| Number | front/back | Inscription | Description |
| U1 | F | Z8S180 | CPU, Zilog |
| U2 | F | 42069 | OS-ROM, probably 27c1001, 128K*8, Amstrad |
| U3 | F | KM681000ALT-8L | RAM, 128K*8, static, Hyundai/Samsung |
| U4 | F | HD64610FP | RTC, Hitachi |
| U5 | F | 41857 | ???, Amstrad |
| U6 | F | HC157A | Quad Channel 2 Multiplexer, Motorola |
| U7 | B | HC157A | Quad Channel 2 Multiplexer, Motorola |
| U8 | B | HC157A | Quad Channel 2 Multiplexer, Motorola |
| U9 | F | HC157A | Quad Channel 2 Multiplexer, Motorola |
| U10 | B | HC245A | Octal Bus Transceiver, Motorola |
| U11 | B | KM62256BLG-10L | RAM 32K*8, Samsung |
| U12 | F | HD64646 | LCD-Controller, Hitachi |
| U16 | B | HC00A | Quad Dual-Input-Nand, Motorola |
| U20 | B | 14052B | Analog Multiplexer |
| U21 | F | MAX731 | 5V Step Up Converter, Maxim |
| U22 | B | 7673/CBA/L327 | ???, 8 Pin |
| U23 | B | HC00A | Quad Dual-Input-Nand, Motorola |
| U24 | F | 41864 | ???, Amstrad |
| U25 | F | MAX641 | 5V Step Up Converter, Regulator, Maxim |
| U26 | B | not readable | ???, 14 pin |
| U27 | F | LP324M | Quad OA |
| U28 | B | MC145053D | AD-Converter, Motorola |
| U30 | F | MAX222 | RS232 Driver/Receiver, Maxim |
| U31 | F | 41863 | ???, Amstrad |
| U32 | F | HC574 | Octal D-Flip-Flop, TI |
| U33 | F | KM62256BLG-10L | RAM 32K*8, Samsung |
| U35 | F | TCM5089 | Tone Dialer |
| U36 | F | not readable (25N 318T 061AC?) | ???, 8 Pin, TI |
| U37 | F | HC20 | Dual Quad-Input Nand, Motorola |
| U41 | B | HC541 | Octal Bus Buffer, TI |
| U42 | B | HC541 | Octal Bus Buffer, TI |
| U43 | F | HC541 | Octal Bus Buffer, TI |
© 2003 Thomas Müller
Last Update: August 18th, 2003