Sequential Circuits Prophet-5 Service Manual - Audiofanzine

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Page 1 and 2: ^^. ^ ^s .y ^,-j?^ ^^w^-^>&i^^^V^?v
Page 3 and 4: PROPHET-5 SYNTHESIZERTECHNICAL MANU
Page 5 and 6: iJTable of ContentsISECTION 1MECHAN
Page 7 and 8: '1SECTION 1MECHANICAL1-0 GENERALThi
Page 9 and 10: Raise the top panel assembly to ser
Page 11 and 12: 1-5 PCB 1/2 CONTROL PANELSOnce PCB
Page 13 and 14: Figure 1-5KEYBOARD REMOVAL1 -7/1 -8
Page 15 and 16: TOADDITIONALVCOsTOADDITIONALENV GEN
Page 17 and 18: 2-2 THE PROPHETThe Prophet is a sub
Page 19 and 20: COMMON ANALOGVOICE(VOiCES e-5 ARE S
Page 21 and 22: 'IAll processed CVs originate from
Page 23 and 24: 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: TOP PANEL ASSEMBLY1CHASSiSLAST \NOT
Page 41 and 42: TBZOf/^fOtP^2C20ZTBZOI/IOl17FUT ATK
Page 43 and 44: OA* Y*tMOlooMtt'O o)i:i'^.^^.1 I5-
Page 45 and 46: —' i+6V+5d^1—+I5V+ SV+ V ff^ U3
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 80 and 81: 51» IR44S7/488 R-025R44S9 R-009R44
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:
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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-
Page 106 and 107:
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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
Page 122 and 123:
T 1ttSillniiinMIttltltlltlillll^- ^
Page 124 and 125:
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Page 126 and 127:
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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:
1voltage-current convertervoice ass
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