1. Product Specification (continued)
Pin 5 Red-Video Green-Video Blue-Video NC Connection Detect Signal Pin 10 Red-GND Green-GND Blue-GND + 5V GND Signal Pin 15 NC DDC-SDA H-SYNC V-SYNC DDC-SCL Signal
Symbol Fh Fv Vih Vil Video
Item Horizontal Frequency Vertical Frequency Hi Level Input Low Level Input RGB Analog Video Level

Min Normal 2.0.0 0.7

Max 5.0 0.8 0.1
Unit Remark kHz Minimum range Hz V V V Minimum range Note 1) Note 1) 75 to Ground
Connector Pin Description D-SUB Description
Pin 15 Red-Video Green-Video Blue-Video NC Connection Detect Red-GND Green-GND Blue-GND +5V Sync-GND NC NCDDC-SDA H-SYNC V-SYNC DDC-SCL Name Red video signal input Green video signal input Description
Note 1) Schmitt-Triggers Input, Supported 3.3V device H(&V) sync output from PC
V id e o I n p u t S ig n a l
Blue video signal input Not connect Deteck VGA Cable have Connected or not Analog signal ground for the Red video Analog signal ground for the Green video Analog signal ground for the Blue video +5V input from host system for the VESA DDC 2Bi function Signal ground Not connect SDA signal input for the VESA DDC 2Bi function Horizontal signal input from the host system Vertical signal input from the host system SCL signal input for the VESA DDC 2Bi function
Sym bol Fh Fv V ih V il V id e o
Ite m S c a n n in g H o r iz o n ta l F r e q u e n c y S c a n n in g V e r tic a l F r e q u e n c y H i L ev el In p u t L o w L ev el In p u t R G B A n a lo g V id e o L e v e l

M in 0.0

N orm al

M ax 5 0.8

U n it kH z Hz
R em ark M in im u m r a n g e M in im u m r a n g e N o te 1 ) N o te 1 ) to G r o u n d
N o te 1 ) S c h m itt- T r ig g e r s I n p u t , S u p p o r te d 3.3 V d e v ic e H ( & V ) s y n c o u tp u t fr o m P C.
1.3.2.1 Video Signal Amplitudes The three video inputs consist of Red ,Green , and Blue signals, each with its own coaxial cable terminated at the monitor. These video signals are analog levels, where 0 V corresponds to black , and 700 mV is the maximum signal amplitude for the respective color, when each signal is terminated by a nominal 75.0 ohms.For a given monitor luminance levels are measured using this defined video amplitud driving a monitor meeting the termination requirements.The signal amplitude is not to be readjusted to compensate for variations in termination impedance. 1.3.2.2 Video Signal Termination Impedance This analog video signal termination shall be 75+/-1% which shall be resistive with a negligible reactive

Desription Hot plugging TMDS link #0 change #1 differential pair pair
DVI-I/DVI-D(If using DVI-D cable,C1,C2,C3,C4,C5 is NC)
Pin Signal RX2RX2+ GND NC NC SCL SCA Analog V-Sync(NC) RX1RX1+ GND NC Pin Signal NC 5V DVI Connect HP RX0RX0+ GND NC NC GND RXC+ RXCPin C1 C2 C3 C4 C5 Signal Analog Red(NC) Analog Green (NC) Analog Blue (NC) Analog H-Sync (NC) GND

DVI-I/DVI-D

Description Pi

Pin 15

Name RX2RX2+ GND NC NC SCL SDA
Desription TMDS link #0 channel #2 differential pair TMDS link #0 channel #3 differential pair GND for no link share NC NC Clock line for DDC interface Data line for DDC interface
n Name 16 HP 17 RX018 RX0+ 19 GND 20 NC 21 NC 22 GND 23 RXC+ pair pair 24 RXCC1 Analog Red C2 Analog Green C3 Analog Blue
component. 1.3.2.3 Synchronization ( Sync ) Signals The Horizontal Sync (HS) TTL signal is used to initiate the display of a horizontal line. HS may be either active high or active low, depending upon the timing.The Vertical Sync (VS) TTL signal is used to initiate the display of a new frame.VS may be either active high or active low, depending on the timing 1.3.2.4 Sync Signal Levels The monitor must accept sync signals from both 3.3 and 5 volt TTL logic families.The inputs shall sense a logic 0 when the input is 0.8 volt or less and shall sense a logic 1 when the input is 2.0 volts or greater. In addition to these level requirements, there shall also be a minimum
TMDS link #0 change #1 differential GND for no link share NC NC Clock shield TMDS clock differential pair TMDS clock differential pair Analog Red signal Analog Green signal Analog Blue signal
Analog V-Sync V-sync for analog interface RX1RX1+ GND NC NC 5V DVI Connect TMDS link #0 change #1 differential TMDS link #0 change #1 differential GND for no link share NC NC +5V input from host system for Using as Detect Cable DDC 2B function
C4 Analog H-Sync H-Sync for analog interface C5 Analog GND Analog GND
1.3.1.3 Audio Jack (option) This jack shall connect the audio input from host computer. 1.3.2 Video Input Signals Video Input Signal Ranges
of 0.3 volt hysteresis provided for noise immunity (typically by using a Schmitt Trigger input ).That is , the input level at which the monitor actually detects a logic 0 shall be at least 0.3 volt lower than the level at which it actually detects a logic 1.If the monitor sync processing circuits are designed around the 3.3 volt logic family ,then the sync inputs must be 5 volt tolerant.

NOTE : OSD MENU SEE APPENDIX A
1.3.4 Monitor Modes and Timing Capability 1.3.4.1 Format and Timing The monitor shall synchronize with any vertical frequency from 56 to 75 Hz , and with any horizontal frequency from 31 to 83KHz. If the input frequency is out of the above specified range, the monitor shall display a warning screen indicating that the input frequency is out of range. Under no circumstances shall any combination of input signals cause any damage to the monitor. 1.3.4.2 Factory Assigned Display Modes There are 21 factory pre-set frequency video modes. These modes have a factory pre-set for all characteristics affecting front-of-screen performance. When the system is poweredon,previously stored screen parameters for a predefined mode will be recalled if the operating mode is one of those stored in memory. If the operating mode is not one of those stored in memory, the monitor CPU will select the PRESET timing for a mode that is the next lowest in horizontal scanning frequency to the mode being currently used. The screen parameters may be adjusted by the use of the front bezel controls and then may be saved as a user defined mode. The
O SD m enu on th e sc re e n.
1.3.3.3 On-Screen Display The Lite-ON On Screen Display system shall be used , controlled by a Menu button. If the buttons remain untouched for OSD turn off time while displaying a menu , the firmware shall save the current adjustments and exit. Also, if the video controller changes video mode while the OSD is active, the current settings shall be saved immediately, the OSD turn off, and new video mode is displayed.

D e s c rip tio n

K ey M EN U W hen M enu no O SD d is p la y O SD 1. To D is p la y e d d is p la y th e

D is p la y

2. T o s e le c t th e O S D s u b -M e n u S p e a k e r V o lu m e /M in u s (w ith A u d io ) S p e a k e r V o lu m e /P lu s (w ith A u d io ) A u to A d ju s t F u n c tio n 1. F o rw a rd 2. In c re a se s e le c tio n o f th e O S D m e n u. th e v a lu e a fte r s u b -m e n u s e le c te d.
monitor shall include all the preset video timings shown in the following page.(Please see Note.(3) )

> < A u to E

1. B a c k -fo rw a rd s e le c tio n o f th e O S D m e n u. 2. D e c re a s e th e v a lu e a fte r s u b -m e n u s e le c te d. M e n u o r s u b.m e n u E X I T /A u to A d ju s t f u n c tio n. M e n u o r s u b.m e n u E X I T /S c e n a r io m o d e

Viewing distance is to be approximately 35-50cm Ambient illumination is to be 300 to 700 lux. Viewing angle shall be at 90 degree. Defects not apparent within one minute shall be

ignored.

1.4.5.5 Defect Terminology Table 3 gives the descriptive terms used in classifying defects.
D a rk / S p o ts / L in e s S p o ts o r lin e s th a t a p p e a r d a rk in th e d is p la y p a tte rn s a n d a re u s u a lly th e re s u lt o f c o n ta m in a tio n. D e fe c ts d o n o t v a ry in s iz e o r in te n s ity (c o n tra s t) w h e n c o n tra s t v o lta g e is v a rie d. C o n tra s t v a ria tio n c a n b e a c h ie v e d th ro u g h th e u s e o f v a ry in g g ra y s h a d e p a tte rn s. S p o ts o r lin e s th a t a p p e a r lig h t in th e d is p la y p a tte rn s. D e fe c ts d o n o t v a ry in s iz e o r in te n s ity (c o n tra s t) w h e n c o n tra s t v o lta g e is v a rie d. C o n tra s t v a ria tio n c a n b e a c h ie v e d th ro u g h th e u s e o f v a ry in g g ra y s h a d e p a tte rn s. W h e n th e u n it lig h ts , lin e s a p p e a r lig h t (w h ite ) w ith d is p la y p a tte rn s d a rk a n d d o n o t v a ry in s iz e. P h y s ic a l d a m a g e to th e p o la riz e r th a t d o e s n o t d a m a g e th e g la s s W h e n th e u n it lig h ts , s p o ts a p p e a r lig h t (w h ite ) w ith d is p la y p a tte rn s d a rk a n d d o n o t v a ry in s iz e. P h y s ic a l d a m a g e to th e p o la riz e r th a t d o e s n o t d a m a g e th e g la s s. H o riz o n ta l o r d ia g o n a l lin e s th a t a p p e a r g ra y w ith th e d is p la y p a tte rn s d a rk a n d m a y h a v e re s u lte d fro m a n o u t o f c o n tro l ru b b in g p ro c e s s o n th e p o ly im id e o r w a v e s o n th e B E F s o r p ris m s h e e ts. T h e ra in b o w e ffe c t c a u s e d b y n o n -u n ifo rm c e ll th ic k n e s s. W h e n th e u n it lig h ts , v a ria tio n / n o n u n ifo rm ity (s p lo tc h in e s s ) a p p e a rs lig h t (w h ite ) w ith th e d is p la y a n d m ig h t v a ry in s iz e. W h e n th e u n it lig h ts , lin e (s ) in th e m o n ito r (v e rtic a l) o r m a jo r (h o riz o n ta l) a x is a p p e a r d im , b u t n o t c o m p le te ly o n o r o ff. W h e n th e u n it lig h ts , lin e s in b o th th e m in o r a n d m a jo r a x is d o n o t a p p e a r. A s u b p ix e l (R ,G ,B d o t) s tu c k o ff / o n (e le c tric a l).
1.5 Optical Characteristics Depends on the LCD supplier's spec. Details refer to QA Inspection Spec.
B rig h t S p o ts / L in e s
P o la riz e r S c ra tc h

P o la riz e r D e n t

R u b b in g L in e N e w to n R in g M o ttlin g D im L in e C ro s s L in e s O ff B rig h t / D a rk D o t

1.4.5.6 Smudges, Streaks and Smears When viewing the panel oriented so as to maximize reflected light , there shall be no visible smudging , streaking, smearing or other nonuniformity from contaminants ,fingerprints,or defects in any of the visible surfaces. This is independent of whether the unit is operating or off. 1.4.5.7 Other Defects Undefined defects that are considered to be rejectable by LiteOn will be reviewed by Lite-On as they become apparent. These panels will be referred to the Lite - On Corporate / Manufacturer Purchasing Agreement for disposition. 1.4.5.8 LCD Inspection Put LCD panel on inspection table and illuminate the panel with a daylight fluorescent lamp located above the panel surface such that the luminance at the LCD panel is between 1000 lux and 1500 lux.Defect limits are given in Table 4.
Average Diameter smaller of (L+W)/2 or L/20+2W

Acceptable Number

Minimum Separation
< 0.1mm Non countable N/A 0.1 mm ~ 0.3 mm mm 0.31 mm ~ 0.5 mm mm 0.51 mm ~ 1.25 mm mm 1.26 mm ~ 2.5 mm 3 25.4 mm 2.51 mm ~ 3.75 mm 3 25.4 mm Greater than 3.75 mm NONE Not applicable Note : Allowable distance between spots of two sizes is the minimum separation number for the smaller spot. Therefore, if there are two spots, 1.30mm and 0.4mm in diameter, they must be at least 15mm apart.

2 OSD Menu

2.1 MAIN OSD MENU Outline:
The description for control function: The description for control function:

M a in M enu Ic o n

Sub Menu Ic o n N /A N /A
Sub Menu Ite m W a rm Cool U s e r /R e d U s e r /G r e e n U s e r /B lu e
D e s c r ip tio n S e t th e c o lo r te m p e r a tu r e to w a r m w h ite. S e t th e c o lo r te m p e r a tu r e to c o o l w h ite.
A d ju s tm e n t R ange N /A N /A 0 -0
R e s e t V a lu e T h e c o lo r te m p e r a tu r e w ill b e s e t to c o o l. 100
A d ju s ts R e d /U s e r /G r e e n G r e e n /B lu e in te n s ity.

N N N N N N N N

/A /A /A /A /A /A /A /A
E n g lis h D e u ts c h F r a n c a is E spanol Ita lia n o
M u lti-la n g u a g e s e le c tio n.
T h e la n g u a g e w ill b e s e t to E n g lis h
H. P o s itio n V. P o s itio n
A d ju s t th e h o r iz o n ta l p o s itio n o f th e O S D. A d ju s t th e v e r tic a l p o s itio n o f th e O S D. A d ju s t th e O S D tim e o u t. A u to A d ju s t th e H /V P o s itio n , F o c u s a n d C lo c k o f p ic tu r e. (O n ly A n a lo g In p u t M o d e l) S e le c t in p u t s ig n a l fr o m a n a lo g (D -S u b ) (O n ly D u a l In p u t M o d e l) S e le c t in p u t s ig n a l fr o m d ig ita l (D V I) (O n ly D u a l In p u t M o d e l) S e le c t th e D D C /C I O N o r OFF S h o w th e r e s o lu tio n , H /V fr e q u e n c y ,S N a n d in p u t p o r t o f c u r r e n t in p u t tim in g. C le a r e a c h o ld s ta tu s o f A u to -c o n fig u r a tio n a n d s e t th e c o lo r te m p e r a tu r e to W a r m. S a v e u s e r a d ju s tm e n t a n d O S D d is a p p e a r.

0 --0 -0

OSD T im e o u t N /A A u to C o n fig

A n a lo g

D ig ita l D D C /C I s w itc h
N /A T h e D D C /C I s w itc h , d e fa u lt is O N in m o n ito r. N /A

In fo r m a tio n

R eset

E x it

2. OSD Manu (continued)

3. Exploded Diagram

3.1 Packing Exploded Diagram
3. Exploded Diagram (continued)
3.2 Product Exploded Diagram
4. Assembly and Disassembly Procedures
4.1 Assembly procedures: Connect the cable between power board(P802)
and interface board (P301) Connect the function key cable into interface board(P304) Connect the FFC cable into interface board
Take the key function cable out from the hole shown as photo Fix the function key cable with a PVC tape

P304 P301

Turn the monitor faced down and put it on the
Use a Phillips-head screwdriver screwed the
bracket chassis module till both parts firmly Connect FFC cable to LCD panel. There are two locks over here when plugging in should be noticed
No.1~4 screws till that power board and bracket chassis base firmly attached.(No1~3 screw size=M3x6; No4 screw size=M4x8; Torque=9~10KGFxCM).
No.1~2 screws till that interface board and bracket chassis base firmly attached. (No1~2 screw size=M3x6; Torque=9~10KGFxCM). Plug in parallel direction

Angel < 5 degrees

4. Assembly and Disassembly Procedures (continued)
Take lamp cables out from the holes shown as the photo.
Put a rear cover on the assembled unit and
press on force mechanisms locked and firmly

attached.

Plug 2 lamp cables to the connectors of inverter board.
Use a Phillips-head screwdriver screw 1 screw
(No1 Screw Size=M4x10; Torque=7.5~9.5KGFxCM).
Use a Hex-head and Phillips-head screwdriver
Assemble the stand upper side to the rear cover
screwed the DVI and D-SUB connectors (No.1~4 Hex Nut screws Size=M3x8;Torque=6.50.5KGFxCM).
through the way of screwing 4 screws till both units firmly attached. (No1~4 Screw Size=M4x10; Torque=KGFxCM).

Torque=6.50.5KGFxCM).

Take a key function board to hook with front bezeland connect to key function cable.
Assemble the hinge cover into both two sides
Stick a screen card on the front bezel with two Put accessories of stand, DVI cable, and users manual ,power cable on specific positions as photo below.

tapes.

POWER CABLE

D-SUB CABLE

DVI CABLE
Stick Vista and TC003 label on the correct position the same as below photo

USERS MANUAL

Take a LDPE+EPE bag to cover the LCD
Move previous assembled parts into the carton then stick Vista and feature label on the carton then packing the carton

monitor.

FEATURE LABEL

VISTA LABEL

Take two cushion foams; one is held the left side
of LCD monitor, and another is held the right side.
4.2 Disassembly procedures
Open the carton with a proper tool.
Put returned unit on a protective cushion,then
remove LDPE+EPE bag. Tear off tapes to remove the screen protector card then turn over the LCD monitor (screen

faced down),

Take out all accessories including D-SUB cable power cable, DVI cables, users manual, and packing material from the carton. (Note: It depends on whether users returning the accessories.)
Disassemble the stand cover.
Use a Phillips-head screwdriver unscrew 4 screws to release the stand base. (No1~4 Screw Size=M4x10;

Torque=121KGFxCM).

Take off two cushion foams
Use a Phillips-head screwdriver unscrew 1 screw
Put the dissembled monitor closed to by myself Separating all of the locking mechanism of the front bezel in turn

RIGHT SIDE

DOWN SIDE
Wedge your finger between the front bezel and the panel, then pry up on the front bezel to disengage the locking mechanism.
Turn over the LCD monitor (screen faced up).

UP SIDE

LEFT SIDE

S10 S13

Hold the one upside corner of the front bezel after separating the upside of the front bezel Using properly force to pull up front bezel that will let the locking mechanism of left side, right side and down side separated
Insert steel rule between panel and front bezel.Using properly force to let the locking mechanism of front bezel and rear cover separated
Hold one side of down side that had been separated from front bezel Use properly force to pull up front bezel

Unplug 2 lamp cables

Disconnect the FFC cable to the connector of panel. Use finger to push the lock according to arrow direction then take out the FFC cable
Unhook the key function board from front bezel, disconnect the key function cable
Take out lamp cables right through the No.1-2
Use a Hex-head screwdriver unscrewed 4 screws to release the DVI and D-SUB connectors (No1~4Hex Nut screws Size=M3x8;Torque=4.5~6.5KGFxCM).
square holes and separate the bracket chassis module and LCD panel apart.

Examine the panel surface accoring to inspection
Disconnect all of the cable

criteria. Put it aside.

Use a Phillips-head screwdriver unscrewed the No.1~2 screws to release the interface board. (No1~2 screw size=M3x6; Torque=9~10KGFxCM).
Use a Phillips-head screwdriver unscrewed the No.1~4 screws to disassemble the power board. (No 1~3 screw size=M3x6; No 4 screw size=M4x8; Torque=9~10KGFxCM).

5. Troubleshooting

5.1 No display on the screen (Screen is black and colour of LED is amber.)
Does OSM display when you push PROCEED buttom.
No When a signal isn't being inputted, it is indicated with "No Signal Input". it is indicated with "Out Of Range" at the time of the frequency that it can't be distinguished. Yes
Proceed "No OSM display" section.
Check if the sync signal from computer is output and if the video cable is connected normally.
Input the sync signal of computer, or change the cable.
Proceed "checking the resolution change IC movement" section.
5. Troubleshooting (continued)
5.2 Nothing displays on the screen (Screen is black and colour of LED is blue.)

Is backlight lit?

Refer "Checking the backlight unit" section"
Does computer output RGB video signals?
Check the video cable for failure. Check the host for output signal is all black or not.
1) Change pattern of video signal output on the host. 2) Reconnect the video cable. 3) Change the video cable.
Check OSM menu is display on screen when you push the "PROCEED" key.
Check if the LCD video signal cable is connected between the Interface Board and LCD module.
Failure Point NG OK Proceed "Abnormal sreen" dection" The LCD video signal cable is disconnected.

Next Page

5.2 Nothing displays on the screen (Screen is black and colour of LED is blue)continued

Continue

Check the 5V power supply for P305 pin 1,2,3. NG
Check the I301 pin2 if voltage is 3.3V
Proceed "Checking the DC/DC converter circuit" section.
Check the I309 pin2 if voltage is 1.8V
Check the I307 pin2 if voltage is 5V
Failure Point 1) FB312 is open. 2) C353, C355 is short.
Check if the voltage between I307 pin2 and pin3 is above -0.7V Check if the Q311 pin2 of PANEL Power_ON/OFF signal that outputted by I305 pin10 is High level. OK Failure Point 1) Printed wire between R311 pin3, R410, R412, I307 pin1 is failure. 2) Q311 is failure. Failure Point 1) Printer wire between R411 and I305 pin10 is failure 2) I305 is failure. 3) R413,C366 is short
NG OK Failure Point I307 is failure.
Check the input voltage level whether was changed when pressed function keys on the P304 pin 5 (normal is high level, when push buttom, generated 2.2V/1.9V/0.7V) NG
Check if the voltage on I305 pin 20 that is from 3.3V to 0.7V. OK NG OK 1) Printed wire broke between P304 pin 5 and I305 pin 20. Failure Point
Check the P305 all LVDS signals.
Failure Point I305 is failure Failure Point
1) Printed wire broke between P305 and I305 LVDS signals. 2) I305 is failure.
Failure Point 1) The LVDS cable broke between P305 and LCD module. 2) LCD module is failure.
5.3 Checking the back light unit
Is +22V supplied to inverter PWB ? (by the power board)
Failure Point NG OK 1) Power board of Inverter part failure.
Check the BKLT_EN signal of the DC input P301 pin 1 at TTL high level.
Failure Point NG OK 1) printed wire broke between P301 pin1, R303 and I305 pin 88. 2) I305 is failure.
Check the BKLT_ADJ signal of the input P301 pin3 from I305 pin86 is a PWM signal.
Failure Point NG OK 1) printed wire broke between P301 pin3, R304,R357 and I305 pin11. 2) Q302 is failure.
Failure Point 1) Back light unit of LCD module is failure. 2) Inverter Cable disconnect
5.4 Abnormal screen for VGA
Check the R, G, B video signal from computer input on P302 of video connector.

Failure Point 1) No R, G, B video signals output from host computer, check computer. 2) Video signal cable disconnection.
Check the R, G, B input video signals on I305 pin12, 14, 16 respectively that their level is 0.0 to 0.7Vp-p.
Failure Point In the case of the Red signal. (A Green and Blue signal is the same path, too.) 1) Printed wire broke between P302 pin1 and I305 pin16. 2) Video cable is failure. 3) FB302,FB306,R327 is open. 4) R326 is short or open. 5) C315 is short or open.
Check all LVDS signals being output to P305 from I305?
Failure Point Printed wire broke between I305 and P305.
Prpcess "Checking the resolution change IC movement" section.
5.5 Abnormal screen (For the DVI)
Check the DVI video signal from computer input on P303 of DVI-I video connector.
Failure Point NG OK 1) No DVI video signals output from host computer, check computer. 2) DVI Video signal cable disconnection.
Check the DVI input video signals on I305 pin 2,3,4,5,6,7,47,48 respectively that differential input voltage is 150 to 1200mV, and input commond mode voltage is 3.3V. Failure Point NG In the case of the DVI_RX0+/- signal. (A DVI_RX1+/-, DVI_RX2+/- and DVI_RXC+/signal is the same path, too.) 1)Printed wire broke between P303 pin 17, 18 and I305 pin 4. 15. 2) Video cable is failure. 3) R334, R335 open.
5.6 Abnormal OSM display adjust problem
Check the input TTL level whether was changed when pressed function keys on the P304 pin3, 5 (normal is high level, when push buttom, generated low level plus)
Failure Point 1) Function key wire disconnection. 2) Function key wire is failure. 3) Function key board is failure.
Check the input TTL level of I305 pin20, 21 whether was changed when pressed function keys. (Refer to Table 1)
Failure Point 1) Printed wire broke among P304 pin3,R350 and I305 pin21 2) Printed wire broke among P304 pin5 ,R349 and I305 pin20 3) C358,C359 is short. 4) R374, R375 is short or open. 5) D327,D328 is short
Failure Point I305 is failure.
5.7 Abnormal plug and play operation for VGA
Confirm the host computer supplies DDC2B mode.
Failure Point The host machine is not communicatiog in DDC2B mode.
Check the voltage on P302 pin9 that is power DC 5 V.
Failure Point TheVideo cable is failure.
Check the voltage on Q307 pin1 that is power DC 3.3V.
Failure Point 1) Printed wire broke between Q307 pin3,D325 and P302 pin9 2) R369,R372,R363 is short or open. 3) D325 is failure or Q307,I304 is failure.
Check the signal on P302 pin12, 15 that is serial data / clock signal.
Failure Point The Video cable is failure.

5.10 Checking the resolution change IC movement
Check +3.3V supply on I305 pin41,I308 pin1,46.
Proceed " Checking the DC/DC converter circuit" section.
Check +1.8V supply on I308 pin 19,17,40.
Check X300 24MHz clock input to I305 pin 15 and 16 at TTL level.
Failure Point NG OK 1) Printed wire broke between X300 and I305 pin 15, 16. 2) C340, C341 is short or open. 3) X300 failure.
Check I305 pin 4 RST signal is low level at normal operation. NG
Failure Point 1) Printer wire broke between I305 pin 4 and C345 2) C345 is short. 3) I305 is failure.
Check I305 pin 38,39,40 IIC signal.
Failure Point NG OK 1) Printed wire broke between I305 pin 38, 39, 40 and I303 pin 5, 6,7. 2) R351,R352,R353 is open. 3) R395,R396,R397 is open or short. 4) I303 is failure.
Failure Point I305 failure.
5.11 Checking the DC/DC converter circuit
Check the 5V is output from P301 pin 5,6
Failure Point 1) Power wire disconnection. 2) Power board is failure.
Check the 5V is input to I301 pin3.
Failure Point 1) Printed wire broke between P301 pin 5,6 and I308 pin3.
Check the 3.3V is output from I301 pin2, 4.
Failure Point I301 is failure or C303,C304 short.
Check the 3.3V is input to I309 pin3.
Failure Point 1) Printed wire broke between I302 pin2. 4 and I309 pin3.
Check the 1.8V is output from I309 pin2,4.
Failure Point I309 failure or C368 short.
Failure Point 1) Printed wire broke between I301 pin2,4,I309 pin3,2,4 and I308 2) FB309,FB310 is open.
6. Firmware Upgrade Process
6.1 Hardware Configuration If it shows No USB Device, there is a problems with communication.you should confirm your USB device whether be detected by your PC device management or reconnect the USB cable again.
Connect VGA cable between monitor and kit Connect USB and VGA cable between PC and kit
Step-3Select ISP icon. 6.2 Realtek F/W Configuration: Step-1 Launch the utility of DebugTool_V6.2.exe

Step-2 Select USB

Step-4 Follow up the red square indication Select both,Checksum,Auto,Page Erase, Select 21 for Extend size.
6. Firmware Upgrade Process (continued)
Step-5 Select 64K icon to load firmware image. There are two HEX files. You only need to select 64K to choose X203H_AAS_F001-EMEA.hex and X203H_AAS_F001-EMEA_Extend.hex will be loaded in 64~96 automatically. The screen will show PASS

Check firmware version Turn off the power,then press force on POWER and E button at the same time then press on MENU button to enter factory mode Note: Please pay attention ,Dont change any parameter which is measured by precise machine before shipping out

Step-6Press

button

7. Writing EDID Process

1 Writing EDID Procedure Hardware Configuration: 1.)Connect the PRINTER PLUG of DDC FIXTURE with the printer port of Desktop PC. (Refer to figure 1) 2.)Plug USB A PLUG of DDC FIXTURE to USB socket of Desktop PC (Refer to figure 2) 3.)Extend the DVI cable on DVI EXTENDING SOCKET of DDC FIXTURE. (Refer to figure 3) 4.1)Connect the D-sub plug of Chroma with D-SUB PLUG of DDC FIXTURE (Refer to figure 4) 4.2) Take a video cable then connect the D-SUB PLUG and the D-sub socket of monitor. (Refer to figure 5) 5.)Connect the extended DVI cable to DVI socket of monitor (Refer to figure 5) 6.)Re-confirm all the connectors are connected well. 2. Writing VGA/DVI Process Chose the folder:Acer-X193H-X203H-digital signal or AcerX193H-X203H it depends on which model you want to write. Acer-X193H-X203H be used in the monitor only has VGA port. Acer-X193H-X203H-digital signal be used in the monitor both have VGA and DVI port Select the Acer-M1&M3-XPEDID-DVI-.exe to execute it

D-SUB PLUG

DVI EXTENDING SOCKET
USB A SOCKET PRINTER PLUG DVI EXTENDING SOCKET

USB A PLUG

3.Select Model: Key in passwordcedid then select model which one you want to write EDID code that it depends on panel type.
CAUTION: The timing of Chroma shall be setup at T254/ P41 before data recording. the detail setting parameter from chroma.Please See below photo
7. Writing EDID Process (continued)
4. Choose "WRITE" from menu then select "Scan S/N And Write EDID And Test DDC
5. Key in series number(22 characters) in the input column and below empty column. Press write button after key in S/N
6. When EDID was written successfully that will show below message on the screen

8. BLOCK DIAGRAM

ACER X203H