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SERVICE MANUAL

GUITAR PRE-AMPLIFIER

011400

HAMAMATSU, JAPAN

2.1K-656

Printed in Japan '98.03

CONTENTS

SPECIFICATIONS

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PANEL LAYOUT

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CIRCUIT BOARD LAYOUT

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BLOCK DIAGRAM

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DISASSEMBLY PROCEDURE

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LSI PIN DESCRIPTION

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IC BLOCK DIAGRAM

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CIRCUIT BOARDS

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TEST PROGRAM

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ERROR MESSAGES

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MIDI IMPLEMENTATION CHART

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PARTS LIST
OVERALL CIRCUIT DIAGRAM

19980301-198000

Summary of Contents for DG100-212

Page 1: ...an 98 03 CONTENTS SPECIFICATIONS 3 PANEL LAYOUT 4 CIRCUIT BOARD LAYOUT 5 BLOCK DIAGRAM 6 DISASSEMBLY PROCEDURE 7 LSI PIN DESCRIPTION 9 IC BLOCK DIAGRAM 12 CIRCUIT BOARDS 14 TEST PROGRAM 18 ERROR MESSAGES 21 MIDI IMPLEMENTATION CHART 22 PARTS LIST OVERALL CIRCUIT DIAGRAM 19980301 198000 ...

Page 2: ...lemaan tyyppiin Hävitä käytetty paristo valmistajan ohjeiden mukaisesti The following information complies with Dutch Official Gazette 1995 45 ESSENTIALS OF ORDER ON THE COLLECTION OF BATTERIES Please refer to the diassembly procedure for the removal of Back up Battery Leest u voor het verwijderen van de backup batterij deze beschrijving IMPORTANT NOTICE This manual has been provided for the use o...

Page 3: ...N2 REVERB MODE STORE RECALL Display AMP SELECT display LED X 8 MODE display LED X 3 REVERB type display X 3 7 segment LED X 2 digits Indicator Trim Level Display LED Green Trim Clip Display LED Red Connection Jacks INPUT HIGH LOW SPEAKER EFFECT SEND RETURN Standard Phone Mono Jack LINE OUT Cannon Jack MIDI IN MIDI OUT 5 pin DIN A D Converter 20 bit D A Converter 20 bit Sampling Frequency 48 kHz Me...

Page 4: ...1 2 Reverb Type Select Button REVERB Reverb Type Display Lamp SPRING HALL PLATE Mode Select Button MODE Mode Display Lamp AMP TAPE ECHO UTIL Display Buttons Store Button STORE Recall Button RECALL Power Switch POWER Speaker Jack SPEAKER MIDI OUT Jack MIDI IN Jack Effect Blend Control EFFECT BLEND Effect Return Jack EFFECT RETURN Effect Send Jack EFFECT SEND Line Out Jack LINE OUT Line Out Level Co...

Page 5: ... CN401 CN403 CN402 CN404 CN504 CN502 CN501 CN602 CN9 CN4 CN5 CN6 CN7 CN8 CN603 CN304 CN309 CN308 CN305 CN201 CN202 CN306 CN318 CN303 CN301 CN302 K301 K302 K304 K303 CN307 CN313 CN314 CN317 CN312 CN315 CN310 CN604 CN601 VR DM ANR SPG CN316 SPH PN MAIN 5 5 MAIN 4 5 MAIN 3 5 MAIN 2 5 AC cord Power switch MAIN 1 5 MAIN 1 5 ...

Page 6: ...eakers can then be removed Fig 1 60 Hexagonal Nut 5 0 x 35 MFC2BL EX000990 30A Oval Head Screw 5 0 x 35 MFC2BL VP104600 70 Oval Head Tapping Screw 4 0 x 30 MFC2BL EN240090 Fig 1 Fig 2 Speakers Pre main unit Pre main unit Back board Upper 60A 30A 70B 70A 60A x 4 70B 70A Connector assembly speaker BLOCK DIAGRAM DISASSEMBLY PROCEDURE INPUT 1 JK501 INPUT 2 JK701 TRIM VR IC501 RED GREEN INPUT LEVEL IND...

Page 7: ...removed Fig 3 Main 2 5 Circuit Board Remove the screw marked 150A The main 2 5 circuit board can then removed Fig 3 Main 3 5 Circuit Board Remove the screw marked 150B The main 3 5 circuit board can then removed Fig 3 Main 4 5 Circuit Board Remove the screw marked 150C The main 4 5 circuit board can then removed Fig 3 Main 5 5 Circuit Board Remove the screw marked 150D The main 5 5 circuit board c...

Page 8: ...tterij springt dan naar voren Battery Battery holder 8 PN Circuit Board 8 1 Remove the pre main unit See Procedure 1 8 2 Remove the front panel assembly See Procedure 3 8 3 Remove the ten 10 screws marked 80B The PN circuit board assembly can then be removed Fig 4 8 4 Remove the seven 7 top cap assemblies from the PN circuit board assembly Fig 4 9 ANF Circuit Board 9 1 Remove the pre main unit See...

Page 9: ... 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 I O O O O O O O O O I I I O I I I I O O O O O I I I I I I I I I I I I O O O O O I I I O O O A12 A13 A14 A15 A16 A17 A18 A19 VSS P60 WAIT P61 BREQ P62 BACK ø STBY RES NMI VSS EXTAL XTAL VCC AS RD HWR LWR MD0 MD1 MD2 AVCC VREF P70 AN0 P71 AN1 P72 AN2 P73 AN3 ...

Page 10: ...PU data bus DTACK signal output Serial data input Ground Power supply Serial data output Parallel data bus Power supply FUNCTION YSS228D F XQ962D00 DSP3 Digital Signal Processor PIN NO 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 13...

Page 11: ... Reference voltage FUNCTION AK5390 VP XQ199A00 ADC Analog Digita Converter PIN NO 1 2 3 4 5 6 7 8 I O I I I I DATA CLOCK Vdd DGND Vdd LE NC NC NAME Serial data input Bit clock Digital power supply 5V Digital ground Digital power supply 5V Latch enable Reserved Reserved FUNCTION PIN NO 9 10 11 12 13 14 15 16 I O I O O I O I O Vcc BPO DC I OUT AGND AGND SERVO DC REF DC Vcc NAME Analog power supply 5...

Page 12: ...C74HC4040F XR684A00 12 Stage Binary Ripple Counter TC74HC164AF XQ967A00 8 Bit Shift Register SN74HC374ANSR XQ042A00 Octal 3 State D Type Flip Flop Vcc 8Q 8D 7D 7Q 6Q 6D 5D 5Q CLOCK Q D CK OE Q D CK OE CK Q D CK OE Q D CK OE 1G 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 1 20 2 19 3 18 4 17 5 16 6 15 7 14 8 13 9 12 10 11 VDD Vcc 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 GND Vss Q CL Q D CK 1 2 3 4 5 6 7 1A 1Y 2A 2Y 3...

Page 13: ...n Inverting Input B Inverting Input A GND IN 1 IN 2 Vz P R E D R I V E R 5 6 4 3 2 8 10 9 7 Vcc2 OUT2 P2 Vcc1 OUT1 P1 1 I N P U T L O G I C N C V BAT1 V OUT V OUT V BAT2 ALARM1 GND CONTROL N C V IN V IN V SENSE C T RESET RESET ALARM1 1 2 3 4 5 6 7 8 10 9 13 12 11 16 15 14 2 3 4 5 6 7 8 9 10 11 12 16 14 13 C T V BAT2 V BAT1 ALARM2 RESET RESET ALARM1 V OUT V OUT V IN V IN V SENSE CONTROL GND 590k 24...

Page 14: ...MIDI IN OUT to DM CN9 Component side ENA VZ77180 1 9 DG100 212 14 Note See parts list for details of circuit board component parts CIRCUIT BOARDS DM Circuit Board ...

Page 15: ...DG100 212 15 to DM CN9 Pattern side ENA VZ77180 1 9 DM Circuit Board Note See parts list for details of circuit board component parts ...

Page 16: ...LOW MID BASS TIME PRESENCE FEED BACK REVERB LEVEL Component side Component side Pattern side VR CNA VZ89700 1 10 PN ENA VZ77230 1 4 PN Circuit Board VR Circuit Board Panel Layout Note See parts list for details of circuit board component parts ...

Page 17: ... side Component side Component side LOW INPUT TRIM OUTPUT HIGH CNA VZ89700 1 10 EFFECT SEND RETURN BLEND 5 5 4 5 3 5 2 5 1 5 MAIN Circuit Board ANR Circuit Board ANF2 Circuit Board ANF Circuit Board Note See parts list for details of circuit board component parts ...

Page 18: ...shed and the DG100 212 selects the next test no so the LED shows a 1 Error Number not appearing 1 Switch Check Press the RECALL key when the LED display shows 1 The Switch Check is started and the LED display shows the first check number 11 Test Contents Press the keys according to the LED display guide in the order as below The Exit function of the STORE key is available on the error status 11 LE...

Page 19: ...ode by the rewrited wrong data in the Flash Memory Don t turn the POWER switch off while executing this test the DG100 212 won t set up at normal mode by no data in the Flash Memory Test Contents The Flash Memory Erase Write check is executed automatically When the check is started the LED display shows from 70 to 73 successively When all the LEDs light simultaneously the Flash Memory Erase Write ...

Page 20: ...m Press the RECALL key when the LED display shows 9 The mode of the DG100 212 changes to the normal mode and all of the function data are set to the condition of the latest program number in normal mode The Motor Drive Volumes rotate automatically to the settings of that data Items 1 Input Sensitivity High 2 Input Sensitivity Low 3 RETURN Level 4 SEND Level 5 LINE OUT Level 6 Frequency Response HI...

Page 21: ...f data being sent or break the data into smaller blocks Communication Error CAUSE An abnormality is detected during MIDI communications SOLUTION Check all connections etc and try again Bulk Receive Check Sum Error CAUSE The check sum does not match the received MIDI bulk data SOLUTION Check all connections and data and try again Bulk Receive Data Abnormality CAUSE An abnormality is detected in the...

Page 22: ...F x x After Key s x x Touch Ch s x x Pitch Bender x x 0 6 x x 7 x o Main Volume 8 90 x x 91 x o Reverb SW Control 92 x x 94 x o Tape Echo SW Change 95 127 x x Prog x o 0 127 Program Change Change True Number 1 128 System Exclusive o o Bulk Dump System Song Pos x x Song Sel x x common Tune x x System Clock x x Real Time Commands x x Aux Local ON OFF x x All Notes OFF x x Mes Active Sense o x sages ...

Page 23: ...R CPU RAM SRAM SRAM ASSP DATA SELECTOR Photo Coupler BUS BUFFER BUS BUFFER D FF D FF to VR CN602 to VR CN604 to MAIN1 5 CN308 to PN CN201 to VR CN603 to PN CN202 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 A B C D E F G H I J K L A B C D E F G H I J K L DG100 212 OVERALL CIRCUIT DIAGRAM 1 2 DM ANR DM Mylar Capacitor Ceramic Capacitor Semicondactive Cera Cap ...

Page 24: ... Birtish model U S Canadian models Japanese models General export model Birtish model U S Canadian models Japanese models TL T T T T3 15AL POWER Transformer POWER Switch BL WH WH BL GR BE BR BE BR GR YE GR YE Flame Proof Carbon Resistor KEC 54163 1 5 to ANR CN402 REGULATOR to ANR CN404 to DM CN8 MAIN 1 5 2 5 3 5 5 5 4 5 MAIN MAIN MAIN MAIN SPEAKERS 4 8 OHMS SPEAKER 100W SPEAKERS DG100 212 OVERALL ...

Page 25: ...pare parts J Japanese model U U S A model C Canadian model X General model M South African model H North European model A Australian model E European model D German model B British model I Indonesian model O Chinese model GUITAR AMPLIFIER PARTS LIST WARNINNG Components having special characteristics are marked and must be replaced with parts having specifications equal to those originally installe...

Page 26: ...DG100 212 2 OVERALL ASSEMBLY Overall cabinet assembly See page 6 Pre main unit See page 4 ...

Page 27: ...er A DG100 212 3 New Parts RANK Japan only REF NO 10 12 14 18 20 30 40 50 60 70 80 90 100 110 112 114 120 132 142 152 162 PART NO VZ893900 VP104600 EW300020 XU436A00 EX000990 EN240090 VB890200 VR144600 VR145100 VZ992800 VP156800 ET800070 5 0X35 MFC2BL 5S MFC2BL VINTAGE30 5 0 MFZN2BL 4 0X30 MFC2BL 4S MFC2BL L 500mm L 200mm SP FRAME A4 0X8 MFZN2BL 4 0 MFZN2BL REMARKS DG100 212 J VZ74050 U VZ74060 E ...

Page 28: ...DG100 212 4 PRE MAIN UNIT Power transformer AC cord assembly Earth mark Chassis assembly See page 8 Front panel assembly See page 7 ANR circuit board assembly Power switch assembly ...

Page 29: ... Assembly Circuit Board Sub Angle L Sub Angle R Pan Head Screw Bind Head Screw Volume Knob Side Angle Side Angle Bind Head Screw Power Switch Assembly Switch AC Cord AC Cord Assembly AC Cord Assembly AC Cord Assembly Cord Strain Relief Cord Strain Relief Meter Cover Cord Holder Bind Head Tapping Screw B Bind Head Screw Label FCC Label Toothed Lock Washer A Caution Label Cord A4 0X8 MFZN2BL ANR SP ...

Page 30: ...SCRIPTION OVERALL CABINET ASSEMBLY Cabinet Assembly Vinyl Corner Round Head Wood Screw Handle Assembly Front Board Assembly Name Plate Caster Socket Bind Head Screw Spring Washer Back Board Shield Sheet 122KURO 9A 3 5X16 FNM33G NO 15 ZMC2 BL 5 0X20 ZMC2BL 2 5 0 FCM3BL REMARKS DG100 212 VZ89410 VZ89440 QTY 6 16 4 4 16 16 2 RANK 05 07 06 04 01 OVERALL CABINET ASSEMBLY Handle assembly Front board ass...

Page 31: ...y Circuit Board Top Cap Assembly Top Cap Assembly Top Cap Assembly Top Cap Assembly Top Cap Assembly Top Cap Assembly Top Cap Assembly PH Connector Assembly PH Connector Assembly Bind Head Tapping Screw B Knob VOLUME CH Knob VOLUME S Hexagonal Nut Flat Washer Circuit Board VR 3 0X6 MFZN2BL ANF 7 0 MFZN2Y 9 0 MFZN2Y PN 11P L 300 C C 12P L 300 C C 3 0X6 MFZN2BL 9 0 12X2 MFNI33 9X14 0 5 FNM3 ANF2 REM...

Page 32: ...DG100 212 8 CHASSIS ASSEMBLY ...

Page 33: ...t Board Circuit Board Circuit Board Bind Head Tapping Screw B Power Transformer Power Transformer Power Transformer Bind Head Screw Bush Plate Bush Plate Bind Head Screw Heat Sink Heat Sink Bind Head Screw Spacer Heat Sink Sheet Pan Head Screw Phone Jack Spacer Speaker Out Hexagonal Nut Flat Washer Earth Mark DM 3 0X6 MFZN2BL 3 0X8 MFZN2BL MAIN MAIN MAIN 3 0X6 MFZN2BL A4 0X8 MFZN2BL A3 0X6 MFZN2BL...

Page 34: ...onolithic Ceramic Cap Monolithic Ceramic Cap Monolithic Ceramic Cap Monolithic Ceramic Cap Monolithic Ceramic Cap Monolithic Ceramic Cap Monolithic Ceramic Cap Monolithic Ceramic Cap Monolithic Ceramic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Monolithic Ceramic Cap Monolithic Ceramic Cap Monolithic Ceramic Cap Semiconductive Cera Cap Semiconductive C...

Page 35: ... Semiconductive Cera Cap Semiconductive Cera Cap Ceramic Capacitor SL Ceramic Capacitor SL Mylar Capacitor Mylar Capacitor Electrolytic Cap Electrolytic Cap Mylar Capacitor Mylar Capacitor Mylar Capacitor Mylar Capacitor Electrolytic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap BP Electrolytic Cap BP Electrolytic Cap Electrolytic Cap Semiconductive Cera Cap Semiconductiv...

Page 36: ...n Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor Carbon Resistor Carbon Resistor chip Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor chip Carbon Resistor chip MSM514260C 60TS K UPD424260G5 70 7J...

Page 37: ...ve Cera Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Ceramic Capacitor F Ceramic Capacitor F Electrolytic Cap Ceramic Capacitor F Electrolytic Cap Electrolytic Cap Electrolytic Cap Ceramic Capacitor F Ceramic Capacitor F Electrolytic Cap BP Electrolytic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Electrolytic Cap Ceramic Capacitor SL Electrolytic Cap Electroly...

Page 38: ...conductive Cera Cap Semiconductive Cera Cap Ceramic Capacitor F Semiconductive Cera Cap Ceramic Capacitor F Semiconductive Cera Cap Ceramic Capacitor F Semiconductive Cera Cap Ceramic Capacitor F Monolithic Mylar Capacitor Ceramic Capacitor SL Electrolytic Cap Monolithic Mylar Capacitor Ceramic Capacitor SL Electrolytic Cap Electrolytic Cap Electrolytic Cap Base Post Connector Base Post Connector ...

Page 39: ... Fuse Holder Fuse Fuse Fuse Holder Fuse Fuse Fuse Holder FET FET IC IC IC IC IC IC IC IC IC XLM Connector Jack Jack Phone Jack Phone Jack Terminal Terminal Terminal Terminal Terminal Plate Coil Coil LED LED Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor XH 4P TE 3P L 250 B C 2P L 100 B C XH 5P TE PH 6P TE XH 3P TE 8P ...

Page 40: ... Proof C Resistor Metal Oxide Film Resistor Metal Oxide Film Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Resistor Carbon Res...

Page 41: ...istor Carbon Resistor Carbon Resistor Metal Plate Resistor Metal Plate Resistor Relay Connector Assembly Transistor Transistor Transistor Transistor Transistor Transistor Transistor Pair Transistor Pair Transistor Transistor Transistor Transistor Transistor Transistor Transistor Trimmer Potentiometer Trimmer Potentiometer Trimmer Potentiometer Rotary Variable Resistor Rotary Variable Resistor Rota...

Page 42: ...p Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Carbon Resistor chip Push Switch Push Switch Speaker Connector Assembly Connector Assembly Connector Assembly Power Switch Assembly Switch AC Cord...

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