Monday, February 16, 2015

HOW TO ENTER SERVICE MODE MITSUBISHI VS-45609 - VS-50609 - VS-55609 - VS-60609

MITSUBISHI VS-45609 - VS-50609 - VS-55609 - VS-60609

PROJECTION TELEVISION 

SERVICE MODE AND POWER SUPPLY CIRCUIT 

APPLICABLE MODES 
VZ9 MODELS -------VS-45609/ VS-50609/ VS-55609/ VS-60609
VZ9+ MODELS----- VS-60719 / VS-70709

LED Indicator Diagnostics
The “Power ON LED” provides an indication of the sets operation, and the possible cause of a malfunction.
1. Initial Control Circuitry Check
Immediately after the TV is connected to an AC power source:
• The LED flashes three times ... indicating the Microprocessor has initialized and is functioning properly.
• If the LED does not flash ... the Microprocessor is NOT functioning.
2. Error Code Operational Check
Pressing the front panel “INPUT” and “MENU” buttons at the same time, and holding for 5 seconds, activates the Error Code Mode. The LED flashes denoting a two digit Error Code, or indicating no problem has occured since the last Initalization.
Note: The front panel buttons must used, NOT those on the Remote Control.
• 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 “24”, the LED will flash two times, pause, and then flash four times.
3. Error Codes
The Error Code designations indicating a malfunction, or no malfunction, are listed below:
“12” ... indicates no error has occured.
“21 ” ... X-Ray Protect circuit.
“22” ... Short Protect circuit.
“23” ... Horizontal Deflection failure.
“24” ... Vertical Deflection failure.
Circuit Adjustment Mode
Except for the following, all adjustment items must be performed using the remote hand unit.
• Lens Focus
• Electrostatic Focus
A. Activating the Circuit Adjustment Mode ( SERVICE MODE )
1. Press the "MENU" button on a remote hand unit.
2. Press the number buttons "0", "1", "5", "7" in sequence. The screen will change to the Adjustment Mode.

Note: Repeat steps 1 and 2 if the circuit adjustment mode does not appear on screen
B. Selection of adjustment Functions and
Adjustment Items
To select an adjustment item in the circuit adjustment mode, first select the adjustment function that includes the specific adjustment item to be selected. Then, select the adjustment item.
1. Press the "AUDIO" button on a remote hand unit to select an adjustment function. Each time the button is pressed, the Function changes in the following sequence:

2. Press the “VIDEO” button to select a specific Adjustment Item. The Item number increases each time the “VIDEO” button is pressed.
C. Changing Data
After selecting an adjustment Item, use the “ADJUST UP/DOWN” button to change data.
• Press “ADJUST DOWN” to decrease the data value.
• Press “ADJUST UP” to increase the data value.
D. Saving Adjustment Data
Press “ENTER” to save adjustment data in memory. The character display turns 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.
E. Terminating the Circuit Adjustment Mode
Press the “MENU” button on the remote hand unit twice to terminate the adjustment mode.
Note: The circuit adjustment mode can also be terminated by turning power OFF.
Convergence Adjustment Mode
The Convergence mode is used to perform raster geometry correction, and convergence adjustments as specified in Adjustment Procedures 15, 17, 18, 19 and 20.
A. Convergence Mode Activation
1. Press MENU-0-1-5-9
2. When the Convergence Mode is activated, the display at the right appears on a Green Crosshatch.
B. Convergence Mode Functions
In the Convergence Mode there are three main Functions (Categories).
• Pressing “6” activates CONV MISC
• Pressing “5” activates COARSE CONV
• Pressing “4” activates FINE CONV
C. CONV MISC (Press 6)
This mode is used to preset data values controlling the Convergence Generator, and to perform the HV Regulation adjustment.
1. Use the VIDEO button to select an item.
2. Use the ADJUST buttons to change data.
Note: When Item “1 HVOL” is selected the screen goes black except for the data display. This occurs since a black screen is required when making the HV Regulation adjustment.
D. COARSE CONV (Press 5)
There are four Sub Functions in the Coarse mode, COARSE GREEN, COARSE RED, COARSE BLUE and DF.
• COARSE GREEN .... used to make Coarse Raster Geometry Adjustments.
• COARSE RED ... used to make Coarse Red Convergence Adjustments.
• COARSE BLUE ... used to make Coarse Blue Convergence Adjustments.
• DF ... used to preset data values controlling the Dynamic Beam Focus circuit drive signal.
1. Use AUDIO button to select a Sub Function
2. Use the VIDEO button to select an Adjustment Item.
3. Use the ADJUST buttons to change data.
E. FINE CONV (Press 4)
Sub Functions
This mode is used to perform Fine Raster Correction, and Fine Red and Blue Convergence Adjustments.
There are three Sub Adjustment Functions, selected with the AUDIO button:
• FINE GREEN .... a Green Crosshatch is displayed, for Fine Raster Corrections.
• FINE RED .... a White Crosshatch is displayed, for Fine Red Convergence Adjustments.
• FINE BLUE .... a White Crosshatch is displayed, for Fine Blue Convergence Adjustments.
Cursor
In the Fine mode a Cursor is added to the Crosshatch. The ENTER button toggles the Cursor between two modes:
• MOVE (blinking Cursor) .... use the ADJUST buttons to select any of 64 points on the Crosshatch.
• ADJUST (Non blinking Cursor) .... the ADJUST buttons adjust the active color at the current Cursor position, horizontally or vertically.
Cursor Coordinates
Specific intersections in the Crosshatch are assigned vertical and horizontal coordinates. These are shown in the above diagram. The Cursor can only be moved to those positions that have coordinates assigned. If the Cursor is at coordinates outside the screen area, the Cursor will not be visible. Use the ADJUST buttons to move the Cursor to an intersection on the screen.
F. Saving Data and Exiting the Convergence Mode
Press MENU twice to exit the Convergence mode, data is automatically saved.
Note: If power is interrupted prior to properly exiting the Convergence Mode, changes in adjustment data will not be saved.
POWER SUPPLY CIRCUIT 
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