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PC-UM10M
CHAPTER 5. WAVE FORM
Waveform measurement condition: Input each of the display patterns and measure the waveform (timing chart).
Wave-form No.
Measurement point
1
LD500
2
IC601 of 2PIN
3
LD304
4
LD303
5
LD510
6
LD512
7
LD513
8
IC701 of 10PIN
9
IC701 of 9PIN
10
LD300, LD301, LD302
CAUTION
Reception mode: VESA 1280 X 1024
H: 80kHz V: 75Hz DOTCLK: 135MHz
Oscilloscope: LeCroy9362
Input signal:
VESA1280 X 1024
H: 80kHz V: 75Hz
DOTCLK: 135MHz
WAVE FORM1 : REFCK (LD500)
Frequency:
Display screen: Arbitrary
PV/DIV, 10ns/DIV
GND
REFCK
XTAL
VSYNC
HSYNC
ICK
VS
IHS
DCLK
DEN
RGB OUT
60MHz
LL-T1820-H/B WAVE FORM
Name of waveform
WAVE FORM2 : XTAL (2pin of the IC601)
Frequency:
Display screen: Arbitrary
1V/DIV, 50ns/DIV
GND
WAVE FORM3 : VSYNC (LD304)
Frequency:
Display screen: Arbitrary
GND
5 – 1
Display pattern
Arbitrary
Arbitrary
Arbitrary
Arbitrary
Arbitrary
Arbitrary
Arbitrary
Arbitrary
Arbitrary
16 monochromatic gradation patterns
14.318MHz
75Hz
1V/DIV, 5s/DIV
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