Roland VS-840, 840S Digital Studio Service Manual 电路图.pdf
《Roland VS-840, 840S Digital Studio Service Manual 电路图.pdf》由会员分享,可在线阅读,更多相关《Roland VS-840, 840S Digital Studio Service Manual 电路图.pdf(19页珍藏版)》请在收音机爱好者资料库上搜索。
1、Feb, 1998VS-840/840S TABLE OF CONTENTSPage SPECIFICATIONS1 LOCATION OF CONTROLS 2 EXPLODED VIEW3 BLOCK DIAGRAM 4 PARTS LIST5, 6 IDENTIFYING THE VERSION NUMBER7 TEST MODE 79 VS-840 SYSTEM SOFTWARE UPDATE USING THE SMF 9 SAVING USER AREA 9 CIRCUIT DIAGRAM CH and MASTER faders to 0 dB. Input the signal
2、 to INPUT sockets 1, 2, 3 and 4 one by one and observe the signal at the corresponding OUT socket on an oscilloscope. Verify that: Signal at MASTER OUT L and R are identical to that on INPUT 3 and 4, respectively. Signal at MON/AUX A and B are identical to that on INPUT 1 and 2, respectively. Repeat
3、 the above steps but set the generator frequency at 500 Hz. Note: INPUT 1 and GUITAR IN (high Z) are internally connected in parallel with INPUT 1 given priority over GUITAR IN. INPUT 3 and 4 are internally connected in parallel with pin socket with the standard socket given priority over pin socket
4、. . Check the following with MUTE OFF/PHONES (AUX). INPUT SENS: While monitoring output, turn INPUT SENS knob fully CW and CCW and verify smooth peak level change. Verify that AUX signal is sent to PHONES output. Turning PHONES knob CW and CCW, verify smooth level change. PEAK LED Check that the LED
5、 turns on at around the middle of INPUT SENS travel range. Press REC button. MUTE OFF/PHONES (MST) Insert headphones and verify that the master signal is sent to the PHONES out. . Check Residual noise Set the product: INPUT SENS: +4dBm CH SELECT: INPUT (orange) INPUT CH: Open Connect an appropriate
6、noise metering instrument e.g. noise meter to the corresponding OUT: MASTER R and L, MONI/AUX A and B. With the meter connected to one of the OUTs specified above, verify that meter readings are less than -87 dBm (IHF-A). Repeat noise reading for the OUT: MASTER R and L, MONI/AUX A and B. Press REC
7、button. MUTE ON/PHONES (MST) Verify that the signal indicated on the LCD is muted. IExiting the test program Simply turn off VS-840. Turn on VS-840. It should start with the opening screen and necessary startup information. IChecking in operation mode Checking ZIP drive Insert the Demo ZIP DISK ( P/
8、No. 71017756 ) into VS-840 ZIP drive ,and play the Demo Song. Checking VARI PITCH Press SHIFT and VARI PITCH buttons. Turning TIM/VALUE dial and verify pitch change. Checking ZIP DISK injection Stop the test disk. Press the ZIP drive inject button and remove the ZIP DISK. This completes the tests in
9、 this section. Prepare a Blank ZIP DISK ( P/No. 01343023 ) formatted by VS-840. Before troubleshooting, back up user data onto the ZIP DISK, and reload the saved data afterward by following the procedure below. ISaving user area data backup file 1. Holding down PLAY, REC and TRK3 buttons, turn on VS
10、-840. 2. The LCD will display the message User FILE Wr? Insert the ZIP DISK into the drive and then press YES button. The backup file will be created on the disk. Remove the disk. ILoading user area data backup file 1. After completing troubleshooting (e.g. replacement of a PCB), insert the ZIP DISK
11、 and then turn on VS-840. 2. The LCD will display the message User Area Load?. Press YES button to load the backup data. VS-840/840S Mar, 1998 SAVING USER DATA & RELOADING SAVED DATA 9 IDeleting user area data backup file 1. Insert the ZIP DISK containing the backup file into the drive. Holding down
12、 PLAY, REC and TRK4, turn on VS-840. 2. The LCD will display the message User FILE Del?. To delete the file, press YES button. * CAUTION! Do not turn off the VS-840 during its system software updating. If not, the program in the flash memory is destroyed. In this case, perform the compelling version
13、-up procedure in order to recover it. IThe VS-840 system software is supplied in the standard MIDI file (SMF) data format. (P/No. 17048692) Each system disk contains the following SMF data. Load these data to VS-840, starting with Disk 1 (VS-840-1.MID). VS-840 System Ver.*.* SMF Disk 1VS-840 System
14、Ver.*.* SMF Disk 2 VS-840-1.MIDVS-840-5.MID VS-840-2.MIDVS-840-6.MID VS-840-3.MIDVS-840-7.MID VS-840-4.MIDVS-840-8.MID Update the VS-840 by following the procedure described below. 1. Connect the MIDI OUT of a MIDI sequencer capable of playing back SMF data in sequence (e.g. SB-55) to MIDI IN of VS-
15、840, through a MIDI cable. 2. Holding MODE, INPUT and ENTER buttons, turn on VS-840. 3. The message Receive MID-EX? will be displayed. Press YES button. 4. Verify that Now Waiting . is displayed. Playback all SMFs in the order of number. 5. The message Version Up? will appear. Press YES button. 6. T
16、he message User Area Update? will appear. Press YES button. 7. When the message END! Please POWER OFF/ON appears. Turn off and then on VS-840. This completes updating. IInitialization, User area, VS-840 system software update using the ZIP DISK. (P/No. 17048691) VS-840 can also be updated by using t
17、he System Data ZIP DISK. When using the ZIP DISK, VS-840 can be upgraded either of the following two ways. 1. Using standard version-up procedure This procedure keeps the user data unchanged (no initialization). 2. To initialize the user data or loading the factory presets, the compelling version-up
18、 procedure must be followed . Standard version-up procedure 1. Insert the latest System Data ZIP DISK into VS-840 ZIP drive. Turn on VS-840. 2. The message Version up? appears. Press YES button. 3. When the message Are you sure? appears, press YES button. The program displays SYSTEM WRITE, indicatin
19、g it starts version-up sequence. 4. Upon END! Please POWER OFF/ON message, turn off and then on VS-840. This completes updating. . Compelling version up 1. Holding down TR1, TR2, TR3, TR4 and RIGHT buttons, turn on VS- 840. 2. The message Clear Flash? will appear. Press YES button. 3. The message Ar
20、e you sure? will appear. Press YES button. 4. The program displays SYSTEM WRITE, indicating that it is clearing flash memory. 5. Upon END! Please POWER OFF/ON message, turn off VS-840. 6. Insert the System Data ZIP DISK into the drive. Holding down PLAY, REC and ENTER buttons, turn on VS-840. 7. The
21、 program displays BAD FLASH! and then SYSTEM WRITE, indicating that it is starting compelling version-up sequence. 8. Upon END! Please RESET! message, turn off and then on VS- 840. This completes compelling updating. ITo recover the unit after Error Message has been displayed When error message Dont
22、 match CPU or Cant Version Up has been displayed and locks up from the power off during Eject or Shut down, you need to re-load the System program. Please refer to the following procedure. 1. Insert the System Data ZIP DISK into the VS-840 drive and then turn on the VS-840. 2. The display may show B
23、AD FLASH! and then SYSTEM WRITE. *. The compelling version-up starts. 3. After END! Please, RESET! is displayed, turn the power off and on again. 4. Complete. VS-840/840S Mar, 1998 VS-840 SYSTEM SOFTWARE UPDATE 12345678910111213141516171819202122232425262728 A B C D E F G H I J K L M N O P Q R S T U
24、 10 CIRCUIT DIAGRAM & BOARD MAIN BOARD ASSY (70902056) component side Mar, 1998VS-840/840S 12345678910111213141516171819202122232425262728 A B C D E F G H I J K L M N O P Q R S T U 11 Mar, 1998VS-840/840S MAIN BOARD ASSY (70902056) solder side 12345678910111213141516171819202122232425262728 A B C D
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Roland VS-840 840S Digital Studio Service Manual 电路图 VS 840
收音机爱好者资料库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。
链接地址:http://www.radiofans.cn/p-217745.html



Marshall-9100-62-02-Schematic电路原理图.pdf


