Related Manuals for Wurlitzer 203w
Summarization of Contents
Specifications and Descriptions
Model 200 Specifications
Details specifications for the Model 200 portable piano, including dimensions and features.
Models 203-214V Specifications
Details specifications for console models 203, 203W, 206, 207, 207V, 214, and 214V.
Piano Component Details
Describes the bench, keyboard, action, hammers, tone source, and speakers used in the pianos.
Power Requirements
Details the power consumption (watts) for various Wurlitzer piano models and voltage requirements.
Amplifiers - Technical Descriptions
Amplifier Section Overview
Details the six basic sections of the Wurlitzer amplifier, including power supplies and output stages.
Optional Equipment
Model 206 Bench and Cable
Mentions the bench and special AC cable for the Model 206, including part numbers.
Carrying Case for Model 200 Portable
Case Features and Availability
Describes the heavy-duty carrying case (Model 233A) available for the Model 200 portable.
Carrying Case Instructions
Provides step-by-step instructions for using the Model 233A carrying case for the Model 200 piano.
Preparation of the Piano for Servicing
Initial Servicing Steps
Details initial steps for piano servicing, including unplugging and removing top assembly components.
Model-Specific Preparation
Provides servicing preparation steps tailored for Models 203, 203W, 214 (consoles) and Model 206 (student console).
Model 207 Preparation
Outlines the specific steps for preparing the Model 207 Teacher's Console for servicing.
Key and Action Nomenclature Diagram
Nomenclature Table
Lists and describes the numbered parts of the Wurlitzer Model 200 Series piano action for identification.
Action Diagram
Illustrates the mechanical components of the piano action, referencing numbered parts from the nomenclature table.
Regulation Procedure
Keyboard and Action Inspection
Details inspecting the keyboard and action centers for proper function and identifying issues like sticking keys.
Key Adjustments and Action Part Maintenance
Covers setting key height, spacing, and procedures for removing/replacing action parts.
Hammer and Damper Adjustments
Explains striking point, blow distance, lost motion, let-off, and damper adjustments for optimal performance.
Pedal Adjustments and Regulation
Details sustain pedal operation and damper regulation for proper tone and sustain control.
Shrinking Action Centers
Shrinking Solution and Application
Describes the shrinking solution and its application to action centers to restore freedom due to moisture.
Connecting External Amplifiers
Signal Output Point
Identifies the external output jack as the point for obtaining a signal for external amplifiers.
Early Production Amplifier Modifications
Details component changes required for early production amplifiers to achieve a specific output signal level.
Description of the 207 Teacher's Console
Group Piano Configuration
Explains connecting student pianos to the 207 Teacher's Console for group instruction and private practice.
Ensemble and Self Line Functions
Describes the ensemble and self line operations for group communication and private practice.
Model 207 Checkout Procedures
Initial Setup and Checks
Details connecting units, start positions, and the first check for self-communication.
Communication Settings Checks
Covers checking communication on like/unlike settings and troubleshooting cross-talk.
Ensemble and Audio Aid Checks
Outlines second and third checks for ensemble communication and audio aid functionality.
Replacing Plastic Power Transistors
Transistor Replacement Procedure
Step-by-step guide for removing defective transistors, cleaning, and installing new ones with heat sink compound.
Part Number and Transistor Cross-Reference
Provides a list of Wurlitzer part numbers, original numbers, and manufacturer equivalents for transistors and diodes.
Trouble Shooting Chart for a 206 and 207 Installation
Useful Service Tools
Lists essential tools like a headphone and tape recorder for performing troubleshooting checks.
Piano Dead - No Sound Troubleshooting
Describes troubleshooting steps for a "Piano Dead" complaint, starting with AC power and checking the wall outlet.
Common Faults and Amplifier Noise
Covers troubleshooting common causes like defective transistors, cracked PCBs, and amplifier hiss.
Hum, Buzz, and Interference Issues
Explains how to resolve hum, buzz, RF interference, and other noise issues using various methods.
Pedal, Key, and Reed Performance Issues
Addresses troubleshooting for pedal problems, clicking keys, sluggish action, and faulty reed performance.
Index of Schematics
Schematic List
Lists schematic part numbers, dates, and associated piano models for the Series 200.
Communication Center Schematics
Lists schematics specifically related to the Model 207 Communication Center and its components.
Electronic Piano Amplifier Schematic (Models 200-207)
Amplifier Circuit Diagram
Presents the schematic for the electronic piano amplifier, detailing components, connections, and voltage points.
Electronic Piano Amplifier P.C. Board (Models 200-207)
P.C. Board Component Layout
Shows the physical layout of components on the electronic piano amplifier's printed circuit board.
Electronic Piano Amplifier Schematic (Models 200-214)
Amplifier Circuit Diagram (Models 200-214)
Provides the schematic for amplifier models including 203W and 214, showing connections and components.
Output Signal Connections Diagrams
Model 200 & 203 Signal Connections
Illustrates signal connections for Wurlitzer Models 200 and 203 electronic pianos.
Model 206 Signal Connections
Shows signal routing and connections for the Wurlitzer Model 206 student piano.
Model 207 Signal Connections
Details signal connections and component routing for the Wurlitzer Model 207 teacher's console.
Output Signal Connections (Series 200)
Model 200-Portable Signal Connections
Illustrates signal connections for the portable Model 200, including speaker and phone outputs.
Model 203-214 Console Signal Connections
Shows signal connections for console models 203, 203W, and 214, detailing speaker and phone outputs.
Model 207 Teacher Signal Connections
Details signal connections for the Model 207 teacher's console, including instructor and student audio routing.
Speaker System Wiring Diagram
Model 200 Series Speaker Wiring
Provides the wiring diagram for the speaker system across Wurlitzer's 200 Series pianos.
Communication Center Schematic
Communication Center Circuit Diagram
Presents the schematic for the communication center, showing group connections, instructor communication, and audio aid routing.
Communication Center P.C. Board
P.C. Board Component Layout
Shows the component layout on the printed circuit board for the communication center.
Instructor's Headphone Driver P.C. Board
Headphone Driver P.C. Board Layout
Illustrates the component layout for the instructor's headphone driver printed circuit board.
D.C. Isolation Terminal
Terminal Connections Diagram
Shows the wiring and connections for the D.C. isolation terminal, detailing group and piano connections.
Power Supply Chassis Assembly
Power Supply Component Layout
Details the components and layout of the complete power supply chassis assembly for Model 207.
Audio Distribution Panel Assembly
Panel Component Layout and Wiring
Shows the layout and wiring of components on the audio distribution panel assembly.
Model 200A Component Identification
Amplifier Assembly Diagram
Identifies key components and their locations on the amplifier assembly for Model 200A.
Electronic Piano Amplifier Schematic (Model 200A, 206A, etc.)
Amplifier Circuit Diagram
Presents the overall schematic for amplifier circuits, including various models and their components.
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