Sharp LC-28HM2, Service Manual

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17
LC-28HM2
AN-28SP2
4
Process adjustment mode for display only
[Procedure]
Separate the display from the AVC center.
While pressing [BRIGHTNESS] and [VOL–] buttons simultaneously, switch on the power.
[Contents]
Various monitor side adjustments can be made manually.
(1) Lamp error reset (Done automatically with presetting)
Set 0F 00 0 in the 1st line, and then set 1 into the least significant bit. Upon this setting, the “lamp error” is
reset.
(After reset, 1 in the least significant bit will not become 0 automatically.)
After reset, switch off the power once and confirm that the system can be restarted in normal mode.
(2) Monitor G/A test pattern reset
Set 00 10 00 in the 3rd line, and then set 1 in the 4th line. Upon this setting, the blue screen appears. Thus
the test pattern in the monitor process adjustment is reset.
(After reset, the fourth line will not become 0 automatically.)
After reset, switch off the power once and confirm that the system can be restarted in normal mode.
3. How to terminate special modes
1
Process adjustment mode:
Press [PROCESS ADJUSTMENT] button of the remote controller, or switch off the power.
2
Inspection process mode:
Turn P1L6 “SIGNAL INFO” to “OFF”, or switch off the power.
3
Presetting:
Upon completion, the system automatically moves to the process adjustment mode.
4
Process adjustment mode for display only:
Switch off the power.