5-1
A93F0EA
ELECTRICAL ADJUSTMENT INSTRUCTIONS
General Note: “CBA” is abbreviation for
“Circuit Board Assembly.”
Note:
Electrical adjustments are required after
replacing circuit components and certain
mechanical parts. It is important to perform
these adjustments only after all repairs and
replacements have been completed.
Also, do not attempt these adjustments unless
the proper equipment is available.
Test Equipment Required
1. DC Voltmeter
2. Pattern Generato
3. Color Analyzer
How to make the Service remote
control unit:
Cut “A” portion of the attached remote control unit as
shown in Fig. 1.
How to set up the service mode:
Service mode:
1. Use the service remote control unit.
2. Turn the power on.
3. Press the service button on the service remote
control unit as shown in Fig.1.
1. Purity Check Mode
This mode cycles through full-screen displays of red,
green, blue, and white to check for non-active pixels.
1. Enter the Service mode.
2. Each time pressing [7] button on the service
remote control unit, the display changes as
follows.
Fig. 1
service button
A
[7] button
Note:
When entering this mode, the default setting is White mode.
Purity Check Mode
[7] button
Red mode
Green mode
Blue mode
Black mode
[7] button
White mode
[7] button
[7] button
White 20% mode
[7] button
Summary of Contents for LH7-M22BB
Page 13: ...4 2 A9372DC 2 Rear Cabinet 1 Stand Assembly S 3 S 2 S 2 S 2 S 2 S 2 S 4 S 1 Fig D1...
Page 35: ...9 4 A9372SCM2 Main 2 4 Schematic Diagram...
Page 36: ...9 5 A9372SCM3 Main 3 4 Schematic Diagram...
Page 37: ...9 6 A9372SCM4 Main 4 4 Schematic Diagram...
Page 38: ...9 7 A9372SCF Function Junction Schematic Diagram...
Page 39: ...9 8 A9372SCJ Jack Schematic Diagram...
Page 43: ...9 12 A9372SCD4 Digital Main 4 7 Schematic Diagram...
Page 50: ...9 19 BA9370F01021B Jack CBA Top View JACK CBA Bottom View...
Page 72: ...LH7 M22BB A9372EP 2009 07 31...
