MEMORY REPLACEMENT
- Power off
- Switch off the power and disconnect the power plug from the AC outlet.
- Replace the memory IC. Be sure to use the memory IC written with the initial setting values.
- Power on. Connect the power plug to the AC outlet and switch on the power.
- System constant check and setting. * It must not adjust without signal.
- Press the [INFORMATION] key and the [MUTING] key of the REMOTE CONTROL UNIT simultaneously.
- The SERVICE MENU screen will be displayed.
- While the SERVICE MENU is displayed, press the [INFORMATION] key and [MUTING] key simultaneously, and the SYSTEM CONSTANT SET screen will be displayed.
- Check the setting values of the SYSTEM CONSTANT SET. If the value is different, select the setting item with the [FUNCTION UP/DOWN] key, and set the correct value with the [FUNCTION -/+] key.
- Press the [MENU] key to memorize the setting value.
- Press the [INFORMATION] key twice, and return to the normal screen.
SYSTEM CONSTANT SETTINGS
ADJUSTMENTS
- There are 2 ways of adjusting this TV : One is with the REMOTE CONTROL UNIT and the other is the conventional method using adjustment parts and components.
- The adjustment using the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting values which adjust the screen to the optimum condition can be different from the initial setting values.
- Make sure that connection is correctly made AC to AC power source.
- Turn on the power of the TV and measuring instruments for warning up for at least 30 minutes before starting adjustments.
- If the receive or input signal is not specified, use the most appropriate signal for adjustment.
- Never touch the parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service adjustment.
PRESET SETTINGS BEFORE ADJUSTMENT
Unless otherwise specified in the adjustment
items, preset the following functions with the REMOTE CONTROL UNIT.
ADJUSTMENT ITEMS
CHECK ITEM
- B1 POWERSUPPLY check
- HIGH VOLTAGE check
- IF VCO check
FOCUS
- FOCUS adjustment
DEFLECTION CIRCUIT
- V.POSITION adjustment
- V.SIZE adjustment
- H. POSITION adjustment
- H.SIZE adjustment
- SIDE-PIN adjustment
- TRAPEZIUM adjustment
- CORNER adjustment
- ANGLE adjustment
- BOW adjustment
- V.S-SHAPE CORRECTION & V.LINEARITY adjustment
VIDEO CIRCUIT
- WHITE BALANCE adjustment
- SUB BRIGHT adjustment
- SUB CONTRAST adjustment
- SUB COLOUR l adjustment
- SUB COLOUR ll adjustment
- SUB HUE l adjustment
- SUB HUE ll adjustment
VSM PRESET SETTING
- VSM PRESET setting
SERVICE MENU FLOWCHART
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