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DG8 Master Keyboard

SERVICE MANUAL

V1.00a

12/15/99

Alesis DG8 Service Manual V1.00a

i

01/19/07

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Summary of Contents for DG8

Page 1: ...www alesis com DG8 Master Keyboard SERVICE MANUAL V1 00a 12 15 99 Alesis DG8 Service Manual V1 00a i 01 19 07...

Page 2: ...ce to the Manual shall be solely your responsibility and Alesis shall have no liability for any such repairs or service work All such service or repairs are performed at the sole risk of the person pe...

Page 3: ...ELY 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 CAUTION Danger of explosion if battery is incorrectly repla...

Page 4: ...skiftning m kun ske med batteri af samme fabrikat og type Lev r det brugte batteri tilbage till leverand ren Caution Danger of fire or electrocution if fuse is incorrectly replaced Replace only with t...

Page 5: ...e ventilation Improperly ventilating the product may cause overheating which may damage the product 8 Mounting Do not place this product on an unstable cart stand or table The product may fall causing...

Page 6: ...l intermittent failures such as loose cables or poorly soldered headers Remember to check power supply cables as well Flexing the PC Board Poor solder joints and broken traces can often be found by pr...

Page 7: ...G8 ASSEMBLY INSTRUCTIONS Revision B July 23 1999 Alesis DG8 Service Manual V1 00a 7 01 19 07...

Page 8: ...9 34 0009 for left and apply to metal bracket 5 07 0008 for right and 5 07 0009 for left side opposite of the screw tabs centering the punched holes in the gasket with those in the bracket Picture 1...

Page 9: ...13 10in lb torque Make sure alignment pins enter holes in bracket near mounting holes 4 Wrap assemblies in sheet foam and stage at final assembly Picture 2 TOP EXTRUSION ASSEMBLY 1 Place two strips of...

Page 10: ...rientation and placement Bezels slide into the top rail and then snap in the bottom rail 4 Attach bezels BY HAND using 12 screws P N 5 00 0133 6 32 x PPZ TT tighten 6 in LB torque 5 Install rubber key...

Page 11: ...d with hole use 12 screws P N 5 00 0138 6 32 X 3 8 PPZ Hilo 6 in LB torque 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...

Page 12: ...in top panel BLACK 2 Attach Voo doo sonic brace with assembly glue and tape with glue block Allow to cure 3 Slide Top Extrusion 9 08 0017 onto Top Panel P N 9 05 0002 on edge closest to Port Tube hol...

Page 13: ...adhesive ring to inside surface of top panel at woofer hole 6 Attach Woofer Mount Rings to top panel using 4 2 each screws P N 5 00 0120 at mounting tabs 7 Attach Woofer Mounting Ring to Front Baffle...

Page 14: ...e and 2 through the Rear Extrusion Use 25 in lb torque Use black assembly glue 10 Install Center Baffle Baltic Birch P N 9 07 0017 against Center Brace and hot glue in place using sealant along all ed...

Page 15: ...n edge of port tube is dyed black Picture 11 A Picture 11 B TILT BOTH PORT TUBES TOWARDS FRONT BAFFLE 14 Apply hot glue to sides of Port Tube Braces and locate as shown in Picture 11 B then glue both...

Page 16: ...or metal particles are between Amp sil pad 5 02 8327 and Rear Panel Apply using 13 in LB of torque Picture 12 Picture 13 Picture 14A Picture 14B 21 Attach Power Supply to Rear Extrusion using 1 screw...

Page 17: ...fer 10 lbs in torque 28 Install both tweeters 7 02 0018 using 6 screws P N 5 00 0139 and with splitlock washer P N 5 01 0031 10 lbs in torque 29 Install the following Top Panel assembly cables as foll...

Page 18: ...ear Extrusion use 6 screws P N 5 00 0833 15 in LB torque 33 Remove phono cliffnuts from Main PCB 34 Install Main PCB P N 9 79 1346 use 3 screws P N 5 00 0075 15 in lb torque and 2 screws P N 5 00 0006...

Page 19: ...y the side panel 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 in Picture 16B Pict...

Page 20: ...ybed at tapped holes 3 Route keyboard cables safely away from mounting points 3 5 Apply jet melt glue across header to glue cable to PCB assembly Inspect bottom panel for defects 4 Attach Bottom Panel...

Page 21: ...6 Install Headphone PCB P N 9 79 0033 on Front Extrusion tighten plastic nuts by hand using a 12mm nut driver 7 Attach protective plastic sheet to keyboard and move assembly to final area Picture 17A...

Page 22: ...14 Attach Access Panel 9 01 0035 to Bottom Panel use 10 screws P N 5 00 8327 15 Install End Cap Left using 5 screws P N 5 00 0814 2 through top assembly 1 through rear extrusion and 2 through bottom h...

Page 23: ...omplete assembly box 25 Build Gift Box close bottom with staples 9 and attach Barcode label 26 Attach foam end caps Right Left to unit 27 Place Center Support in box with smaller foam piece in front 2...

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