Mitsumi KPQ-E99YC
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 | |
| Model no. | KPQ-E99YC |
|---|---|
| FCC ID | CMYKPQ4938 |
| Branding | Commodore, Unisys, and others |
| Manufacturer | Mitsumi |
| Layouts | 101-key US-ANSI, ISO |
| Keyswitches | Mitsumi KPQ Type |
| Interface | AT, PS/2 for Unisys boards |
The KPQ-E99YC is a standard PC keyboard manufactured by Mitsumi, and used by brands including Commodore and Unisys. It makes use of Mitsumi KPQ Type switches incorporated into a curved switch plate and a curved backplate. Therefore, all keycaps have the same height profile.
KPQ-E99YC was sold with no top branding, and Mitsumi's name on the rear label.[1] It was also provided as an OEM keyboard to systems manufacturers.
Contents
OEM versions
Commodore KPQ-E99YC
US-ANSI version with Commodore part number 312702-02 has Commodore's "inverted" colour scheme, i.e. the alphanumerical keys have a darker shade of grey than the modifier keys as it is often seen on Commodore keyboards.
ISO versions have been spotted with Commodore P/N 312473-XX and these appear to follow the standard colour scheme. In addition, at least the ISO-ES (Spanish) variety has been found using an AT/XT protocol switch.[2][3]
- US-ANSI version
Numpad. The LED shield is missing.
Without keycaps
Rubber sleeves of the Mitsumi KPQ Type switches. Note the yellow one for the space bar.
Side view of the backplane assembly
Curved metal backplate
Top view on the switches with the rubber sleeves removed
Keycaps in detail
Bottom side of the keycaps
Stabilizers
Same profile for all rows
Label on the back of the keyboard
Unisys PCK-101-KBD
Unisys PCK-101-KBD was sourced from multiple manufacturers, including Mitsumi. The keycaps on Unisys boards use lighter alphanumerics and a three shade beige colour scheme.
The blue domes are ~40 g, and yellow space bar domes ~50 g.
Unisys PCK-101 with a three tone colour scheme and PS/2 connector
With keycaps removed the domes and plungers are revealed. Bottom sides of the keycaps show the original three-tone colour scheme more clearly
Label on the back of the Unisys board, note the FCC part number not present on all E99YCs and the OEM manufacturer part number bottom right (KPQ-E99YC)
External links
- Geekhack — Commodore keyboards
References
- ↑ RecycledGoods.com — Mitsumi KPQ-E99YC Keyboard
- ↑ Google Photos — Teclado Commodore [Volatile reference] — photos of the Spanish version with the AT/XT switch on the back
- ↑ Amibay — Commodore PC keyboard like new [Volatile reference]
