InnoLux MR19 User manual

MR19
Service Manual
- 0 -
Copyright
Copyright 2009 Innolux Display Corp. Ltd
All Rights Reserved
This manual may not, in whole or in part, be copied, Photocopied, reproduced, translated, or converted to any
electronic or machine readable form without prior written permission of Innolux Display Corp. Ltd.
MR19 Wide Service Manual
Service Manual
LCD Monitor MR19

1
1
Table of Contents
Important Safety Notice ......................................................................................02
01 Product Specification .......................................................................................03
02 Flat Panel Specification ....................................................................................29
03 Exploded Diagram ............................................................................................59
04 Troubleshooting..................................................................................................61
05 Spare Parts List .................................................................................................69
06 Schematics and Layouts....................................................................................73
07 Assembly and Disassembly .............................................................................88

MR19
Service Manual
2
Important Safety Notice
1. Safety precautions
This monitor is manufactured and tested on a ground principle that a user’s safety comes first. However,
improper usage or installation may cause damage to the monitor as well as to the user.
Warnings:
zThis monitor should be operated only at the correct power sources indicated on the label on the rear of the
monitor. If you’re unsure of the power supply in you residence, consult your local dealer or Power
Company.
zDo not try to repair the monitor by yourself, as it contains no user-serviceable parts. This monitor should
only be repaired by a qualified technician.
zDo not remove the monitor cabinet. There is high-voltage parts inside that may cause electric shock to
human bodies.
zStop using the monitor if the cabinet is damaged. Have it checked by a service technician.
zPut your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable immediately
and consult your closed dealer.
zAlways unplug the monitor before cleaning it. Clean the cabinet with a clean, dry cloth. Apply
non-ammonia based cleaner onto the cloth, not directly onto the class screen.
zDo not place heavy object on the monitor or power cord.
2. Product safety notice
Many electrical and mechanical parts in this chassis have special safety visual inspections and the
protection afforded by them cannot necessarily be obtained by using replacement components rated for
higher voltage, wattage, etc. Before replacing any of these components read the parts list in this manual
carefully. The use of substitute replacement parts, which do not have the same safety characteristics as
specified in the parts list, may create shock, fire, or other hazards.
3. Service notes
zWhen replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
zKeep wires away from high voltage, high temperature components and sharp edges.
zKeep wires in their original position so as to reduce interference.
zAdjustment of this product please refers to the user’s manual.

MR19
Service Manual
3
01 Product Specification
1. General:
MR19 series LCD monitor is designed with a screen 19” SXGA+ TFT LCD panel, LVDS interface, RGB analog and digital
input(option).
It featured with embedded universal AC power supply. This monitor can support maximum resolution up to 1280x1024@60Hz.
1.1 Main Features
1.1.1 For LGD LM190E08 panel
Features Specifications
Maximum resolution 1280x1024@60Hz
Back light system 2 CCFL
Actual Resolution display SXGA+ resolution(1280x1024)
Pixel pitch 0.294mm(H)x0.294mm(W)
Display area 19.0 inches diagonal
Contrast ratio 500:1(min.),800:1(typ.)10000:1(DCR)
Response time (Tr+Tf) 5ms(Typ.),10ms(Max)
Viewing angle 85°(L)/ 85°(R),75°(U)/85°(D) typ. (CR>=10)
Input interface Analog(D-sub 15pin);
Digital Optional (DVI-D with HDCP function).(option)
Power management Compatible with VESA DPMS, Energy Star
Plug & Play VESA DDC/CI
OSD language .English,French,Italian,Finnish,Spanish,German,Dutch,Russian
1.2 Accessories
Items
AC
Power
Cord
VGA
cable Audio cable DVI_D
Cable(option)
User’s
manual
Warranty
card
Description 1.8m 1.8m 1.8m 1.8m Multi
●●●●●●

MR19
Service Manual
4
2. Operation Specifications
The unit should suffer no visible cosmetic damage and should operate with no degradation in display quality during
exposure to the operating conditions and after exposure to the non-operating conditions, in any sequence.
2.1 Environmental conditions
Operating Specification
Temperature range 0°C to 50°C
Relative humidity 20% to 90%
Altitude 0 to 3048 M (10000 ft)
Storage
Temperature range -20°C to 60°C
Relative humidity 10% to 90%
Altitude 0 to 12192M (40000 ft)
2.2 Safety, EMC, Ergonomics and Compatibility Requirements
Safety & EMC CB, VCCI, FCC-B, CCC, ,MET
Ergonomics MPRII, ISO-13406-2,
Compatibility Windows 98/Me/2000, Windows XP, Window Vista
Power Management Energy Star
2.3 Electrostatic Discharge Requirements
Item Remark Spec
Contact discharge : ±8KV
Electrostatic Discharge
Air discharge : ±15KV
2.4 Reliability
Items Condition Spec Note
CCFL Life time
Temp: 25+/-2℃
Current: 7mA
Brightness: ≥50%
≧50,000 Hours
Excluding the
LCD, CCFL
3. Electrical and Optical Characteristics and Performance
3.1 Main Power Supply
3.1.1 Input characteristics
Items Condition Spec Note
AC Input Voltage range Universal input full range 90~264Vac
AC Input Voltage rating Universal input full range 100~240Vac
AC input frequency range 90~264Vac 47~63Hz

MR19
Service Manual
5
AC input frequency rating 100~240Vac 50~60Hz
100Vac 1.0A
AC Input Current 240Vac 0.6A
115 V AC cold star,25°C <35A
Inrush Current 230 V AC cold star,25°C <70A See Note1
Regulator Efficiency DC output full loading ≥75%
Note 1: Before each test, the buck capacitor needs to be discharged.
Before each test, it must be 10 minutes at least after the latest test.
Hot star not component be damaged.
3.1.2 Output characteristics
Items Condition Spec Note
+14.2 output(PWM mode) <1000mv
+14V output(linear mode) <400mv
+5V output <150mv
Ripple and Noise
audio 5V output <300mv
See note 2
14v loading:0.2A~1.0A
5v loading:0. 5A~1.0A
audio 5v loading:0A~0.8A
VccV:13.5V~16.3V
Vcc5V:4.95V~5.45V
audio 5v:4.5V~5.5V
For system
active
DC Output Voltage 5v loading:0.04A~1.0
A
14V loading: 0A
audio 5v loading:0A
Vcc14V: 13.5V~20V
Vcc5V: 4.85V~5.45V
audio 5v:4.5V~5.5V
For power
saving or DC
off
DC output loading capability Vcc5V/1.6A
Vcc14V/1.0A
audio 5V/0.8A
Rise Time <50mS
Dynamic load change
Hold-up time AC input: 100V~240V >10mS
Overshoot <10%
Turn on delay time <2S
Power management See Table-1
Note 2: Tested by DC loading side parallel with a 47uF/EC and 0.1uF/Ceramic Capacitors and measured band-width with
DC-20MHz.
DC 24V ripple =2400mV when inverter enters Burst Mode.
3.1.3 Protection characteristics
Protection Condition Spec
OPP nominal AC input 37W ( min )
SCP(short circuit protection) Before fuse with auto-recovery function
OVP(Over voltage protection) Auto recovery <output capacitor voltage
Table-1

MR19
Service Manual
6
Status H-sy
nc
V-sy
nc Video Power LED
Power On（with audio）on on active ≤34W Blue
off on blanked < 1W Amber
on off blanked < 1W Amber
Power Saving
off off blanked < 1W Amber
Power Off -- -- -- < 1W Off
3.2 Backlight Power Supply
Items Specification
Panel LGD LM190E08 panel
Lamp 2 CCFL
Input Voltage DC 13.5~16.3 V
Input current 0.8A (Typ.), 1.0A (Max.)
On/Off switch level 5.5V≧Von≧2.0 V (on)
-0.3v ≤Voff ≤0.8 V (off)
Brightness PWM Duty (ACM Off) 30%~100%
Brightness PWM Duty (ACM On) 10%~100%
CCFL operating Voltage 800Vrms (Typ.),
2.0mA (min.)
7.5mA (Typ.)
CCFL Current
8.0 mA (Max.)
CCFL startup voltage ≧1700 Vrms (0˚C)
Operating frequency 40~60KHz
Protect delay time > 1 second
Efficiency ≥70% (Using dummy load)

MR19
Service Manual
7
3.3 Input / Output Signal Specifications
3.3.1 Video signals
Items Condition Spec OK Note
15 pin D-Sub Color: BLACK
Length: 1800 +/- 20 mm ●Monitor side should be
blue right angle.
Signal Cable DVI-D(option) Color: BLACK
Length: 1800 +/- 20 mm
NO DVI cable in carton
Signal type Separate analog R,G,B ●For 15 pin D-sub
Level 700 mV +/- 5% (peak to
peak) ●
Analog
Impedance 75 Ohms +/- 2% Ohms ●
Digital(option) Base on TMDS technology
●
Signal type Separate H/V-sync
(Positive/Negative) ●For 15 pin D-sub
Level Logic High: 2.0V ~ 5.5V
Logic Low: 0V ~ 0.8V
(TTL level)
●Refer to VESA VSIS
Standard V1R1
Sync
Terminal ≧2.2kΩ●2.2KΩfor application
3.3.2 Signal Timing
Through D-SUB and DVI(option) connectors, this unit can support FH= 31~83 KHz, Fv=56~76 Hz.
Modes details as below:
VESA MODES
Horizontal Vertical
Mode Resolution
Nominal
Frequency
+/-0.5KHz
Sync
Polarity
Nominal
Frequency
+/-1Hz
Sync
Polarity
Nominal Pixel
Clock (MHz)
640*480@60Hz 31.469 N 59.941 N 25.175
640*480@72Hz 37.861 N 72.809 N 31.5
VGA 640*480@75Hz 37.5 N 75 N 31.5
800*600@56Hz 35.156 P 56.25 P 36
800*600@60Hz 37.879 P 60.317 P 40
800*600@72Hz 48.077 P 72.188 P 50
SVGA 800*600@75Hz 46.875 P 75 P 49.5
1024*768@60Hz 48.363 N 60.004 N 65
1024*768@70Hz 56.476 N 70.069 N 75
XGA 1024*768@75Hz 60.023 P 75.029 P 78.75
1152*864@75Hz 67.5 P 75 P 108
1280*960@60Hz 60 P 60 P 108
SXGA 1280*1024@60Hz 63.981 P 60.02 P 108

MR19
Service Manual
8
1280*1024@75Hz 79.976 P 75.025 P 135.000
WXGA
WSXGA+
IBM MODES
720x400@70Hz 31.469 N 70.087 P 28.322
MAC MODES
VGA 640*480@66.7Hz 35 P
66.667 N 30.24
SVGA 832*624@74.55Hz 49.722 N 74.55 N 57.283
XGA 1152*870@75Hz 68.681 N 75.062 N 100
Other MODES
WXGA
Note: 1. Non-interlace signals only (An interlace signal cannot be display)
2. Please refer to F/W specification for more detail
3. Each frequency of Power Macintosh and Sun Ultra is a reference value
3.3.3 Timing requirements
Item Condition Specification
Horizontal Sync polarity: (+) or (-) 31~83KHz
Vertical Sync polarity: (+) or (-) 56~76 Hz
Out of range
Excluding Horizontal
(31~83)KHz or
Vertical 56~76 Hz
Message “Frequency out of range” on screen
3.3.4 DDC data
EDID Standard Compliance
EDID File Format : VESA’s EDID Standard Version #3, Revision #0,
EDID Structure : Version #1, Revision #3.
EDID Data Table : See the file of LE19U1-DR4-16
4. LCD Characteristic & Performance
4.1 Panel general specifications
General Specifications
(1) The test methods for the below items’ definition, please refer to the specification of LM190E08-TLJ2 panel
Supplier LG
Model name LM190E08-TLJ2
Display Area 19.0 inches diagonal

MR19
Service Manual
9
Pixel Pitch 0.294mm(H)x0.294mm(W)
Display Colors: 16.7Million (6bit+Hi-FRC)
Number of Pixel 1280x1024 pixels
Pixel Arrangement RGB vertical stripe
Brightness 250cd/m2(Typ.)
Contrast Ratio 800:1 (Typ.)
Viewing Angle Hor:170°, Ver: 160°(Typ)
Brightness Uniformity ≧75%
Display Mode Normally White
Response Time(Tr+Tf) 5ms (Typ.), 10ms (Max.)
Surface Treatment Haze 25%, Hard-coating (3H)
Lamp 2 CCFL
Notes: Other panel source, please refer to the panel specifications.
4.2 Optical characteristic of LCD panel
(1) The test methods for the below items’ definition, please refer to the specification of LM190E08-TLJ2 panel.
Item Unit Conditions Min. Typ. Max. Remark
Viewing Angle [degree]
[degree]
Horizontal (Right)
CR >= 10 (Left)
70
70
85
85
-
-
[degree]
[degree]
Vertical (Up)
CR >= 10 (Down)
60
70
75
85
-
-
Contrast ratio Normal Direction 500 800
Response Time [msec] Rising Time - 1.3 2.6
[msec] Falling Time - 3.7 7.4
[msec] Rising + Falling - 5 10
Color / Chromaticity Red x 0.640
Coordinates (CIE) Red y 0.335
Green x 0.298
Green y 0.608
Blue x 0.147
Blue y 0.070
White x 0.313
Color Coordinates (CIE) White
White y
Typ-0.03
0.329
Typ+0.03
Luminance Uniformity [%] 9 points measurement 75%
White Luminance at
CCFL 6.5mA(center point)
[cd/m2] 200 250 -
4.3Brightness output
The test to verify specifications in this section shall be performed under the following standard conditions unless otherwise
noted.
Temperature : 25 ± 5°C
Test pattern : white
Video Resolution : 1280x1024
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes

MR19
Service Manual
10
Item Condition SPEC
Brightness=100%
Brightness Contrast = 100% ≧200 cd/m2
Brightness=100%
Grey Scale Contrast = 100%
the last 3~8 levels of 32
grey scales is combined
4.4 White balance
The test standard conditions refer to Sec 3.3. (Brightness control is at 100 contrast control is at 50.)
Chromaticity Coordinate
Mode x y
Cool 9300K 0.283 ± 0.030 0.297 ± 0.030
Warm 6500K 0.313 ± 0.030 0.329 ± 0.030
User Panel While x Panel While y
4.5 Brightness uniformity
The test standard conditions refer to Sec 3.4.
%75
≥
)(backlightpointsnineofluminanceMax.
)(backlightpointsnineofluminanceMin. (4)
Fig.3
1 2
5
7 9
L/2 L/10
W/10
W/2
3
4 6
8

MR19
Service Manual
11
4.6 Audio Signal
Items Specification
Input impedance ≧10K ohm
Frequency response range 200Hz –20kHz
Signal to noise ratio ≧40 dB
Output power ≦1 W + 1 W(±20% tolerance), THD 10%.
Loading impedance 4 ohm
Note: The low pass RC Filter (R=100Ω/ C=0.047uF) for Class-D output power and THD+N measurement, and under 1KHz, 1Vrms
and sine wave input.
5. Function Specifications
All the tests to verify specifications in this section shall be performed under the following standard conditions unless
otherwise noted. The standard conditions are:
Temperature : 25 ± 5°C
Warm-up time : 30 minutes minimum
Checking display modes : All the specified modes
5.1 Keypad Function
5.1.1 Control buttons
[AUTO]
A. When OSD un-displays , press [AUTO] to perform auto-adjustment
B. When OSD displays, and the current Menu is Main Menu press [AUTO] to turn off the
Main Menu, or press [AUTO] to return to previous level menu.
[MENU]
A. When OSD isn’t shown on screen, press [MENU] to enter OSD interface.
B. When OSD displays, press [MENU] to perform function of menu icon that is highlight or
enter next level menu, and if the Menu is the last layer of OSD press [MENU] to finish
adjust and turn off Menu.
[＞], [＜]
A. When “MENU OSD” displays, press these keys to change the contents of an
adjustment item, or change an adjustment value.
B. When “MENU OSD” un-displays, press [＜] to show “Audio” OSD, press [＞] to show
“Theme Mode” OSD.
[POWER] Power on or power off the monitor
注：1.if current Menu is Language menu, when you press [MENU] key, it will save your select and return to previous menu. and when you press
[AUTO] key, it will not save your select and return to previous menu.

MR19
Service Manual
12
5.1.2 Hot Key Operation
HOT KEY OPERATION
FUNCTION
AUTO MENU ＜＞POWER
DESCRIPTION
FACTORY
MODE ●
ON
Press [AUTO] at the same time, and then press
[POWER] for DC power on. OSD menu will be
shown with “F”on the left top. Select “F”for
entering factory mode
Volume
●Adjust Volume
Theme Mode
●Select Theme Mode

MR19
Service Manual
13
5.2 OSD Structure
The On-Screen Display (OSD) shall be an easy to use icon based menu through keypad OSD buttons or remote control
unit. The unit shall leave the factory with all OSD controls set to their default values.
Analog:
“Picture” will be the first selected function while user power on main menu.
First Second Third Fourth Control Value Default
Auto
VGA
Input DVI
Audio Volume 50
Brightness 80
Contrast 50
Gamma2.0
Gamma2.2
Picture Gamma
Gamma2.4
Gamma 2.2
H-Position 50
V-Position 50
Clock 50
Geometry
Phase
Warm Default color
Cool
Red 50
Green 50
Customer
Color Blue 50
Movie
Game
Picture
Tint/Hue 50
Saturation 50
Sharpness 50
Enable
Color
Theme Mode
User
Dynamic
Disable
Disable
English
Français
Italiano
Español
Hollands
Русский
Suomalainen
Language
Deutsch
English
Resolution
Reminder
Advanced
Information
EnableReset
Disable
Disable

MR19
Service Manual
14
DVI(option):
If our monitor is in Dual mode, the gray area below will be the function which could not be adjusted.
First Second Third Fourth Control Value Default
Auto
VGA
Input DVI
Audio Volume 50
Brightness 80
Contrast 50
Gamma2.0
Gamma2.2
Picture Gamma
Gamma2.4
Gamma 2.2
H-Position
V-Position
Clock
Geometry
Phase
Warm Default color
Cool
Red 50
Green 50
Customer
Color Blue 50
Movie
Game
Picture
Tint/Hue 50
Saturation 50
Sharpness 50
Enable
Color
Theme Mode
User
Dynamic
Disable
Disable
English
Français
Italiano
Español
Hollands
Русский
Suomalainen
Language
Deutsch
English
Resolution
Reminder
Advanced
Information
EnableReset
Disable
Disable

MR19
Service Manual
15
Theme Mode Brightness Contrast
Movie 100 54
Game 100 58
Picture 100 50
User(After Reset all) 80 50
Remark:
1. Main OSD will Show 10 Second on the Screen，if there is No Operation on the OSD，And ±1 Second is accepted.
2.Gamma 2.0(2.0±0.2), Gamma 2.2(2.2±0.2), Gamma 2.4(2.4±0.2).
3. When dynamic be enabled, after adjusting theme mode/Color Menu, DCR function will be turn off automatically.
5.3 Gateway OSD Message
Item Description
Auto Processing
When User Press Hot-Key “Auto” or use main Menu “Auto processing”
function, will show this message ,and the monitor do the auto process
function.
No Signal
When the video cable is connect, but there is no active signal input, will
show this message, then enter into power saving mode.(will Show 3
seconds)
Frequency out of
range
1. When meet the case as below:
a. Input signal is detected by the system;
b. Input signal is out of the system support rang or supported table which
may have following case:
-input signal is out of the support H or V frequency range;
-input signal is in specified blocked list;
-Input signal is out of the system support specification;
Then will show this message.
2. The menu will be shown as:
a. Move around the full screen;
b. Desktop background in Black;
c. Continue 5 minutes and then step into Power Saving Mode.
Resolution
Reminder
When user entering into “Advanced” menu, user could select “Resolution
reminder” item. After selecting “Resolution reminder”, main menu will show
“Your Computer screen resolution may not match this monitor’s optimum
1600x900 setting. To adjust your screen resolution and see your
computer’s printed or online documentation. Press the AUTO button on the
side of this monitor after adjusting the screen resolution. ”
Information While user entering into “Advanced” menu, user could select “Information”.
Main menu will show “Mode:, Input: , OSD Vers: ,SN ”.
Reset Go to “Main menu” and select “Reset” function. After select “Reset”,
monitor will show a “Reset All” pop up window.
Input Menu
This Menu will Show at the Cases Below(3 Seconds) :
1. AC/DC On;
2. Power Saving On;
3. Burn In On;
4. Switch Source;
5. Plug and pull out Cable.

MR19
Service Manual
16
6. SOP of PCBA ISP Programming
6.1 Operational condition:
Equipment: PC, ISP card, signal cable and power cable.
ESD requirements: antistatic wrists, antistatic gloves(fingers), and connecting cable
Name of ISP program: ISP_Tool_V4.4.2.4
Manufacture of FW IC：PMC/SST/MX
6.2 Operational steps:
1. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state.
2. Adjust ISP programming
Firstly, double click ISP_Tool_ V4.4.2.4 exit and click “Connect ” button; The ISP tool will connect to
monitor automatically, and it will show flash IC type automatically
Signal cable
One port of ISP
program card is
connected to PC
FW IC
Model

MR19
Service Manual
17
Secondly﹐download FW software: first select “READ”, and then load FW software in Rooter
(Fig.2).
Thirdly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will
be prompting if programming is OK.
FW BIN file
Software
Checksum value

MR19
Service Manual
18
◆Note: if programming fails or success rate is not high, click “Config” and adjust its speed to lower
in “I2C Speed Setting”and check Communication Setting. If connect port is print port, please check
port type.

MR19
Service Manual
19
3. Flow Chart