Related Manuals for Alesis QuadraVerb GT
Summary of Contents for Alesis QuadraVerb GT
- Page 1 QuadraVerb GT Service Manual Revision 1.00 10/17/95 QuadraVerb GT Service Manual------...
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Page 2: Preface
Your purchase of the Manual shall be for your own ultimate use and shall not be for purposes of resale or other transfer. 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. -
Page 3: Warnings
Battery Manufacturer: Tadiran Type: TL-5101 Rating 3.6V REPAIR BY ANY PERSON OR ENTITY OTHER THAN AN AUTHORIZED ALESIS SERVICE CENTER WILL VOID THE ALESIS WARRANTY. PROVISION OF THIS MANUAL DOES NOT AUTHORIZE THE RECIPIENT TO 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. -
Page 4: Safety Suggestions
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. QuadraVerb GT Service Manual------... -
Page 5: General Troubleshooting
(burnt, or loose components are a dead giveaway). 2. 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. -
Page 6: Table Of Contents
Table of Contents PREFACE......................II READ THIS!......................II WARNINGS......................III SAFETY SUGGESTIONS...................IV General Troubleshooting..................V 1.0 Schematics....................7 2.0 Software History....................9 3.0 GT MIDI Implementation................10 4.0 GT Service Parts List..................26 Service Manual History..................30 INDEX........................31 QuadraVerb GT Service Manual------... -
Page 7: Schematics
1 . 0 Schematics QuadraVerb GT Service Manual------... - Page 8 QuadraVerb GT Service Manual------...
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Page 9: Software History
2) Fixes erroneous setting of preamp parameters when a program using the sampling configuration is recalled. 3) Fixes distorted audio when a program using the reverb configuration has its reverb chorus speed, or depth modulated via MIDI. 1.02 Never released. 10\28\92 1.03 New set of factory programs. QuadraVerb GT Service Manual------... -
Page 10: Gt Midi Implementation
7 QuadraVerb-GT data bytes. If the 7 data bytes are looked at as one 56- bit word, the format for transmission is eight 7-bit words beginning with the most significant bit of the first byte, as follows: QuadraVerb GT Service Manual------... - Page 11 When this message is received, a MIDI data dump will be initiated, and the display will read: MIDI DATA DUMP IN PROGRESS Upon completion of the dump, the display will return to its previously displayed page. QuadraVerb GT Service Manual------...
- Page 12 0-99 (GATE HLD) 0-99 (GATE HLD) 0-99 (GATE HLD) 0-99 (GATE REL) 0-99 (GATE REL) 0-99 (GATE REL) 0-99 (GATE REL) 0-99 (GATE LEV) 0-99 (GATE LEV) 0-99 (GATE LEV) 0-99 (GATE LEV) DELAY (FUNCTION 2) CONFIGURATION 0 (EQ-PCH-DL-REVERB): page QuadraVerb GT Service Manual------...
- Page 13 0-198 (TAP x PANNING) 0-99 (TAP x FEEDBACK) 0-99 (MASTER FEEDBACK) * Sum off Z for all 8 taps less or equal to 1470 ** x = Number of currently selected tap CONFIGURATION 4 (3 BAND EQ-REVERB): Not used QuadraVerb GT Service Manual------...
- Page 14 CONFIGURATION 1 (LEZLIE-DL-REVERB): page 0-99 (SEPARATION) 0-1 (MOTOR) 0-1 (SPEED) CONFIGURATION 2 (GRAPHIC EQ-DELAY): Not used CONFIGURATION 4 (3 BAND EQ-REVERB): page 0 (type) 0 (CHORUS OFF) 1 (CHORUS ON) 0-1 (WAVE) 0-98 (SPEED) 0-98 (DEPTH) QuadraVerb GT Service Manual------...
- Page 15 CONFIGURATION 1 (LEZLIE-DL-REVERB): page 0-26 (HIGH ROTOR LEVEL) CONFIGURATION 2 (GRAPHIC EQ-DELAY): page 0-6 (EQ PRESET) 0-28 (16Hz) 0-28 (32Hz) 0-28 (62Hz) 0-28 (126Hz) 0-28 (250Hz) 0-28 (500Hz) 0-28 (1KHz) 0-28 (2KHz) 0-28 (4KHz) 0-28 (8KHz) 0-28 (16KHz) QuadraVerb GT Service Manual------...
- Page 16 0-60 (RESONATOR 3 TUNE) 0-60 (RESONATOR 4 TUNE) 0-60 (RESONATOR 5 TUNE) CONFIGURATION (FUNCTION 7) page 0-7 (CONFIGURATION) 0: EQ>PCH>DL>REVERB 1: LEZLIE>DL>REVERB 2: GRAPHIC EQ>DELAY 3: 5BAND EQ>PCH>DLY 4: 3 BAND EQ>REVERB 5: RING>DL>REVERB 6: RESONATOR>DL>REV 7: SAMPLING QuadraVerb GT Service Manual------...
- Page 17 0-99 (PREAMP LEVEL) 0-99 (EQ LEVEL) 0-99 (REVERB LEVEL) 0-99 (REVERB LEVEL) CONFIGURATION 5 (RING-DL-REVERB): page 0-99 (DIRECT LEVEL) 0-99 (MASTER FX LEVEL) 0-99 (PREAMP LEVEL) 0-99 (RING MOD. LEVEL) 0-99 (DELAY LEVEL) 0-99 (REVERB LEVEL) QuadraVerb GT Service Manual------...
- Page 18 0-126 (MOD 6 SOURCE) 0-? * (MOD 6 TARGET) 0-198 (MOD 6 AMPLITUDE) 0-126 (MOD 7 SOURCE) 0-? * (MOD 7 TARGET) 0-198 (MOD 7 AMPLITUDE) 0-126 (MOD 8 SOURCE) 0-? * (MOD 8 TARGET) 0-198 (MOD 8 AMPLITUDE) QuadraVerb GT Service Manual------...
- Page 19 HIGH DEC HIGH DEC DELAY CONFIGURATION 0,1 (nothing in 4 & 7): Target MONO STEREO PING-PONG 10H IN MIX IN MIX IN MIX 11H DELAY L DELAY DELAY 12H FEEDB L FEEDB FEEDB R DELAY R FEEDB QuadraVerb GT Service Manual------...
- Page 20 Target M CHORUS S CHORUS M FLANGE S FLANGE DETUNE PHASER SPEED SPEED SPEED SPEED DETUNE SPEED DEPTH DEPTH DEPTH DEPTH DEPTH FBACK FBACK FBACK FBACK CONFIGURATION 1 (LEZLIE-DL-REVERB): Target 20H SEPARATION 21H MOTOR 22H SPEED QuadraVerb GT Service Manual------...
- Page 21 MID EQ FREQUENCY HIGH EQ FREQUENCY MID EQ BANDWIDTH HIGH EQBOOST/CUT MID EQ BOOST/CUT CONFIGURATION 1 (LEZLIE-DL-REVERB): Target 30H HIGH ROTOR LEVEL CONFIGURATION 2 (GRAPHIC EQ-DELAY): Target 16Hz 32Hz 62Hz 126Hz 250Hz 500Hz 1KHz 2KHz 4KHz 8KHz 16KHz QuadraVerb GT Service Manual------...
- Page 22 PITCH LEVEL DELAY LEVEL DELAY LEVEL REVERB LEVEL REVERB LEVEL MOD DEPTH MOD DEPTH MOD SPEED MOD SPEED CONFIGURATION 1 (LEZLIE-DL-REVERB): Target 40H DIRECT LEVEL 41H FX LEVEL 42H LEZLIE LEVEL 43H DELAY LEVEL 44H REVERB LEVEL QuadraVerb GT Service Manual------...
- Page 23 42H PREAMP LEVEL 43H RESONATOR LEVEL 44H DELAY LEVEL 45H REVERB LEVEL CONFIGURATION 7 (SAMPLING): Not used PREAMP CONFIGURATION 0, 1, 2, 3, 4, 5, 6: Target 70H PREAMP OUT LEVEL CONFIGURATION 7 (SAMPLING): Not used QuadraVerb GT Service Manual------...
- Page 24 0-2 (CAB SIMULATOR) 0-1 (EFFECT LOOP) 0-17 (NOISE GATE) 0-99 (PREAMP OUTPUT LEVEL) CONFIGURATION 7 (SAMPLING): page 0-7 (COMPRESSION) 0-7 (OVERDRIVE) 0-8 (DISTORTION) 0-2 (PREAMP TONE) 0-1 (BASS BOOST) 0-2 (CAB SIMULATOR) 0-1 (EFFECT LOOP) 0-17 (NOISE GATE) QuadraVerb GT Service Manual------...
- Page 25 7E OVERDRIVE (7-5) / NOISE GATE (4-0) 7F PREAMP OUTPUT LEVEL RES* = Resonator parameters in QUAD and 3 BAND EQ-REVERB modes RES** = Resonator parameters in 5 BAND EQ-PITCH-DELAY mode RES*** = Resonator parameters in RESONATOR-DELAY-REVERB mode QuadraVerb GT Service Manual------...
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Page 26: Gt Service Parts List
TOP PCB (7), BOT PCB (6) #6 INT STAR WASHER 5-01-0002 HEATSINK STANDOFFS NYLON SPACER 0.095 5-01-0007 FRONT PCB (4), LED PCB (2) 7/16 STAR WASHER 5-01-0008 IN (2), OUT (2), ADV, BYP, SND GROUP DESCRIPTION PART # POSITION MANUFACTURER NOTES QuadraVerb GT Service Manual------... - Page 27 POT PCB LED (RED) T1 3-02-0001 POT PCB, KEY PCB PT,KY DPDT SWITCH (ALPHA) 6-02-0001 MAIN PIEZO 7-00-0001 GROUP DESCRIPTION PART # POSITION MANUFACTURER NOTES 24 MHz XTAL 7-01-0006 MAIN LITHIUM BAT (PANA 3V) 7-05-0003 MAIN PANASONIC QuadraVerb GT Service Manual------...
- Page 28 MAIN 300 1/8W 5% 0-00-0301 R108 MAIN 1/8W 5% 0-00-0302 R191 MAIN GROUP DESCRIPTION PART # POSITION MANUFACTURER NOTES 30K 1/8W 5% 0-00-0303 R43,46,53,70,72,103 MAIN 300K 1/8W 5% 0-00-0304 MAIN 3.3K 1/8W 5% 0-00-0332 R32,94,110,162,182 MAIN QuadraVerb GT Service Manual------...
- Page 29 R146 MAIN KEYPAD 9-23-1005 18 PIN DIP 0.3 4-04-0018 U22-26 MAIN 22 PIN DIP 0.3 4-04-0022 MAIN 28 PIN DIP 0.6 4-06-0028 U20,29,30 MAIN 40 PIN DIP 0.6 4-06-0040 MAIN 84 PIN ASIC SOCKET 4-12-0084 MAIN QuadraVerb GT Service Manual------...
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Page 30: Service Manual History
Service Manual History 10/17/95 V1.00 First release. QuadraVerb GT Service Manual------... -
Page 31: Index
MIX..................................10, 12, 13, 14, 15, 17, 19, 20, 21, 22, 25 MOD......................................10, 17, 18, 19, 22, 23, 25 MODULATION........................................17, 19, 25 Most Significant Bit..........................................10 MPU..............................................27 MSB.............................................10, 25 MULTITAP............................................25 NOISE GATE..........................................24, 25 OPCODES............................................10 output level..........................................24, 25 OVERDRIVE..........................................24, 25 QuadraVerb GT Service Manual------... - Page 32 REVERB............................9, 10, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25 RING MOD..........................................17, 25 S1..............................................27 SAMPLE............................................14, 25 SRAM..............................................27 SYSTEM EXCLUSIVE........................................10 U1..............................................27 U10..............................................27 U12..............................................27 U17..............................................27 U21..............................................27 U28..............................................27 U29..............................................27 U3..............................................27 U32..............................................27, 29 U33..............................................27 U34..............................................27 U35..............................................27 U4..............................................27, 29 U40..............................................27 U41..............................................27 U42..............................................27 U43..............................................27 VCA..............................................27 Z1...............................................27 QuadraVerb GT Service Manual------...
- Page 33 NOTES QuadraVerb GT Service Manual------...