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LL-T2015-B
WAVE FORM
5 – 1
CHAPTER 5. WAVE FORM
Waveform measurement condition: Input each of the display patterns
and measure the waveform (tinming chart).
and measure the waveform (tinming chart).
Caution:
(1) Probe: TektronixP6139A
(2) Reception mode:
VESA1600 x 1200 H: 75kHz V: 60Hz DOTCLK: 162MHz
WAVE FORM 1: X501 (C504 side)
Frequency: 14.318MHz
Display screen: Arbitrary
WAVE FORM 2: VSYNC (LD206, LC305)
Frequency: 60Hz
Display screen: Arbitrary
WAVE FORM 3: HSYNC (LD205, LD304)
Frequency: 75kHz
Display screen: Arbitrary
WAVE FORM 4: GCLK (LD404)
Frequency: 81MHz
Display screen: Arbitrary
Wave-form
No.
Measurement
point
Name of
waveform
Display pattern
1
X501
(C504 side)
(C504 side)
X501
Arbitrary
2
LD206, LC305
VSYNC
Arbitrary
3
LD205, LD304
HSYNC
Arbitrary
4
LD404
GCLK
Arbitrary
5
LD401
GVS
Arbitrary
6
R569, R570
GHS
Arbitrary
7
LD529
DCLK
Arbitrary
8
LD530
DEN
Arbitrary
9
LD301, LD302,
LD303
LD303
RGB OUT
16 monochromatic
gradation patterns
gradation patterns
Oscilloscope: Tektronix644B
Input signal:
VESA1600 x 1200
H: 75kHz V: 60Hz
DOTCLK: 162MHz
2V/DIV, 50ns/DIV
GND
1V/DIV, 5ms/DIV
GND
1V/DIV, 5
µ
s/DIV
GND
1V/DIV, 5ns/DIV
GND
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