Mitsubishi Electric WD-52531, Service Manual, Page: 21 / 63

MODEL: WD-52531 / WD-62531 / WD-62530
Page 21
Circuit Adjustment Mode
On these models, the Circuit Adjustment Mode is used only for:
• Test Signal activation
• Horizontal Centering
• Vertical Centering the following adjustments may only be performed using the remote hand unit.
1. Activating the adjustment mode
1. Press the “MENU” button on a remote hand unit.
(The “MENU” display will appear.)
2. Press the buttons “2”, “4”, “5” and “7” in that order.
(The screen will change to the adjustment mode.)
If not changed to the adjustment mode, repeat steps
1 and 2.
2. Test Signal Activation
When in the Circuit Adjustment mode, use the “REWIND”
and “FAST FORWARD” buttons on the remote
control to toggle through the test patterns. These patterns are used
for both electrical and mechanical
adjustments.
3. Adjustment Function Selection
Use the “AUDIO” button to select a specific Adjustment Function.
NOTE: The only Service Adjustment Modes are Format (fmt) and Doubler.
SERVICE ADJUSTMENTS
There are only 5 Service Adjustments required in these models:
Two Electrical Adjustments
• Horizontal Centering
• Vertical Centering
Three Mechanical Adjustment
• Picture Rotation
• Horizontal Keystone Distortion
• Vertical Keystone Distortion
Measuring equipment and Jigs
• No additional Test Equipment is required.
• Conventional Electrical Hand Tools.
Test signal
An internally generated Test Signal is used, no additional external signals are required.
Doubler
fmt
Functions