Schematic
Lloyd's 310 Calculator: Reverse-Engineered Schematic
Schematic of the Lloyd's 310 pocket calculator with a nine-digit fluorescent tube.
Schematic
Schematic of the Lloyd's 310 pocket calculator with a nine-digit fluorescent tube.
14 8• 68K L L6 Sa Sa FUTABA 9-CT-08-5J 4 3 9 DIGIT VACUUM FLOURESCENT R Sb Sb DISPLAY MODULE 5 4 R8 5 SUMIDA R Sc Sc DCT-04 –?V 6 L a 6 0.47 Sd Sd 6V 3.9K 7 50V f b +tip 33 1 L g C711 Se Se 10V 22K 8 7 e c C1210 2 L 4• Sf Sf p 9 d AA 10 25V R Sg Sg 10 POWER [nv] 8 2K V–G R 2 ?V 4.7 Sp Sp 3 1 470p 9 50V 23 D9 D1 V–D L L L L R R R R R V–D 150K Mitsubishi 9• V–G M58618-81P 68K ØD9 22 n.c.: ØD8 2 19 20,21,25,26 each ØD7 key 18 ØD6 17 1 1 2 3 4 5 6 7 8 KC1 ØD5 3 16 28 ØD4 9 +/– MC % MR . C 0 KC2 15 4 ØD3 27 13 + – ÷ = CE M– M+ KC3 5 ØD2 12 12 13 10 11 9 8 7 6 ØD1 11 24 V–D V–G Notes • Capacitance in microfarads unless otherwise specified. • Based on unit with Serial No. 5H-82004. • 2020 Feb: Initial drawing / bhilpert. Lloyd’s Accumatic 310 Calculator Page: 1 / 1 Printed: 2020 Feb 14