Related Manuals for Alesis DG8
Summary of Contents for Alesis DG8
- Page 1 DG8 Master Keyboard SERVICE MANUAL V1.00a 12/15/99 Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 2 As the owner of the copyright to the Manual, Alesis does not give you the right to copy the Manual, and you agree not to copy the Manual without the written authorization of Alesis. Alesis has no obligation to provide to you any correction of, or supplement to, the Manual, or any new or superseding version thereof.
- Page 3 ALL REPAIRS DONE BY ANY ENTITY OTHER THAN AN AUTHORIZED ALESIS SERVICE CENTER SHALL BE SOLELY THE RESPONSIBILITY OF THAT ENTITY, AND ALESIS SHALL HAVE NO LIABILITY TO THAT ENTITY OR TO ANY OTHER PARTY FOR ANY REPAIRS BY THAT ENTITY.
- Page 4 Replace only with the same type or equivalent Udskiftning må kun ske med batteri af samme fabrikat og type recommended by the equipment manufacturer. type. Levér det brugte batteri tilbage till leverandøren Type 5x20mm F 10A 250V. (F = standard blow) Alesis DG8 Service Manual V1.00a 01/19/07...
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Page 5: Safety Suggestions
The AC power supply plug or cord is damaged, d. The product shows an inappropriate change in performance or does not operate normally, or e. The enclosure of the product has been damaged. Alesis DG8 Service Manual V1.00a 01/19/07... -
Page 6: General Troubleshooting
(burnt, or loose components are a dead giveaway). Π Self-Test - Alesis products that utilize microprocessor control contain built in test software which exercises many of the units' primary circuit functions. Self-test should always be done following any repair to ensure basic functionality. Π... - Page 7 G8 ASSEMBLY INSTRUCTIONS: Revision B. July 23, 1999 Alesis DG8 Service Manual V1.00a 01/19/07...
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Page 8: End Cap Assembly
Picture 1 2. Attach Key-Filler (left 9-15-0139 and right 9-15-0140) using two screws P/N 5-00- 1013 (# 8x1/2” PPB Hilo), refer to picture 2. Alesis DG8 Service Manual V1.00a 01/19/07... - Page 9 TOP EXTRUSION ASSEMBLY 1. Place two strips of aluminum tape P/N 7-12-0035 (left) 7-12-0036 (right) to bottom side of Top Extrusion, refer to Picture3. Note longer strip goes on the left and shorter on Right. Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 10 5. Install rubber keypads as shown in Picture 4. A) 9-30-0012 Keypad Harpsi/Clav B) 9-30-0011 Keypad Elec. Piano-2 C) 9-30-0010 Keypad Piano2 D) 9-30-0008 Keypad Piano1 E) 9-30-0009 Keypad Up/Down F) 9-30-0014 Keypad Tune Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 11 8. Install Keypad PCB Assembly (9-79-1347) onto Top Extrusion uses 10 screws P/N 5-00-0138 @ 6 in/lb. torque. Orient header towards LCD display bezel as shown in Picture 5. Make sure alignment pins are centered in holes in PCB. Picture 5 Alesis DG8 Service Manual V1.00a 01/19/07...
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Page 12: Top Panel Assembly
3. Place Front Baffle P/N 9-07-0003, against vertical leg of Top Extrusion and align screw holes. Orient vinyl black side toward Top Extrusion, use 8 screws P/N 5-00- 0814 @ 15 in/LB torque. Use a 6” long #2 Phillips bit. Alesis DG8 Service Manual V1.00a 01/19/07... - Page 13 Picture 8B 7. Install Left End Panel (has an “L” routed into the side) using (2) screws P/N 5-00- 0814 @ 25 in/LB torque through Front Baffle and (1) through Rear Extrusion closest to Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 14 11. Install rubber speaker grill grommet (8) P/N 9-15-0187 to Top Panel, insert so it is flush with Top Panel speaker grill recess. Make sure grommet is the correct kind. Refer to Picture 10A and 10B. Picture 10A No line in the middle. Picture 10B No coarse finish. Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 15 15. Apply hot glue to Brace and place between Tweeter hole and Mounting ring right left as shown below. Picture 12A Picture 12B 16. Install cable guides on Front Baffle interior under the slots used to route cabling, and line slots with foam strips. Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 16 Left End Panel as shown in Picture 15B. Push corner Grommet to facilitate installation. 23. Attach Power Supply to mounting tab using 2 (# 6-32 x ¼” Undercut FH) screws to Rear Extrusion using 1 (8-32 x ½ PPB) screw. Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 17 • Cable 8-pin 4-19-0805 (20in) from EQ/Slider to Interface J9. Route J4 (Amp to Amp cable) along Rear Extrusion. Refer to Picture 16B Tie all cables using Cable Clamp (Folding Tab) 12 total, P/N 9-03-0069. 30. Turn Top Assembly over. Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 18 2 screws P/N 5-00-0006 on Main PCB’s PCMCIA card. 35. Reinstall cliff nuts on jacks at Rear Extrusion. Tighten appropriately. 36. Plug Interface cables to Main PCB as follows: NOTE ORIENTATION OF PIN #1 INTERFACE MAIN Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 19 Insulation Fiberglass 100x510 (2) P/N 7-07-0037next to Rear Extrusion and Front Baffle. Insulation Fiberglass 165x510, P/N 7-07-0036 across Bottom Panel. Apply as shown Picture 16B. Picture16A Picture 16B 38. Place assembly in Burn-In fixture, attaches cables, and set timer for 30 seconds. Alesis DG8 Service Manual V1.00a 01/19/07...
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Page 20: Bottom Panel Assembly
4. Attach Bottom Panel P/N 9-05-0814 to keybed; use 11 screws P/N 5-00-1035 in locations where keybed bracket holes align with Bottom Panel inserts. Use 10 in/LB torque. 4.5 Check Front Extrusion for defects. Alesis DG8 Service Manual V1.00a 01/19/07... - Page 21 9. Place tested Top Assembly on Rear of Bottom Assembly as shown in Picture 17B. 10. Connect Keyboard cables to Interface PCB, Upper Keys go to J10 and Lower Keys to J14. 11. Plug headphone cable into headphone PCB as shown in Picture 18B Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 22 17. Proceed to test for Hi-Pot and audio. 18. Apply barcode sticker to Back Extrusion. 19. Apply QC sticker P/N 7-53-0018 to Access Panel. 20. Apply shock warning sticker P/N 7-53-0100 to Access Panel. Alesis DG8 Service Manual V1.00a 01/19/07...
- Page 23 28. Lift (with help from another person) unit and place in Gift Box, add Accessory Box close. 29. Lift loaded Gift Box and place in Shipping Box. Attach Barcode label to outside. 30. Close Shipping Box using automatic strapping machine. End of Procedure Alesis DG8 Service Manual V1.00a 01/19/07...
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