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Technics SX-PR603 Service Manual
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Technics SX-PR603 Service Manual

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ORDER NO. EMID0006009C0
A5
PCM KEYBOARD
SX-PR603 / SX-PR603M
(P) U.S.A., Mexico
(PC) Canada
(EX) Norway, Sweden, Denmark, Finland, Spain, Portugal, South
Africa
(EF) France
(EZ) Germany
(EG) Switzerland, Italy, Austria, Holland, Belgium
(EB) the United Kingdom
(GN) Australia, New Zealand
(XS) Malaysia, Singapore
(XT) Taiwan
(X) Thailand, Columbia, Panama, Chile, Brazil, Philippines,
Venezuela, Ecuador
(XA) Argentina
(XD) Saudi Arabia, Hong Kong, Kuwait
SPECIFICATIONS
1

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Summary of Contents for Technics SX-PR603

  • Page 1 ORDER NO. EMID0006009C0 PCM KEYBOARD SX-PR603 / SX-PR603M (P) U.S.A., Mexico (PC) Canada (EX) Norway, Sweden, Denmark, Finland, Spain, Portugal, South Africa (EF) France (EZ) Germany (EG) Switzerland, Italy, Austria, Holland, Belgium (EB) the United Kingdom (GN) Australia, New Zealand...

  • Page 2: Specifications

    SPECIFICATIONS 88 KEYS KEYBOARD SOUND GENERATOR 64 NOTES MAX. POLYPHONY SOUNDS NUMBER OF SOUNDS: 988 SOUNDS + 32 DRUM KITS + 2 DIGITAL DRAWBARS PIANO GROUP: GRAND, UPRIGHT, ELECTRIC, MODERN SOUND GROUP: GUITAR & HARPSI, STRINGS & VOCAL,BRASS, SAX & WOODWIND, ORGAN &...
  • Page 3 Supported ONE TOUCH PLAY Supported TECHNI-CHORD 3 BANKS × 8, SET, NEXT PANEL MEMORY BANK, BANK VIEW SEQUENCER 16 TRACKS RESOLUTION: 1/96 PER BEAT STRAGE CAPACITY: APPROX.40000 NOTES (10 SONGS MAX.) INPUT MODES: EASY RECORD, REALTIME RECORD, STEP RECORD FUNCTIONS: RECORD & EDIT, COPY &...
  • Page 4 POWER REQUIREMENT 120 W AC120/220/230-240V 50/60 Hz AC120V 60 Hz (NORTH AMERICA AND MWXICO) AC230-240 50/60 Hz (EUROPE, AUSTRALIA AND NEW ZEALAND) 140.6 cm × 107.2 cm × 62.3 cm DIMENSIONS (W×H×D) (55-11/32” x 42-7/32” x 24-17/ 32”) 60 kg (132.3 lbs.) NET WEIGHT AC CORD, MUSIC STAND, ACCESSORIES...

  • Page 5: Safety Precaution

    the unfinished or rough edge of a part. 7. When replacing the power cord (except for the plug-in type), tug it from various directions to confirm that it does not slip out of place. 8. Spacing If soldering was done on the AC primary circuit, confirm that the interval between the soldered terminals or between the terminal and surrounding metallic parts is at least the minimum required (between the primary circuit and the chassis: atleast 6.5 mm;...
  • Page 6 allexposed parts. Figure-1 3. OWNERS MANUAL 4. HOW TO ASSEMBLE THE PIANO To prevent the piano unit from falling off the stand, secure it firmly with the screws. 1. Assemble the right and left planks - Assemble the right and left planks to the pedal box with the 4 brass-colored screws.

  • Page 7: Keyboard Ranges

    3. Place the piano body - Place the piano body on the stand and secure it with 4 black screws. Figure-4 4. Connect the pedal cord and power cord - Connect the pedal cord and power cord to the terminals located on the rear of the piano unit as shown below.

  • Page 8: Parts Location

    6. PARTS LOCATION Figure-7 Figure-8 7. DISASSEMBLY INSTRUCTIONS 7.1. Removing the top cover 1. Remove the top cover mounting screws (A x 4 pcs.) as shown in...
  • Page 9 Figure-9 2. Slide the top cover forward and lift up (as shown by the arrows). 7.2. Removing the keyboard cover 1. Remove the top cover (see step “Removing the top cover ”). 2. Match the gears of the keyboard cover with the notches in the guide rail, and lift up the keyboard cover as shown in Figure-9 Figure-9...
  • Page 10 7.4. Removing the keyboard assembly 1. Remove the control panel (see step “Removing the control panel 2. Remove the keyboard assembly mounting screws located on the bottom of the cabinet (A x 10 pcs.) as shown in Figure-11 Figure-11 7.5. Key(s) Disassembly 1.
  • Page 11 / / / / Assembly 1. Insert the front part of the key into the chassis. 2. Insert the plate spring into the hammer notch as shown in Figure- 3. While slowly lowering the key into the chassis, insert the plate spring into the notch at the rear of the key.
  • Page 12 7.7. Removing the 6,5cm speaker, the LCD and INVL P.C.B. - Remove the control panel (see step “Removing the control panel ”). 6,5cm speaker - Remove the 6,5cmm speaker mounting screws (A x 4 pcs.). LCD P.C.B. - Remove the LCD P.C.B. mounting screws (B x 6 pcs.). INVL P.C.B.
  • Page 13 Figure-16 7.9. Removing the printed circuit boards - Remove the keyboard cover (see step “Removing the keyboard cover ”). - Pull out the connectors on the printed circuit boards. MAIN P.C.B. 1. Remove the MAIN P.C.B. mounting screws (A x 2 pcs., B x 3 pcs.). 2.
  • Page 14 7.11. Removing the 16cm speakers 1. Remove the keyboard cover (see step “Removing the keyboard cover ”). 2. Remove the speaker box mounting screws (K x 8 pcs.). 3. Remove the 16cm speaker mounting screws (L x 8 pcs.). Figure-17 8.
  • Page 15 2. After the service diagnostic screen is displayed on the LCD, release the three keys. 3. Use the PAGE button below the display to select the respective test. Figure-19 8.1. ROM device test Figure-20 - Press the EXECUTE button to begin the test. - The test result (OK or NG) is displayed within a few seconds.
  • Page 16 - Press the EXECUTE button to begin the test. - The test result (OK or NG) is displayed within few seconds. If the test result is NG, not only the respective IC, but a break or short circuit in the ADDRESS/DATA BUS as well as in any of the strobe signal lines may be the cause ofthe failure.
  • Page 17 - Insert a formatted floppy disk into the Disk Drive. Press the START button to begin the test. - The test is carried out repeatedly. Data is saved and loaded, and then the two data sets are compared. The number of times that the test results in OK or NG are counted and displayed on the LCD.
  • Page 18 LEDs light. If all switches are OK, “ALL SW OK” is shown on the LCD. (If a switch is defective, nothing is shown.) - To light all the LEDs, press and hold the DEMO button. If an LED fails to light, the LED may be defective or there may be a break in the surrounding circuit.
  • Page 19 - The operation status of each input action part can be confirmed. If the part is operating properly, “OK” is shown. - When a keyboard key is pressed, the corresponding pitch and velocity are displayed (only as long as the key is depressed). - The respective statuses for other input action parts are displayed.
  • Page 20 8.9. WAVE ROM test Figure-28 - Press the EXECUTE button to start the test. - The test result (OK or NG) is displayed within thirty seconds. If the test result is NG, not only the respective IC, but a break or short circuit in the ADDRESS/DATA BUS as well as in any of the strobe signal lines may be the causeof the failure.
  • Page 21 generator ROM corresponding to the key position is defective. 2. For confirming the output pathway from the sound generator. (Fixed scale, no touch) The Lch and Rch sound outputs are confirmed separately. 3. Generate a full amplitude sine wave in the pitch of each key +2 octaves.
  • Page 22 9.2. Notes on replacing FLASH ROMs The replacement parts include a FLASH ROM with a available memory and the PROGRAM DISKs which contains the program to be written into the PROGRAM ROM. After replacing the PROGRAM ROM, always write the program into it from the PROGRAM DISKs includedin the replacement parts.

  • Page 23: Precautions Before Servicing

    4. In next FLASH MEMORY UPDATE screen, confirm the procedure and push [*UPDATE*] button again. 5. In next <PROGRAM VERSION INFO> screen, confirm the version at “NOW(CURRENT) =“ column is “Ver F.F.”. If the version to update from disks is latest, proceed to update by [* UPDATE*] button.
  • Page 24 10.2. Important safety notice - Components identified by a mark have special characteristics important for safety. - When replacing any of these components, use only manufacture’s specified parts. 10.3. Symbolic marks The symbolic marks for resistors and capacitors which used in this circuits are classified as following Table-1 Table-2...

  • Page 25: Specification

    SYMBOL SPECIFICATION TYPE Non-Polarized Electrolytic ECEA_KN_type Capacitors Non-Polarized Electrolytic (for ECEA_Y_type Network system) Tantalum Solid Electrolytic ECS_type Capacitors Metallized Plastic Film Capacitors ECQV_type (TF Series) Temperature Compensating ECC_type Ceramic Capacitors High-Dielecytric Constant Ceramic ECK_type, ECR_type Capacitors Axial Lead Ceramic Capacitors ECB_type Metallized Polyester Film ECQ_EW_type...
  • Page 26 11.2. Measuring condition of AS P.C.B. Check Point 3 - 8 Set to the Self-diagnostic Mode followings. - While pressing two E keys simultaneously, turn on the power switch. - SOUND : SOUND EXPLORER - MAIN VOLUME: Max. - Keyboard: A1...
  • Page 27 12. SCHEMATIC DIAGRAM 13. PRINTED CIRCUIT BOARD 14. BLOCK DIAGRAM 15. WIRING CONNECTION DIAGRAM 16. REPLACEMENT PARTS LIST Notes: *Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low-noise (resistors), etc.
  • Page 28 Ref. No. Part No. Part Name & Description Remarks QKQGP003AAZ MUSIC STAND QKQGP003ABZ MUSIC STAND SX-PR603M SBLG7-2 STAY XTT4+10AFZ SCREW XTB3+10AFZ SCREW QKQGA145AAZ TOP COVER ASS'Y QKQGA145ABZ TOP COVER ASS'Y SX-PR603M QMRG7021AB SLEEVE QMRG7021AA SLEEVE SX-PR603M QMFG1237AA FELT QMFG1057AA FELT SGBG160B BADGE QKQGF034AAZ...
  • Page 29 Ref. No. Part No. Part Name & Description Remarks XTT5+20AFZ SCREW QHDG016AB SCREW WITH WASHER QHDG032AB SCREW WITH WASHER XTN4+16F SCREW QMRG0129AA CORD CLAMPER QEXGRA01080B EARTH WIRE QMFG4222AA CUSHION SBNG7050A KNOB QGUG3002BB DIAL WHEEL QKWG033AB LCD PANEL QGPG0133CC CONTROL PANEL EXCEPT P QGPG0133BD CONTROL PANEL...
  • Page 30 Ref. No. Part No. Part Name & Description Remarks QLZG017A CORE QLZG021A CORE SGKG980A LABEL QEXGRA01007K WIRE QTPG1M054A POWER TRANSFORMER P PC QTPG1M053A POWER TRANSFORMER EXCEPT P PC EDMMR63B0F QYKG269AAZ CABINET ASS'Y GYKG269ABZ CABINET ASS'Y SX-PR603M QJRG019AA EARTH PLATE QMFG4103AA CUSHION EXCEPT QMRG1027AA...
  • Page 31 Ref. No. Part No. Part Name & Description Remarks QMWG2006AA BLACK KEY QMCG011BA SPRING QMWG9027AA HAMMER(BLACK KEY) QMWG9027AB HAMMER(BLACK KEY) QMWG9027AC HAMMER(BLACK KEY) QMWG9027AD HAMMER(BLACK KEY) QMWG9025AA HAMMER(WHITE KEY) QMWG9025AB HAMMER(WHITE KEY) QMWG9025AC HAMMER(WHITE KEY) QMWG9025AD HAMMER(WHITE KEY) QMGG060AA RUBBER CAP(HAMMER) QMWG8045AA KEY GUIDE QMWG8041AA...
  • Page 32 Ref. No. Part No. Part Name & Description Remarks ECQU2A104MN 0.1UF 250V ECUV1C224KBX 0.22UF MAIN QCBG1H473ZFA 0.047UF JACK2 ECCR1H101J5 100PF ECCR1H221J5 220PF JACK ECCW3F180JGE 18PF INVL ECEA0JKS101 100UF 6.3V ECOS1HP682D 6800UF 50V ECRF1H104ZF 0.1UF MKB1 ECUV1H104ZFX 0.1UF MAIN QCBG1H104ZFA 0.1UF JACK2 ECEA0JKA331Q 330UF 6.3V...
  • Page 33 ECCR1H100D5 10PF...
  • Page 34 Ref. No. Part No. Part Name & Description Remarks ECUV1H104ZFX 0.1UF MAIN ECUV1H030CCN MAIN QCBG1H104ZFA 0.1UF ECQB1H103JF3 0.1UF 50V ECUV1H104ZFX 0.1UF MAIN ECQG1H682KZ 0.0068UF ECUV1H030CCN MAIN ECQG1H152KZ 0.0015UF ECUV1H104ZFX 0.1UF MAIN ECQV1H104JM 0.1UF ECUV1H104ZFX 0.1UF MAIN ECQG1H152KZ 0.0015UF ECUV1H104ZFX 0.1UF MAIN ECQV1H104JM 0.1UF...
  • Page 35 Ref. No. Part No. Part Name & Description Remarks ECCR1H471J 470P ECQG1H222KZ 0.0022UF C51,52 ECA1HHG221B 220PF 50V ECQV1H225JL3 2.2UF ECQV1H225JL3 2.2UF C61,62 ECEA50Y1R5K 1.5UF 50V C63,64 QCBG1H104ZFA 0.1UF C65,66 ECEA1HKN010 1UF 50V ECQG1H472KZ 0.0047UF C101 ECBT1H151KB 150PF ASUB C101 ECUV1H104ZFX 0.1UF MAIN C102...
  • Page 36 Ref. No. Part No. Part Name & Description Remarks C236,37 ECUV1H102JX 0.01UF MAIN C238 ECUV1H151JG 150PF MAIN C240 ECUV1H104ZFX 0.1UF MAIN C241 ECUV1H151JG 150PF MAIN C243 ECEA1VKA100 10UF 35V MAIN C244 ECRR1H104ZF 0.1UF MAIN C245 ECA0JM102 6.3V1000U MAIN C246,47 ECRR1H104ZF 0.1UF MAIN C248...
  • Page 37 Ref. No. Part No. Part Name & Description Remarks CN203 QJUG00214A CONNECTOR MAIN CN204 QJUG00205AA CONNECTOR MAIN CN301 SJPG1JS160 CONNECTOR MAIN ERA1502V5 DIODE MA111TX DIODE MAIN MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA165TA5VT DIODE JACK ERA1502V5 DIODE MA111TX DIODE MAIN MA165 DIODE...
  • Page 38 MA165 DIODE MKB1...
  • Page 39 Ref. No. Part No. Part Name & Description Remarks MA165TA5 DIODE MA165TA5VT DIODE MA4160MTA DIODE MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA4160MTA DIODE MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA4180TA ZENNER MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA4180TA ZENNER MA165...
  • Page 40 Ref. No. Part No. Part Name & Description Remarks MA4220MTA ZENNER MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA165 DIODE MKB1 MA165TA5VT DIODE MA165 DIODE MKB1 MA165TA5VT DIODE MA165 DIODE MKB1 MA165TA5VT DIODE MA165 DIODE MKB1...
  • Page 41 Ref. No. Part No. Part Name & Description Remarks MA165TA5 DIODE MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA165 DIODE MKB1 MA165TA5 DIODE MA165TA5VT DIODE MA165 DIODE MKB1 MA165TA5...
  • Page 42 Ref. No. Part No. Part Name & Description Remarks MA165TA5 DIODE LN382GPXVTX3 LED(GREEN) MA165 DIODE MKB1 MA165TA5 DIODE LN282RPXVTX3 LED(RED) MA165 DIODE MKB1 MA165TA5 DIODE LN282RPXVTX3 LED(RED) MA165 DIODE MKB1 MA165TA5 DIODE MA165 DIODE MKB1 MA165TA5 DIODE LN282RPXVTX3 LED(RED) LN282RPXVTX3 LED(RED) MA165 DIODE...
  • Page 43 Ref. No. Part No. Part Name & Description Remarks LN282RPXVTX3 LED(RED) LN382GPXVTX3 LED(GREEN) MA165 DIODE MKB1 LN282RPXVTX3 LED(RED) LN282RPXVTX3 LED(RED) MA165 DIODE MKB1 LN282RPXVTX3 LED(RED) LN282RPXVTX3 LED(RED) MA165 DIODE MKB1 LN382GPXVTX3 LED(GREEN) LN382GPXVTX3 LED(GREEN) MA165 DIODE MKB1 LN382GPXVTX3 LED(GREEN) LN382GPXVTX3 LED(GREEN) MA165 DIODE...
  • Page 44 Ref. No. Part No. Part Name & Description Remarks D102 MA165TA5VT DIODE D103 LN282RPXVTX3 LED(RED) D103 LN382GPXVTX3 LED(GREEN) D103 MA152W DIODE MAIN D103 MA165 DIODE MKB2 D103 W6E05 ASUB D104 LN282RPXVTX3 LED(RED) D104 MA152W DIODE MAIN D104 MA165 DIODE MKB2 D104 W6E05 ASUB...
  • Page 45 Ref. No. Part No. Part Name & Description Remarks D213,14 ERA1502V5 DIODE MAIN D215-17 MA111TX DIODE MAIN D218 MA8051LTX ZENER MAIN D219 MA111TX DIODE MAIN D220,21 MA152WK DIODE MAIN D301,02 MA121TX DIODE MAIN D303 MA159ATX DIODE MAIN XBA1C40NB100 T4A 125V XBA2C31TB0L T3.15A 250V ACP(X XA XD XT XS ONLY)
  • Page 46 Ref. No. Part No. Part Name & Description Remarks IC109 M5M34051FPE2 BUS TRANSCEIVER MAIN IC110 T74VHCT541AF CMOS MAIN IC111 M66273FP LCDC MAIN IC112 T74LCX16244A CMOS MAIN IC201 M51V18165D70 DRAM16M-EDO MAIN IC202 TC7SU04FT85L LOGIC MAIN IC203 TMS57070FFT MAIN IC204 PCM1734EA-E2 MAIN IC206 M5218AFPE3 OPAmp...
  • Page 47 QLQGT1D600MA COIL...
  • Page 48 Ref. No. Part No. Part Name & Description Remarks L8,L9 QLQGT3T131TA 130UH × 3 JACK L10-13 QLQGT1B100MA 10UH JACK QLQGT1B800MA 80UH JACK QLBG005A COIL JACK L101 QLBG005A COIL MAIN L201 QLQGT1T121LA COIL MAIN L202 QLBG005A COIL MAIN L203 QLQGT1T121LA COIL MAIN L204 QLBG005A...
  • Page 49 Ref. No. Part No. Part Name & Description Remarks FX30KMJ FS30KMJ FX30KMJ FS30KMJ Q20-24 2SC1815TPE2 TRANSISTOR 2SA1015TPE2 TRANSISTOR Q26-28 2SC1815TPE2 TRANSISTOR 2SA1015TPE2 TRANSISTOR Q101 2SA1015TPE2 TRANSISTOR ASUB Q101 UN511NTX TRANSISTOR MAIN Q102 2SA1015TPE2 TRANSISTOR ASUB Q102 UN511NTX TRANSISTOR MAIN Q103 2SC1815TPE2 TRANSISTOR ASUB...
  • Page 51 Ref. No. Part No. Part Name & Description Remarks ERDS2T0 ERDS2T0T ERDS2TJ103 ERDS2TJ562T 5.6K INVL ERDS2TJ680T JACK ERG1SJ470 1W47 JACK2 ERJ6GEYJ102V MAIN ERDS2T0 ERDS2T0T ERDS2TJ103 ERDS2TJ562T 5.6K INVL ERDS2TJ680T JACK ERG1SJ470 1W47 JACK2 ERJ6GEYJ472V 4.7K MAIN ERDS2TJ101 ERDS2TJ101T ERDS2TJ151 JACK ERDS2TJ332T 3.3K ERG1SJ470...
  • Page 52 ERDS2TJ473T Ref. No. Part No. Part Name & Description Remarks ERJ6GEYJ470V MAIN ERDS2TJ103 ERDS2TJ471T JACK ERDS2TJ472 4.7K ERJ6GEYJ470V MAIN ERDS2TJ332T 3.3K ERDS2TJ473T ERJ6GEYJ472V 4.7K MAIN ERDS2TJ334 330K ERDS2TJ471T JACK ERDS2TJ473T ERJ6GEYJ472V 4.7K MAIN ERDS2TJ104T 100K ERDS2TJ104T 100K ERDS2TJ471T JACK ERJ6GEYJ470V MAIN ERDS2TJ102T JACK...
  • Page 53 Ref. No. Part No. Part Name & Description Remarks ERJ6GEYJ472V 4.7K MAIN ERD2FCVJ4R7T 4.7 1/4W FUSE TYPE ERDS2TJ103 ERDS2TJ103T ERJ6GEYJ472V 4.7K MAIN ERD2FCVG220 22 1/4W FUSE TYPE ERDS2TJ103 ERDS2TJ103T ERJ6GEYJ472V 4.7K MAIN ERDS2TJ103 ERDS2TJ103T ERJ6GEYJ472V 4.7K MAIN ERQ2CJP2R0S 2 2W FUSE TYPE ERDS2TJ101 ERDS2TJ101T ERJ6GEY0R00V...
  • Page 54 ERJ6GEYJ332V 3.3K MAIN Ref. No. Part No. Part Name & Description Remarks ERDS2TJ101T ERDS2TJ152 1.5K ERJ6GEYJ331V MAIN ERDS2TJ101T ERDS2TJ104T 100K ERDS2TJ471 ERDS2TJ224T 220K ERDS2TJ472 4.7K ERDS2TJ332T 3.3K ERDS2TJ823T ERDS2TJ152 1.5K ERDS2TJ104T 100K ERDS2TJ182 1.8K ERJ6GEYJ101V MAIN ERDS2TJ104T 100K ERJ6GEYJ101V MAIN ERDS2TJ182 1.8K ERDS2TJ104T...
  • Page 55 Ref. No. Part No. Part Name & Description Remarks ERDS2TJ473T ERDS2TJ332T 3.3K ERDS2TJ103 R97,98 ERQ2CJP6R8S 6.8 2W FUSE TYPE R101 ERD2FCVG221T 220 1/4W FUSE TYPE ASUB R101 ERJ6GEYJ102V MAIN R102 ERDS2TJ152 1.5K ASUB R102 ERJ6GEYJ101V MAIN R103 ERDS2TJ152 1.5K ASUB R103 ERJ6GEYJ470V MAIN...
  • Page 56 Ref. No. Part No. Part Name & Description Remarks R130,31 ERJ6GEY0R00V CHIP JUMPER MAIN R132 ERJ6GEYJ472V 4.7K MAIN R133 ERJ6GEYJ473V MAIN R134 ERDS2TJ472 4.7K MAIN R201 ERJ6GEYJ105V MAIN R202 ERJ6GEYJ101V MAIN R203 ERJ6GEYJ102V MAIN R204 ERJ6GEYJ470V MAIN R205,06 ERJ6GEYJ681V MAIN R207,08 ERJ6GEYJ151V MAIN...
  • Page 57 Ref. No. Part No. Part Name & Description Remarks R304-07 ERJ6GEYJ101V MAIN R308-10 ERJ6GEYJ470V MAIN R311-16 ERJ6GEYJ471V MAIN QSPG1010AA SW POWER S1-S3 QSTGT001AA LEVER SWITCH SP1-2 QASG16P01A 16cm 4 SP3-4 QASG65PH03A 6.5cm 8 QSRGT005AA VOLTAGE SELECTOR ACP(X XA XD XT XSONLY) QSSGT011AA SLIE SWITCH JACK...

  • Page 58: Cabinet Parts Location

    Ref. No. Part No. Part Name & Description Remarks EFOEC4004T3 4MHz CERAMIC OSCILATOR EFOEC4004T3 4MHz CERAMIC OSCILATOR QSXG1A1600A 16MHZXTAL MAIN X101 QSXG2F2400A 24MHZ CERAMIC OSCILLATOR MAIN X201 QSXG1A2500A 25MHz QUARTZ OSCILLATOR MAIN X301 QSXG1A1693A X'TAL MAIN EXBA10E472J 4.7K × 4 MAIN Z2-Z4 EXBV8V470J...
  • Page 61 18. PACKAGING...
  • Page 62 / Printed in Japan / S000600000 HM/AM...
  • Page 63 QEXGZA34075B PKB P.C.B. JACK P.C.B. PEDAL IN CORE MAIN P.C.B. QJLG013AA CN101 CN203 CN103 CN105 CN204 JACK2 P.C.B. CN301 QEXGSS16110A CN202 CN102 CN108 CN104 QEXGZA05078B QEXGSS12060A CPL P.C.B. INVL P.C.B. MKB1 P.C.B.
  • Page 64 16cm, 6 16cm, 6 AS P.C.B. ACP P.C.B. QEXGVH06100C POWER TRANSFORMER QEXGVH03140B POWER SWITCH QEXGVH04095D QEXGSS06105A CPR P.C.B. 6.5cm, 8 6.5cm, 8 MKB2 P.C.B.
  • Page 65 JACK (1/2) FLOPPY DISK DRIVE MIDI COMPUTER INVL POWER TRANSFORMER MAIN CN101 CN104 CN108 CN103 IC109 DRIVER IP102 SBO2 SBI2 RECEIVER IC110 BUFFER 32 BIT MICRO CONTROLLER CP DATA,CP CLK ADDRESS BUS A0-A21 IC101 IC111 SBI1 A1-A3 A1-A14 FLOPPY DISK SBO1 CONTROLLER CONTROLLER...
  • Page 66 MKB1 MKB2 SWITCHES & LEDS Q1-5 IC2,3 DECODER BUFFER DRIVER MAIN VOLUME SWITCHES SEG0-SEG8 CM0-CM4 SW0-SW7 & DIODES DECODER DECODER 8BIT MICROCOMPUTER DATA,SCK SWITCHES & DIODES CN301 CN202 CN102 IP101 IC102,104 3-5V I/F IC206 IC204 CONVERTER...
  • Page 67 CN203 +VCC SWITCHES & LEDS Q1-5 IC2,3 +15A IC209 BUFFER DRIVER Q210,C258 D220 -15A SEG0-SEG11 CM0-CM4 SW0-SW7 8BIT MICROCOMPUTER MEMORY DATA,SCK +3.3BB BACK UP Q201,203 Q206,208 D219 +3.3D REGULATOR REGULATOR Q205 +3.3D REGULATOR IC208 CN204 CN105...
  • Page 68 Q1,2 D3,5 +15V POWER REGULATOR TRANSFORMER POWER SWITCH Q3,4 D7,9 -15V AC CORD REGULATOR IP3,7 +15A +VCC SP2(Rch) IP4,8 16cm; 6 -15A -VCC IC2,3,4 IC8,9 SP1(Lch) 16cm; 6 ASUB IC5,6,7 IC8,9 SP4(Rch) 6.5cm; 8 EQUALIZING POWER AMPLIFIER SP3(Lch) 6.5cm; 8 JACK2 POWER INDICATOR...
  • Page 69 MAIN P.C.B. (COMPONENT SIDE) CN104 CN102 CN301 D210 C243 D211 C264 ZC303 ZC302 Z303 Z301 IP101 C123 Q101 IC102 IC14 D301 R226 Q205 Q102 Q104 ZC301 Z302 D303 CN108 C120 IP102 Z317 Z316 Z315 Z314 Z313 Z312 Z311 Q103 IC104 D302 R125 R228...
  • Page 70 ELECTRICAL PARTS LOCATION Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. MAIN P.C.B. (COMPONENT SIDE) Q206 R208 C123 Q207 Z101 R210 C125 Q208 Z107 L101 R212 C209 Z109 L201 R213 C215 D105 Z110 L202 R226 C220 D201 Z111 L203...
  • Page 71 MAIN P.C.B. (FOIL SIDE) C319 C132 R134 C101 C233 Q211 R229 C240 Z304 R115 D208 Z106 R124 Z306 IC103 R116 R109 R R R R R R R R R R 1 1 1 2 2 2 2 2 2 2 2 7 7 7 7 7 7 R R R R R R R R R R 1 1 1 2 2 2 2 2 2 2 2 7 7 7 7 7 7 R222 C232...
  • Page 72 ELECTRICAL PARTS LOCATION Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. MAIN P.C.B. (FOIL SIDE) R114 R244 C217 IC12 R115 R245 C218 IC17 R116 R246 C219 IC19 Z102 R118 R247 C232 IC103 Z103 R119 R248 C233 IC106 Z104 R120...
  • Page 73 AS P.C.B. J159 J160 SUML R50 R51 SUMR J153 J1 R54 R6 Q3 R44 R45 R46 R47 R48 R49 J160 R102 R5 Q1 R37 R38 R39 R40 R101 R31 R32 R33 R34 R11 Q10 J154 PMUT J155 J156 J157 J123 J125 J91 J90 J89 J124...
  • Page 74 ELECTRICAL PARTS LOCATION Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. AS P.C.B. R101 R102...
  • Page 75 CPL P.C.B. AUTO SETTING SW46 RHYTHM GROUP JAZZ AUTO PLAY CHORD BIG BAND& LATH & COMBO SWING APC/SEOUENCER WORLD 8&16BEAT BALLAD METRONOME SW26 VOLUME OFF/ON MODE SPLIT J60 J62 POINT SW32 SW33 SW34 SW35 SW36 SW37 SW31 SW30 J59 J61 COUNTRY&...
  • Page 76 ELECTRICAL PARTS LOCATION Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. CPL P.C.B. SW45 SW46 SW49 SW50 SW51 SW52 SW53 SW54 SW10 SW55 SW11 SW56 SW12 SW57 SW13 SW58 SW14 SW59 SW15 SW60 SW16 SW61 SW17 SW62 SW18 SW19...
  • Page 77 CPR P.C.B. J203 J133 SW47 SW48 SW50 SW49 NEXT BANK BANK VIEW PANEL MEMORY SW51 D107 D108 D109 D110 D111 D112 D113 SW61 SW56 SW57 SW58 SW59 SW55 SW60 SW52 J201 SW53 PART SELECT SW54 SW35 SW36 SW32 SW33 SW34 TRANSPOSE LEFT RIGHT 1...
  • Page 78 ELECTRICAL PARTS LOCATION Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. CPR P.C.B. D115 SW37 D116 SW38 D117 SW39 D118 SW40 SW41 SW42 SW43 SW44 SW45 SW46 SW47 SW48 SW49 SW50 SW51 SW10 SW52 SW11 SW53 SW12 SW54 SW13...
  • Page 79 MKB1 P.C.B. D72 D70 SW40 SW38 SW32 SW30 SW29 SW28 SW27 SW26 SW25 SW24 SW23 SW43 SW42 SW41 SW39 SW37 SW36 SW35 SW34 SW33 SW31 SW44 D25 J6 SW19 SW18 SW15 SW22 SW21 SW20 SW17 SW16 SW14 SW13 SW12 SW11 SW10 (SXPG231111A) ELECTRICAL PARTS LOCATION...
  • Page 80 MKB2 P.C.B. D142 D140 D138 D136 D134 D176 D174 D172 D170 D168 D166 D164 D162 J17 D160 D158 D156 D154 D152 D150 D148 D146 D144 D167 D165 D163 D159 D157 D155 D151 D149 D147 D145 D139 D137 D135 D133 D175 D173 D171 D169...
  • Page 81 PKB P.C.B. JR1 JR3 SUSTAIN SOSUTENUTO SOFT (SXPG218121) ELECTRICAL PARTS LOCATION Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. PKB P.C.B.
  • Page 82 ASUB P.C.B. J312 J300 J322 J321 Q123 Q117 Q116 Q112 Q114 Q109 Q121 Q107 Q106 Q102 Q104 Q119 C101 D110 C104 D108 D104 D102 R121 R119 R118 R115 R116 J309 R109 C102 R107 R106 R103 R104 C105 Q120 Q124 Q118 Q115 Q111 Q113...
  • Page 83 JACK P.C.B. D3D1D2 C3 R1 (SXPG229911) ELECTRICAL PARTS LOCATION Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. JACK P.C.B. JACK2 P.C.B. J14 3 (SXPG229711B) ELECTRICAL PARTS LOCATION Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. Ref.No. Lo.No. JACK2 P.C.B.
  • Page 84 ACP P.C.B. X XS XT XD XA P PC PY OTHERS ELECTRICAL PARTS LOCATION Ref.No. Lo.No. Ref.No. Lo.No. ACP P.C.B.
  • Page 85 FADE IN/OUT Begin your song with a slowly PIANO STYLIST increasing volume, or end it by You can choose to have having the sound slowly fade all the settings of this away. instrument automatically set. PIANIST SONG RHYTHM GROUP AUTO PLAY CHORD When you play a song from the Various rhythm patterns are Add an automatic...
  • Page 86 DISPLAY Displays performance information, function settings and other messages. • Use the LCD CONTRAST buttons to adjust the display so that it is easy to read. SOUND GROUP EFFECT Various sounds are Add various effects to the available for each sounds.
  • Page 87 This instrument has many settable functions and storable memories. However, you can return the settings and memory to the factory-preset status. Press the PROGRAM MENUS button to turn Use the buttons to select the desired it on. type of initialization. •...
  • Page 88 (on the rear panel) LINE OUT AUX IN COMPUTER PEDAL IN THRU R + L R + L MIDI MIDI AUX IN (input level 0.5 Vrms, 6 kΩ) COMPUTER Other instruments such as a sound generator can be con- By connecting this terminal to the serial port of a computer, nected to this terminal, and the sound will be output from performance data can be exchanged.
  • Page 89 The following changes in performance may occur in the Technics Keyboard but do not indicate trouble. Phenomenon Remedy • Turn off the POWER button once, then turn it on again. If this The buttons, keys, etc. malfunction. procedure is not successful, turn off the POWER button once.
  • Page 90 Phenomenon Remedy • The remaining memory capacity of the COMPOSER is 0. Storage is not possible. • The time signature and number of measures cannot be changed Setting the time signature and number of measures is not possible. for a pattern which is currently recorded in the COMPOSER. If you wish to change the time signature and/or measure data, first follow the procedure to clear the memory.
  • Page 91 Contents Contents The data on the disk that you are using is for a The time signature of the pattern from which you different product. are copying is different from the COMPOSER memory that you are using. An error has occurred while the disk was loading. Either: Change the time signature Please try again! of the COMPOSER memory...
  • Page 92 MIDI Implementation Chart Digital Ensemble [ SX-PR603 ] Function Transmitted Recognized Remarks Default 1-16 1-16 Assigned to the part. Basic Channel Changed 1-16 1-16 Default OMNI OFF, POLY MODE Mode 3 Messages *M=1 only Mode Mode 3, 4 (M=1) Mode 3, 4 (M=1)
  • Page 93 SCHEMATIC DIAGRAM-1 MAIN 1/4 CIRCUIT A[0-25] D[0-31] IORST CP.GATE SELF.LED FDC.TC PMUT MACSEL CP.CLK PC.TX PC.RX MIDI.TX MIDI.RX CP.DATA +3.3D 4.7K +3.3D 100K 0.22 2SB709ARTX 2SD601AQTX MA111TX 4.7Kx8 4.7K +3.3D MA111TX 4.7Kx8 +3.3D +3.3D TC74VHC138F (3 TO 8 DECORDER) PORT.EXP LCD.NIOCS TGCS 4.7Kx8...
  • Page 94 SCHEMATIC DIAGRAM-2 QLBG005A +3.3D 47x4 4.7Kx8 4.7Kx8 +3.3D +3.3D 4.7K 4.7K +3.3D RESET 4.7K DSDSAT 4.7K DSCLK 4.7K MMODE 4.7K BMODE VDD MN103002A (32BIT MICROCONTROLLER) DMR0 IRQ0 DMK0 DMR1 4.7K DMK1 DMR2 4.7K DMK2 A26/CS4/RAS4 DMR3 +3.3D A27/CS5 DMK3 QLBG005A A28/CS6 SYSCLK OSCI...
  • Page 95 SCHEMATIC DIAGRAM-3 +3.3D +3.3BB K16V1204CTL6 (16M BIT DYNAMIC RAM) TC7SH08FU (INVERTER AND GATE) 4.7Kx8 LCAS UCAS 1 2 3 4 5 33 DE +3.3D +3.3BB 220P 4.7Kx8 +3.3BB TC74VHC08F (QUAD 2 INPUT AND GATE) +3.3BB IC15 K16V1204CTL6 (16M BIT DYNAMIC RAM) LCAS UCAS 33 DE...
  • Page 96 SCHEMATIC DIAGRAM-4 +3.3D BYTE IC11 M29LV160B8TN RESET (16M BIT FLASH ROM) RY/BY...
  • Page 97 SCHEMATIC DIAGRAM-5 IC12 +3.3D QSIGX3C64016 (64M BIT RHYTHM DATA ROM) IC16 T74VHCT374AF (D TYPE FLIPFLOP) BYTE CLOCK DSP.INT3 DSP.CS DSP.RST DSP.INT +3.3D +3.3D C39 IC17 T74VHCT374AF (D TYPE FLIPFLOP) CLOCK DAC.ML DAC.MC DAC.MD IC18 TC7W32FU DAC.CS (DUAL 2 INPUT OR GATE) EEP.DO IC14 BR93LC56RFE2...
  • Page 98 SCHEMATIC DIAGRAM-6 NOTE: The number which noted at the connectors on the schematic diagram as "SCHEMATIC DIAGRAM-1" or "SCHEMATIC DIAGRAM-2" indicates the schematic diagram serial number located on the left corner in the schematic diagram. MAIN 2/4 CIRCUIT IC102 TC7WT241FU DUAL 3 STATE +3.3D BUFFER...
  • Page 99 SCHEMATIC DIAGRAM-7 CN103 RXD- D102 D101 RXD+ MA152WATX MA152WATX TXD+ JACK CIRCUIT TXD- DRIVER Z105 (CN3) ON SCHEMATIC IC108 47x4 MSEL DIAGRAM 32 T7SET04FT85L (INVERTER) MIDI DRIVER RECEIVER 1 2 3 4 5 ZC104 ZC105 RECEIVER 100P D103 L101 C121 0.1 MA152WATX QLBG005A IC109...
  • Page 100 SCHEMATIC DIAGRAM-8 C130 +3.3D +3.3D Z112 IC112 7 18 31 42 4.7K T74LCX16244A VCC(3.3V) (16BIT BUS BUFFER) +3.3D Z111 4.7Kx4 R132 4.7K Z108 100x4 R128 4.7K +3.3D R129 4.7K 10 15 21 28 34 39 45 R130 R131 +3.3D C127 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 C126 IC111...
  • Page 101 SCHEMATIC DIAGRAM-9 CN106 +3.3D +3.3D SELF.LED PORT.EXP CN105 SOSTE SUSTAIN SUSTN SOFT JACK CIRCUIT (CN2) ON SCHEMATIC Z110 DIAGRAM 32 +5MI 47x4 MRXD MTXD ZC106 100P DSP.DRBY EEP.D0 MIDI.TX MIDI.RX DSP.EMPTY MIC.SNS MACSEL IORST C124 CN107 +3.3D +3.3D JIGU JIGU.9M IRQ0 JIGL.CS LCD.NICOS...
  • Page 102 SCHEMATIC DIAGRAM-10 MAIN 3/4 CIRCUIT CKOUT LRCK SDO0 DAC.CS DAC.MD DAC.MC DAC.ML DSP.CS DSP.RST C207 0.001 IC202 TC7SU04FT85L (INVERTER) C208 C206 1 2 3 4 5 R201 R264 EA5/ED17 R202 X201 EA4/ED16 ARLR2 QSXG1A2500A EA6/ED18 ARLR1 EA7/ED19 DIV512 C202 C203 EA8/ED20 EA9/ED21 R204...
  • Page 103 SCHEMATIC DIAGRAM-11 D201 MA2051LF +3.3D +3.3D C209 6V1000 D219 MA111TX L201 D221 120uH MA152WKTX D202 SFPB74V D220 R205 680 MA152WKTX R206 680 Q201 +3.3BB 2SB952ADS Z205 R257 R256 22x4 D203 C216 R209 MA111TX 6800P Q210 C258 2SB709ARTX D204 Q203 5.5V1F MA111TX 2SC1815TPE2 Q202...
  • Page 104 SCHEMATIC DIAGRAM-12 C257 R252 C254 220P 6.8K 50N1 R255 CN204 +15A IC208 C265 AUXR M5218AFPE3 0.1P (OP.AMP) AUXL R247 +VCC C259 C260 C261 C262 -VCC 470P 470P 470P 470P C266 R254 0.1P CN203 -15A C256 R250 C253 220P 6.8K 50N1 AMPL AMPR +15A...
  • Page 105 SCHEMATIC DIAGRAM-13 MAIN 4/4 CIRCUIT SDOE[0-5] SDIE[0-5] RCKX LRCKX MTNG LRCK SDO0 CKOUT +3.3D Z306 4.7Kx4 Z304 4.7Kx4 Z301 220x4 Z302 220x4 ZC301 D301 D303 +3.3D 100Px4 MA121TX MA159ATX CN301 ZC302 100Px4 +3.3 C319 0.1P KS0 4 KF1 5 KS1 6 Z305 22Kx4 Z307...
  • Page 106 SCHEMATIC DIAGRAM-14 IC302 T7SZ32FUT85L (2 INPUT OR GATE) 1 2 3 4 5 R313 +3.3D C306 C311 C309 C313 WCEY1 WCEY0 WAY0 WAY1 WAY2 WAY3 WAY4 WAY5 WAY6 WAY7 WAY17 WAY18 WAY20 WAY21 Z308 +3.3D 4.7Kx4 WAY19 WAY8 WAY9 Z309 WAY10 4.7Kx4 WAY11...
  • Page 107 SCHEMATIC DIAGRAM-15 +3.3D JP301 JP302 C315 IC304 QSIGX3C64014 Z326 (64M BIT MASK ROM) VCC BYTE 470x4 Z318 470x4 Z319 470x4 Z320 470x4 Z321 470x4 Z322 IC303 470x4 T7SZ32FUT85L (2 INPUT OR GATE) VSS VSS R314 R315 1 2 3 4 5 R316 C316 Z323...
  • Page 108 SCHEMATIC DIAGRAM-16 AS CIRCUIT ACP CIRCUIT POWER PRODUCTS FOR TRANSFORMER X XS XT XD XA QSRGT005AA BLUE 4700P BLACK JK1 L1 POWER QLQGT2T100SA CORD BLUE 125V0.1 PRODUCTS FOR P PC ERA1502V5 4700P 3.3K LEDK LEDA 130uHx3 JK1 L1 QLQGT2T100SA PRODUCTS FOR OTHERS 800MA 4700P JK1 L1...
  • Page 109 SCHEMATIC DIAGRAM-17 +VCC1 QLBG005A QLBG005A +VCC 2SD2374A-P MA4180 2SC1815 SVDGS3V20-15 +15A 16V10 50V6800 R101 50V1 MA4160M 16V10 SVDGS3V20-15 6.8K R102 50V1 MA4160M 16V100 6.8K ERA1502V5 ERA1502V5 -15A 16V100 50V6800 SVDGS3V20-15 2SA1015 MA4180 SVDGS3V20-15 2SB1548A-P 2SA1015 +15HM QLBG005A QLBG005A EK04W -VCC PMUT -VCC1 3.3K...
  • Page 110 SCHEMATIC DIAGRAM-18 ASUB CIRCUIT +15A +VCC-A C102 R107 680P R101 220 R105 Q121 Q101 2SC1815 2SA1015 Q107 2SC1815 Q105 2SA970 R104 D104 4.7K Q109 Q104 2SA1015 -15A -15A 2SA1015 R109 +15A +15A -VCC -VCC-A Q103 +VCC +VCC-A D101 R110 2SA1015 MA165 GATE-A2 D103...
  • Page 111 SCHEMATIC DIAGRAM-19 CPL CIRCUIT +5IP M37471M2196S (8BIT MICROCOMPUTER) START SUMR /STOP SUML SYNCHRO ROUT START LOUT +5IP TEMPO 6V220 HELP QRVG25P01B53 OTHER EFOEC4004T3 PARTS/TR +5IP XOUT MAIN R1 0 R2 0 0.0022 +5IP VREF VREF +5IP 6V100 2SA830STPB LN282RPXVTX3 INTRO& 4.7K 4.7K +5IP...
  • Page 112 SCHEMATIC DIAGRAM-20 SW20 SW14 MUSIC SW25 SW32 SOUL& STYLE FADE IN DEMO 8&16BEAT DISCO ARRENGER SW21 SW15 SW26 MUSIC SW33 GOSPEL& SPLIT STYLE FADE OUT BALLAD BLUSE ARRENGER1 POINT SW22 SW27 SW16 MUSIC SW34 PIANIST COUNTRY& SOUND STYLE JAZZCOMBO SONG WESTERN ARRENGER2 ARRENGER...
  • Page 113 SCHEMATIC DIAGRAM-21 SW54 MUTE DOWN 1 SW55 MUTE UP 1 SW56 MUTE DOWN 2 SW57 SW49 MUTE CPL 1 UP 2 SW58 SW50 MUTE CPL 2 DOWN 3 SW59 SW51 MUTE CPL 3 UP 3 SW44 SW60 SW52 MUTE CPL 4 CONTRAST DOWN 4 SW45...
  • Page 114 SCHEMATIC DIAGRAM-22 CPR CIRCUIT +5IP M37471M2196S (8BIT MICROCOMPUTER) STRINGS & VOCAL PLAY EASY REC BRASS +5IP SAX& WOODWIND SW10 ORGAN& DISK ACCORDION SW11 EFOEC4004T3 FAVORITES SYNTH SW12 PROGRAM SOUND MENUS EXPLORER XOUT R1 0 R2 0 0.0022P +5IP VREF 2SA830 LN282RPXVTX3 LN282RPXVTX3 SOUND...
  • Page 115 SCHEMATIC DIAGRAM-23 SW13 SW32 SW40 SW19 SW25 MULTI PART PAGE EFFECT MIXTURES GRAND SELECT DOWN SW20 SW33 SW41 SW14 SW26 GUTAR& PART PAGE CHORUS HARPSI UPLIGHT SELECT SW21 SW34 SW42 SW15 SW27 MALLET& PART DISPLAY REVERB CRCHPERC ELECTRIC SELECT HOLD SW16 SW22 SW28...
  • Page 116 SCHEMATIC DIAGRAM-24 SW55 SW63 SW47 PANEL MUTE MEMORY 1 DOWN 5 SW48 SW56 SW64 NEXT PANEL MUTE BANK MEMORY 2 UP 5 SW49 SW57 SW65 BANK PANEL MUTE VIEW MEMORY 3 DOWN 6 SW58 SW66 SW50 PANEL MUTE CPR 1 MEMORY 4 UP 6 SW59...
  • Page 117 SCHEMATIC DIAGRAM-25 MKB1 CIRCUIT HD74LS138P +VCC (3 TO 8 DECODER) 6.3V47 UNLESS OTHERWISE SPECIFIED: DIODES ARE MA165.
  • Page 118 SCHEMATIC DIAGRAM-26...
  • Page 119 SCHEMATIC DIAGRAM-27 MKB2 CIRCUIT UNLESS OTHERWISE SPECIFIED: DIODES ARE MA165.
  • Page 120 SCHEMATIC DIAGRAM-28 HD74LS138P (3 TO 8 DECODER) +VCC...
  • Page 121 SCHEMATIC DIAGRAM-29 HD74LS138P (3 TO 8 DECODER) +VCC...
  • Page 122 SCHEMATIC DIAGRAM-30...
  • Page 123 SCHEMATIC DIAGRAM-31 PKB CIRCUIT PEDAL CORD CN1 +5 PEDAL QSTGT001AA QSTGT001AA QSTGT001AA 4.7K 4.7K 4.7K INVL CIRCUIT QTDG003A +5IP MAIN2/4 CIRCUIT +5IP CCFLV R1 5.6K (CN108) ON SCHEMATIC DIAGRAM 6 R2 5.6K 6V1000 0.047 2SD592ARSTA 2SD592ARSTA 1 FRM LOAD 2 LOAD 3 CP 4 VDD 5 VSS...
  • Page 124 SCHEMATIC DIAGRAM-32 JACK CIRCUIT PEDAL IN SOFT QLBG005A SUST SOSU 0.1P QLQGT1B800MA QLQGT1B100MA QLQGT1B100MA MRXD MTXD MIDI THRU 130uHx3 0.1P 2SA9335TRS 220P MIDI OUT 130uHx3 COMPUTER 2SA9335TRS 220P MIDI SVIGTLP513 QLQGT1B100MA MSEL (PHOTO COUPLER) TXD- MIDI IN 130uHx3 MIDI TXD+ 1,7,8 RXD+ RXD-...
  • Page 125 SCHEMATIC DIAGRAM-33 JACK2 CIRCUIT HEADPHONE2 0.1P LEDK LEDA 130uHx3 HEADPHONE1 0.047P 0.047P SEL4214RLC05 POWER INDICATOR...

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Sx-pr603m