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Confidential 

Alesis Service Manual 

8-31-0159-A 

Safety Instructions 

 
Carefully read the applicable items of the operating instructions and these safety 
suggestions before using this product. Use extra care to follow the warnings 
written on the product itself and in the operating instructions. Keep the operating 
instructions and safety suggestions for reference in the future.   
 

1. Power 

Source. The product should only be connected to a power supply which is described 

either in the operating instructions or in markings on the product. 

 
2. Power 

Cord 

Protection. AC power supply cords should be placed such that no one is likely to 

step on the cords and such that nothing will be placed on or against them. 

 
3.  Periods of Non-use.  If the product is not used for any significant period of time, the product's 

AC power supply cord should be unplugged from the AC outlet. 

 
4.  Foreign Objects and Liquids.  Take care not to allow liquids to spill or objects to fall into any 

openings of the product. 

 
5.  Water or Moisture.  The product should not be used near any water or in moisture. 
 
6. Heat.  Do not place the product near heat sources such as stoves, heat registers, radiators or 

other heat producing equipment. 

 
7. Ventilation.  When installing the product, make sure that the product has adequate 

ventilation. Improperly ventilating the product may cause overheating, which may damage the 
product. 

 
8. Mounting.  The product should only be used with a rack which the manufacturer 

recommends.  The combination of the product and rack should be moved carefully.  Quick 
movements, excessive force or uneven surfaces may overturn the combination which may 
damage the product and rack combination. 

 
9. Cleaning.  The product should only be cleaned as the manufacturer recommends. 
 
10. Service.  The user should only attempt the limited service or upkeep specifically described in 

the operating instructions for the user.  For any other service required, the product should be 
taken to an authorized service center as described in the operating instructions. 

 
11.  Damage to the Product.  Qualified service personnel should service the unit in certain 

situations including without limitation when: 
a.  Liquid has spilled or objects have fallen into the product, 
b.  The product is exposed to water or excessive moisture, 
c.  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.

Summary of Contents for BASSFIRE 60

Page 1: ...are hereby notified that any review dissemination distribution or duplication of this document is strictly prohibited If you are not authorized please contact Alesis and destroy all copies of this doc...

Page 2: ...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 perfo...

Page 3: ...COMPETE WITH ANY ALESIS DISTRIBUTOR OR AUTHORIZED REPAIR SERVICE CENTER IN THE PROVISION OF REPAIR SERVICES OR TO BE OR MAKE REPAIRS AS AN AUTHORIZED SERVICE CENTER ALL REPAIRS DONE BY ANY ENTITY OTHE...

Page 4: ...stoves heat registers radiators or other heat producing equipment 7 Ventilation When installing the product make sure that the product has adequate ventilation Improperly ventilating the product may...

Page 5: ......

Page 6: ...Confidential Alesis Service Manual 8 31 0159 A ALESIS BassFire 60 GB0 Test Procedures...

Page 7: ...ckwise and anti clockwise 2 EFFECTS setting use VALUE knob to change the parameter Clockwise and counterclockwise 4 1 PLAY In this setting the display shows the current program number It can store the...

Page 8: ...F PARAM This parameter modifies the operation of the effect selected for the FX3 module 4 10 DIGFX has 22 Performing modes and an off mode Performing modes d0 d9 dP b0 b9 bP Off mode OF 4 11 LEVE used...

Page 9: ...ogram numbers The footswitches work in the same way as the Program Up and Program Down buttons 2 EXPRESSION PEDAL connect to EXP PEDAL input signal It is balanced input Connected to B50K potentiometer...

Page 10: ...rify output signal changing 2 10 DIGFX Performing testing rotate the EFFECT knob one click to the right so the indicator points to NR connect musical signal to INPUT jack rotate VALUE knob verify the...

Page 11: ...NK OUTPUT jack testing Condition connect signal to INPUT jack series connect one 470Kohm resistor between ground and signal output parallel connect one 32ohm 1w resistor input sensitivity input 1KHZ 1...

Page 12: ...he indicator points to EQ Verify that display shows S4 and does not flicker 19 Rotate EFFECT knob one click to the right so the indicator points to NR Verify that display shows S5 and does not flicker...

Page 13: ...se VALUE knob verify that AL flashes rapidly a few times then continues flashing at the previous rate 3 Rotate EFFECT knob so that the indicator points to COMP LIMIT verify that display shows OF 4 Rot...

Page 14: ...the winding of transformer short circuit or not Change with proper one Fix the voltage problems Fix the voltage problems DONE Replace with proper one Make sure the power is plugged into a proper AC o...

Page 15: ...maged Speaker damaged Fix the problems DONE Replace with proper one Change signal source and cables YES YES Replace with proper one YES Pre AMP circuit and self protect component short circiut or disc...

Page 16: ...eplace with proper one Replace with proper one DONE DONE Check DC voltage 15V 5V 3 3V normal or not Check DC voltage 15V 5V 3 3V and display Change U8 on MAIN PCB failure NO NO OK Fix voltage problems...

Page 17: ...Confidential Alesis Service Manual 8 31 0159 A ALESIS BassFire 60 GB0 SCHEMATIC AND PCB FILES...

Page 18: ...GAX_MAIN_V1 1 sch 1 Mon Feb 28 16 17 24 2005...

Page 19: ...GAX_MAIN_V1 1 sch 2 Mon Feb 28 16 17 26 2005...

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Page 22: ...sch 1 Mon Feb 28 16 08 43 2005...

Page 23: ...sch 1 Mon Feb 28 16 07 56 2005...

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Page 39: ...Confidential Alesis Service Manual 8 31 0159 A ALESIS BassFire 60 GB0 BOM...

Page 40: ...CS 1 1 70010082 screw M3 8mm cross round head the head of screwD5 5mm machinery screw black zinc PCS 3 1 70010048 screw M3 6mm cross round head the head of screw is D5 5mm machinery screw black zinc P...

Page 41: ...otary VR AN V12N double connecting A10K RV112B 40E1N 175A A10K A PCS 1 1 VR1 15010163 rotary VR AN V12Q single connecting B50K RV09B 40E1N 165F B50K A PCS 3 1 P2 P3 P4 CC000014 electronic semi finish...

Page 42: ...ck cutting the pin to be 6mm PCS 1 1 C35 17010307 E C 220uF 16V 20 105 6 3 11mm P 2 5mm bla ck cutting the pin to be 6mm PCS 1 1 C12 17010308 E C 220uF 25V 20 105 6 3 14mm P 2 5mm bla ck cutting the p...

Page 43: ...0 0 08mm PCS 1 1 23010021 packing bag PE 120 280 0 08mm PCS 1 1 23010202 packing bag PE 530 440 1060 0 1mm PCS 1 1 23080063 paper card GB0 left knife sheet PCS 1 1 23080065 paper card GB0 right left s...

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