1.0 Introduction
1.1 Operation Specification
1.2 Functional Specification
1.3 Control And Adjustment
2.0 Theory Of Operation
2.1 Main Board
2.2 Keypad Board:
CONTENTS
2.3 Inverter Board:
3.0 Troubleshooting Instruction
3.1 No Display, Power Indicator Is Off Or Blinking
3.2 No Display, Power Indicator Is Orange
3.3 No Display, Power Indicator Is Green
4.0 Video Connector Pin Assignment
5.0 Visual Inspection Criteria-LCD Panel
6.0 Spare Parts List
7.0 Circuit Diagram
7.1 Power Distibution
7.2 VGA Input
7.3 ADC
7.4 Damping Network
7.5 Frame Rate Conversion
7.6 ASI 321
7.7 ASI 321 Power & EXT. OSD
7.8 Microcontroller
7.9 Panel Interface
8.0 Layout Diagram
(Vetech Film)
9.0 Parts List
About This Manual
Audience
This service manual is primarily for system engineers, service engineers, dealers and
distributors. It carries the assumption that reader understands the basic operating concepts.
Purpose
This manual contains reference data for LP-10R01 LCD monitor. It gives information
regarding the operating principles of monitors, as well as technical service and maintenance
information.
1.0 Introduction
The LP-10R01 is a high performance 10.4” TFT LCD monitor. This micro-controlled monitor
is designed for continuous operation from 31.5 to 54 KHz and is capable of displaying up to
a resolution of 800 *600 in interface mode. The razor sharp flicker-free image, and the
delicate ergonomic design of this monitor elevate not only productivity but also the user’s
comfort.
1.1 Operation Specification
1.1.1 Operation Environment
Temperature
Operation0 to 40
Storage-20 to 60
Humidity (Relative)
Operation10 to 80% non -condensing
Storage10 to 90% non -condensing
Altitude
Operation0~8000ft
Storage0~40000ft
1.1.2 Safety, Ergonomic, EMC Compliance
This monitor complies with the following safety, ergonomic, and EMC standard
UL: UL1950
TUV-GS: EN60950, ISO -9241-3
FCC : Part 15 Class B
CE : EN55022 CISPR22 Class B, EN55024(EMS), EN60950
1.1.3 Signal Input Requirement
Connector:
15 pin D-Sub high -density connector for video and sync signals. See chapter 4 for
pin assignment.
Video Signals:
Type: Red, Green, Blue channels analog input.
Level: 0.7Vp-p
SUBJECT:
LP-10R01 SERVICE MANUAL
Impedance:75 ohms.
Sync Signals:
Type: Separate Horizontal and Vertical Sync
Level: TTL Level
Polarity: Positive or negative
1.1.4 Power Input Requirement
Operating voltage range
100~240 V AC at 50/60 HZ
Power Consumption
Normal Operation: 18W
Stand by: 2.5W
Suspend mode: 2.5W
Off mode: 2.5W
1.2 Functional Specification
The standard conditions for verifying the following specification are:
Temperature: 25±5
Warm-Up Time: 15 minutes minimum
AC line input: 100~240 V AC±10%, 50 / 60±3Hz
View Distance: 30cm
1.2.1 Display Quality
Display Size (H*Z): 211.2mm*158.4mm
Brightness: more than 120 cd/ m2
Contrast Ratio: 180:1
1.2.2 Color Quality
White Balance (Use full white pattern, set brightness to maximum)
At color temperature of white light CIE9300K+27M..P.C.D
X=0.283±0.02, Y=0.298±0.02
At color temperature of white light CIE6500K+27M..P.C.D
X=0.313±0.02, Y=0.329±0.02
1.3 Control And Adjustment
1.3.1 External User Controls
POWER Power On / Off
MENU OSD Menu On / Off
UP Increase the Value.
DOWN Decrease the Value.
ENTER Confirm the selection
1.3.2 Controlled Functions From OSD Menu
Brightness: Press (+) key to increase brightness, (-) key to decrease brightness.
Contrast: Press (+) key to increase contrast, (-) key to decrease contrast.
Auto Adjust: Press (+) or (-) to adjust H-phase & H-position & V-position clock
automatically.
Phase: By varying this (+)(-) control the exact sampling time within the pixel can
be adjusted.
Clock: Adjust sampling clock of analog to digital converter until clock is equal to
pixel frequency of video input.
H-Position: Press (+) key to shift screen right, (-) key to shift screen left.
V-Position: Press (+) key to shift picture upward, (-) key to shift picture downward.
Sharpness: Press (+) key to increase sharpness, (-) key to decrease Sharpness.
Color Temp: Press (+) or (-) to choose three types of color temperature 9300,
6500 and user define.
Language: Press (+) or (-) to choose any one of the following language, English,
French, German, Italian and Spanish.
OSD: Adjust OSD frame location, timeout, transparency and preset OSD.
Dos-text / graphic: Select display quality (text / graphic) when this monitor be
used in DOS.
Recall: Recall the default value.
1.3.3 Special Functions
Automatic storing: After adjusting the screen parameters, the microprocessor
automatically stores the screen settings in user mode.
Entering factory mode: Press (+) and (-) at same moment before power on, the
monitor will operate in factory mode. In this mode. The value of brightness,
contrast, black-level, red, green, phase, OSD time, color save (color temperature)
are stored as default value. During recall function, these values will be recalled
again.