Kenwood TKR-820 Service Manual

Also see for TKR-820: Service manual Service manual

SERVICE MANUAL © 1990-3 PRINTED IN JAPANB51-8050-00 (O) 1403REVISEDPanel Case(Upper)DressingplateKnob(TAKEOVER,REPEAT,MONI)(A20-2666-11)}(A01-1059-01) (A21-1519-03)(K29-3148-04)x3Knob (POWER) Foot Knob (VOL, SQL) Dressing plate Rectangular receptacle (MIC)(K29-31 46-04) (J02-0049-14) x 4 (K29-3147-03) x 2 (A21-1520-03) (E08-0673-05)CONTENTSGENERAL.........ccccsceececeeesseesesscecescsencerceeeuserssseceeneestes2RXVCO:Z2 (X58-3150-XX)wesscseccecesseecnsenssrseesene63SYSTEMSET-UP.........:sscscessscstsrnssssccuseseserenseeseers4 TXVCO:Z5 (X58-B460-XX)....eecreeceseersseessnsscereue64INSTALLATION......0..cceccsssessesssensessensccescersssseneaeeeeeses5MICAMP :Z7 (X59-3210-10)....scccssececesnsereseeen-65CONVERSION.........-cccsssesceeeetsessccevensssseceusvsseneesssssees9IF:ZB (X59-3220-1O)...eeeesecesssnssteteeeeseensneesneneetan-66DISASSEMBLYFOR REPAIR.............::sccsseessereees11BPF /VCA:Z9 (X59-3230-10)...sccsesessrsrsesssereenn-67BLOCK DIAGRAM............--:::scssccrsercessersetseeneecsenens17AVRUNIT(X43-3040-10)oo...ccseeesseseesssteesseeeeeene-68CIRCUIT DESCRIPTION.............ceccssssesssersseeessereees19FINAL UNIT (X45-3250-XX)...cssseccceeeeessecenstseeene-70SEMICONDUCTORDATA..........::cecccssscssesenteseseees26SIGNALINGUNIT (X52-3140-10).....eceesstceesseren-72DESCRIPTIONOFCOMPONENTS............scsceeees31DISPLAYUNIT(X54-3070-11).eecscccccccssreeneessenn~74PARTSLIST........::cccescseeceescenseeresnnseneneceesscersscasenenses33TX-RX UNIT (X57-3270-XX)ooecessessssseessceesesseneenn-78DISASSEMBLY.........ccscsssscccresenensessonnseusessconeresenses53SIGNALINGCIRCUITDIAGRAM.................00008-83PACKING..........ccssssscssesseneescsesseccceeesssseosenancansrsseneses55SCHEMATIC DIAGRAM............ccssseesececssessenernennn-87ADJUSTMENT........:ccccccscsccorccessesusenscnscunsnrsesenezetsss56TERMINAL FUNCTIONG..............:ccceeeeecesersencoeeens ~95PCBOARD VIEWS/ CIRCUITDIAGRAMS KMC-9 (BASEMICROPHONE)...........--cccsecsoeeetene -97RX PLL: Z1, TX PLL : Z4 (X58-3120-10) ....sececees 62 SPECIFICATIONS. ...........csssscsseresessees BACK COVER