Service manual

LC-40E67U/LC-40E77U
5 – 22
6. Video signal adjustment procedure
6.1. AD TRANSFORM LEVEL Adjustment
6.1.1 Input 1080i signal
1. Input 1080i color bar signal.
Signal generation: LEADER LT448
Signal: color BAR.
Setting: 02: 1080i/59.94 (30sf)
H: 33.72 KHz V: 29.97Hz
NOTE: Please use the third color Bar of LT448 generator.
2. Adjusting AUTO GAIN-OFFSET in page 4 of DVP3 (M2-HD) to RUN.
When “AUTO GAIN-OFFSET OK” appears, this adjustment is complete.
6.1.2 Input 480i signal
1. Input 480i color bar signal.
Signal: color BAR.
Setting: 15: 480i/60
H: 15.73 KHz V: 29.97Hz
NOTE: Please use the third color Bar of LT448 generator.
2. Adjusting AUTO GAIN-OFFSET in page 5 of DVP4 (M2-SD) to RUN.
When “AUTO GAIN-OFFSET OK” appears, this adjustment is complete
6.1.3 Input PC XGA signal.
1. Input XGA color bar signal (RGB)
Signal generation: LEADER LT448
Signal: color BAR (SATURATION 75%)
Setting: 28: XGA
H: 48.36KHz V: 60Hz
SYNC: OFF
NOTE: Please use the color Bar of SATURATION.
2. Adjusting AUTO GAIN-OFFSET in page 6 of DVP5 (M2-PC) to RUN.
When “AUTO GAIN-OFFSET OK” appears, this adjustment is complete.
NOTE: If want to set all item to ON, please set to RUN in ADJUST PROCESS.
6.2. TEMP Adjustment
6.2.1 Receive US-10ch(JPN-8ch) the standard color bar signal
6.2.2 See if the “YDATA” reading (maximum) on Adjustment Process Page 1 is within the range in the follow table. If not,
adjust the “TEMP ALL” setting on the same page to have the “YDATA” reading (maximum) within this range.
Refines
(Adjustment Process Menu Page 1)
MODEL
SETTING VALUE (NTSC) 163-170
01234567891011121314151617181920212223242526
0DVP1
1TAMP1L 163
2YDATA 98
3TAMP1H 170
4TAMPALL OFF
5NTSCTAMP1 77
6PAL–MTAMP 64
7PAL–NTAMP 64