Adjustment - JVC LT-19DA9 Series Service Manual

4.1 ADJUSTMENT PREPARATION
(1) This TV is adjusted by using REMOTE CONTROL UNIT.
(2) 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.
(3) Make sure that connection is correctly made AC to AC power source.
(4) Turn on the power of the TV and measuring instruments for warming up for at least 30 minutes before starting adjustments.
(5) If the receive or input signal is not specified, use the most appropriate signal for adjustment.
(6) Never touch the parts (such as variable resistors, transformers and condensers) not shown in the adjustment items of this service

adjustment.

4.2 PRESET SETTING BEFORE ADJUSTMENTS
Unless otherwise specified in the adjustment items, preset the
following functions with the REMOTE CONTROL UNIT.
Setting item
Picture Mode
Colour Temperature
4.4 ADJUSTMENT ITEMS
VIDEO CIRCUIT
• WHITE BALANCE adjustment
4.5 BASIC OPERATION OF FACTORY MODE
4.5.1 HOW TO ENTER THE FACTORY MODE
(1) Press [INFORMATION] key and [MUTING] key on the
remote control unit simultaneously to enter the FACTORY
MODE SCREEN-1. (Fig.4-1)
(2) Press [ ] key on the remote control unit simultaneously to
enter the FACTORY MODE SCREEN-2. (Fig.4-1)
4.5.2 HOW TO EXIT THE FACTORY MODE
Press the [OK] key to exit the factory mode.
SECTION 4
ADJUSTMENT
Settings position
Standard
Normal
4.3 MEASURING INSTRUMENT AND FIXTURES
• Signal generator (Pattern generator)[PAL]
• Remote control unit
FACTORY MODE SCREEN-1
Press [ ] key
FACTORY MODE SCREEN-2
DO NOT ADJUST
Service Service
Hardware Ver : REV X.X Hardware Ver : REV X.X
Sub MCU SW Ver : REV X.X Sub MCU SW Ver : REV X.X
ATV SW Ver : XXXXXX X.XX.XX ATV SW Ver : XXXXXX X.XX.XX
DTV SW Ver : XXXXXX X.XX.XX DTV SW Ver : XXXXXX X.XX.XX
Sub MCU Loader Ver : XX.XX Sub MCU Loader Ver : XX.XX
DTV Loader Ver : XX.XX DTV Loader Ver : XX.XX
ATV Loader Ver : X. X. X ATV Loader Ver : X. X. X
System ID : XXXX.XXXX System ID : XXXX.XXXX
Update Date : XXXX XX XXXX Update Date : XXXX XX XXXX
Right:Enter Right:Enter Back:Return Back:Return Exit:OK Exit:OK
Video Setup Video Setup
White Balance White Balance
Spread Spectrum Spread Spectrum
Panel Select Panel Select <XXXXX> <XXXXX>
Reset TV-set Reset TV-set
Factory Default Factory Default
Right:Enter Right:Enter Back:Return Back:Return Exit:OK Exit:OK
Fig.4-1
(No.YA606<Rev.002>)1-15