Sequential Circuits Prophet-5 Service Manual - Audiofanzine

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51» IR44S7/488 R-025R44S9 R-009R4490 R-152R4491 R-139R4492 R-021R4493-497 R-036R4498 R-0 12R4499 R-025R4500R-05SR4501 R-212R4502/503 R-130R4=-
8I45-6 BILL OF MATERIALS (TOTAL ITEMS)LINE ITEM DESCRIPTION QTY000 C-005002 C-008004 C-012006 C:-014007 C-018008 C-021010 C-025012 C-028014 C-031016 C-036018 C-033020 C:-039022 C-040024 C-041026 C-042028 C-043030 C-044032 C-045034 C-046036 C-04703S040 D-OOl042 D-004044 D-005046048 E-OOl050 E-002052 E-003054 E-017056 E-0 1058 E-037060 E-040062 E-044064 E-045066 E-048068 E-051070 E-053072 E-054074 E-055076 E-056078 E-057080 E-058082 E-059084 E-060086 E-061088 E-062090 E-063092 E-064094 E-065200P 50V DISC CAP.001 50V MYLAR 107. CAP.OIUF MYLAR 50V.02 50V MYLAR.22 35V TANTALUM2.2 TANTALUM 25V 207. CAP2200 25V ELECTROLYTIC CAP6300 25V CAP10 lOV TANTALUM CAPlOU 25V TANT150PF POLY 57.1000PF-, POLY10,000PF
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PROPHET-5 SYNTHESIZERTECHNICAL MANU
Page 5 and 6:
iJTable of ContentsISECTION 1MECHAN
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'1SECTION 1MECHANICAL1-0 GENERALThi
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Raise the top panel assembly to ser
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1-5 PCB 1/2 CONTROL PANELSOnce PCB
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Figure 1-5KEYBOARD REMOVAL1 -7/1 -8
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TOADDITIONALVCOsTOADDITIONALENV GEN
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2-2 THE PROPHETThe Prophet is a sub
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COMMON ANALOGVOICE(VOiCES e-5 ARE S
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'IAll processed CVs originate from
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ajMim—2-8 AUDIO OUTPUTAs shown in
Page 25 and 26:
.'2-10 MICROPROCESSOR, MEMORY, AND
Page 27 and 28:
For troubleshooting, it should be e
Page 29 and 30: 2-12 ADC, DAC, AND CV OUTPUTSThe DA
Page 31 and 32: iirH- - jMg 1— -^ 'iVMUX, U201-3^
Page 33 and 34: the same CV and trigger pattern to
Page 35 and 36: SECTION 3DOCUMENTS3-0 DOCUMENT LIST
Page 37 and 38: TOP PANEL ASSEMBLY1CHASSiSLAST \NOT
Page 39 and 40: TB/0i/20f 32 22 30 20 19 25 233 2 I
Page 41 and 42: TBZOf/^fOtP^2C20ZTBZOI/IOl17FUT ATK
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Page 47 and 48: 1+ I5V£/JJiJ-5|T> -TUNEWBOtWfOiAMP
Page 50 and 51: P40I+I6V(TUNE MUX)P40iP40f3ft wMIK
Page 52 and 53: + I5VOSCP40i^Q ^ |PMOPFR£QASFINAL
Page 54 and 55: M+I5VP40/ x|5v301 K|%34^fM0O£WASR4
Page 56 and 57: IU504ft50647C5042Z00|iFMCTBMtZCT2 1
Page 58 and 59: Inpreparation for service, set up t
Page 60 and 61: 4-2 OSCILLATOR B TESTSTEP MODULE CO
Page 62 and 63: 4-S FILTER TEST.STEP'MODULE CONTROL
Page 64 and 65: 4-8 POLY-MOD TEST—A.STEP MODULE C
Page 66 and 67: i4-11 PITCH WHEEL TRIMThis trim rem
Page 68 and 69: A)I4-16 VCO SCALE TRIMBE SURE RECOR
Page 70 and 71: 4-19 FILTER ENVELOPE AMOUNT VCA BAL
Page 72 and 73: 4-21 FINAL VGA BAL1. Switch PRESET
Page 74 and 75: 115-3 PCB 3BT301 E-040L-\:!Oi 0-U45
Page 76 and 77: I ]U374U375U376U377U37SU379U380U381
Page 78 and 79: 1R419SR4199R4200R4201R4202R4203R420
Page 82 and 83: kL096 E-066098 E-071100 E-078102 E-
Page 84 and 85: IJ310 M-156312 M-157314 M-158316 M-
Page 86 and 87: JJ51S R-161520 R--162522 R-163524 R
Page 88 and 89: FFFFDBKFETFFFILTFINFINEFOAFREQFSKFT
Page 90 and 91: 11 IJSECTION 8THEORY8-0 INTRODUCTIO
Page 92 and 93: 1 1for the 2 to 5-foot range. The c
Page 94 and 95: IiSECTION 9PRCX^RAMMING9-0 INTRODUC
Page 96 and 97: I3JIJThe Prophet will not accept st
Page 98 and 99: ByteByte 23Switch Bit (7)OSC A PULS
Page 100 and 101: t J IISECTION 10REVISION 3.1 and 3.
Page 102 and 103: I+ I5V+5dI^1-+5V 2'2pF+I6V+5V^^' U3
Page 104 and 105: T&=* PANEL ASSE^^mtYSAfKEYBOARD,'r-
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Page 108 and 109: 4/J«-5[E> -TUNER57a12wzofwiOi^^^^^
Page 110 and 111: —T8502J/fRSOBWMfrS/IC5045.iiU502i
Page 112 and 113: ^ 1 1 ;4 PINFigure II-OFigure11-TM1
Page 114 and 115: I 111-2 REVISION 3.0 MEMORY TESTRev
Page 116 and 117: Tr1 1-5 WHEEL BALANCE TRIM1. See pa
Page 118 and 119: SECTION 13PROPHET-5 REV 3.3 UPDATET
Page 120 and 121: iFigure 13-1PCB 3 TOP MODIFICATIONT
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Page 124 and 125: i/*5-tft/jj4-y,6-C90H202 >7-CS0H5Q3
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Page 128 and 129: tV t IEPROM1000.3.0V.8.0V.8.1V.8.21
Page 130 and 131:
IJmemory interface1000.3.01000.3.11
Page 132 and 133:
ittKRAM, non-volatile (NV)1000.3.01
Page 134:
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