SIEL Mono --------- DESCRIPTION These are the schematics of the SIEL Mono, scanned at 300 DPI. Some parts are hard to read but the original is not exactly spotless either. Drop me a mail if you're having trouble, I'll help you if I can. Still missing : implantation diagram (probably not very useful), user's manual (almost useless). PARTS LIST Power supply (PC 440.99.0105) | Contact board (PC 440.99.0184) | ICa1 ľA79MG | ICc1 M110 ICa2 ľA78MG | ICc2 1458 ICa3 ľA79MG | ICc3 TL082 ICa4 ľA78MG | ICc4 LM3046[1] | ICc5 4013 Filters board (PC 440.99.0185) | ICc6 4001 | ICc7 4069 ICf1 TL082 | ICc8 4016 ICf2 4011 | ICc9 4016 ICf3 4016 | ICc10 CA3080 ICf4 4016 | Tc1 2N5771 ICf5 4016 | ICf6 4016 | Logic board (PC 440.99.0186) ICf7 4016 | ICf8 3302 | ICg1 4071 ICf9 4013 | ICg2 4001 ICf10 TDA1022 | ICg3 4049 ICf11 4016 | ICg4 4013 ICf12 1458 | ICg5 4049 ICf13 1458 | ICg6 4001 ICf14 LM13600 | ICg7 4025 ICf15 LM13600 | ICg8 4071 ICf16 4016 | ICg9 4001 ICf17 CA3080 | ICg10 4075 | ICg11 4071 | ICg12 4049 All PNP transistors BC416 unless otherwise indicated. All NPN transistors BC173 unless otherwise indicated. All diodes 1N4148 unless otherwise indicated. All red LEDs FL V 117. All green LEDs LT 233. [1]LM3046 On mine (S/N 190/156), ICc4 is not an LM3046 but an FUA3086DC; 8116 KOREA in a 14-pin cerdip package. That would be Fairchild's version of the CA3086/LM3086 which is an untested CA3046/LM3046. BOARD-TO-BOARD CONNECTORS contacts_1 contacts_2 controls logic main A1: - top - - - A2: - top - top - A3: - top - top - A4: - top - top - A5: - top - top - A6: - top - top - contacts_1 contacts_2 controls logic main B1: - - bottom left - B2: - - bottom top - B3: - - bottom - - B4: - - bottom right - B5: - - bottom right - B6: - - bottom top - contacts_1 contacts_2 controls logic main C1: - - top top - C2: - - bottom right - C3: - - top right - C4: - - top right - C5: - - bottom right - C6: - - top top - contacts_1 contacts_2 controls logic main D1: - - - right right D2: - - - right right D3: - - - right right D4: - - - right bottom D5: - - - right left D6: - - - right left contacts_1 contacts_2 controls logic main E1: - - - right top E2: - - - right top E3: - - - right left E4: - - - left top E5: - - - right top E6: - - - right left contacts_1 contacts_2 controls logic main F1: - - - right top F2: - - - right top F3: - - - right top F4: - - - right bottom F5: - - - right bottom F6: - - - left left contacts_1 contacts_2 controls logic main G1: - - - top right G2: - - - top bottom G3: - - - right bottom G4: - - - right bottom G5: - - - left bottom G6: - - - left bottom contacts_1 contacts_2 controls logic main H1: - - - left bottom H2: - - - top - H3: - - - top - H4: - - - top - H5: - - - top - H6: - - - top - contacts_1 contacts_2 controls logic main I1: right - - right - I2: bottom - - right - I3: right - - right - I4: right - - right - I5: right - - left - I6: bottom - - left - contacts_1 contacts_2 controls logic main L1: bottom - - - left L2: bottom - - - - L3: bottom - - - - L4: bottom - - - - L5: bottom - - - - L6: bottom - - - - contacts_1 contacts_2 controls logic main M1: right - bottom - - M2: right - top - - M3: right - top - - M4: right - top - - M5: top - top - - M6: top - top - - contacts_1 contacts_2 controls logic main N5: right - top - - N6: right - top - - contacts_1 contacts_2 controls logic main O1: right - - - left O2: bottom - - - left O3: right - - - left O4: right - - - left O5: right - - - bottom O6: top - - - top contacts_1 contacts_2 controls logic main P1: bottom - - - left P2: right - - - top P3: right - - - top P4: right - - - top P5: right - - - top P6: right - - - top contacts_1 contacts_2 controls logic main Q1: - - top - - Q2: - - top - right Q3: - - top - - Q4: - - top - right Q5: - - bottom - - Q6: - - top - bottom contacts_1 contacts_2 controls logic main R1: - - top - left R2: - - top - left R3: - - top - left R4: - - top - bottom R5: - - top - left R6: - - top - right contacts_1 contacts_2 controls logic main S1: - - - - bottom S2: - - - - bottom S3: - - - - bottom S4: - - - - bottom S5: - - - - bottom S6: - - - - bottom ERRATA & NOTES contacts_1.png According to a Mono owner named Jesper, the keyboard diodes are backwards in the schematics. He realised this while MIDIfying his : http://www.electronic-obsession.se/studio/mono/mono.html main.png In the VCF high pass output there is a missing connection between the line going from Rf103 to Rf112 and the line going from Rf102 to Rf104. The correct schematic is : Rf101 B o-----+--^v^v-- | 560k | | Rf102 | --^v^v--+ 12k | Rf112 Rf103 | ---^v^v--- C o-----+--^v^v--+ | 47k | | 180k | | _ | | Rf104 | | 6| -_ | --^v^v--+--+--|- -_7 | 8k2 |ICf13--+--o HP Rf105 --+--|+ _- A o--------^v^v--+ | 5|_- 47k | | Rf106 | < --^v^v--+ > Rf113 | 390k | < 3k9 | Rf107 | | D o-----+--^v^v--+ | 68k | < Rf108 Rf109 | T Pf4 LP o--^v^v--^v^v-- < 2k2 220k 12k | _|_ This is http://www.teaser.fr/~amajorel/mono/schematics/README, last updated AYM 2010-04-12.