Boss DD-7 Digital Delay Especificaciones

SERVICE NOTESIssued by RJACopyright © 2008 Roland CorporationAll rights reserved. No part of this publication may be reproduced in any form without th

10May. 2008 DD-7Test Items1. VR Check (E.LEVEL) (p. 10)2. VR Check (F.BACK) (p. 10)3. VR Check (D.TIME) (p. 11)4. VR Check (MODE) (p. 12)5. DA Check (

11May. 2008 DD-72. With the F.BACK control turned down counterclockwise all the way, turn it clockwise to the 9 o’clock position.Verify that the CHECK

12May. 2008 DD-75. Turn the D.TIME control clockwise all the way. Verify that while the control is being turned all the way clockwise from the 12 o’cl

13May. 2008 DD-76. Adjust the MODE control to the 200 ms position.Verify that waveform output stops.The CHECK LED goes dark.fig.DD-7-wave-2.eps_757. A

14May. 2008 DD-75. Depress the toe of the EV-5 pedal all the way.Verify that the CHECK LED is lighted up red.fig.DD-7-wave-1.eps_756. Unplug the EV-5

15May. 2008 DD-73. Insert the plug into the INPUT A jack.Verify that the CHECK LED lights up orange.fig.DD-7-wave-1.eps_758. DSP Through Check (OUTPUT

16May. 2008 DD-73. Insert the plug into the OUTPUT B jack.Verify that the CHECK LED lights up orange.fig.DD-7-wave-7.eps_754. Adjust the MODE knob to

17May. 2008 DD-7Circuit Board (Main Board)fig.b-main.eps

18May. 2008 DD-7Circuit Diagram (Main Board: Analog)fig.d-main-analog.eps@LBCKAVCCIN_REFVMCKA+3.3LED_CHK_GRNAGNDAGNDA+3.3DA_A_MUTEAGNDDGNDAGNDSD_ADIN_

19May. 2008 DD-7fig.d-main-analog.eps@RDGNDAGNDDGNDAVREFAGNDAGNDAVCCAVREFD+1.5DGNDOUT_B_DETAVREFRST_DCDCFB_1.5AGNDAGNDAVCCAVREFOUT_A_DETD+3.3DGNDAVREF

2May. 2008 DD-7Cautionary NotesBefore beginning the procedure, please read through this document. The matters described may differ according to the mo

20May. 2008 DD-7Circuit Diagram (Main Board: Digital)fig.d-main-digital.eps@LBYPASS_A_MUTED+3.3DGNDSCLWP_PROGESC+3.3DGNDDGNDDGNDSDADGNDD+3.3RESETPVCCW

21May. 2008 DD-7fig.d-main-digital.eps@RS_ED(2)LED_CHK_REDESC+3.3S_ED(6)S_ED(6)S_ED(7)DGNDDGNDS_ED(7)S_ED(5)S_EA(11)D+3.3S_EA(13)S_ED(4)S_ED(3)CODEC_P

22May. 2008 DD-7

23May. 2008 DD-7

MEMOMay. 2008 DD-7

3May. 2008 DD-7Main SpecificationsDD-7: Digital DelayNominal Input Level-20 dBuInput Impedance1 MΩNominal Output Level- 20 dBuOutput Impedance1 kΩReco

4May. 2008 DD-7Location of Controlsfig.panel.epsLocation of Controls Parts ListNo. Part Code Part Name Description Q’ty1 75E593C0R0 CASE 12 G2537516R0

5May. 2008 DD-7Exploded Viewfig.bunkai.epsExploded View Parts List1110bbaa21219d83c7654No. Part Code Part Name Description Q’ty1 13129710R0 SWITCH(PUS

6May. 2008 DD-7Parts Listfig.-part1-e.epsSAFETY PRECAUTIONS:The parts marked have safety-related characteristics. Use only listed parts for replaceme

7May. 2008 DD-7SCREWSH5039158R0 WASHER M9X14X0.5T NI 540125101 THUMB SCREW M3X10 FE ZC 140125134 NYLON WASHER 3X6X0.5 222137709R0 WASHER 9.6X14X1.0 1#

8May. 2008 DD-7Verifying the Version Number1. Connect an AC adaptor.2. Turn down all controls all the way counterclockwise.3. Holding down the foot pe

9May. 2008 DD-7Test ModeItems Required• Oscillator x 2• Oscilloscope x 1• Noise meter x 2• AC adaptor (PSA series device or 9 V DC power source) x 1•