MITSUBISHI LASERVUE PROJECTION HDTV - HOW TO ENTER SERVICE MODE & ADJUSTMENTS - LED BLINKING CODES - ERROR CODE LOG - ERROR CODES OPERATIONAL CHECK

FRONT PANEL LED INDICATIONS
The front panel LEDs provides an indication of the set’s operation, and the possible cause of a malfunction. There are two front panel LEDs, “Power” and “Status.” The LED display shows the current status or indicates a possible malfunction.  If an abnormal condition is indicated, proceed to the Error Code Operational Check for more specific information.

Power LED [Normal Condition]	Status LED	Condition
Off	Off	Off (Standby)
Fast Blinking Green	Off	Initialization (40 - 60 seconds after set plugged in or System Reset)
Green	Off	Power On
Slow Blinking Green	Off	Power On Timer is set
Abnormal Indications
Off	Yellow	* Temperature high – room hot. * Laser unit temperature is abnormally high. * Optical fiber temperature is abnormally high
Off	Blinking Yellow	Cover-back (top/bottom)is open.  Yellow Laser unit is not assembled completely.
Off	Red	* Laser unit failure * Laser abnormal brightness * Linear motor failure * Communication in laser unit failure Chassis side failure *Communication with laser micro fail * Communication with engine fail * No Lamp-EN, No ASIC-ready * DVI cable disconnection Circuit failure (short)
Off	Blinking Red	Fan Stop (DMD Fan, Fan in laser unit)

ERROR CODE OPERATIONAL CHECK

When the Status LED indicates an abnormal condition, perform the Error Code Operational Check.

To activate, press the front panel INPUT and MENU buttons at the same time and hold for 5 seconds.

The “POWER LED” will then flash denoting a two-digit code.

• The number of flashes indicates the value of the MSD (tens digit) of the Error Code.
• The flashing then pauses for approximately 1/2 second.
• The LED then flashes indicating the value of the LSD (ones digit) of the Error Code.
• The Error Code is repeated a total of 5 times.

Example: If the Error Code is “23”, the LED will flash two times, pause, and then flash three times.

Note: The TV must be in “Shut Down” and not have been switched Off, to perform the Error Code Operational Check. When the TV is switched Off, the code automatically resets to “12” No Error.

Note: Use the front panel buttons, not the remote control.

Note: If there is no response, the front panel may be locked by a V-Chip setting. To unlock, press and hold MENU for 5 seconds.

LED INDICATOR DIAGNOSIS

Error Codes:  The Error Code designations indicating malfunction, or no malfunction, are listed below:

{CLICK ON PICTURES TO ZOOM IN}

Error Code 19: To reset the SENSOR-RGB Data, first perform the Un-Lock procedure. Then with the set Off (Standby) press MENU and Ch Up for 5 seconds until the STATUS LED turns green for 3 seconds. After operation is restored, perform the MEMORIZE SENSOR-RGB.

Lock out:  The receiver is locked, and cannot be powered ON even after reset.  After correcting the cause, re-boot the TV and un-lock the set by pressing 'Menu' & 'Ch Dn' for 5 seconds, until Red Status LED goes out.

ERROR CODE LOG

The Error Code Log - may be helpful to retrieve the code for an error the occurred in the past.

To access the Error Code Log: Press MENU - 3-5-6-4

Error Code Definitions

• Page - Current page number
• Current Time - total hours of operational use.
• Lamp Time - usage hours when the error occurred.
• Code - the specific Error Code that occurred.
• Status - Two types:  OCCURRENCE - when the error occurred.  RECOVERY - when normal operation resumed.

The Error Code Log is intended as a reference tool and is not meant to be used as a final determination of a defective part.

SERVICE MODE

The Service Mode is used for:

• Test Signal activation - Used for both Electrical and Mechanical Adjustments.
• Horizontal and vertical position adjustment
• Keystone, 4:3 and letterbox geometry adjustments.
• Data transfer (restore and backup).
• Memorize RGB Sensor.

Activating the Service Mode

1. Press the “MENU” button on the remote control. The “Customer Menu” will appear.
2. Press 2-4-5-7. The Service Menu below will appear. If not, press, “EXIT” and repeat steps 1 and 2.

Test Pattern Activation

• When in the Service Mode, press PLAY <►> to activate the internal test patterns (no indication will be given), then use FAST FORWARD <►►>or REWIND <◄◄>to select the desired Test Pattern.

HORIZONTAL & VERTICAL POSITION ADJUSTMENT

• Enter the Service Mode (Step 1) .
• Select the Geometry Test Pattern shown below (Step 2).
• Select the TVM Function if necessary (Step 3).
• Use the “VIDEO” button to select the specific adjustment, “1.HVPOS”.

Geometry Test Pattern

• After selecting the HVPOS adjustment item, use the DIRECTION ▲▼ / ◄► buttons to center the display.
• If a UP/DOWN <▲▼> button is pressed, the vertical position and VPOS adjustment data changes.
• If a RIGHT/LEFT <◄►> button is pressed, the horizontal position and HPOS adjustment data changes.
• Press <ENTER> to save the adjustment data in memory.
• The display characters go red for approximately one second in this step.

Note: If the circuit adjustment mode is terminated without pressing <ENTER>, changes in adjustment data are not saved.

TSP ALIGNMENT

• Enter the Service Mode (Step 1) .
• Select the TSP Test Pattern shown in the following graphic by pressing PLAY <►> two times, then use FAST FORWARD <►►>or REWIND <◄◄>to select the TSP Test Pattern.
• Select the TVM Function if necessary (Step 3).
• Use the “VIDEO” button to select the specific adjustment, “2.TSP”.
• Use the DIRECTION <▲▼> buttons to straighten the horizontal lines, see below.
• Press <ENTER> to save the adjustment data in memory.  The display characters go red for approximately one second in this step.

TSP Test pattern