Manual / Guide · c. 1970

Monroe 925 Logic and Timing Manual

Monroe's logic and timing manual for the 925 Nixie calculator.

Author: Monroe
Year: c. 1970
Type: Manual / Guide
Credit: Scan: Rick Bensene, Old Calculator Web Museum, oldcalculatormuseum.com.

MODEL 925 LOGIC & TIMING CHARTS TABLE OF CONTENTS PS MAREE AT ga ee ws et we PRUE OEE |g oe 4 6: om I el ws aa FLOW CHART, ENTRY, ADD & SUB. ....... Pid COAST MET oe es ee Pie GT BS os ed a cs BS B® Be REGIIRIGE aw laud! Gece ees mp. pubelten SOE OE ENDICATION CIRCUIT... + 6 4 vw 8 eee OSG, Fis; PERT 5 46 es Uh see A PORE TO xe o's Ww, gon s- ae Slw kOe awe FMLT, FDIV, FOF, FJ, FN& FG ........, BG) BOP we oe eo sede we ee ee ee CONTROL COUNTER, . . 15s ss es 08 ww % Gite GARCUET 5 ge ws woe lle ome we ee Wilts & AEA AMY. wey kre et ee ADDER & FAD . = 4 es POWER SUPPLY CIRCUIT (115V UL) ....... POWER SUPPLY CIRCUIT (EXCEPT 115V UL)... . TRANSFORMER TERMINAL DIAGRAM. ....... TIMING CHART ENTRY-l1.........4... TIMING CHART ENTRY-2 . TIMING CHART ADD & SUB. .........., TIMING CHART MLT-1 ...........2.. TIMING CHART MLT-2........0..24.2044-4 TIMING CHART DIV-l............. TIMING CHART DEV62 , 2 6 ws & wie ® ew ws TIMING CHART DIV-3 .....0..66565%4 866% TIMING CHART DIV-4 . =... 5% 282 4%) em BIQCK DIAGMAM, 2 6k sek EK a OANA MNAWDHE NNNNNNNNNEP REPKE BE EPP eee ONAMERWNHEFPOWMDYNAUAWNHO LINDUID DISN07 OI CH 3n0 TL0(€00L ~SFX)OZLENS C TLL OOULNS JLO(L00L-~SIXIESSPENS 4 f — | 22A 7240+ eT Ly 7 |S gnduz fj bli i) ff) ff ff PP an». | OND 0—9—w ie 400 OS! al LE pnduy y, ‘ ( ISSONS FL40(Z00L~-S9 X) LE bE NS ley [eq Te ASOT | 4 ESSYN PS SUNS 3058 fel fa ™M JFLLIWN0L-59X) OOVL NS esis JLO(¥OOL~ 59) 9SSP NS 4 " gndut ILO (006 ~$9%) SZ bE NS OZbENS es IEbENS © rssens 0 Cy GL ey led ed SZBENS = si 2A 4SL) LYVHD SONIWIL w—- —- — — @y WY OV g j----WW'Ww ----'@ ‘q |------ Wa ty ty WY WwW @ Pols wvye- — — Wow W @ |----‘% ‘zr ---~- ‘9 ‘@ = | ------ fy @ ty WW YW g Cre Ss vy — — — WWeb @ j----Wily ---- ‘@'g | ------ vy ga VW Wey Ww @ ILS wv -_—- — — W2vy 'y @ |---- WO” ---~ ‘9'g ----—- $y @G@ W YY 'hy OY @ OLS zm IM ogy 009 ie] sw GOS wog WH (wow ww g) =m (ose}t rav oy F id v Vv ‘ov oy oy oy oor p54 —>| 2] W x I B Ww i wv 1M A t Xi fi i sh) (OSL! 10g # I i) g oy | A | |W) zy ie | py al] wiley |'y |! ¢ ngs | aa a Oud K\ HY ov 148 |W ew | Be | ow |, W ley |v lo (Z4W/) M-dd UU UU unt ULL ZHNVOS) Y-dI Lier WT eerie rl PPLE LL EL Egagtata Baas sub [—var00/) J ae 2 FJ 7 oss! » Tea ay ee Ree fo 24 = EL c ef OSL 8-9 = z / * 7 (OSL om EOL ahs zgol whe 1G —— -—»e———— 99.1 ——_—_ +> ¢9141. ——- + — 1OL — OOL OLIS ELIS Q@NS 8 GGV ‘AYLNS LYVHO MOT NolLvEns —NOILIGGY {(WY +X dN) Aan} Avi v2) - [ev-a-o| |ev=-a+ov | 49) { l >99) ~< v=o @=- as 299 ~ + 199 5 AIOS.11 01 <a 7 >099 hay AP) >a (Avtasia) . \ Avidsia C LW LYVHD MOTI s 992 » 999 AW BNS.GOY OL » £92 Ald LYVHD M013 b-2d AST 2~0Y $9) ? LII >999 299 S199 LINIBID AI» co Aid LIOR ¢ =x at Hi Fea) ~ feo] — ove [ee] |= [I~ levee foo] Peeve be] [- le eho | 2 Me | Pov Q | — = 1249” I eZ.) bly A+ =X 4 2s.) 6148 OAS SM dt a2] 7 ba 2A A+ aval ON ZM 12.5 2vz0 4 L4 bly on 2+ oH im 72° by — 1v7o 9H ut bte oA 2A+ Pz.) 7 yy 4 - ae fs es ot ‘| by Fes yy be e-+-F— , 64 WU e+ } are ae ne jue Pail) ID a » ets oe 9920 LP ae Cy a = 2T 6 uy —P zo; 77 bie <5 — —z $920 ro) ae ee! d 2 a q b> & | —_ 102 #4 zaeo] SCS - bm oR ae | 4 — wa20 ee SA A =| ies Bical sco] me fz a | a Lazo et 24 eat a re Ne aaa: om oraz) LINDUID NOILVOIGNI wee | W Ay an FED woe |P — VORIST| TL y bE [9z F CLESST] PAL wOez | ee T3GIC] CAL wy O07 LPT £4 A 4 * LAG G5 re doee [te | vO? |O7 404 ML [peel S000) LZI | ox TS _| B Tal bLY¥ —p4—— 0al ° $+—— 004 ‘val A | aT Ob Le OVLY Oe DIAS DAs CE oil as zor 242 | SL a 201 94 ‘jar 94L | GAL cor | 744 1 94L, ear 4 ie d7 £q1 Y od oar =+— Z0T Y —et+— _2gI isiy 9ZLy = zy SELLY ; 9214 ; 9244 2A DAs 27A4 A+ 22+ ” 221y PIL - ISLY OPLY S oe ia by Jd L 5 e 4] Ws or 6 9 by; wily & ?, I 204 104 am zc =¢ Jas A 4 4 ‘4 4 I ee kc ery il 0 my og! faz 2 | €4L A ee |e &4/ es OP ete zq4 | (QS f “ Le a RAE | AdZZ 7K on 4 a4 8SC -—4-—___9S¢ b—e+_- 9 SC py 8 Sg esa +++ P.O. op PSO —-—rp———— Sd vy vy vy z vas DA4 DAs me Ins 4 te ‘ 018 03‘Sij 9SO 17 c& t7 3 w as or | a 7 lo ¥Sa z 7) ssa — GF o/7 ! § OOoL 9ei0 bivze 914 Oo. €41+0Si4 4 4 > dd 2) Qig 8 OSI 10 ( ( \ 94 8N33°303 ‘AIDS ‘LW et ) 20 a3 ff 24 ~ OF oy 9.9 lO 41 19S 8 Od os : ool nay Hoe ered Ww Ww siias £125 vi P ud 2d2e sez| 19 LL gz] Pi 2495 My ted ) 2195 wee 7? oT ELISA ZL9S4 8207 badd 3 rE= EZ] 9 207 €g1 v7 220d dT vio | Evzo ia bly ia A+ ds A 9>d1-——~ ¢3d41— {Z C Y3LNNOD TIOYLNOD ZO {3 LIANDYID 3LVO 20 O1L95-€I9 as-9 2e, ——— bvzo0 2/1 et2 1) vw i 1) eS OLS i aN GOL YF ezzts LW 49) d 9 = $9) 7 ELIS f° O18 st bs : Z20 £29 je ELIS 9-45 — v<99 vo-5 Git 9195-497 C dWV OV3Y 8 SLIUM 14 20 10 {5 Qvj 8 ¥300V 10 C (ANAS) LINDBID AIddNS Y3IMOd 16 PD p4e) arsN0g samag ~ ° ‘ 8 ‘ a Ly t MS ‘ nen Ao Ast’ waaaty PY ane SE ee ee he ee | "9 (7 CINASH Ld3OX3) LINDUID AIddNS YSMOd Q < Psy 224N somoy yz S/sevys ee wre ee ee a a a nr rr nr nee 4 OfS0-89 18 200V 720V 240vV TRANSFORMER TERMINAL DIAGRAM “1s Vv 230V e 6 % € 000800078 00000000000, 700¥V 220V @ 8 % 3 Vol tage burnm Volliage burr 19 1—AYLNZ LYVHD ONIWIL @~-aS ov<-8) 457-9 — OS <5 Os~'y = T fra. 1 rtf TT 1 OO 025 "099 ae i ignsd ! AlO4 Lid fd 54 Fane. py) Nd —— 033 ——="— £99 IID $99 095 33 9994 92 £22 ZI9F f £29 a £2 ses inc! OL7s = ad OLS 23s 4 a eke OL SRR Sere | fa) j tr] ae: | Azy €2@4/4oes€ 2@¢ OF 2 Ole 2 € 2t/ oF 2@ tf Oj;F 2 Oolig 27 olf 2 4 0) £498 No [hy] 440 CY] ¢=20 = 95% + Eel 20 2—-AYLN3 LYVHD ONIWIL | | IS7°3 @-as as fn 143d (St-Jd ) d4+NN £4 £99 | ry Ptrry « 1 Ind | nfo TI rT a ee ae oe Se a i O= Id | —— ——$———————_}————-—HJfansa | ' SS mas | | ro fy OWN D4 ' ee —r 7 Nd e--—-————— 9|9) £99 09) 29 L 994 2294 pa J 1994 £0 7 na OLS) weataiad ee b nid dtN4 & 2 1+ oj;F 2 / O|;F 2@ ¢ O}F 24 A@j|;& 2 ¢ OF @ st oj;e2z t+ aoye&2z2¢ o;€ 2 ¢ oO ln 21 @NsS 8 QGV LYVHD ONIWIL Elez. u0!}p4odo auos —E] 9s ¢ fa] Fav GS *t+EZ (ov=-g) —— (g—0) s1a/D OY — — ov~+g+ oy Zvely<o 143d —+ ee | een I — Pe Ww 3Is?e glOl -120 7 “la Id His? f22d0 , 4 The {4 D4 Ni 03) wD) 439 z239 LD 2 yn] +22 hte zp? es 2274) TOz=Id°5 i 704 d+wW °L9) :=m + =A + FO=9d +199 nd nid) [ ATA [a | f¢ / 0 € Z ft ers, L9¢ C C ( Zz 1- LOW LYVHD ONIWIL tyiv<-o ‘say uied — _ P 192d 4$7:9| d4ST.9 vm" | (asvey = 0) qo” — — 1+OSWoy — a WS? Z~ oy] af 7 1-aSwoy L$? 4IW 29) SSL I> | Bal ioy . T = CTT TCE TTT L : : i pees le be Z=Id E= dd = = = = Z=2d } Mi ; b=2d £=2d —lgnsa | Alad | LIWd [x] f4 Zz? +X) — ——— eo 9d Ni RELI ss) ae GID —te-L 99 4-999 229 022 —4— [lo =e 99 ><— 1:90 099 23 b94 FD? 2974 Eee Lpo 902 34-199 1994 £7 £4 -999 nd —- nd OL GL IS ay nid 0195 9425, b fy | Aan (4 OG peasazsibas 49} ay =| L.-}. pataysphas sajsy J (x] { “foie . EZLOLEZLIOVE ZLO\ EC ZLAOJEZIO\EZT LOL EZTIO\EZTIOME VWIOlEZIO\EZlOLE Z/O\E T/IOlLEZIOVEZ4O\EZ /O\E 2soalFe z sai 19s Ji0 DY) NO [hy p= 70 =, Ei XIGS-F 2-L.W LYVHD ONIWIL sh g-2v eS 5 — $ . yg . S7:2y~ 32 — # v 43 Preys Prey Rear) ASTZ VOY otiy Pyar i Losioy =o) i kaswov« 0) = kaswov<o) Q \soswey — 1-O5Y Q noe I-asWoy 1-aSwoe im; I-aswoy 1405Way 1=OSWOY 1-OSWO 1-0SWeW oe 199d 3 ead hd iy |XX ° x 2e+ 70-972 41-522 | 47-922 L£IW'$97 DMs? % Na b — STs i j= 2d =L na pe v= od O=2d| 8 Z=2d er &y my piss - % Vv—- o ww .§ [Ald t * vo Thal Ax 94020 ° t 8 $ | ite vs |fd 2 eal v2 ogL v2 ool -¥? OOL'v) ‘OGL W7 ' 9 04 ~w o22d £29 oe RS Ry Ef “| ai be ODD 2b BD) ee —L 99 2-999 >— SD a KSDI L22 9D2 GI Pere 999 -$))> “a yn 3 3 iy Wood £22) bee S |e 490 522 £23 2 = q N04 029d|-92-499 | £4999 s2? [3 2) Te 949 $22 FeR py) 29 .) a “ nd : ald AIM CZJOVEZLA\EZTIOVEZTIO\EZIOSE PO [EZ (OE Z folez sole zi olezio EZ/OLE Z/OIE ZSLOIE Z/OJE ZL OIE ZIO\EZ Oo Ls C ( 1- AIO LYVHD SNIWIL {42d nce m= a $+3d | bod js7°9 @-a9 — — a-as Th ea = q Glan -132| Stal -132| dtiyn-£4-099 n3 4 dl TPTCPrP Perr reid | SERRTRRERRE AREER RRER EZR 5 | £=2d ZzId t] =2d o=bd 0=2d AsO. & " f i | x10 [23 54 N41 + +xXW Senn JID —ete- 199 022 £92 09) £2) >~— 079 ——4n 27 £22) my £23 yy £22] 2 fy) ] J nd 0194 aL OL | eal ——_« iv nid ANH = eS 1 rT [z] 1: J [-] as Se Le] hae Fevoléz/oleziolezclolé€zlo0l€zlolFz/olez/ olf z oltz ote role z Vole 2 (ole ZlolSss ove clo f2/oltz2/ ols} dio) AN wo ) 38 a Ii ‘© ey ~~ | N * 2+ Zs 2-AIO LYVHD ONIWIL | | 1-2d I~2d '-Id — —* — ee —_- | ee | 3S7 zt y~ oy IS7-2y¥~OPr| J$T ty roy g--g| gt+iy g-/y a+iy a a+iy g-'y ley lys-o oa] L7W $22 LW $2) L1W-§22 SAL +122 L Fe il 2d 5 Fe ES PET 221d Than T 7 Sl= Id O= 3d CtId v=d 1s gns4 | ! | Alad 5 i LIWwd 8 Lf4 297 A 8 4 O= 2d -492 »% N4 222 h— SDI mye LID" 9ID 52) £2) -re- 999 $99 £92 = 999 ><— 299 029 8 033 £99 $I7™ 99 yo4 Zz? © J Tl rv (ae | ] 422 $22 422 52) £94 : £29 —“yazod- 422 7 * 1204 Ld 922 _§22) “Za-9400 Fre bs) 2 £52 nd OLI$ > i | nid | } =] Aan EZlol€zsolEzlole zsol|€EezioleEzsolEe cole zvolezwol|Oesole zvole zlJoje é€7ole ezclolez/olEec/l/o0lgEez/lolLlos 26 ( ( ( €-AIQ LYVHD ONIWIL 1-Id l-2d — — — I-d | =— — — — | el — — bt $+7y boty 1+2y Itty 1+Z9/ 1+2p 1+7y 1+2y — — — — — — — = — — — — mt a+iy g-iy a-iy gtiy g-l g-ly a-ly q-ly g-'Y g-ly g-iv g-' gti LIW S93 17 - S22 ' LIW -SID = | E = — Id j= 2d Zz =9d ae g=24 | %=% r ans: | Ana | Ta mm ae ae J J J Ld e17S| yw? alms yd ots = wo UPS wD IBD LPS wD otas WP alts yr 54 N41 + LII—e—— 99 > eG 2-499 6 999 He $99 e199 999 G$II-s4+ £99 29 07774) e724 fez) a zs £2] Z9| 422 1794) £497 2 £4 “999 £490 $2) La p92 nd nid Aqy EZIOLEZTIOLE T/OLEZ Ole zsolezsolEzZsolEezsol€z /olezvofe2 sole 2 role zoe zl ol€ 2 1O/EzZojez/olezio | LIS 27 v-AIO LYVHD SNIWLL | == g-ty 4 ov > — _ §-Dd W-gitW ieey | ieee | ey fusew lusty leew teen ad | o— — — | came | — — =I atly g-i a-ly 9-1 g-ty g-ly | g-ly d-iv g-l¥ We7O vI9 L1b-$I9 L ‘ee =Id O= Id v gnsd Aldi bt 94-029 Liwd a ie 2! ae eS ee is O+W Nad < ob? 92) 19) 999 sy 99 vI4 927 2974 429 EH E 1997 O=Fd- D4 1399 TPE by) J7/ = nda nid Aan ETIOIEZ LOVE ZIOIE SIOVZ IOVE SLOlE Z/OlEST OTE ZTOLE STOLE ZIOLE ZONE Zi ole zlolEZ/OlESTOlE 2S TOE? Fol £95 28 Wvy9ovlid 39008 Tayunoy Frey” 423UNn0) pIOM TIUHOy Fig | H-H+-4Oond++Hs | G+ He Go OGL siak wWal-s/0L sof waf = tay IY ! O19 EL9S 2198 O@L €GL z60eL l Be =a 7 a en : aayun0) ! meer] SR) og a le HH l Ki K 4 H H | tie | OSL SL Es2SL e+Is0SL Wd? Md? | | i | TP co i) A ae ee See ee eee a 1204 ! } ff OF {} | Se ee eee | iy ain | H co LINDYID NOILVIIONI ) | 44 43040 | t eS caer i lee! fi ns H+ yo tay | H- HW HH 1 oo ! ae | ae | ee) ea ! | Bal [a a | asiP— Of j 1 OSL 25} H | ws} = fay | °ag H : E~1SL (SS es ee! am a WI S- ro oe a ae oO fay 2ay tav oav raj aug i Sw OF SWS'SbS [i LAA LAA LAD <j SALIAM Z ALIN avay