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SERVICE ADJUSTMENTS
BEFORE STARTING SERVICE ADJUSTMENT
1. There ar e 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.
2. The setting (adjustment) using the REMOTE CONTROL
UNIT is made on the basis of th e initial setting values. The
setting values which adjust the screen to the optimum
condition can be differ ent fr om the initial setting values.
3. Make s ure that connection is c orrectly made to AC power
sourc e.
4. Turn on the power of the TV and measuring instrument for
warming up for at least 30 minutes before starting adjustment.
5. If the rec eive or input signal is not specified, use the most
appropriate s ignal for adjustment.
6. Never touch parts (such as variable resistors, transformers and
condensers) not shown in the adjustment items of this servic e
adjustment.
MEASURING INSTRUMENT
AND FIXTURES
1. DC voltmeter (or digital voltmeter)
2. Oscilloscope
3. Signal generator (Pattern generator (Digital & Analog))
[PAL / SECAM / NTSC]
4. Remote control unit
NOTE
This model (AV42PD20ES) consists of a MONITOR and a RECEIVER. However, the MONITOR and RECEIVER c annot be activated
separately. T rying the s eparate ac tivation of the MONITOR or RECEIVER may c ause a trouble. Always try to ac tivate the MONITOR and
RECEIVER as a unit during a s ervic e repair.
7. Preparation for adjustment (pres etting)
Unless otherwis e specified in the adjustment items, preset the
following functions with the REMOTE CONTROL UNIT
USER MENU SETTING
●
Setting Item
ZOOM
PICTURE MODE (VSM)
TINT / CONTRAST / BRIGHT
/ SHARP / COLOUR
SLEEP TIMER
TREBLE / BASS / BALANCE
ECO
ADJUSTMENT ITEMS
< MONITOR >
! Checking item
• Adjustment of POWER VOLTAGE
< RECEIVER >
• Check ing of AFT CW VCO
! VSM pr esetting
• Setting of VSM PRESET
! V/C circu it adjustment
• Adjustment of WHITE BALANCE (High Light)
• Adjustment of SUB BRIGHT
• Adjustment of CONTRAST
• Adjustment of SUB COLOURⅠ
• Adjustment of SUB COLOURⅡ
• Adjustment of SUB HUEⅠ
• Adjustment of SUB HUEⅡ
• Check ing of MAIN COLOUR DECODER VCO
• Check ing of SUB COLOUR DECODER VCO
! DEFLECTION circuit adjustment
• Adjustment of V. POSITION
• Adjustment of V. SIZE
• Adjustment of H. POSITION
• Adjustment of H. SIZE
No. 51955
AV42PD20ES
Setting Position
PANORAMIC
NORMAL
CENTER
OFF
CENTER
OFF
21
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