Service Adjustments; Equipment & Test Signals; Service Menu - Mitsubishi Electric WD-73C1 Service Manual

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Table Of Contents

Table of Contents

MODELS: WD-73640 / WD-73740 / WD-73840 / WD-73C11 / WD-73CA1 /

Service Adjustments include Adjustment Procedures and Data Transfer Functions.

Electrical Adjustments

•

Horizontal and Vertical Centering Adjustment

•

Index Delay Adjustment

•

Geometry Alignment

•

Data Transfer Functions

Test Equipment and Test Patterns

•

Remote Control

•

Internally generated Test Patterns

•

No external test equipment or pattern generators are required.

The Service Menu is used for all service adjustments.

Service adjustments can only be performed using the remote control.

1. Activating the Service Menu

1. Press the <MENU> button on a remote control. (The Customer Menu will appear.)

2. Press the buttons <2-4-5-7>. (The Service Menu will appear.)

2. Test Pattern Activation

When in the Service Menu, press the <2> or <> key on the remote to activate the internal test patterns (no

indication will be displayed initially). Use <CH-UP/CH-DOWN> or <

<2> or <> a second time and use <CHAN-UP/CHAN-DOWN> or <

Press <2> or <> again to toggle back to the previous patterns.

3. Adjustment Overview—Specific adjustment procedures follow.

1. When in the Service Menu use the <VIDEO> button to toggle to adjustment desired indicated by the

number and abbreviation displayed on screen.

2. For Geometry, from the Service Menu press <0> and select "Manual Geometry Alignment" <ENTER>.

4. Adjusting Data

After selecting an adjustment item, use the Navigation arrows or other buttons indicated in the adjustment

procedure to perform the adjustment.

5. Saving Data

Press <ENTER> to save the adjustment data. The menu display will turn red for approximately one second.

Note: If the circuit adjustment mode is terminated without pressing <ENTER>, changes in adjustment data

are not saved.

6. Exiting the Service Menu

Press <EXIT> to quit.

WD-82740 / WD-82840 / WD-82CB1 / WD-92840