NEC JC-4301P3A / APC-H4311: Difference between revisions
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|Title = | |Title = | ||
|Picture = | |Picture = | ||
|Release Year = | |Release Year =1985 | ||
|Mounting Technology = | |Mounting Technology =Through hole | ||
|Capacitor Types = | |Capacitor Types =Aluminium Electrolytic, ceramic | ||
|Leak Risk = High | |Leak Risk = High | ||
|Batteries = None | |Batteries = None | ||
|Destructive Entry = No | |Destructive Entry = No | ||
}} | |Display Interface=DE-9 female connector, with switch for TTL or analog input, switch for automatic or manual input setting and DIP switches for colour palette size}} | ||
The JC-4101P3A is perhaps the first true multisync monitor. The APC-H4311 appears to be exactly the same monitor but with a model number to match the NEC APC IV PowerMate 1 desktop system unit it was paired with. | |||
== Known Issues == | == Known Issues == | ||
===Symptom or Problem Encountered=== | ===Symptom or Problem Encountered=== | ||
====Causes==== | ====Causes==== | ||
* | *Electrolytic capacitor failures due to normal aging. | ||
====Solutions==== | ====Solutions==== | ||
* | *Replace electrolytic capacitors | ||
== Disassembly Notes == | == Disassembly Notes == | ||
| Line 41: | Line 41: | ||
|PWE-107 (JC-1401P3A, 120V) | |PWE-107 (JC-1401P3A, 120V) | ||
PWE-142 (APC-H4311, 240V Australia?) | PWE-142 (APC-H4311, 240V Australia?) | ||
|Different | |Different boards, appears to depend on supply country voltage. | ||
|- | |- | ||
|Interface | |Interface | ||
Revision as of 12:42, 26 November 2024
- 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 | 
|
| This device is in the WorkNeeded:ReplacementParts category because it was flagged as missing information on replacement parts. If it has the original parts listed you may be able to search for replacements using the parametric searches available from parts distributors. If you have or make a list of replacement parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables | 
|
| Preliminary Information | |
|---|---|
| Release Year | 1985 |
| Leak Risk | High |
| Batteries | None |
| Mounting Technology | Through hole |
| Capacitor Types | Aluminium Electrolytic, ceramic |
| Destructive Entry | No |
| Hardware Specifications | |
| Display Interface | DE-9 female connector, with switch for TTL or analog input, switch for automatic or manual input setting and DIP switches for colour palette size |
| CRT Guides | |
| General Information · Repair Cautions | |
The JC-4101P3A is perhaps the first true multisync monitor. The APC-H4311 appears to be exactly the same monitor but with a model number to match the NEC APC IV PowerMate 1 desktop system unit it was paired with.
Known Issues
Symptom or Problem Encountered
Causes
- Electrolytic capacitor failures due to normal aging.
Solutions
- Replace electrolytic capacitors
Disassembly Notes
- Unplug power and data cables
- Turn rotating part of base through 180 degrees and slide off
- Remove fixed part of base by removing two screws
- Remove four corner screws holding rear of case to front of monitor
- Gently slide the rear of the case backwards. May need spludger to initially loosen.
- Four screws to remove rear access panel
- Three screws, one on each side panel and one near flyback, to remove top chassis/shielding
- Undo screws holding joint switching regulator and interface board assembly and disconnect leads before sliding assembly upwards
Original Parts
There are a number of different boards found in the monitor
| Purpose | Designation | Notes |
| Switching Reg | PWE-107 (JC-1401P3A, 120V)
PWE-142 (APC-H4311, 240V Australia?) |
Different boards, appears to depend on supply country voltage. |
| Interface | PWE-110 | |
| Deflection | PWE-105 | |
| Control | PWE-125A | |
| LED | PWE-125B | |
| Video | PWE-122 | |
| CRT | PWE-123 | |
| Tube | 370HYB22-TC126 (PN2) | May differ, depending on...? |
PWE-110 Interface
Capacitor Specifications and Footprint Information
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
PWE-142 Switching Regulator
| RefDes | Qty | Capacitance | Voltage | Mount | Diameter/Size | Height | Lead Spacing | Temp | Type | Brand | Series |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 µF | 0 °C |
Replacement Parts
Basic PCB Name
| 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.