JVC KB-700 Service Manual Download Page 1 | Manualshive

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Summary of Contents for KB-700

Page 1: ...No 6516 June 1983 ...

Page 2: ...ff Close Stereo Ensemble switch Tremolo Sustain switches Stereo pan pot mixer Pan pot 1 Base 2 Accomp Arpegio 3 Strings 4 Orchestra 5 Solo synthe Mic Mixer 1 Autorhythm 2 Base 3 Accomp 4 Arpegio 5 Accomp strings 6 Orches tra 7 Solo synthe __ Item Description Auto rhythm Rhythms 14 patterns Stereo rhythm 1 Waltz Samba Polka March Bossanova Rumba Tango Disco Rock I Rock n roll Legae Swing Rock II Sl...

Page 3: ...o loured blue or black The wire which is coloured Brown must be connected to the treminai which is marked with the letter L or co loured brown or red Features u Variegated auto accompanyment system by adopting the multi functional microcomputer system a Compucorder memorizing chord and bases of 62 bars of 3 musics n Key split switches over the accompanyment keyboard from a range to another b Easy ...

Page 4: ...ntrols all operations according to the programs of the built in ROM and an Power source Ceralock j for clock 5 Reset by input L Rhythm tempo IN Outputs for ROM and RAM controls Composite ports Data bus T 0 1 40 5V F X 1 2 39 T l X 2 3 38 P2 7 RES 4 37 P2 6 s s 5 36 P2 5 HTt 6 35 P2 4 E A 34 PI 7 To 8 33 PI 6 PSEN 9 32 P 1 5 w r 10 31 PI 4 ALE 1 1 30 PI 3 D 8 12 29 PI 2 OBI 13 28 PI 1 0 B 2 14 27 P...

Page 5: ...ing block diagram The 14 bit binary code turned out from ports A and B of ROM MSM83C55 scans every switch and enters into port 1 of CPU through the buffer and CPU outputs various kinds of commands according to the information input 5 ...

Page 6: ...s etc IC2 UKP Orchestra glide 1 MHz input for Solo Solo 2 OUT Control input from CPU Data bus P C 3 1 V 40 5 V P C 4 2 39 P C 2 T 1 N 3 38 PC 1 RES 4 37 P C 0 P C 5 5 36 P B 7 TOUT 6 35 P B 6 1 O M 7 34 P B 5 CE 8 33 P B 4 RD 9 32 P B 3 WR 1 0 3 1 P B 2 ALE 1 1 30 PB 1 D B 0 1 2 29 PB0 DB 1 1 3 28 P A7 D B 2 1 4 27 PA 6 D B 3 1 5 26 P A 5 D B 4 1 6 25 P A4 DB 5 1 7 24 PA 3 D B 6 1 8 23 PA 2 D B 7 ...

Page 7: ......

Page 8: ...most part of the CP board remove the board transformer and battery holder first TR Q29 P Transformer Fig 11 Note When re assembling the boards and parts removed once take great care not to make a mistake in applying screws Screws for plastics have larger pitches while smaller pitches for steel goods 3 Removal of volume control knobs and switch knobs 1 Knobs of volume controls can be removed by pul...

Page 9: ...igure puli it in the direction of D to remove When removing a black key first remove two white keys next to it and remove the black key in the same manner as for white keys Fig 12 6 Removal of the music stand smoked cover Remove screws inside see Fig 14 and push the cover holder with a screwdriver and the like in the direction of the arrow mark removal on one side only After that stand the cover a...

Page 10: ...strings signal Oscillo scope CP Board R228 Key split 1 Accomp string MAX Turning ON A2 key adjust R228 so that C is equal to D Tremolo speed Frequency counter RS Board R521 Junction of R446 R447 Brass VCF cutoff Oscillo scope or AC valve voltmeter RS Board R520 AUX OUT L ch Solo VCF cutoff frequency Oscillo scope or AC valve voltmeter RS Board R321 AUX OUT L ch SoloVCA cutoff level Oscillo scope R...

Page 11: ...IC42 4 3 O D76 Med v r Hawaiian guitar o IC42 8 9 O D72 Med O AJV 1 Organ o o O o IC56 4 3 Q39 None f JXh 1 7 Jazz organ o o o o IC56 4 3 0 None r r yj h V Piano o o IC42 10 11 O D75 Med v Elec Piano o o IC42 2 1 O D73 Med JU Strings ensemble o IC41 34 O D74 Med O o HA Trombone o IC56 1 2 Med o 1 J J l Solo synthe preset i Sounc sourct Converted waveform Envelope Noise Effect Output Waveform Attac...

Page 12: ...B 700 B N H 12 ...

Page 13: ... orchestral accohp Arptappio L 0 1 I FILL PRE 1C 14 1 M X J 1C 19 ze CI9 bdT J lpf I 1C 21 22 1C 21 A VCFM or J500msI W GATE case BASS 1 1 0 36 decay 1 1 1 r wv 034 J 1C 46 n 1 E ZLU 3PHASE 3 PHASE 1C 14 hz 5 Hz UKP CON 1 1 I 0 35 1 fPF buff W JbUF 5 E jBUFF Heitra Preset uto rhytnm I C53 I C 54 JTREMOI ITREMOl 1 osc n sw 041 12 PRESET ORC PRESET DEC I C45 Imix WlpfUbbd Wlpf to 45 46 KEY L MIX I M...

Page 14: ... 1032 02 VC 1032 01 NJM4558DD TC4066BP AN7533 LA4I25T AN69I4 MN3204 MN3I02 VC 1032 11 2SA929 F or 2SA564 R S MA38I 5A 6B 2SK I63 M N 2SB943 P Q 2SCI570NP F or 2SC828 R S ISI88FM DSAI7B KD2 GZA3 3 Y GZA8 2 Y GZAI2 Y GZA5 6 Y DBA40C KI5 GL 3PR7 GL 3NG7 IS 1555 14 ...

Page 15: ...C32 35 IC41 MN3102 LM8942 TC4013BP TC4050BP TC4001 BP TC4011BP TC4514BP IC46 47 IC54 IC55 Other Op amp Q2 39 50 51 Q8 28 Other transistors PNP NPN D92 Other diodes BA6110 TL092CP TC4049BP NJM455SDD 2SK163 M N 2SA929 F 2SA929C F or 2SA564 R S 2SC157CI F or 2SC828 R S GZA3 3CY 1S1555 15 ...

Page 16: ...oFofoFolc Solo synthe signal g u q io u o k x CN 14 To RS board Manual Key Switch 3 O h J rPOTS data 00 board 5 Power source r n i IIS s Q C 3 O 1 njcN 13 P 0 STB DA 1 1 J _J c_J o o z z r m 1 e o 10 RAM o RA 2 9X SIOOK 3 RA6 J 1C 2 I0OKS R17 IOK L7 i WA Rj J0K L6 Q8 KjjjjO L51 1 P OV 4 8V 0 047 K Vo CVI ro Ifl N f in v u to co cr co to O cm ro tj in io s qoqqoqqq Semi conductors used D101 108 I S...

Page 17: ...e TC4011BP NAND Gate TC4013 D Flip flop TC4069UBP Inverter TL092CP Operational Amp TC4514BP 4 16 Decoder NJM4558DD LM8942 MOS Inverter MN3204 512 stage BBD MN3102 BBD Clock Osc OUTZ ou71 CPZ TC4049BP Buffer Inverting TC4050BP Buffer UPD4584BC Schmidt Trigger LA4125T 2 ch Power Amp VC1032 Filter 17 ...

Page 18: ... CP PCB Pattern Diagram 1 1 2 1 KB 700 B N H KB 700 B N H 3 1 4 _1_5 l 6 7 8 9 1 10 A B C D E G 18 ...

Page 19: ...19 ...

Page 20: ...KB 700 B N H KB 700 B N H 20 ...

Page 21: ... ARPEGGIO a_ j I h i POLKA MARCH HH 7 7 7 7 M CY JN 7 7 7 I SD BD J J J J I ACCOMP PIANO GUITAR ARPEGGIO INTRO V Bossa Nova Polka March Tango Rhumba hh n i j j i SAMBA hh J5S Jf55 1 CY i J 7 J I SD 7 J 7 t J t J f I LT J J 7 J J I BD J 73 J 73 J 73 J 731 ACCOMP PIANO GUITAR ARPEGGIO itH fifth BOSSA NOVA HH j j J J J J J j I J J J J J J J J RS J 1 J l J I J J BD J 7 h J 7 M X ACCOMP PIANO i i H i j...

Page 22: ... j j j 1J J j i 1 BD J J j J l x 1 ACCOMP PIANO J V j h 1 GUITAR i V J V J l 1 ARPEGGIO a _r A_ SLOW ROCK Ballad H fTiffifnrn SD J J bd j j j r M SHUFFLE HH J 7 J J 7 J J 7 J J 7 J I JT3 J 7 J J 7 7 J 7 J I cy i i i i i j r i i SD J J I X BD J i J J f J l X I ACCOMP v PIANO ARPEGGIO I rilriJ flirt i J i i UMr v v _v v piano i I jn I li i ri i Y_v V_y v y Y v v rUITAR 7 J 7 7 7 X GUITAR ARPEGGIO II...

Page 23: ...PARTS LIST ...

Page 24: ...049BP 11 Inversion Buffer 6 TC4050BP Buffer 1 TC4066BP 99 Analog Switch 11 TC4069UBP 99 Inverter 2 TC4514BP 4 16 Decoder 1 UPD4584BC 99 Schmitt Trigger 1 MN3204 BBD 4 MN3102 Clock Osc 4 NJM4558DD Op amp 17 TL092CP 1 LM8942 MOS Inverter 2 AN5733 99 VCA Dual Attenuator 1 AN6914 Comparator 3 BA6110 Op amp 2 LA4125T 99 Power Amp 1 2SA798G Transistor 2 2SA929 F it 25 2SB943 P Q 3 2SC1570NO F 61 2SC3069...

Page 25: ...7 SLV Slide Knob Silver 8 BLU 99 Blue 6 RED 99 Red 1 SM3941 SLV Round Knob Pan Pot 5 SM3940 Touch Knob Compucorder 2 Jack A QMC0263 002 BS AC Socket 1 SMV2112 DC Jack 1 QMS6312 018 Headphone Jack Headphone 1 QMS6303 015 Expression Jack Expression 1 SMV2107 WHT Pin Jack AUX OUT 1 RED 99 1 QMS6312 019 Mic Jack Microphone 1 QMS6303 016 Foot Switch Jack Foot Switch 1 Speaker HSA1302 01 D Speaker 14 cm...

Page 26: ......

Page 27: ...acket 2 25 SM3928 Battery Holder 2 26 SM40374 Battery Spring 1 27 SM40302 310 Bushing 16 28 SBST3020Z T Screw 5 29 SM40373 Battery Terminal 1 30 SBSF3025 T Screw 18 31 SBST3008Z fi 27 32 a SMV2121 BS Power Transformer 1 33 SMK32 B CP P W B Ass y 1 34 SM3940 Touch Knob 2 35 SMK31 3 CC P W B Ass y 1 36 SM3931 001 External Plate 2 1 37 SM3930 001 1 1 38 SMK33 RS P W B Ass y 1 39 SM3950 002 P C B Brac...

Page 28: ......

Page 29: ...0 6 00G So G 5 7 00A La A 5 8 OCC Do C in the Highest Octave 1 9 SM3860 Black Key 25 10 SM3861 012 Key Guide 4 11 013 99 1 12 SM40281 Key Spring 61 MKM BOARD ASSEMBLY PARTS LIST Symbol No A Parts No Parts Name Description Q ty SMK29 MKM 6124 Board Assembly Bass 1 1S1555 Diode 24 SMV2063 Key Switch 24 SS31053 016 Card Fit Connector 1 SS31055 16152 i Card Cord 1 SMK30 MKM 6137 Board Assembly Treble ...

Page 30: ...Varicap 1 D1 5 1S1555 Diode 5 XI SMV2114 Ceralock 1 C16 SM40329 473 Super Capacitor 0 47 iF 1 LI SMV2110 Osc Coil 1 RA1 EXB P87104K Resistor Array 100 k 2 1 RA2 7 EXB P84104K 100 kf2 2 RA3 EXB P812103K 99 10 kfi 1 RA4 EXB P812104K 99 100 k 2 1 RA5 EXB P88104K 99 100 k 2 1 RA6 EXB P811104K 99 100 kS2 1 RA8 EXB P88103K 99 10 kft 1 R1 A QRZ0052 100 Fusible Resistor 1 CA1 EXF P8101 MW Capacitor Array ...

Page 31: ...Oscillator 3 NJM4558DD tt Op amp 19 1054 TL092CP tt n 1 1022 36 LM8942 tt FET Array 2 IC7 30 AN6914 it Comparator 2 1046 47 BA6110 VCA 2 IC15 18 50 VC1032 11 it Filter 3 Q8 28 2SA798G Transistor 2 Q 2SA929 F 11 Q 2SC1570 F rt 32 Q2 39 50 51 2SK163 M N FET 4 D92 GZA3 3 Y Zener Diode 1 1 SI 555 Diode 84 RA2 EXB P86103K Resistor Array 1 RA1 EXB P86104K 1 A QRZ0052 100 Fusible Resistor 4 R521 520 321 ...

Page 32: ...S188FM 99 1 D7 8 GZA3 3 Y Zener Diode 2 D54 GZA8 2 Y 1 GZA12 Y 99 1 LD1 4 5 9 10 GL 3PR7 LED Red 5 LD2 3 6 7 8 GL 3NG7 Green 5 LI SMV2110 Osc Coil 1 R229 QVP8A0B 025 V Resistor 200 kB 1 R228 053 5 kB 1 RA1 EXB P87105J Resistor Array 1 5 M 1 R108 A QRZ0064 R47 Fusible Resistor 0 47 2 2 R227 A QRZ0052 100 i 99 ion 1 R69 A QRZ0052 470 99 4 7 n 1 C82 QCF32HP 103 99 2 QCF31 HP 102 99 1 473 99 1 QFM31HJ...

Page 33: ...lide Volume 11 VR2 SMV2119 Rhythm 1 VR13 17 SMV2118 Volume Pan Pot 5 A QMC0262 003 AC Socket 1 SMV2112 DC Jack 1 QMS6312 018 HP Jack Headphone 1 QMS6303 015 EXP Jack Expression 1 SMV2107 WHT Pin Jack AUX OUT 1 RED 1 SMV2082 Heat Sink for IC11 1 SMV2155 if for Q27 28 2 SM3660 1C Socket for 1C1 1 SM3929 LED Mount 10 A QMF51A2 R40 BS Fuse T400 mA 1 A QMF51A2 R20 BS T200 mA 1 A E48965 002 Fuse Socket ...

Page 34: ... QFM31 HJ 102ZD V Resistor Volume M Capacitor Pitch Microphone 2 1 2 QET61AM 107Z QET61 EM 106Z QET61HM 105Z 474Z E Capacitor 1 1 2 2 CC BOARD ASSEMBLY PARTS LIST Symbol No Parts No Parts Name Description Q ty ID1 10 D101 108 SW1 8 SMK31 3 GL 5HD22 1S1555 SM40152 CC Board Assembly LED Diode Tact Switch 1 10 8 8 KF 1 FOOT SWITCH ASSEMBLY Accessory PARTS LIST No Parts No Parts Name Description Q ty ...

Page 35: ... y KF 10 1 19 QPGA110 06007 Poly Bag 1 1 PKSM100 13 Sheet 1 n QPGA012 03005 Poly Bag 1 1 A GMP3950 244 Power Cord for Model N 1 1 A QMP2550 200 for Model H 1 A QMP9017 013 BS for Model B 1 B SMA1074 Song Book 1 MM SMA1083 Instruction Book 1 SMA9015 Return Envelope 1 11 SMA9017 Owners Card 1 mm SM2766 J01 Dust Cover 1 B QPGA025 03505 Poly Bag i i 1 35 ...

Page 36: ...Optional Accessories 1 KX 20 Expression Pedal 2 KS 10 Keyboard Stand 3 KC 20 Carrying Case ...

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