Roland E-50 Service Notes
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Aug. 2006

TABLE OF CONTENTS

EXPLODED VIEW (TOP)
CIRCUIT BOARD (MAIN)
CIRCUIT DIAGRAM (MAIN 1/4)
CIRCUIT DIAGRAM (MAIN 2/4)
CIRCUIT DIAGRAM (MAIN 3/4)
CIRCUIT DIAGRAM (MAIN 4/4)
CIRCUIT BORD (AUDIO)
CIRCUIT DIAGRAM (AUDIO)
CIRCUIT BOARD (RIGHT CONTROL, LEFT CONTROL
CIRCUIT DIAGRAM (RIGHT CONTROL 1/2)
CIRCUIT DIAGRAM (RIGHT CONTROL 2/2)
CIRCUIT DIAGRAM (LEFT CONTROL)
CIRCUIT DIAGRAM (CENTER CONTROL)
CIRCUIT BOARD (VOLUME, ENCODER, CARD PROTECT
HEADPHONES,POWER SWITCH)
Copyright © 2006 by ROLAND CORPORATION
All rights reserved. No parts of this publication may be reproduced in any form whithout the written permission of
ROLAND CORPORATION.
10/11
14/15
16/17
18/22
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
SN00098
2/3
CIRCUIT DIAGRAM (VOLUME)
4
CIRCUIT DIAGRAM (ENCODER)
6/7
CIRCUIT DIAGRAM (CARD PROTECT)
CIRCUIT DIAGRAM (HEADPHONES)
8/9
CIRCUIT DIAGRAM (POWER SWITCH)
12
LDC DISPLAY CHECK
K6018647
SERVICE NOTES
Preliminary
Issued by RES
Printed in Italy
E-50
80
81
81
82
83
24
29
25
26
28
29
30
31
32
33
37
38
39
40
41
47
48
49

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Summary of Contents for Roland E-50

  • Page 1: Table Of Contents

    CIRCUIT BOARD (VOLUME, ENCODER, CARD PROTECT OPERATIVE SYSTEM AND MUSIC DATA UPDATE HEADPHONES,POWER SWITCH) 78/79 Copyright © 2006 by ROLAND CORPORATION All rights reserved. No parts of this publication may be reproduced in any form whithout the written permission of ROLAND CORPORATION. SN00098...
  • Page 2: Specifications

    Aug. 2006 SPECIFICATIONS User Programs: Keyboard: 144 Set List references for access via front panel Unlimited access Internal memory, memory card, 61-note synthesizer-action keyboard (E-50) floppy disk (via FINDER) Sound source: Additional functions Parameter Hold Max. polyphony 64 voices Song Link...
  • Page 3 External AC adapter, DATABASE MANAGER software Options PK-5A Dynamic MIDI Pedal, MSA/MSD/MSE series floppy disks (Roland & third-party), RH-25/50/200/300 Headphones, DP-2 Pedal switch, DP-6 Pedal switch (piano type), BOSS FS 5U Foot switch, EV-5/7 Expression pedal, BOSS FV-300L Volume/Expres- sion pedal, KC-150/350/550 Keyboard amplifiers Memory cards (third-party manufacturers) Note: Specifications are subject to change without prior notice.
  • Page 4: Disassembly

    Aug. 2006 DISASSEMBLY SCREW 2.9X13 TC BZ TFR T.7 TROP HILO #J2289274...
  • Page 5 E-50...
  • Page 6: Location Of Controls

    Aug. 2006 E-50 LOCATION OF CONTROLS CONTRAST DATA ENT RY MUSIC RECORDER ASSISTANT PLAY NEXT MINUS 16-TRK LIST SONG SEQ. SONG MARK JUMP STYLE LYRICS & MAKEUP FINDER PLAY SCORE TOOLS STOP USER SONG STYLE NUMERIC PAD (PUSH) SONG TONE...
  • Page 7 K2278104 RIGHT SPEAKER GRILL E-50/E-60 K2278105 LEFT SPEAKER GRILL E-50/E-60 02900867 CARD EJECTOR SCAB1A5600 7778109000 CARD PROTECT PCB ASSY E-50/E-60 J2589110 61-KEY TP/7BA+C(DR) KEYBOARD 65074700 7778203000 SILK.+VARN. TOP CABINET E-50 7778105000 RIGHT CONTROL PCB ASSY E-50/E-60 7778202000 LEFT CONTROL PCB ASSY...
  • Page 8: Exploded View Silk.+Varn. Lcd Cover

    EXPLODED VIEW SILK.+VARN. LCD COVER No. Pa rt No. Description 11 11 7778103000 AUDIO PCB ASSY E-50/E-60 7778109000 CARD PROTECT PCB ASSY E-50/E-60 7778201000 MAIN BOARD PCB ASSY E-50 12 12 J3809164 RESISTOR 3.3 OHM 10W +HEATSINK J5039111 LCD SP14Q006-ZZA+TOUCH PANEL...
  • Page 9: Exploded View Bottom

    K2358105 PRESSURE RUBBER FOOT K2018131 SOUNDPROOFED BOTTOM CBNT+BOX E-50 K1188130 TWEETER SUPPORT EM2000/EG101 K2418131 TWEETER SPEAKER 4 OHM E-50/E-60 K2418130 WOOFER SPEAKER 4 OHM Z001401 K2228103 SPEAKER GASKET 108/88 TH.2 Screw J2289287 SCREW 2.9X13 TC PR BZ TFR H.7 HILO...
  • Page 10 E-50...
  • Page 11: Keyboard Parts List

    Aug. 2006 E-50 KEYBOARD PARTS LIST PARTS NAME CODE RJA Num. SPRING F/KEY 55 GR. No.118(23105270) J2179116 - NATURAL KEY C5 J2579123 NATURAL KEY D6 J2579124 NATURAL KEY E7 J2579125 NATURAL KEY F1 J2579126 NATURAL KEY G2 J2579127 NATURAL KEY A3...
  • Page 12: Wiring Diagram

    Aug. 2006 E-50 WIRING DIAGRAM LCD SP14Q006-ZZA+TOUCH PANEL J5039111 LCD SP14Q006-ZZA TOUCH PANEL Touch Panel Pitch-Bender K3278112 1 TURN 53015-0610 52207-0467 B13B-PH B9B-PH-SM4-TB B9B-PH B13B-PH 006207341914000 8-188275-6 CN10 VOLUME CENTER (AMP) CN11 8-188275-6 B5B-PH S5B-PH BOARD RIGHT CONTROL BOARD CONT. B.
  • Page 13: Parts List

    E-50/E-60 K2018131 SOUNDPROOFED BOTTOM CBNT+BOX E-50 K2028148 SILK.+VARN. LCD COVER E-50 7778203000 SILK.+VARN. TOP CABINET E-50 K2198121 BLACK VARNISHED MUSIC REST E-50/E-60 22208320 MUSIC SCORE HOLDER KNOB BUTTON K2478418 ENCODER BLACK KNOB G-70 K2478439 BLACK KNOB+WHITE INSERT E-80 3249559701 SWITCH CAP K2478440 42-BUTTON GROUP (RIGHT COND.PAD) E50/60...
  • Page 14 I.C. TA7805 AF IC24 on Main B. J5259163 I.C. LP2950 CZ-3.3 IC2 on Audio B. 7778204000 I.C. FLASH 512M IC4 CPU E-50/E-60 IC 4 on Main B. 7778207000 I.C. FLASH IC2 CPU E-50 IC2 on Main B. J5259194 I.C. HD6417706F133V IC1 on Main B.
  • Page 15 Aug. 2006 15129623 TRANSISTOR 2SD-667C Q18 on Audio B. DIODE 01897189 DIODE MA147-(TX) CHIP D8 on Main B. D5,D10,D25,D26,D28 on Audio B. J5019123 DIODE SCHOTTKY SK13 CHIP D2,D4,D6,D8 on Audio B. 02780401 CEA SCHOTTKY DIODE MA720-(TX) D1 on Main B. D27 on Audio B.
  • Page 16 E-50 CAPACITOR 15359774 POLYEST.COND. 0805 680P 5% C157,C171,C187,C203 on Main B. J3629144 ELCTRL.COND. 470UF 16V AX C3 on Left Control B 13639154 ELECTRL.COND.-V 1000UF 16V C28,C142,C154,C189,C191 on Audio B. 13639153RI ELECTRL.COND.-V 470UF 16V C8 on Right Control B. J3629122 ELECTRL.COND.-V 1000UF 25V C190 on Audio B.
  • Page 17 W SEMS W/WASHER M2*10 BZC PACKING K2678102 POLYETH. ENVELOPE 25X45 K2678105 CARTENE ENVELOPE HD 140X57 K2678106 POLYETH.ENVELOPE 40X55 K2638340 RIGHT LDPE PROTECTION E-50 K2638341 LEFT LDPE PROTECTION E-50 K2638342 CENTRAL LDPE PROTECTION E-50 K2638343 ADHESIVE LDPE WEDGE E-50/E-60 K2668107 DIE-CUT CARDB0ARD SHEET 450X1153...
  • Page 18 E-50...
  • Page 19: Items Required

    Keep the buttons MUSIC ASSISTANT, COVER, MAKEUP TOOLS pressed and turn on the E-50 N.B. The performance of the tests is checked by the E-50, it is therefore necessari to perform them all, otherwise it will not be possibile to continue in some cases.In any case to pass to one test (without performing it) to another at any moment, keep the button ONE TOUCH 1 pressed and then press the...
  • Page 20: Touch Screen Calibration

    1.2 Touch Screen Calibration Enter the “INTERNAL TEST” mode (cf. paragraph 1.1) Wait for the initialization of the E-50 to start. Using the touch screen pen, touch for a second, the points shown on the display, the sequenze is the following:...
  • Page 21: Protect Switch Test

    Aug. 2006 1. Protect Switch Test Make sure that the display shows Unprotect with the switch in the “NON PROTECTED” position. Make sure that the display shows Protect with the switch in the “PROTECTED” position. If both conditions have occurred the “marking” symbol will appear to confirm the positive outcome of the test. Press the icon NE T to pass to the next test.
  • Page 22 E-50 1.4 Version The video will show the information on the versions installed. MUSICAL DATA MUSICAL DATA missing present Check that the data of the versions match with the la test updates available; if the version of the Musical Data is not displayed, it means that the loading of the data has not been carried out.
  • Page 23: Touch Screen Check

    Aug. 2006 1.5 Touch Screen Check Using the Touch Screen pen, touch all 10 squares outlined on the display or trace a diagonal line from top to bottom If the Touch Screen works correctly, each square touched will be coloured in grey. After having touched all the squares the instrument will automatically pass to the next test.
  • Page 24 E-50 1.6 LCD display Check Each of the four buttons of the TONE section flashing (PIANO E. PIANO, ORGAN ACCORD, GUITAR BASS, STRINGS VOCAL) is associated with a test for the LCD; press them one at a time and check that the LCD works correctly.
  • Page 25: Switch And Led Check

    Aug. 2006 1.7 Switch and Led Check From the previous test the display shows: Press one at a time all the buttons, respecting the sequenze shown in the figure below; the display shows the button to be pressed each time and, if any, the associated led flashes.
  • Page 26: Encoder Check

    E-50 1.8 Encoder Check Let the Encoder make a complete turn clockwise: the display should show a growing value from 0 to 25 (Value) and the “marking” symbol near Let the Encoder make a complete turn counter-clockwise: the display should show a decreasing value from 25 to 0 (Value) and the “marking”...
  • Page 27: Pitch Bender Calibration

    Leave the Pitch Bender lever in the rest position (the bar on the LCD should be coloured in red for about its half) Press the LIST button (USER PROGRAM section) on the E-50. Keep the lever of the Pitch Bender all to the left, without forcing it, (the bar on the LCD should be almost completely white)
  • Page 28: Pedal And Potentiometer Check

    E-50 Pedal and Potentiometer Check 1.10 1.10.1 PITCH BENDER Check With the PITCH BENDER lever released, check that the display shows the value 64 (near the writing Pitch Bender:) Move the lever all to the left: check that the display shows the value 0 Move the lever all to the right: check that the display shows the value 127 If all the tests were carried out correctly, the display will show a “marking”...
  • Page 29 Aug. 2006 1.10. BALANCE potentiometer check Turn the BALANCE potentiometer all to the left (ACCOMP) and check that the display shows the value 0 (near the writing Balance:) Turn the BALANCE potentiometer all to the right (KEYBOARD) and check that the display shows the value 127 Bring the BALANCE potentiometer to the central position and check that the display shows the value 64 Durino the test check that the potentiometer runs smoothly and in particular make sure that it “clicks”...
  • Page 30 Connect the two switch pedals (i.e. DP-8) on the Foot Switch E pression and Hold sockets. Check that the display of the E-50 shows the writing OFF near the writings Sustain Pedal and Foot Switch Press the SWITCH PEDAL relative to the Foot Switch E pression and check that the display shows ON near the writing Foot Switch Press the SWITCH PEDALS relative to the Hold socket and check that the display shows ON near the writing Sustain Pedal If all the tests were carried out correctly, the display will show two “marking”...
  • Page 31 Aug. 2006 1.10.5 E PRESSION pedal socket Check Connect the Expression Pedal (i.e. EV-5) FOOTSWITCH E PRESSION socket With the pedal position at the minimum the display must show 0 (near the writing E pression Pedal With the pedal position at the maximum make sure that the display shows the value 127. If all the tests were carried out correctly, the display will show a “marking”...
  • Page 32: Memory And Dsp Check

    E-50 1.11 Memory and DSP Check Wait for all the tests to be carried out and check that they were all concluded successfully (a “marking” symbol is shown for each test). At the end of the tests, touch the icon NEXT, to pass to the next test.
  • Page 33: Midi And Usb Socket Check

    Without MIDI and USB connections, check that the display shows NG near the writings MIDI Test result and USB Test result Using a MIDI cable, connect the MIDI IN with the MIDI OUT of the E-50: check that the display shows OK near the writing MIDI Test result...
  • Page 34: Floppy Disk Drive Check

    E-50 1.1 FLOPPY DISK Driver Check Insert a protected disk and check that the display shows a “marking” symbol near the writing Test Protect Dis Insert a DD disk and check that the display shows a “marking” symbol near the writing Test 2DD Dis Insert a DD disk and check that the display shows a “marking”...
  • Page 35: Pcmcia Slot Check

    Aug. 2006 1.14 PCMCIA slot Check Insert the Card PCMCIA Card for the test Wait for the result (about 30 seconds) and then check that the display shows the message CARD TEST OK At the end of the test, remove the Card and touch the icon NEXT, to pass to the next test.
  • Page 36: Audio Checks And Measurament

    E-50 1.15 Audio Checks and Measurements 1.15.1 Audio Chec on the Spea ers With the VOLUME potentiometer at maximum, check that no noises or bruises can be hear from the speakers Press the icons LOW, MID, HIGH to listen to the notes with different frequencies from the four speakers; at the end press the icon MID...
  • Page 37 Aug. 2006 1.15.2 Maxx Bass and Effects Check Check that the Max Bass check has been carried out successfully (OK); in cas of error NG will appear Press the icon ON, first in the Rev section then in the Cho section, to listen to the Reverb and Chorus effects; check the presence of the effect and the quality of the sound.
  • Page 38 E-50 1.15. OUTPUT e its Measurements Connect the (L/R) OUTPUT exits with an external amplified instrument. Press the icons MID and L (the MUTE must be OFF) Check that the sound is clean and comes from the LEFT loudspeaker of the external amplified instrument only.
  • Page 39 Aug. 2006 1.15.2 MaxxBass and Effects Check Check that the Max Bass check has been carried out successfully (OK); in cas of error NG will appear Press the icon ON, first in the Rev section then in the Cho section, to listen to the Reverb and Chorus effects; check the presence of the effect and the quality of the sound.
  • Page 40 E-50 1.15.4 Measurement of the PHONES exits Connect the headphones with the PHONES 1 exit of the E-50 Press the icons MID and L (the MUTE must be OFF) Check that the sound is clean and comes from the LEFT loudspeaker of the headphones only.
  • Page 41 Activating/disactivating the MUTE (press the icons ON and OFF), check that the sound is immediately cancelled and then returns after 1-2 seconds respectively. Mute on Mute off Repeat the above tests by connecting the headphones to the PHONES 2 socket of the E-50. Press the icon NEXT The Test Mode is now completed.
  • Page 42: Factory Reset

    E-50 Turn on the instrument, wait for the initialization of the E-50, press the MENU button Select the UTILITY icon on the right side of the display Select the FACTORY RESET icon on the top of the display, then select the icon EXECUTE: the Factory Reset will start...
  • Page 43: Check Out The Version

    Aug. 2006 Turn on the instrument with the MUSIC ASSISTANT button pressed. After the initialization, a video will appear with the information of the versions Check that the versions are all present; if the version of the Musical Data does not appear, it means that the loading of the musical data was not carried out.
  • Page 44: Operative System And Music Data Update

    Contains the User Program files It is possible to access this structure by connecting the E-50 to a PC fitted with Win98ME, Win2000/XP, MAC, by means of a USB cable: Connect the E-50 to a PC by means of a USB cable.
  • Page 45 - Insert the card into a PC by means of the relative PCMCIA adaptor. - Decompress the files contained in the zip. update file (E50_Factory_Data_Vxxx.zip) in a temporary file of the PC called for instance “E-50”. - Open the file previously created in the PC called “E-50” containing the data.
  • Page 46 - Press the button “INTERNAL MEMORY” on the display. A new virtual drive “E50_SSD” will be added on the computer resources. - Decompress the files container in the data update zip (E50_Factory_Data_Vxxx.zip) into a temporary file of the PC called for instance “E-50”.
  • Page 47 - Press the “8BEAT 16BEAT” switch on the panel, STYLE section. - The E-50 will carry out a deep check of the system, if the file will turn out to be correct, it will start the update phase. A progression bar will show the status of the updating.
  • Page 48 - Press the “8BEAT 16BEAT” switch on the panel, STYLE section. - The E-50 will carry out a deep check of the system, if the file will turn out to be correct, it will start the update phase. A progression bar will show the status of the updating.
  • Page 49 Aug. 2006 CIRCUIT BOARD ASSY (MAIN) View from component side...
  • Page 50 E-50 CIRCUIT BOARD (MAIN) View from solder side...

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