Roland EM-10, EM-20 Service Manual 电路图.pdf

《Roland EM-10, EM-20 Service Manual 电路图.pdf》由会员分享，可在线阅读，更多相关《Roland EM-10, EM-20 Service Manual 电路图.pdf（23页珍藏版）》请在收音机爱好者资料库上搜索。

1、SCREW 2,9 X13 TC TC PR TROP COD. J2289130 TABLE OF CONTENTSPage SPECIFICATIONS1 LOCATION OF CONTROLS EM-202 LOCATION OF CONTROLS EM-103 EXPLODED VIEW EM-20/EM-104 WIRING DIAGRAM EM-20/EM-105 KEYBOARD PARTS LIST5 PARTS LIST EM-20/EM-106/7 BLOCK DIAGRAM (EM-20)8 BLOCK DIAGRAM (EM-10)9 MAIN PCB ASSY EM

2、-20/EM-1010 CIRCUIT DIAGRAM MAIN PCB ASSY (EM-20)11 CIRCUIT DIAGRAM MAIN PCB ASSY (EM-10)12 CPU PCB ASSY EM-20/EM-1013 CIRCUIT DIAGRAM CPU PCB ASSY (EM-20)14 CIRCUIT DIAGRAM CPU PCB ASSY (EM-10)15 CONTROL PCB ASSY EM-20 16 CIRCUIT DIAGRAM CONTROL PCB ASSY (EM-20)17 CONTROL PCB ASSY EM-1018 CIRCUIT D

3、IAGRAM CONTROL PCB ASSY (EM-10)19 RIGHT CONTACT PCB ASSY w/RUBBER CONTACT C26IC8;C27 Memory Setting YesYes NIUNIU 14 A B C D E F G H I L M N O P Q R S T U J K 123456789101213141516171819202122232425262728293011 EM-20/EM-10July, 1999 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 A21 5VD ADDRESS B

4、US DATA BUS PORT BUS C26IC8;C27 Memory Setting YesYes NIUNIU 15 CIRCUIT DIAGRAM (CPU PCB ASSY EM-10) A B C D E F G H I L M N O P Q R S T U J K 123456789101213141516171819202122232425262728293011 EM-20/EM-10July, 1999 CONTROL PCB ASSY ASSY 7711003000 for EM-20 View from component side 16 A B C D E F

5、G H I L M N O P Q R S T U J K 123456789101213141516171819202122232425262728293011 EM-20/EM-10July, 1999 CIRCUIT DIAGRAM (CONTROL PCB ASSY EM-20) SW15SW16 1 2 D15 1 2 D16 S S D 6 S S D 7 ALL DIODES D1.D64 IN THIS SHEET ARE 1N4148 GROUP_A/BSTYLE_SONG SW12SW13SW14 1 2 D11 1 2 D12 1 2 D13 1 2 D14 S S D

6、3 S S D 4 S S D 5 SW4SW5SW6 1 2 D4 1 2 D5 1 2 D6 REC DATA M U X TRANSPOSE SW1 SW9SW10SW11 1 2 D1 1 2 D9 1 2 D10 S S D 0 S S D 1 S S D 2 SSC7 SSC6 D A T A KBD_VEL SYNC_STARTBASS_INV TONE1TONE2TONE3 STY_PROG+STY_PROG- SW17SW18 SW25SW26 SW33SW34SW35 SW41SW42SW43 1 2 D17 1 2 D18 1 2 D25 1 2 D26 1 2 D33

7、1 2 D34 1 2 D41 1 2 D42 1 2 D49 1 2 D50 SSC5 SSC4 SSC3 SSC2 SSC1 MODE_ORGANMODE_ARRANGER MODULATIONBEND_UPBEND_DWN SW27 USER_WRITESTART/STOP TONE4TONE5TONE6 INTEL/LAYERUPPER 1/2 SW30 SW36SW37SW38 SW44SW45SW46 1 2 D30 1 2 D35 1 2 D36 1 2 D37 1 2 D38 1 2 D43 1 2 D44 1 2 D45 1 2 D46 1 2 D51 1 2 D52 1 2

8、 D53 1 2 D54 MODE_MDRUM ASSIGNVOLUME_UPVOLUME_DWN 1 2 D27 TEMPO+TEMPO- TONE_VAR TONE7TONE8 STY_MORPH+STY_MORPH- METRONOME SW23SW24 SW31SW32 SW39SW40 SW47SW48 1 2 D23 1 2 D24 1 2 D31 1 2 D32 1 2 D39 1 2 D40 1 2 D47 1 2 D48 1 2 D55 1 2 D56 STYLEONE TOUCH UPPER+UPPER- ENDING SW55SW56 SW63SW64 1 2 D63 1

9、 2 D64 VARIATION MUX A 1 B 2 C 3 Y0 15 Y1 14 Y2 13 Y3 12 Y4 11 Y5 10 Y6 9 Y7 7 G1 6 G2A 4 G2B 5 V C C 1 6 G N D 8 IC6 74HC238 SC0 SC1 SC2 SC4 5VD 5VD ACC_LOW+ACC_LOW- INTRO SW52SW53SW54 SW60SW61SW62 1 2 D59 1 2 D60 1 2 D61 1 2 D62 BASS- ORIGINALFILL SSC0 SSC1 SSC2 SSC3 SSC4 SSC5 SSC6 SSC7 C1 100nF A

10、 1 B 2 C 3 Y 0 1 5 Y 1 1 4 Y 2 1 3 Y 3 1 2 Y 4 1 1 Y 5 1 0 Y 6 9 Y 7 7 G 1 6 G 2 A 4 G 2 B 5 VCC 16 GND 8 IC8 74HC238 A 1 B 2 C 3 Y 0 1 5 Y 1 1 4 Y 2 1 3 Y 3 1 2 Y 4 1 1 Y 5 1 0 Y 6 9 Y 7 7 G 1 6 G 2 A 4 G 2 B 5 VCC 16 GND 8 IC9 74HC238 C4 33uF16 3 4 5 6 7 8 2 1 9 20 19 18 17 16 15 14 13 12 1110 CN1

11、 AMPC1.2720P SC0 SC1 SC2 SC3 SC4 RIBB 5VREF5VD C10 10uF16 DRUM+DRUM- CHORUSREVERBDEMO SW49SW50SW51 SW57SW58SW59 1 2 D57 1 2 D58 SSC0 BASS+ TO RIBBON R6 10K R9 1K SSD0 SSD1 SSD2 SSD3 SSD4 SSD5 SSD6 SSD7 RIBB 5VREF R10 100K R7 820 R8 820 R5 10K NIU 1 2 3 4 5 6 8 7 CN5 5597-08APB C9 1uF16 NIU 1 2 D65 B

12、ZW04-5V8B TO LCD Bulb Lamp C6 100uF16 21 CN2 5045-02A NIU 5VD to Left Keyb Pcbto Right Keyb Pcb 3 4 5 6 7 8 2 1 9 10 11 12 13 14 15 16 CN4 AMPC1.2716P 3 4 5 6 7 8 2 1 9 10 11 12 13 14 15 16 CN3 AMPC1.2716P MK0 BR0 MK1 BR1 MK2 BR2 MK3 BR3 MK4 BR4 MK5 BR5 MK6 BR6 MK7 BR7 B R 0 B R 1 B R 2 B R 3 B R 4

13、B R 5 B R 6 B R 7 M K 0 M K 1 M K 2 SSD0 SSD1 SSD2 SSD3 SSD4 SSD5 SSD6 SSD7 SSD0 SSD1 SSD2 SSD3 SSD4 SSD5 SSD6 SSD7 5VD B R 0 B R 1 B R 2 B R 3 B R 4 B R 5 B R 6 B R 7 M K 0 M K 1 M K 2 M K 3 M K 4 M K 5 M K 6 M K 7 C7 100nF 4 5 6 7 8 932 1 CA1 8x100pF 4 5 6 7 8 932 1 CA2 8x100pF SC3SC4 0 1 0 0 1 1

14、SWITCHES SWITCHES MK0-MK7 BR0-BR7 X X M K 3 M K 4 M K 5 M K 6 M K 7 C8 100nF To CPU Board Cn4 17 A B C D E F G H I L M N O P Q R S T U J K 123456789101213141516171819202122232425262728293011 EM-20/EM-10July, 1999 View from component side 18 CONTROL PCB ASSY ASSY 7711101000 for EM-10 A B C D E F G H

15、I L M N O P Q R S T U J K 123456789101213141516171819202122232425262728293011 EM-20/EM-10July, 1999 SW15SW16 1 2 D15 1 2 D16 S S D 6 S S D 7 ALL DIODES D1.D64 IN THIS SHEET ARE 1N4148 GROUP_A/BSTYLE_SONG SW13 1 2 D13 S S D 3 S S D 4 S S D 5 SW4SW5SW6 1 2 D4 1 2 D5 1 2 D6 REC 1 2 D11 DATA M U X TRANS

16、POSE SW1 SW9SW10 1 2 D1 1 2 D9 1 2 D10 S S D 0 S S D 1 S S D 2 SSC7 SSC6 SW11 D A T A KBD_VEL SYNC_START TONE1TONE2TONE3 STY_PROG+STY_PROG- SW17SW18 SW25 SW41SW42SW43 1 2 D17 1 2 D18 1 2 D25 1 2 D41 1 2 D42 SSC5 SSC4 SSC3 SSC2 SSC1 SW27 USER_WRITE MODE_ARR_MDRUMMODE_ORGAN START/STOP TONE4TONE5TONE6

17、INTEL/LAYER SW30 SW37SW38 SW44SW45SW46 1 2 D30 1 2 D37 1 2 D38 1 2 D43 1 2 D44 1 2 D45 1 2 D46 1 2 D53 1 2 D54 VOLUME_UPVOLUME_DWN 1 2 D27 TEMPO+TEMPO- TONE_VAR TONE7TONE8 STY_MORPH+STY_MORPH- METRONOME SW23SW24 SW31SW32 SW39SW40 SW47SW48 1 2 D23 1 2 D24 1 2 D31 1 2 D32 1 2 D39 1 2 D40 1 2 D47 1 2 D

18、48 1 2 D55 1 2 D56 STYLEONE TOUCH UPPER+UPPER- ENDING SW55SW56 SW63SW64 1 2 D63 1 2 D64 VARIATION MUX A 1 B 2 C 3 Y0 15 Y1 14 Y2 13 Y3 12 Y4 11 Y5 10 Y6 9 Y7 7 G1 6 G2A 4 G2B 5 V C C 1 6 G N D 8 IC6 74HC238 SC0 SC1 SC2 SC4 5VD 5VD INTRO SW53SW54 SW60SW61SW62 1 2 D59 1 2 D60 1 2 D61 1 2 D62 ORIGINALF

19、ILL ARRANGER+ARRANGER- SSC0 SSC1 SSC2 SSC3 SSC4 SSC5 SSC6 SSC7 C1 100nF A 1 B 2 C 3 Y 0 1 5 Y 1 1 4 Y 2 1 3 Y 3 1 2 Y 4 1 1 Y 5 1 0 Y 6 9 Y 7 7 G 1 6 G 2 A 4 G 2 B 5 VCC 16 GND 8 IC8 74HC238 A 1 B 2 C 3 Y 0 1 5 Y 1 1 4 Y 2 1 3 Y 3 1 2 Y 4 1 1 Y 5 1 0 Y 6 9 Y 7 7 G 1 6 G 2 A 4 G 2 B 5 VCC 16 GND 8 IC

20、9 74HC238 C4 33uF16 3 4 5 6 7 8 2 1 9 20 19 18 17 16 15 14 13 12 1110 CN1 AMPC1.2720P SC0 SC1 SC2 SC3 SC4 5VD DEMO SW57SW59 1 2 D57 SSC0 CHORUS_REV SSD0 SSD1 SSD2 SSD3 SSD4 SSD5 SSD6 SSD7 TO LCD Bulb Lamp C6 100uF16 21 CN2 5045-02A NIU 5VD 4 5 6 7 8 932 1 CA1 8x100pF to Left Keyb Pcbto Right Keyb Pc

21、b 3 4 5 6 7 8 2 1 9 10 11 12 13 14 15 16 CN4 AMPC1.2716P 3 4 5 6 7 8 2 1 9 10 11 12 13 14 15 16 CN3 AMPC1.2716P MK0 BR0 MK1 BR1 MK2 BR2 MK3 BR3 MK4 BR4 MK5 BR5 MK6 BR6 MK7 BR7 B R 0 B R 1 B R 2 B R 3 B R 4 B R 5 B R 6 B R 7 M K 0 M K 1 M K 2 SSD0 SSD1 SSD2 SSD3 SSD4 SSD5 SSD6 SSD7 SSD0 SSD1 SSD2 SSD

22、3 SSD4 SSD5 SSD6 SSD7 5VD B R 0 B R 1 B R 2 B R 3 B R 4 B R 5 B R 6 B R 7 M K 0 M K 1 M K 2 M K 3 M K 4 M K 5 M K 6 M K 7 C7 100nF 4 5 6 7 8 932 1 CA2 8x100pF SC3SC4 0 1 0 0 1 1 SWITCHES SWITCHES MK0-MK7 BR0-BR7 X X M K 3 M K 4 M K 5 M K 6 M K 7 C8 100nF To CPU Board Cn4 19 CIRCUIT DIAGRAM (CONTROL

23、PCB ASSY EM-10) A B C D E F G H I L M N O P Q R S T U J K 123456789101213141516171819202122232425262728293011 EM-20/EM-10July, 1999 20 RIGHT CONTACT PCB ASSY w/RUBBER ASSY 7624504001 LEFT CONTACT PCB ASSY w/RUBBER ASSY 7624505001 CIRCUIT DIAGRAM (RIGHT CONT. PCB ASSY) CIRCUIT DIAGRAM (LEFT CONT .PCB

24、 ASSY) View from component side View from component side EM-20/EM-10July, 1999 TEST MODE EM-20, EM-10 Button description Tn1 : Tone 1 Tn2 : Tone 2 Tn3 : Tone 3 Tn4 : Tone 4 Tn8 : Exit Displaying messages When a check implies messages to be visualized, they will be shown on the display in the followi

25、ng manner: Test structure The general test menu has a hierarchical structure. You can get back to each previous menu page up to the Main Menu page. The Tone 8 button (Tn8 = Exit) allows you to interrupt any test except for: RoTest Rom RaTest Ram WrTest Wave Rom TcTouch Control Test ( Only for EM-20

26、) How to enter the Test Mode Turn the instrument on while keeping the button tn1 pressed. The Display shows: After a few seconds, it shows: After a few seconds, it shows: By pressing the following buttons, youll start the corresponding following checks: Gtn1 * P Control panel check Gtn2 * K Keyboard

27、 Check Gtn3 * AAudio check Gtn4 * M Memory check Display :P K A M Display :VerX.XX Display :Test Display: EM-20 (or EM-10)XXXXXXXXXXX T?1T?2T?3T?T?8 Gtn1 * P Control panel check By pressing the tn1 button, the display shows the following test list: P1=tn1Panel 1Control Panel check (1st part) P2=tn2P

28、anel 2Control Panel check (2nd part) l Control Panel check (1st part) tn1: By pressing the Tn1 button, the display shows the following possible check: Sus=tn1SustainFootswitch test Midi=tn2MidiMidi Test lSus tn1 By pressing the tn1 button, the display shows: Action: after inserting the connection pi

29、n into its socket, press and release the Sustain footswitch: the message ON/OFF will be shown on the display regardless of the whether the footswitch is being pressed or released. To exit, press the tn8 Exit button. To get back to the Main Menu press tn8 Exit again. lMidi tn2 By pressing the tn2 but

30、ton, youll start the Midi test:. The display shows: Action: If the message Out In is shown, the transmission and/or receipt of data has failed. After connecting the MIDI cable (you have to shortcircuit the IN/OUT sockets), the display will show either OK or Er, if there is some error. To exit, press

31、 the tn8 Exit button. To get back to the Main Menu press tn8 Exit again. l Control Panel check (2nd part) tn2: By pressing the tn2 button, youll enter the 2nd check part: The display shows: By pressing the following buttons, youll start the corresponding following tests: Sw=tn1Switch Test Tc=tn2Touc

32、h Controller Test (Attention: ONLY FOR EM-20) Lc=tn3LCD Test lSw tn1 By pressing the tn1 button, the display shows: Display:XX = (number of the button pressed) ZZ = (name of the button pressed) Action : press the switches on the control panel. The display shows the number of the switch pressed its n

33、ame and its status. When the switch is ON youll hear a sound, no sound can be heard when its off. You may not exit the switch test, unless all switches have been pressed. Otherwise the switch test stops if some fault has been detected; in this event the last switch pressed is shown on the display. T

34、o exit press the Tone 8 and Start/Stop buttons. If some switches have not been pressed, their corresponding names will appear successively on the display. To exit, press the tn8 Exit button. To get back to the Main Menu press tn8 Exit again. Display :XXZZ Display :SwTcLc Display :OUT IN Display :Sus

35、OFF Display :SusMidi Display :P1P2 21 EM-20/EM-10July, 1999 lTc tn2 (Only for EM-20) Press the tn2 button and the Display will show: Action: make sure that the value of the Touch controller ranges from 0 to 127 and changes accordingly when moving your finger towards right (0/127) and towards left (1

36、27/0) When standing still, the value shown must be 0. To exit, press the tn8 Exit button. lLc tn3 Press the tn3 button and the Display will show: Action : all the symbols and characters existing in the LCD display of EM-20/EM-10 will be shown. To exit, press the tn8 Exit button. Gtn2 * K Keyboard ch

37、eck Press the tn2 button and the display will show: Key yyVelocity zzzyy=0, C# zzz=Off,1,.,127 Action : Press some keys of the keyboard, youll hear a piano sound. The display will show the number of the pressed key, its name and velocity value. To exit, press the tn8 Exit button. Gtn3 * A Audio chec

38、k Press the tn2 button and the display will show: l Si tn1: If you press the tn1 button, youll enter the Audio test. Before carrying out the audio check, make sure that the AC/DC adaptor is the ACO 12V 1A (230V) type for the mod. EM-20, and that it is the ACN 500mA 12V (230V) type for the mod. EM-10

39、. Action : A sine wave sound having a 440 Hz frequency will be heard from the right speaker while a sine wave sound having a 1760 Hz frequency will be heard from the left speaker. Check the signal width and make sure that it is 5 Vpp on the right channel and that it is 5.2 Vpp on the left channel fo

40、r the mod. EM-10; whereas it should be 6 Vpp on the right channel and 6.2 Vpp on the left channel for the mod. EM-20. Consider a 5% tolerance value for both models as the above values are determined by a resistor divider. To exit, press the tn8 Exit button. NOTENOTE The Audio test can be carried out

41、 also when turning the instrument on. This procedure is described further on. page 23 * Audio Test tn2 on power on. Display :SinWave Display :SiFtEf Display :YYYYXXXX Display :Tch0/127 l Ft tn2: Press the tn2 button and the display will show: lW1 tn1: Then press tn1 W1, and the display will show: Ac

42、tion : A sine wave sound having a 100 Hz frequency will be heard from both, the right and the left speakers. To exit, press the tn8 Exit button. lW2 tn2: Then press tn2 W2, and the display will show: Action : A sine wave sound having a 1000Hz frequency will be heard from both, the right and the left

43、 speakers. To exit, press the tn8 Exit button. lW3 tn3: Then press tn3 W3, and the display will show: Action : A sine wave sound having a 10000Hz frequency will be heard from both, the right and the left speakers. To exit, press the tn8 Exit button. To get back to the Main Menu press tn8 Exit again

44、l Ef tn3: By pressing the tn3 button, the display will show: Rev=tn1REVERBReverb Test Cho=tn2CHORUSChorus Test lRev tn1: By pressing the tn1 button, the display will show: Action : A drum sound with a marked reverb effect will be heard from both speakers. The quality level of the reverb effect has t

45、o be assessed by ear. NOTE: Due to a multitasking problem, the first drum sound may result to have a less marked reverb effect than the following ones. To exit, press the tn8 Exit button. To get back to the Main Menu press tn8 Exit again lCho tn2: By pressing the tn2 button, the display will show: A

46、ction : A square wave sound enriched with the chorus effect will be heard from both speakers. The quality level of the chorus effect has to be assessed by ear. To exit, press the tn8 Exit button. To get back to the Main Menu press tn8 Exit again Display :Chorus Display :Reverber Display :RevCho Disp

47、lay :10000Hz Display :1000Hz Display :100Hz Display :W1W2W3 22 EM-20/EM-10July, 1999 * Audio Test tn2 on power on Before checcking the audio output, make sure that the AC/DC adaptor is the ACO 12V 1A (230V) type for EM20 and the ACN 12V 500mA (230V) type for EM-10. The display will show: Action : A

48、sine wave sound having a 440 Hz frequency will be heard from the right speaker while a sine wave sound having a 1760 Hz frequency will be heard from the left speaker. Check that the amplitude of the signal relative to the right channel is 5 Vpp and that of the signal relative to the left channel is

49、5.2 Vpp for the mod. EM-10; whereas for the mod. EM-20 it has to be 6 Vpp for the right chan- nel and 6.2 Vpp for the left channel. Consider a 5% tolerance value for both models as the above values are determined by a resistor divider. To exit, turn the instrument off. Initialization of EM-20/10 (Factory Setup) . Warning! When the Factory Setup is carried out, all the setting saved in the instrument by the user will be lost and replaced by the factory settings. PROCEDURE : Turn the instrument on while keeping the Write button pressed. In the