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PC-UM10M
LL-H1813 WAVE FORM
5 – 1
CHAPTER 5. WAVE FORM
Waveform measurement condition: Input each of the display patterns and measure the waveform (timing chart).
CAUTION
Reception mode: VESA 1280 X 1024
H: 80kHz V: 75Hz DOTCLK: 135MHz
WAVE FORM1 : REFCK (LD500)
Frequency:
60MHz
Display screen: Arbitrary
PV/DIV, 10ns/DIV
WAVE FORM2 : XTAL (2pin of the IC601)
Frequency:
14.318MHz
Display screen: Arbitrary
1V/DIV, 50ns/DIV
WAVE FORM3 : VSYNC (LD304)
Frequency:
75Hz
Display screen: Arbitrary
1V/DIV, 5s/DIV
Wave-form No.
Measurement point
Name of waveform
Display pattern
1
LD500
REFCK
Arbitrary
2
IC601 of 2PIN
XTAL
Arbitrary
3
LD304
VSYNC
Arbitrary
4
LD303
HSYNC
Arbitrary
5
LD510
ICK
Arbitrary
6
LD512
VS
Arbitrary
7
LD513
IHS
Arbitrary
8
IC701 of 10PIN
DCLK
Arbitrary
9
IC701 of 9PIN
DEN
Arbitrary
10
LD300, LD301, LD302
RGB OUT
16 monochromatic gradation patterns
Oscilloscope: LeCroy9362
Input signal:
VESA1280 X 1024
H: 80kHz V: 75Hz
DOTCLK: 135MHz
GND
GND
GND
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