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Schematics

48 items in Schematics

All Bill of Materials 3 Circuit Diagram 2 Diagram 4 Pre-Amp Schematic 14 Schematic 17 Service Guide 2 Technical Drawing 1 Troubleshooting Guide 2 Wiring Diagram 2
All Bill of Materials 3 Circuit Diagram 2 Diagram 4 Pre-Amp Schematic 14 Schematic 17 Service Guide 2 Technical Drawing 1 Troubleshooting Guide 2 Wiring Diagram 2
Ovation Optima Pre-Amp Assembly - Indented Bill of Material Bill of Materials

Ovation Optima Pre-Amp Assembly - Indented Bill of Material

1999

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Ovation Optima Pre-Amp Assembly - Indented Bill of Material
1999 · US

Ovation Optima Pre-Amp Assembly - Indented Bill of Material

Year: 1999

Complete bill of material for the Ovation Optima onboard active preamp system (parent item 705950-C). Includes pre-amp PCB assembly, output jack assembly, bezel/tuner assembly, and ribbon cable assembly. Features TL062CP and HC33179P op-amps for audio signal path, TLC3702CP comparator, FET input transistor for low noise, 2N5088 NPN transistor, integrated chromatic tuner with Epson crystal, dual slide pots for EQ, rotary volume pot, DPDT switching, Schottky and Zener diode protection, and LED indicator. Enclosure is aluminum with Optima-branded control panel overlay. Document dated Nov 3, 1999, Revision C.

Ovation Viplector Wiring Diagram Diagram

Ovation Viplector Wiring Diagram

1998

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Ovation Viplector Wiring Diagram
1998 · US

Ovation Viplector Wiring Diagram

Year: 1998

Wiring diagram for the Ovation Viplector guitar featuring active EMG pickups (SA single-coil and 89 dual-mode humbucker) with a Viper preamp. Circuit uses 25K audio taper potentiometers for master volume and master tone, a 5-way selector switch, and bypass capacitors (.001 and .05). EMG 89 switching noted as optional. Dated August 1998 by kkeller.

Ovation TS Preamp Electronics Service Guide Service Guide

Ovation TS Preamp Electronics Service Guide

1997

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Ovation TS Preamp Electronics Service Guide
1997 · US

Ovation TS Preamp Electronics Service Guide

Year: 1997

Service guide for the Ovation TS preamp system used in Ovation guitars. The TS preamp consists of three discrete electronics assemblies: a Flex PCB (Part 707010-A) with eight capacitive proximity sensing areas and encoding circuitry, an Output PCB (Part 707020-A) which is a double-sided glass SMT board providing power, audio signal path, voltage divider attenuation, and a preset EQ curve, plus a battery holder. All boards use surface mount technology. Published by Ovation Instruments, Division of Kaman Music Corporation. Document 990166-A.

Ovation OP-24 Plus C Pre-Amp Schematic with Tuner Pre-Amp Schematic

Ovation OP-24 Plus C Pre-Amp Schematic with Tuner

1996

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Ovation OP-24 Plus C Pre-Amp Schematic with Tuner
1996 · US

Ovation OP-24 Plus C Pre-Amp Schematic with Tuner

Year: 1996

Complete preamp schematic for the Ovation OP-24 Plus C onboard guitar preamp system. Features 3-band EQ (bass, mid with switchable 400Hz/1500Hz center, treble), preshape circuit, volume control with stereo pot, EQ bypass, low battery indicator, and integrated COP912C-based chromatic tuner with sharp/flat/in-tune LED indicators. Drawing No. 51-301, Rev 1.0, dated 8/26/96. Includes PCB component placement layouts (top and bottom) with part numbers and values. Designed by Music & Technology for Ovation Instruments.

Ovation Instruments HEX Buffers and Logic Schematic Rev 1.0 Pre-Amp Schematic

Ovation Instruments HEX Buffers and Logic Schematic Rev 1.0

1995

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Ovation Instruments HEX Buffers and Logic Schematic Rev 1.0
1995 · US

Ovation Instruments HEX Buffers and Logic Schematic Rev 1.0

Year: 1995

Four-sheet schematic for the Ovation HEX Pre-Amp system (product 42-224A, dated 7/18/95). Sheet 1: six individual piezo transducer buffer inputs using TL064 op-amps feeding a diode matrix with CD4017/CD4013 mode switching logic (PAN, ALT, AUTO SLOW/FAST, MONO, 2/4, 3/3 modes). Sheet 2: stereo L/R mixing network using 74HC4053 analog multiplexers with mono mix summing and VCA signal paths. Sheet 3: voltage-controlled amplifier stages for L/R channels with an LFO built around a 2N5930 transistor, plus analog and digital VREF generation. Sheet 4: stereo output stage with independent jack-actuated 1/4-inch output connectors for left, right, and combined stereo output with power-on switching.

Ovation Acoustic/Electric Interconnect Controller Diagram for Roland Diagram

Ovation Acoustic/Electric Interconnect Controller Diagram for Roland

1994

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Ovation Acoustic/Electric Interconnect Controller Diagram for Roland
1994 · US

Ovation Acoustic/Electric Interconnect Controller Diagram for Roland

Year: 1994

Wiring interconnect diagram dated 12/13/94 showing cable connections between Roland hex magnetic pickup, two Roland PCBs, and Ovation PCB OV1276. Includes cable lengths in inches and centimeters, connector pinouts, output jack wiring with color codes (pink positive, white cut off at both ends, bare wire ground), and notes on parts supplied by Ovation vs Roland.

Ovation OP-X Pre-Amp Schematic Pre-Amp Schematic

Ovation OP-X Pre-Amp Schematic

1994

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Ovation OP-X Pre-Amp Schematic
1994 · US

Ovation OP-X Pre-Amp Schematic

Year: 1994

Professional multi-board preamp schematic for the Ovation OP-X onboard guitar preamp system. Comprises four circuit boards: Input Board (40-601BH) with JFET buffer, state variable notch filter, and volume control; Slider Board (40-602BH with tuner, 40-603BH with graphic EQ) featuring slider-based bass/treble/600Hz/6KHz EQ controls, graphic EQ bypass, notch bypass, and chromatic tuner with calibrate function; Output Board (40-604BH) with balanced XLR output, 1/4-inch output, and 11V zener protection. Also includes battery box assembly diagram. Drawing Rev 2, dated 8/17/94, drawn by N.M. and b.h. for Ovation Instruments. Most advanced Ovation preamp design with phantom power support and professional output options.

Ovation Optima Pre-Amp Preliminary Product Specification Schematic

Ovation Optima Pre-Amp Preliminary Product Specification

1994

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Ovation Optima Pre-Amp Preliminary Product Specification
1994 · US

Ovation Optima Pre-Amp Preliminary Product Specification

Year: 1994

Preliminary Product Specification (dated 8/9/94) for the Ovation Mic/Piezo Preamp (Optima). Describes a dual pickup system using piezo transducer and Telex ELM-33 sub-mini condenser mic with crossover circuit design. Includes block diagram (Fig. 1, dated 7/8/94) showing signal flow from piezo/mic inputs through low-pass/high-pass filters, crossover mixer, EQ, and balanced output. Frequency response plots for low-pass and hi-pass filters (dated 08/08/94). Controls: Volume, Blend, Treble (+/-10dB), Bass (+/-14dB), EQ Bypass, X-over (900Hz/1.8KHz), Mid Shape (500Hz, 8dB cut). Interface: 5K Ohm mic input with 9V bias, >5M Ohm piezo input. Outputs: XLR balanced with phantom power, 1/4 inch stereo jack. Chassis similar to OP-24Plus, output PCB same as Optima.

Ovation FET-3 Preamp / Fishman Matrix Hybrid Wiring Schematic and Mounting Plans Schematic

Ovation FET-3 Preamp / Fishman Matrix Hybrid Wiring Schematic and Mounting Plans

1993

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Ovation FET-3 Preamp / Fishman Matrix Hybrid Wiring Schematic and Mounting Plans
1993 · US

Ovation FET-3 Preamp / Fishman Matrix Hybrid Wiring Schematic and Mounting Plans

Year: 1993

Complete factory engineering documentation for the Ovation FET-3 (part 703800) onboard preamp with Fishman Matrix piezo pickup system, as used in the 1993 Collectors Edition guitars. Includes hybrid wiring requirements, PCB component layout with resistor/capacitor values, Fishman Matrix circuit board mounting plans for the FET-3 enclosure, and Fishman pickup lead wire dimensional drawing. Drawn by M. Callan at Ovation Instruments, dated September 1992 with revisions through January 1993.

Ovation USA Fretwire Engineering Drawings Technical Drawing

Ovation USA Fretwire Engineering Drawings

1992

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Ovation USA Fretwire Engineering Drawings
1992 · US

Ovation USA Fretwire Engineering Drawings

Year: 1992

Manufacturing engineering drawings for Ovation Instruments fretwire specifications. Page 1: Standard Fret Wire (#4479, part 95003-C%50) in nickel silver with detailed cross-section dimensions (crown width 0.092 in / 2.34mm, crown height 0.040 in / 1.02mm, tang width 0.022 in / 0.559mm, overall height 0.078 in / 1.98mm). Page 2: Jumbo Bass Fret Wire (#4049, part 95004-C%50) in nickel silver with larger profile (crown width 0.113 in / 2.87mm, crown height 0.046 in / 1.17mm, overall height 0.103 in / 2.61mm). Both feature staggered barbs on both sides of web. Drawn by R. McCloud, dated 5/5/92, scale 10X, size B. Revision history includes original release by N. Gomlinski 7/15/68.

Changing the Battery Schematic

Changing the Battery

~1990

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Changing the Battery
~1990 · US

Changing the Battery

Year: 1990

Instructions for replacing the alkaline battery in the Ovation onboard preamp for Elite-style, mandolin, or tenor ukulele instruments. Covers battery removal and installation via the internal battery box, with an approximate 100-hour battery life when using an alkaline cell.

Ovation DJ-48 Pre-Amp Circuit Diagram Pre-Amp Schematic

Ovation DJ-48 Pre-Amp Circuit Diagram

1990

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Ovation DJ-48 Pre-Amp Circuit Diagram
1990 · US

Ovation DJ-48 Pre-Amp Circuit Diagram

Year: 1990

Onboard active preamp schematic for the Ovation DJ-4 guitar series (model DJ-48). Two-stage transistor design (KTK1170R) with independent treble and bass tone controls (100KB pots), volume control (50KB pot), IC buffer/regulator (8054 HH), LED indicator, and push-switch bypass. Powered by 9V DC via external jack.

Ovation EQ V1 REV-B2 - Viper EA-68/EA-63 Preamp Schematic Schematic

Ovation EQ V1 REV-B2 - Viper EA-68/EA-63 Preamp Schematic

~1990

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Ovation EQ V1 REV-B2 - Viper EA-68/EA-63 Preamp Schematic
~1990 · US

Ovation EQ V1 REV-B2 - Viper EA-68/EA-63 Preamp Schematic

Year: 1990

Confidential factory schematic for the Ovation Viper EA-68 and EA-63 active 3-band (Bass/Mid/Treble) equalizer preamp circuit. Uses TL062 and TL064 op-amps with gyrator-based tone filters. Drawing dated 3-5-99, revision B2, from Kaman Music (Santa Rosa). Sheet 1 of 1.

Ovation GTM6 Synth Interface Wiring Diagram Diagram

Ovation GTM6 Synth Interface Wiring Diagram

~1990

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Ovation GTM6 Synth Interface Wiring Diagram
~1990 · US

Ovation GTM6 Synth Interface Wiring Diagram

Year: 1990

Hand-drawn wiring schematic for the Ovation GTM6 guitar synthesizer interface. Shows individual hex pickup string connections (E6-black, A5-blue, D4-violet, G3-green, H2-red, E1-blank) routed through a ground bus and multiplexer to a FET 3 preamp, then output via 2.5mm mono plug and stereo jack socket with switch. Includes wiring color notes and pin assignments for multi-pin connectors.

Ovation OP-24 Plus E Pre-Amp Schematic with Tuner Pre-Amp Schematic

Ovation OP-24 Plus E Pre-Amp Schematic with Tuner

~1990

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Ovation OP-24 Plus E Pre-Amp Schematic with Tuner
~1990 · US

Ovation OP-24 Plus E Pre-Amp Schematic with Tuner

Year: 1990

Complete preamp schematic for the Ovation OP-24 Plus E onboard guitar preamp system. Electrically identical to the OP-24 Plus C variant (same Drawing No. 51-301, Rev 1.0, dated 8/26/96) but designated for a different guitar model or form factor. Features 3-band EQ (bass, mid with switchable 400Hz/1500Hz center, treble), preshape circuit, volume control with stereo pot, EQ bypass, low battery indicator, and integrated COP912C-based chromatic tuner with sharp/flat/in-tune LED indicators. Includes PCB component placement layouts (top and bottom) with part numbers and values. Designed by Music & Technology for Ovation Instruments.

Ovation OP-24 Plus Pre-Amp Schematic Pre-Amp Schematic

Ovation OP-24 Plus Pre-Amp Schematic

~1990

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Ovation OP-24 Plus Pre-Amp Schematic
~1990 · US

Ovation OP-24 Plus Pre-Amp Schematic

Year: 1990

Single-page preamp schematic for the Ovation OP-24 Plus onboard guitar preamp (without tuner). Features JFET input buffer (2N5457), 3-band EQ (bass with boost/cut, mid with switchable 400Hz/800Hz center frequency and boost/cut, treble with boost/cut), preshape switch, volume control, EQ bypass, and low battery LED indicator. Uses a single TL064 quad op-amp for all EQ stages. Simpler design than the OP-24 Plus C/E variants which include an integrated tuner. Schematic Rev 2, designed by Richard Davis for Ovation Instruments.

Ovation Optima Pre-Amp Schematic Set Schematic

Ovation Optima Pre-Amp Schematic Set

~1990

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Ovation Optima Pre-Amp Schematic Set
~1990 · US

Ovation Optima Pre-Amp Schematic Set

Year: 1990

Complete 5-sheet schematic set for the Ovation Optima guitar preamp. Includes: Input Board (Dwg 40-601BH, Rev 2, dated 6/22/94) with FET input stage, state variable notch filter, and frequency sweep; Output Board (Dwg 40-604BH, Rev 2, dated 9/22/94) with balanced XLR output driver and 1/4 inch jack; Auto Chromatic Tuner Board (dated 9/21/95) with note indicator LEDs and 32.768KHz crystal oscillator; Slider Board (Dwg 40-602BH, Rev 2, dated 6/22/94) with tuner on/calibrate, battery management, V REF generation, and low battery LED indicator; plus exploded assembly view and Optima Preamp Service Guide cover (Part #980149-A). Drawn by NM, checked by b.h.

Ovation OptiMax Pre-Amp Schematic Pre-Amp Schematic

Ovation OptiMax Pre-Amp Schematic

~1990

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Ovation OptiMax Pre-Amp Schematic
~1990 · US

Ovation OptiMax Pre-Amp Schematic

Year: 1990

Three-sheet circuit schematic (Dwg 42-210a/b/c, Rev 1) for the Ovation OptiMax guitar preamp. Includes piezo buffer/preamp with low-pass filter, microphone buffer/preamp with high-pass filter, crossover mixer, bass EQ (+/-14dB), treble EQ (+/-10dB), mid-shape preshape, EQ bypass, volume control, phantom power supply, and balanced XLR output board. Drawn by N.M., checked by b.h., dated 8/16/94.

Ovation OptiMax Pre-Amp Schematic and Specification Package Pre-Amp Schematic

Ovation OptiMax Pre-Amp Schematic and Specification Package

~1990

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Ovation OptiMax Pre-Amp Schematic and Specification Package
~1990 · US

Ovation OptiMax Pre-Amp Schematic and Specification Package

Year: 1990

Comprehensive OptiMax preamp documentation package including: 3-sheet circuit schematic (Dwg 42-210a/b/c, Rev 1, dated 8/16/94), Preliminary Product Specification for the Ovation Mic/Piezo Preamp (dated 8/9/94) describing dual pickup system with crossover circuit, system block diagram (Fig. 1, dated 7/8/94), low-pass and hi-pass frequency response plots (dated 08/08/94), and picking list/BOM (dated 29-Jun-95, part 706550-A). Controls: Volume, Blend, Treble (+/-10dB), Bass (+/-14dB), EQ Bypass, X-over (900Hz/1.8KHz), Mid Shape (500Hz, 8dB cut). Chassis similar to OP-24Plus.

Ovation Viper USA Body Cavity Routing Template Schematic

Ovation Viper USA Body Cavity Routing Template

~1990

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Ovation Viper USA Body Cavity Routing Template
~1990 · US

Ovation Viper USA Body Cavity Routing Template

Year: 1990

Factory body cavity routing diagram for the Ovation Viper USA solid-body electric guitar. Shows the internal cavity routing layout including neck pocket, pickup cavities, and control cavity relative to the body outline. Hand-labeled Viper Body Cavity. Not an electronic schematic but a woodworking/CNC routing template.

Ovation Stereo VT Preamp Circuit Schematic Schematic

Ovation Stereo VT Preamp Circuit Schematic

1984

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Ovation Stereo VT Preamp Circuit Schematic
1984 · US

Ovation Stereo VT Preamp Circuit Schematic

Year: 1984

Single-channel preamp circuit schematic revised 8-21-84, drawn at 3x scale (2.375 inches). Shows complete signal path from pickup input through tone and volume controls to output jack. Designed for stereo applications with tone control, used only on 12-string pre amps. Includes 8 test points (TP1-TP8) for diagnostics. Second page contains stereo jack wiring diagram by K. Keller (8/11/97) for Ovation preamp models 102000/103600 with Ovation Instruments/Kaman Music/Hamer corporate information.

Ovation Mono VT Preamp Schematic (Drawing 700400) Schematic

Ovation Mono VT Preamp Schematic (Drawing 700400)

1983

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Ovation Mono VT Preamp Schematic (Drawing 700400)
1983 · US

Ovation Mono VT Preamp Schematic (Drawing 700400)

Year: 1983

Single-transistor FET-based active preamplifier circuit for Ovation guitars with piezo pickup. Features high-impedance input (1 MEG), tone-shaping network with dual 100mH inductors and capacitors, and a 100K volume potentiometer. 9V battery powered. Drawing at 3x scale (2.375 inches). Revised 2/19/83.

FET3 / Ovation 4-Lug Jack Wiring - VT-FET3-OP24 Replacement Jack Instructions Wiring Diagram

FET3 / Ovation 4-Lug Jack Wiring - VT-FET3-OP24 Replacement Jack Instructions

~1980

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FET3 / Ovation 4-Lug Jack Wiring - VT-FET3-OP24 Replacement Jack Instructions
~1980 · US

FET3 / Ovation 4-Lug Jack Wiring - VT-FET3-OP24 Replacement Jack Instructions

Year: 1980

Wiring diagram for Ovation guitar replacement output jacks showing two configurations: (1) OP24 4-lug jack (703700-X) with WHITE, GROUND, RED, and BLACK connections, and (2) Volume/Tone (701800-X) with FET3 preamp (703800-X) using RED, GROUND thru both bottom pins, and BLACK connections.

New Battery Box Assembly Diagram

New Battery Box Assembly

~1980

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New Battery Box Assembly
~1980 · US

New Battery Box Assembly

Year: 1980

Exploded assembly diagram for the Ovation guitar battery box, showing all mechanical components including battery box housing, bezel, door, battery clip holder, spring, battery clips, plug and cable assembly, output jack, insulating washers, and label. This is a mechanical assembly diagram (not an electronic circuit schematic) for the onboard preamp battery compartment.

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