Tuesday, November 17, 2015

MITSUBISHI ELECTRIC L65-A90 LASERVUE PROJECTION HDTV TV ERROR CODES SERVICE MODE AND SERVICE MODE ADJUSTMENTS

MITSUBISHI ELECTRIC L65-A90

LASERVUE PROJECTION HDTV 

ERROR CODES SERVICE MODE AND SERVICE MODE ADJUSTMENTS 

OPTION MENU
1. Press the <MENU> button on the remote control.
2. Press the buttons<2-4-7-0>.
(The screen will display the Option Menu.)
DIGITAL SIGNAL STRENGTH
1. Tune to a Digital Channel.
2. From the Option Menu scroll down and highlight Digital Signal Strength.
3. Press <ENTER>.
SERVICE TIP
Many customer generated symptoms, intermittent symptoms or no symptom found can be resolved by using the various Reset and Initialization options. Before visiting the customer’s home ask the customer 1st to try the System Reset button on the control panel and if this does not resolve the issue, then they can perform an A/V Reset by pressing the Guide + Format buttons on the front panel at the same time. Then, if necessary, perform a user level Initialization by pressing MENU-123-ENTER with the remote. The customer should be made aware when settings and/or options will be reset.
A/V MEMORY
Each of the external inputs has it’s own Audio/Video Memory. A change in an A/V setting at a specific input is stored in memory for that specific input.
A/V RESET
1. Press the front panel <GUIDE> and <FORMAT> buttons at the same time to initialize the A/V Memory for all inputs.
2. The AV Reset in the user’s menu initializes only the selected input’s A/V Memory
ERROR CODE OPERATIONAL CHECK
When an abnormal condition is indicated by the Status LED, 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.
ERROR CODE TABLE 
Error Code
Description
12

No serious error since last main power on or last micro
initialization, or no errors in the error code history list.
13
Cover-4 (Light Source Assembly) is open.

14



If this is detected immediately after AC is applied,
Standby Power supply short is detected.
If this is detected after POW-ON from standby,
Power supply (SPA3.3V) short is detected.

16
LAMP-EN doesn’t output from engine to TV micro
17
Engine I2C bus communication error is detected
18
ASIC-ready from engine is not detected.
19


Fiber Optic Cable disconnected
Or SENSOR-RGB Data is out of limits.**

23
Cover-1 (bottom rear cover) is open.
25
Excessive temperature within Light Source
26
Laser FAN1 or 2 stop
29
Internal communication error Laser micro
37
DMD-FAN stops.
38
Laser unit temperature is abnormally high.
39
Abnormal low ambient temperature within Light source
44
DVI cable is disconnected.
45
Diffuser motor stops.
46
Fiber temperature is abnormally high.
48
P-ON short
49
Laser abnormal brightness
56
FPGA communication error with laser micro
57
Communication error between TV micro and Laser micro
58
Power supply short in Laser unit
67
Linear motor 1 or 2 abnormal
68

Cover-3 (top rear cover) is open.

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.
NOTE: 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 ADJUSTMENTS 
There are 2 types of Service Adjustments required in this model, Electrical and Mechanical:
Electrical Adjustments
# Horizontal and Vertical Centering
# TSP Alignment
# 16 Point Keystone Alignment
# 4:3 Geometry
# Letterbox Geometry
Mechanical Adjustments
# ASP Mirror Alignment
Measuring Equipment and Jigs
# Remote Control. No other Test Equipment is required.
Test Signals
# Internally generated Test Signals are used. No additional external signals are required.
NOTE: Except when specified, the receiver should be fully assembled for all Service Adjustments.
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.
1. 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.
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.
3. Adjustment Function Selection
Use the “AUDIO” button to select a specific Adjustment Function.
NOTE: There are 2 Service Functions on these models: “TVM” and the “ASIC” function. Service adjustments are performed in the (default) TVM mode.
4. Horizontal and Vertical Position Adjustment
1. Enter the Service Mode (Step 1) .
2. Select the Geometry Test Pattern shown below (Step 2).
3. Select the TVM Function if necessary (Step 3).
4. Use the “VIDEO” button to select the specific adjustment, “1.HVPOS”.
5. 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.
6. 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.
5. TSP Alignment
1. Enter the Service Mode.
2. Select the TSP Test Pattern shown in the following graphic by pressing PLAY <Z> two times, then use
FAST FORWARD or REWIND  to select the TSP Test Pattern.
3. Select the TVM Function if necessary (Step 3).
4. Use the “VIDEO” button to select the specific adjustment, “2.TSP”.
5. Use the DIRECTION  buttons to straighten the horizonal lines,.
6. Press <ENTER> to save the adjustment data in memory.
The display characters go red for approximately one second in this step.
Manual Keystone Geometry Alignment
Note: If the upper left or right corner geometry is skewed in or out, perform the ASP Mirror Adjustment first.
Note: If only minor edge geometry correction is required, proceed to Phase 3, Keystone Geometry Touchup.
1. Activate the Service Mode <MENU><2-4-5-7>. From the Service Menu, press the <0> button. The Data Selection Menu will appear.
2. Use the <UP/DOWN> buttons to select “MANUAL KEYSTONE GEOMETRY ALIGNMENT” and press <ENTER>. The Manual Keystone Geometry Alignment Pattern will appear. See next page.
3.
Perform a reset - Press <1> then <ENTER>. This will null all correction data. Then re-enter the Manual Keystone Geometry Alignment mode by repeating step 2.
Note: To restore the original factory correction data, select “RESTORE KEYSTONE GEOMETRY FROM BACKUP” and press <ENTER>.
Phase 1 - Cursor Position
1. 16 Adjustment Points are indicated by white dots around the edge of the raster. The adjustment position is indicated by a + cursor.
2. Starting from the upper left corner, use the <LEFT/RIGHT/UP/DOWN> buttons to align the + at each point in a straight line, flush with the bezel as a reference. See example above.
Note: Only the cursor will move. The Geometry Pattern will not change.
3. After adjusting each point, use the <FORWARD> button to shift the cursor to the next point clockwise and repeat until all 16 points have been adjusted.
4. After all 16 points are adjusted and the cursor is returned to the original starting point, press <ENTER>. Correction will be automatically calculated and saved and the Manual Keystone Geometry Alignment will be terminated.
5. Press <ENTER> to re-activate the Manual Keystone Geometry Alignment. The keystone geometry pattern will appear with the corrections applied.
Phase 2 - 4:3 and Letterbox Alignment
1. With the Manual Keystone Geometry Alignment activated, press <VIDEO> to enter the 4:3 Alignment Mode.
The pattern will be displayed starting with the Left Blue 4:3 Line. Press <VIDEO> again for the Right Blue Line.
2. In the 4:3 Alignment Mode, continuing to press <FORWARD> will cause the geometry pattern to be displayed with 11 different preset amounts of correction. Continue pressing <REWIND> or <FORWARD> to cycle through the 11 patterns until you find the one with the straightest 4:3 Mode Line. It may help to count the patterns as you cycle through them. When you find the pattern with the straightest Left Blue 4:3 Line, press <VIDEO>. The pattern with the Right Blue 4:3 Line will be displayed. Repeat the procedure. Press <VIDEO> again and the Top Letterbox Alignment Mode will then be activated as indicated by the Top Red Letterbox Line displayed in the pattern.
3. In the Top Letterbox Alignment Mode, continuing to press <FORWARD> will cause the geometry pattern to be displayed with 15 different preset amounts of correction to the Top Red Letterbox Line. Continue pressing <REWIND> or <FORWARD> to cycle through the 15 patterns until you find the one with the straightest Top Red Letterbox Line. Again, count the patterns as you cycle through them. When you find the pattern with the straightest line, press <VIDEO>. The Bottom Letterbox Alignment Mode will then be activated as indicated by the Bottom Red Letterbox Line displayed in the pattern.
4. In the Bottom Letterbox Alignment Mode, continuing to press <FORWARD> will cause the geometry pattern to be displayed with 10 different preset amounts of correction to the Bottom Red Letterbox Line. Continue pressing <REWIND> or <FORWARD> to cycle through the 10 patterns until you find the one with the straightest Bottom Red
Letterbox Line. Again, count the patterns as you cycle through them. When you find the pattern with the straightest line, press <ENTER> to exit and save the 4:3 and letterbox data.
5. Select the Geometry Test Pattern.If Keystone Geometry is acceptable, press <EXIT> to quit. To touch-up the raster geometry, proceed.
Phase 3 - Keystone Geometry Touch-up
1. Enter the Manual Keystone Geometry Alignment
2. Use the <REWIND> or <FORWARD> button to shift the cursor to the point needing correction.
3. Use the <LEFT/RIGHT/UP/DOWN> buttons to indicate the direction and amount of correction necessary at the particular point. Note: Only the cursor will move. The Geometry Pattern will not change.
4. Press the <INFO> button to apply the correction. The Geometry Pattern will now show the correction.
5. Repeat steps 2, 3 and 4 as needed.
6. Press <ENTER> to save your changes. The Manual Keystone Geometry Adjustment will be terminated.
7. Press <EXIT> to exit the alignment mode.