Roland Fantom FA-76 Service Manual 电路图.pdf

《Roland Fantom FA-76 Service Manual 电路图.pdf》由会员分享，可在线阅读，更多相关《Roland Fantom FA-76 Service Manual 电路图.pdf（43页珍藏版）》请在收音机爱好者资料库上搜索。

1、SERVICE NOTES Issued by RJA Copyright 2001 ROLAND CORPORATION All rights reserved. No part of this publication may be reproduced in any form without the written permission of ROLAND CORPORATION. Printed in Japan (0800) (NB)17058001E0 Sep. 2001FA-76 TABLE OF CONTENTS SPECIFICATIONS.2 LOCATION OF CONT

2、ROLS (TOP).3 LOCATION OF CONTROLS PARTS LIST (TOP).3 LOCATION OF CONTROLS (REAR).4 LOCATION OF CONTROLS PARTS LIST (REAR).4 EXPLODED VIEW PARTS LIST.6 EXPLODED VIEW.6 PARTS LIST.8 KEYBOARD ASSY (SK-976-B) PARTS LIST .14 KEYBOARD ASSY (SK-976-B) DISASSEMBLY.15 KEYBOARD ASSY (SK-976-B) CIRCUIT DIAGRAM

3、.18 IDENTIFYING THE VERSION NUMBER.20 SAVEING USER DATA 8kgf.cm) 17 Sep. 2001FA-76 fig.keyassy3e Hold the tip of the key, put pliers into the bearing side, and spread out. (Refer to Fig.6.) Place a spring on the chassis. Next, place a key (see Fig.7) and press the bearing side. Fig. 7 Pliers Fig. 6

4、Hold this position Spring Sep. 2001FA-76 KEYBOARD ASSY (SK-976-B) CIRCUIT DIAGRAM fig.keyboard C2G#2E3E1 32P LOW 32P MID C4 G#4E5C6 G#6E7G7 12P HI AFT S MM P 78 114 69 114 S MM P 1 1 1819 20 Sep. 2001FA-76 IDENTIFYING THE VERSION NUMBER 1.Power on the main unit while pressing the REALTIME CONTROL 1,

5、 REALTIME CONTROL 3 and REC buttons, and the top page of the Test Mode appears to display the version number of the program. Keep the buttons pressed down until the top page appears. 2.Press the EXIT button to exit Test Mode. *If you want to continue with Test Mode, refer to the “Test Mode” section.

6、 *User data will not be lost in the operation to display the Test Mode top page. *The user data will be maintained until the Test Mode item “18.Factory Rest” is performed. SAVEING USER DATA & RELOADING SAVED DATA *Saving and loading user data requires a 3.5 2DD or 2HD disk formatted for the Fantom.

7、Equipment items 2HD and 2DD floppy disk, one each (DOS-formatted on the Fantom or on a PC) How to Save the User Settings Save the data files storing patches, rhythm sets, multitimbres and performance and system settings on a disk. 1.Insert a disk into the disk drive. 2.Press the MENU button to displ

8、ay the Menu window. 3.Press the CURSOR UP or CURSOR DOWN button to select Disk Utility, then press the 8 (Select) button. 4.Press the 2 (Save) button. The Select Command window is displayed. 5.Press the CURSOR UP or CURSOR DOWN button to select Save Sound File, then press the 8 (Select) button. 6.As

9、sign a name to the file (within eight characters). “SOUND_00” is automatically prefixed to any file name. Press the 5 (Name) button to display the Name window, then use this window to assign a file name. 7.Press the 8 (Execute) button to execute naming. When naming is completed, “Complete!” momentar

10、ily appears. *To cancel the operation, press the EXIT button. Selecting the Save Sound File format enables the patches, rhythm sets, multitimbres and performance settings as well as the system and favorite list settings to be saved on a single disk as one data file. The file name extension “.SVD” is

11、 automatically attached. An attempt to save data under an existing file name causes the “File “*” Already Exists! Over Write OK?” confirmation message to be displayed. To overwrite and save the file, press the 7(OK) button. To cancel saving, press the 8 CANCEL button. An attempt to save data on a di

12、sk that is not formatted on the Fantom causes the “Unformatted Disk” message to be displayed. Format the disk on the Fantom. How to Load the User Settings Load data files (“.SVD” files) stored on a disk in the internal memory. *Files are loaded by overwriting the internal memory. If you have any imp

13、ortant data stored in the internal memory, save it on a disk before loading any data. 1.Insert a disk into the disk drive. 2.Press the MENU button to display the Menu window. 3.Press the CURSOR UP or CURSOR DOWN button to select Disk Utility, then press the 8 (Select) button. 4.Press the CURSOR UP o

14、r COUSOR DOWN button to select a desired file to be loaded, then press the 1 (Load) button. 5.Press the 8 (Execute) button to execute loading. When loading is completed, “Complete!” momentarily appears. *To cancel the operation, press the EXIT button. TEST MODE Equipment items 2HD and 2DD floppy dis

15、k, one each (DOS-formatted on the Fantom or on a PC) Expression Pedal D Beam adjustment device (a square wooden or paper board with 8 cm-long edges) Headphones Analog audio replaying equipment, such as a monitor speaker Wave Expansion Board SR-JV80 Series x1pc Wave Expansion Board SRX Series x2pcs O

16、scilloscope Noise Meter Audio cable x 2pcs, MIDI cable x 1pc Connection Cable PCS-31 x2pcs COAXIAL Cable x1pc OPTICAL Cable x1pc A VM-3100 unit or other mixer with at least six channels, and equipment with coaxial and optical inputs (DS-90, for example) Explanation of the Menu Items The Fantom provi

17、des the following tests: See the respective sections for the details of the tests. 0.Test Mode Top page (Identifying the version number) 1.Shock Test 2.Memory Test 3.Expansion Board Test 4.MIDI Test 5.Sound Test 6.LCD Test 7.Encoder Test 8.A/D Test1 (Bender & Modulation) 9.A/D Test2 (Volume x4) 10.A

18、/D Test3 (After Touch) 11.A/D Test4 (HOLD, CTL1, CTL2) 12.Disk(FDD) Test 13.D-Beam Adjustment 14.D-Beam Check 15.Switch & LED Test 16.Keyboard Test 17.Noise Check 18.Factory Reset 21 Sep. 2001FA-76 Test setup: *Before entering Test Mode, Wave Expansion Boards (one SR-JV80 Series board and two SRX Se

19、ries boards) must be inserted into all the slots. *User data will be maintained until the operation under “18.Factory Reset” is performed even after entering Test Mode. save the data on a disk or transmit it to an external MIDI device and save beforehand Only when you are to perform a Factory Reset

20、(See “Saving and Loading User Data). Connect the Fantom to the mixer as follows. fig.t00 How to enter Test Mode Power on the unit while pressing the REALTIME CONTROL 1, REALTIME CONTROL 3 and REC buttons, and the top page of the Test Mode appears. Press and hold these buttons down until the top page

21、 is displayed. Moving through test items Press the 8 button on the top page to go test item 1 Shock Test. For test items 2 - 5 and 7 - 15, completion of each test automatically invokes the next test item. Proceed with Test Mode by starting with the top page until “1.Shock Test” is completed, and a n

22、umber of memory check operations are performed automatically. If each memory check has succeeded, proceed to “4.MIDI Test.” Pressing the SHIFT and 8/SHIFT and 1 buttons in conjunction forces the program to jump to the previous or following test item even if the current test is not completed. Press t

23、he MENU button in Test Mode to return to the top page. (Press the Shift and MENU buttons to return to the top page from “15. Switch & LED Test.”) *See the descriptions of the test items in the following sections for details of the screen displays. Jumping to a test item On the top page, press the CU

24、RSOR UP / CURSOR DOWN button to move the cursor to any desired item, then press the JUMP button to directly select that test item. How to exit Test Mode Return to the top page and press the EXIT button. Details of test items 0. Test Mode Top page (Identifying the version number) 1.Check the version

25、number of the Program ROM. 2.To update to the latest version number, perform updating. *For the updating procedure, see “How to Update System.” fig.t01 3.Press the 8 button and proceed with the next test. 1. Shock Test 1.The DEMO Play is played back. Check for any scratching noise on the Master Volu

26、me. 2.Press the PLAY/STOP button to stop playback and press the PLAY/ STOP button again to start it. 3.Check to see if audio output is muted while the INC button is pressed down. fig.t02 4.Press the 8 button and proceed with the next test. VM-3100 etc. CH5 OUTPUT B-L OPTICAL OUT OPTICAL IN COAXIAL O

27、UT COAXIAL IN CH6CH1 CH2CH3 CH4 OUTPUT B-R OUTPUT A-L OUTPUT A-R MIDI IN MIDI OUT FANTOM PCS-31 22 Sep. 2001FA-76 2. Memory Test 1.The flash memory, SDRAM, EEPROM, WAVE ROM, XV and DSP RAM are automatically checked. 2.If “OK” is returned for all these tests, then the program automatically proceeds t

28、o the next test item. fig.t03 *If “OK” is not displayed, check the following for the relevant test items. FLASH : MAIN BOARD IC5 SDRAM : MAIN BOARD IC4, IC7 EEPROM : MAIN BOARD IC12 WAVE ROM : MAIN BOARD IC42, IC44, IC45, IC46, IC47, IC48, IC49, IC51, IC54 XV : MAIN BOARD IC31 DSP RAM : MAIN BOARD I

29、C36, IC37, IC38, IC39, IC40 3. Expansion Board Test 1.Check the slots for Wave Expansion Boards. *Before starting this test, insert Wave Expansion Boards (one SR-JV80 Series board and two SRX Series boards) into all the slots. If you need to insert a Wave Expansion Board now, turn off the power befo

30、re doing so and then return to Test Mode. If a board is inserted with the power on, it cannot be read correctly. Moreover, it may damage the board. 2.Each slot is automatically checked. 3.If the tests on all the slots are completed with “OK” displayed, the program automatically proceeds to the next

31、test item. fig.t04 *If “OK” is not displayed, check the following as specified by slot. A : MAIN BOARD IC30, CN7 B : MAIN BOARD IC42, IC44, IC45, IC46, IC47, IC49, IC53, CN10 C : MAIN BOARD IC42, IC44, IC45, IC46, IC47, IC49, IC50, CN11 4. MIDI Test 1.Check MIDI connection. 2.Connect MIDI IN and MID

32、I OUT with a MIDI cable. 3.Confirm that “CONNECT : OK” is displayed. 4.Remove the MIDI cable from MIDI IN and MIDI OUT. Confirm that “DISCONNECT : OK” is displayed. 5.If “OK” is displayed each time, the program automatically proceeds to the next test item. fig.t05 *If “OK” is not displayed, check MA

33、IN BOARD JK1, IC21 and IC22. 5. Sound Test (OUT1, 2 = Balance / OUT3, 4 = Unbalance / DIGITALCOAXIAL, OPTICAL) *This test item assumes that a VM-3100 is connected. *MIDI is used to control the VM-3100 to its optimal settings for each check item. 1.Entering Sound Test displays the following screen. f

34、ig.t06 2.Press the 8 button. 3.Check output of OUTPUT A-L (Hot) and OUTPUT A-L (Cold). The Fantom outputs 440 Hz sine waves to OUTPUT A-L (Hot) and OUTPUT A-L (Cold). Check the waveform with an oscilloscope, then press the 8 button to proceed to the next step. 4.Check output of OUTPUT A-R (Hot) and

35、OUTPUT A-R (Cold). The Fantom outputs 440 Hz sine waves to OUTPUT A-R (Hot) and OUTPUT A-R (Cold). Check the waveform with an oscilloscope, then press the 8 button to proceed to the next step. 23 Sep. 2001FA-76 5.Check output of OUTPUT B-L and OUTPUT B-R. The Fantom outputs 440 Hz saw-tooth waves to

36、 the OUTPUT B-L side and 440 Hz triangular waves to the OUTPUT B-R side. Check the waveform with an oscilloscope, then press the 8 button to proceed to the next step. 6.Check output of DIGITAL OUT COAXIAL (L/R). The Fantom outputs 440 Hz sine waves to the DIGITAL OUT COAXIAL L side and 440 Hz square

37、 waves to the R side. Check the waveform with an oscilloscope, then press the 8 button to proceed to the next step. 7.Check output of DIGITAL OUT OPTICAL (L/R). The Fantom outputs 440 Hz sine waves to the DIGITAL OUT OPTICAL L side and 440 Hz square waves to the R side. Check the waveform with an os

38、cilloscope, then press the 8 button to proceed to the next test item. fig.t07 *If there are any abnormalities with output, check the following as specified by section. OUTPUT A(L) : MAIN BOARD IC57, IC59, IC61, IC63, Q18, Q19, JK3 PANEL A IC101 OUTPUT A(R) : MAIN BOARD IC57, IC59, IC61, IC63, Q20, Q

39、21, JK4 PANEL A IC101 OUTPUT B(L) : MAIN BOARD IC60, IC62, IC65, Q22, JK5 OUTPUT B(R) : MAIN BOARD IC60, IC62, IC65, Q23, JK6 COAXIAL : IC68, IC69, T1, JK7 OPTICAL : IC68, CN13 6. LCD Test 1.Check the LCD. The startup screen is shown below. fig.t08 2.Press the 8 button. 3.The screen shows patterns i

40、n four contrasts. Turn the contrast knob to obtain the optimal contrast. 4.Confirm that pressing the INC button turns off the backlight of the LCD and pressing it once again turns it on. fig.t09 5.Press the 8 button. 6.In the Display All Dots mode, check for any missing dots and uneven density. fig.

41、t10 7.Press the 8 button. 8.In the Display No Dots mode, check for permanently displayed dots and conspicuous unwanted elements. fig.t11 9.Press the 8 button to proceed to the next test item. *If any LCD failure occurs, check the following. MAIN BOARD IC13, L36, L37, L38, L39, L40, L41, L42, L43, CN

42、2 LCD-RELAY BOARD CN5, CN6 24 Sep. 2001FA-76 7. Encoder Test 1.Check the encoder. 2.Rotate the encoder clockwise and counterclockwise, one turn each. “OK” is displayed on the LCD screen if a value of +24 is obtained when the encoder is rotated clockwise and a value of -24 when rotated counterclockwi

43、se, accompanied by a confirmation sound. fig.t12 3.If “OK” is displayed for both rotations, the program automatically proceeds to the next test item. *If “OK” is not displayed, check MAIN BOARD IC41. 8. A/D Test 1 (Bender & Modulation) 1.Check the bender and modulation actions. *Confirm that the ben

44、der is not tilted before entering this screen. (This is required to enable the A/D value at the time of screen entry to be read as the median point voltage.) 2.Tilt the Bend lever from side to side as far as it will go. 3.“OK” is displayed on the screen and a confirmation sound is output if: Tilting

45、 the lever to the left gives a value of -128. Tilting the lever to the right gives a value of +127. Replacing the lever gives a value of 0. 4.Tilt the Bend lever all the way over to the modulation side as far as it will go, then release it. 5.“OK” is displayed on the screen and a confirmation sound

46、is output if tilting the lever to the modulation side gives a value of 127 and replacing the lever gives a value of 0. 6.If “OK” is displayed for all these items, the program automatically proceeds to the next test item. fig.t13 *If “OK” is not displayed, check MAIN BOARD IC73, BENDER UNIT should be

47、 checked. 9. A/D Test 2 (VOLUME x4) 1.Check volume of REALTIME CONTROLs 1 - 4 knobs. 2.Move the four REALTIME CONTROL VR knobs all the way from side to side sequentially from 1 to 4. 3.“OK” is displayed if a value of 0 is obtained at the leftmost position and 127 at the rightmost position, then 0 wh

48、en moved to the leftmost position again each time a knob is moved. 4.Operate the knobs in the correct order, or “OK” is not displayed. A sweep sound is output while a knob is operated and a confirmation sound is output when the right value is obtained. 5.When “OK” is displayed for all the knob positions checked, the program automatically proceeds to the next test item. fig.t14 *If “OK” is not displayed, check the following. MAIN BOARD IC72 PANEL A BOARD VR102, VR103, VR104, VR105, IC103 10. A/D Test3 (After Touch) 1.Check After