Wurlitzer 270 Manuals

Manuals and User Guides for Wurlitzer 270. We have 2 Wurlitzer 270 manuals available for free PDF download: Service Manual

Wurlitzer 270 Service Manual

Wurlitzer 270 Service Manual (82 pages)

Brand: Wurlitzer | Category: Musical Instrument | Size: 3.51 MB

Table of Contents

Specifications
2
Carrying Case
4
Preparation of the Piano for Servicing
5
Regulating Procedure
6
Keyboard Inspection
6
Ease Keys
6
Inspect Action for Free Centers
8
Treating Action Centers
8
Key Bushing Tightener
8
Inspect Action
9
Set Key Height
9
Square and Level
9
Space Keys
9
Striking Point
12
Hammer Blow Distance
12
Adjust Lost Motion
12
Adjust Let-Off
13
Key Dip and Back Checking
13
Damper Sustain Adjustment
14
Damper Leveling
14
Damper Regulation
14
Pedal Instructions
14
Voicing
15
Tuning the Electronic Piano Reed
17
Removing Action Parts
17
To Remove the Amplifier P.C. Board and Mounting Plate Assembly
18
Description of the 207 Teacher's Console
22
207 Check out Procedures
25
Bad Communication on "Like" Settings
25
Communication on "Unlike" Settings
25
Miscellaneous
26
Replacing Plastic Power Transistors
26
Part Numbers
27
Changing the Electronic Piano Amplifier
28
Troubleshooting Chart
31
Piano Dead - no Sound
31
Distorted Tone
31
Excessive "Hiss" in Amplifier
31
R.R. Interference (Radio, TV, Etc.)
32
Excessive Hum or Buzz
32
Keys "Clicking"
32
"Cross Talk" in Lab
32
A "Click" or Noticeable "Snap" When the Sustain Pedal Is Depressed
33
Sticky Keys or Sluggish Action
33
One or more Notes that Are Extra Loud or Harsh
33
"Duds" or Reeds that Ring a very Short Time and "Die Out"
33
Index of Schematics
34
Semiconductors View
36
Schematic Diagrams
38
Input Amplifier
63
Modulator
63
Output Amplifier
63
Electronic Piano Audio Amplifier
64
Service Parts List
74
Troubleshooting
80

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Wurlitzer 270 Service Manual

Wurlitzer 270 Service Manual (81 pages)

Series 200 Series 200A

Brand: Wurlitzer | Category: Synthesizer | Size: 3.52 MB

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