SERVICE ADJUSTMENTS
BEFORE STARTING SERVICE ADJUSTMENT
1.There are 2 way 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 adjustment with the REMOTE CONTROL UNIT is made on the basis of the initial setting values. The setting values which adjust the screen to its optimum condition may differ from the initial setting values.
3.Make sure that connection is correctly made to AC power source.
4.Turn on the power of the set and equipment before use, and start the adjustment procedures after waiting at least 30 minutes.
5.Unless otherwise specified, prepare the most suitable reception or input signal for adjustment.
6.Never touch any adjustment parts, which are not specified in the list for this adjustment VRs, transforms, condensers, etc.
7.Preparation for adjustment
Unless otherwise specified in the adjustment instructions, preset the following functions with the REMOTE CONTROL UNIT.
User mode position
PICTURE MODE (VSM) | BRIGHT | |
VNR | OFF | |
TINT / COLOUR / BRIGHT | CENTER | |
CONT. / SHARP | ||
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BLUE BACK | OFF | |
OFF TIMER | OFF | |
AI ECO SENSOR | OFF | |
AUTO SHUT OFF | OFF |
MEASURING INSTRUMENT AND FIXTURES
1.DC voltmeter (or digital voltmeter)
2.Oscilloscope
3.Signal generator (Pattern generator) [PAL / SECAM / NTSC]
4.Remote control unit
ADJUSTMENT ITEMS
Ad justment item | Ad justment item |
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B1 POWER SUPPLY | DEFLECTION circuit adjustment |
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FOCUS adjustment | VSM PRESET setting |
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IF circuit adjustment | PURITY/ CONVERGENCE adjustment |
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V/C (Video / Chroma) circuit adjustment |
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No. 52025 | 15 |