Roland VS-880EX Digital Studio Service Manual 电路图.pdf
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1、Sep, 1998VS-880EX TABLE OF CONTENTSPage SPECIFICATIONS 12 LOCATION OF CONTROLS 3 EXPLODED VIEW4 BLOCK DIAGRAM 5 PARTS LIST67 IDENTIFYING THE VERSION NUMBER8 TEST MODE 89 VS-880EX SYSTEM SOFTWARE UPDATA USING THE SMF9 SAVING SYSTEM PARAMETERS9 MAIN BOARD REPLACING PROCEDURE 10 IC DATA11 CIRCUIT DIAGR
2、AM AUX L, R), respectively. Change the analog signals to INPUT jacks 5 (or 6). The input signal 5 (or 6) is sent to outputs 1 5 and 6 are also sent to DIGITAL OUT jack in the time sharing format. In this test, 5 parameters can be set for specific test purposes. Parameter setting shown at the left of
3、 LCD can be changed by pressing one of buttons, LOC1, LOC2, LOC3, LOC4 and SCENE whenever they are lighting. (Leftmost lighting LED correspond to the first parameter.) The selected parameter setting is displayed on the LCD following the parameter name. 1. R-DAC mode (COD): OFF (MAS), HI (MT1), STD (
4、MT2), LG5 (LIV), LNG (-) The R-DAC processed sound is output to MASTER OUTs and DIGITAL OUT. 2. INPUT select (SEL): In 1 2 3 4, In 5 6 Change the analog signals to INPUT jacks 1-4. These signals are sent to outputs 1-4 (MASTER OUT L, R; AUX L, R), respectively. Feed the analog signals to INPUT jacks
5、 5 (or 6). The input signal 5 (or 6) is sent to outputs 1 AUX L, R; and DIGITAL OUT. The following 4 parameters can be set. 1. Sine wave frequency: 100Hz, 500Hz, 1kHz, 2kHz, 5kHz, 10kHz Select one of the frequencies (by pressing LOC1). 2. Sine wave level (LEV): 0Fh-7Fh Adjust the output level of the
6、 sine wave signal (by pressing LOC2). TEST MODE Sep, 1998VS-880EX 9 3. Sine wave mute (MUT): OFF, ON Set to ON when muting the output (LOC3). 4. FS(_ no display): 48kHz, 44.1kHz, 32kHz (on large window) Select desired sampling frequency for sine wave output (LOC4). E:Digital I/O 1:Digital InConnect
7、DIGITAL INPUT jack to digital output of a CD player and play song. When the test is successful, the display shows OK!; status (ON or OFF) of emphasis (EMP) and copy flag (CPY); and category (xxH). Otherwise, shows Err. DIGITAL INPUT signal is sent to MASTER L, R AUX L, R; and also to DIGITAL OUT wit
8、h the same flags (FS, CPY, EMP) as input. The following two parameters can be set. 1. R-DAC mode (COD): OFF, MT1, MT2, LV1 The R-DAC processed sound is output to MASTER OUTs and DIGITAL OUT. 2. INPUT SELECT SEL Cx Op When the DIGITAL INPUTs are changed, the display will show the selected input at th
9、e upper-right corner. 2:Digital OutSends signals coming from INPUTs A 1 and 2 to ANALOG OUTPUTs (MASTER L, R; AUX L, R) and DIGITAL OUT. The following 4 parameters can be set. 1. EMPHASIS (EMP): ON, OFF Set the emphasis flag of digital output to ON or OFF. 2. COPY (CPY): ON, OFF Set the copy flag of
10、 digital output to ON or OFF. 3. MUTE (MUT): ON, OFF Select whether MASTER OUTs, AUX OUTs and DIGITAL OUT are to be blocked. 4. FS (_): 48kHz, 44.1kHz, 32kHz Set the sampling rate of digital and analog outputs. F:Device Check 1:SCSIConnect a disk drive unit to SCSI connector. (external, internal)The
11、 drive unit must have been formatted on the VS- 880EX. This test first initializes SCSI chip and writes test data into and reads from the drive unit. The display shows OK! when test is successful. Otherwise shows Err. 2:IDEInstall a disk drive unit into front panel expansion slot (if not installed).
12、 The drive unit must also be formatted on the VS-880EX. Test data is written into and read back from the drive unit. The display shows OK! when test is successful. Otherwise shows Err. 3:MIDI IN/OUTFeed the MIDI signal to MIDI IN. The display shows the input data. Verify that the input signal is out
13、put to MIDI OUT as it is. 4:MIDI IN/THRUFeed the MIDI signal to MIDI IN. The display shows the input data. Verify that the input signal is output to MIDI OUT as it is (hardware thru, although no difference from 3. MIDI IN/OUT is recognizable). 5:Rsp2 Check1Tests the operation of RSP2 (IC25 on MAIN B
14、OARD). 6:Rsp2 Check2Tests the operation of RSP2 with different values from that of Check1. The display shows OK! when the test is successful. Otherwise, it shows Err. G:EFFECT Check 1:EFFECT Chk1Test the operation of effect control CPU (IC700). If the connection is correct, the display shows OK!. Ot
15、herwise it shows Err. 2:EFFECT Chk2Test the operation of effect circuit. If the connection is correct, the display shows OK!. Otherwise it shows Err. H:CD-R Check Test the operation of CD-R drive unit. (This test is FACTRY only.) This TEST is FACTRY only. VS-880EX Sep, 1998 The latest system softwar
16、e of the VS-880EX is stored to the floppy disks named VS-880EX System Ver.1.xx SMF as the standard MIDI file format (SMF format). Check the following SMFs included to the floppy disks. Update VS-880EX system software by following the procedure described below. 1. Connect a MIDI cable between two con
17、nectors; MIDI OUT connector of the MIDI Sequencer that can play back SMF data and MIDI IN connector of VS-880EX. It is convenient to use the MIDI Sequencer such as an SB- 55 sound brush that can play back some SMFs continuously. 2. While holding down SH EDIT (SEL) and STATUS on the track 7, turn on
18、the VS-880EXs power. 3. A message SYSTEM Update? will be displayed. Press YES. 4. Check a message Waiting MIDI-EX is displayed, play back all SMF data from 880EX_01. MID to 880EX_16. MID in order. 5. After finish playing back all SMFs, a message Update SysPRG? will be displayed. Press YES. 6. A mess
19、age Please Reboot OK will be displayed. The system software of your VS-880EX was already updated. Restart the VS-880EX. Before repairing the unit and exchanging the board, save the user system parameters and Effects User Patch to and external memory device, e.g. a sequencer, and load back the save d
20、ata to the VS-880EX that the repairing has been done. Send the parameters through MIDI OUT Pressing two keys CH 7 and Status 7 with left hand, and SYSTEM button with right hand thumb, turn on power(SYSTEM key may be pressed after turning on power within 2 seconds). The display shows Send SysPrmMIDI?
21、. Press YES button to start. The data in the system parameters are sent out in MIDI exclusive format. Restore the system parameters To receive the system parameters & write it to Flash, refer to the chapter VS- 880EX SYSTEM SOFTWARE UPDATE USING THE SMF in this service note. Depending on the receivi
22、ng method, the displays will look different on the LCD. For example, when -P- and prompt Update SysPRM/ are displayed, press YES button to write only the system parameters into the flash memory. VS-880EX SYSTEM SOFTWARE UPDATE USING THE SMF SAVING SYTEM PARAMETERS VS-880EX System Ver.1.xx SMF disk 1
23、 880EX_01. MID 880EX_02. MID 880EX_03. MID 880EX_04. MID VS-880EX System Ver. 1.xx SMF disk 2 880EX_05. MID 880EX_06. MID 880EX_07. MID 880EX_08. MID VS-880EX System Ver. 1.xx SMF disk 3 880EX_09. MID 880EX_10. MID 880EX_11. MID 880EX_12. MID VS-880EX System Ver. 1.xx SMF disk 4 880EX_13. MID 880EX_
24、14. MID 880EX_15. MID 880EX_16. MID 10 One IDE-type hard disk (2.5 inch size) can be installed inside the VS- 880EX, and up to 7 disk drives can be connected to the SCSI connector. G Checking the performance of the optional IDE drive using the demonstration song. The VS-880EX demonstration song also
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