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ViewSonic Corporation
Confidential - Do Not Copy
VP2650wb-1
28
C. ADC calibration (Auto color balance adjustment)
~~Analog only, it is not required for DVI-D input source
1. Setup input timing VGA480 (640x480@60Hz), pattern 42(5-Mosaic pattern) with white
color frame with Analog signals from Chroma video pattern generator.
2. Enter factory mode (first press “2”and then press “[ ]” button to turn on monitor).
3. Setup color at User color and “Burn in mode” =“ON”
4. Press“ Auto” button to do white balance for auto color balance adjustment (will get
optimal gain / offset (clamp) values).
5. Checking if the picture is ok, or reject this monitor and check its circuit board or
wire/cable connection.
D. Color temperature adjustment
1. Setup input timing to any preset modes, pattern 41(full white color pattern) with Analog
signals from Chroma video pattern generator.
2. Enter factory mode (first press
“2”
and then press
“[ ]”
button to turn on monitor).
3.
Setup color at
User color
and
“Burn in mode” =“ON”
4. Make sure ADC calibration (auto color balance adjustment) had already been done.
5. First measure every Monitor native color temp. Luminance at Brightness and Contrast
(100/100) condition, so that other color temp. luminance can adjust by below condition.
Lv (Max) –Condition:
Brightness = 100 / Contrast = 100
CCT = USER COLOR (R/G/B=100%)
Lv (Max) = The Luminance requirement of section 4-8
“TFT LCD PANEL”
Lv (Srgb) –Condition:
CCT = sRGB
120 ~ 150 nits
Lv (6500K) –Condition:
Brightness / Contrast = Default (100/70)
CCT = 6500K
Lv (6500K) / Lv (Max) x 100% > 85%
Lv (9300K) –Condition:
Brightness / Contrast = Default(100/70)
CCT = 9300K
Lv (9300K) / Lv (Max) x 100% > 65%
Lv (7500K) –Condition:
Brightness / Contrast = Default(100/70)
CCT = 7500K
Lv (7500K) / Lv (Max) x 100% > 75%
Lv (5000K) –Condition:
Brightness / Contrast = Default(100/70)
CCT = 5000K
Lv (5000K) / Lv (Max) x 100% > 75%
Lv (Brightness) –Condition:
Contrast = 100%
Lv(Brightness=0%) / Lv(Brightness=100%) x 100%
55%
Lv (Contrast) –Condition:
Lv(Contrast=0%) / Lv(Contrast=100%) x 100%
30%
Summary of Contents for VP2650WB - 26" LCD Monitor
Page 42: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 39 Step4 Step 5 Step 6 ...
Page 43: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 40 Step 7 Step 8 Step 9 ...
Page 44: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 41 Step 10 Step 11 ...
Page 51: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 48 4 Packing procedure ...
Page 53: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 50 6 Troubleshooting Flow Chart ...
Page 54: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 51 ...
Page 55: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 52 ...
Page 56: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 53 5 Power no work troubleshooting ...
Page 57: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 54 Power no PFC troubleshooting ...
Page 58: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 55 6 Transmitter Board ...
Page 76: ...9 PCB Layout Diagrams ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 73 ...
Page 77: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 74 ...
Page 78: ...ViewSonic Corporation Confidential Do Not Copy VP2650wb 1 75 ...
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