Differences

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--- keyboard:ibm_lpfk_48g9995 [11 Feb 2024 12:32] – added images delta_research
+++ keyboard:ibm_lpfk_48g9995 [15 Feb 2024 05:56] (current) – corrected some mistakes delta_research
@@ Line 1: / Line 1: @@
-=====IBM Light Program Function Keyboard 48G9995=====
+=====IBM Lighted Program Function Keyboard 48G9995=====
 <WRAP wfix right>
 |  **IBM LPFK 48G9995**  ||
-| placeholder ||
+| {{keyboard:48g9995_overview_1.jpg?300}} ||
 | **Manufacturer** | [[IBM]] |
 | **Switch** | [[switch:alps_skcl_yellow|Alps SKCL Yellow]] |
@@ Line 14: / Line 14: @@
 ===Description===
-The **IBM Lighted Program Function Keyboard** (Model 48G9995) was a keypad specifically designed and made for the MICRO CADAM computer program. It was manufactured for IBM Japan and was sold in Japan. The earliest known appearance is 1996.((ASK Keyboard Part Number Database - [[https://sharktastica.co.uk/kb?id=48G9995 | P/N 48G9995]]))
+The **IBM Lighted Program Function Keyboard** (Model 48G9995) is a keypad specifically designed and made for the MICRO CADAM computer program. It was manufactured for IBM Japan and was primarily sold in Japan. The earliest known appearance is 1996.((ASK Keyboard Part Number Database - [[https://sharktastica.co.uk/kb?id=48G9995 | P/N 48G9995]]))
 ===Construction===
 ==Case==
+The case is made out of black plastic painted a beige color.
 ==Internals==
+The switches used are [[switch:alps_skcl_yellow|Alps SKCL Yellow]], with amber or green LED's. They are clipped into a painted bent steel plate which is secured to the top case by two screws. There are 32 keys arranged in a six-by-six grid with the corners missing.
+A daughterboard with 18 chip sockets is connected to the main PCB via a ribbon cable. It is mounted with two steel brackets.
+The keyboard has an internal power supply that accepts 100-120v AC and 200-240v AC at 50-60hz.
+The main controller is a Mitsubishi M50734FP in the 72-pin configuration. The EPROM is an STM27C256B.
 ==Keycaps==
+The keycaps are doubleshot ABS, with one shot being transparent plastic. The keycaps have flat tops and an LED window. A common occurrence seems to be that the keycaps will crack, especially in the windowed area. It is presumably due to stress caused by the transparent portion being the keycap mount.
 ===Gallery===
@@ Line 60: / Line 71: @@
 keyboard:48g9995_keycap_2.jpg
 </gallery>
+{{tag>keyboard:sense-contact keyboard:protocol-unknown keyboard:keycaps-doubleshot keyboard:oem-ibm keyboard:layout-nonstandard wip}}