ||
== References == | == References == | ||
Revision as of 13:46, 16 March 2025
PC9821N-U01 Power Supply
| Preliminary Information | |
|---|---|
| Release Year | 199X |
| Leak Risk | Medium |
| Batteries | None |
| Mounting Technology | Through Hole |
| Capacitor Types | Aluminum Electrolytic, Ceramic, Polymer |
| Destructive Entry | No |
| Power Requirements | |
| Input Voltage | 100V AC |
Power supply for multiple PC-9821 ノート (notebook) computers.
Known Issues
Computer won't power on, sometimes LEDs flash for a moment.
Causes
- Leaking capacitors
Solutions
- Clean PCB and replace capacitors
Disassembly Notes
There is a screw hidden under the label. Note that it is a Japanese screw, so if you don't have Japanese screwdrivers be careful not to strip it with a Philips head.
After removing the screw the sides are clipped together.
Once inside the PSU is surrounded by a metal shield and plastic insulation. Desolder the metal part from the PCB, and remove the nut and screw for the heatsink. It will then slide off.
Original Parts
Tonkin PCB
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| C7 | 1 | 270 µF | 200 WV | Snap In | 22mm | 25mm | 10mm | 105 °C | Electrolytic | Nichicon | GQ (M) |
| C11 | 1 | 33 µF | 35V | TH radial | 5mm | 12mm | 2.54mm | 105 °C | Electrolytic | Nichicon | CE-DF |
| C201 | 1 | 33 µF | 35V | TH radial | 5mm | 12mm | 2.54mm | 105 °C | Electrolytic | Nichicon | VZ (M) |
| C208, unlabelled
below it |
2 | 1 µF | 50V | TH radial | 5mm | 11mm | 2.54mm | 105 °C | Electrolytic | KME | |
| C102, C103, C104, C105 | 4 | 300 µF | 25V | TH radial | 8mm | 20mm | 3.5mm | 105 °C | Electrolytic | Nichicon | PL (M) |
Replacement Parts
Tonkin PCB
| RefDes | Qty | Compatible Part Number | Order Links |
|---|---|---|---|
| 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
- None
Related Links
- None