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LCD Monitor Acer X163W
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Acer Acer LCD-X163W
Service Manual
LCD Monitor Acer X163W
-0-
1
Table of Contents
Important Safety Notice .........................................................................................01
01 Product Specification ..........................................................................................03
02 Flat Panel Specification .......................................................................................17
03 Exploded Diagram ..............................................................................................34
04 Troubleshooting ....................................................................................................35
05 Spare Parts List ...................................................................................................41
06 Schematics and Layouts.......................................................................................42
07 Assembly and Disassembly ................................................................................49
Appendix : User's manual
Copyright
Copyright 2006 InnoLux Tech. 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 Tech. Corp. Ltd.
Acer X163W Service Manual
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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 used or installation may cause damage to the monitor as well as to the user.
Warning:
This 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.
Do 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.
Do not remove the monitor cabinet. There are high-voltage parts inside that may cause electric shock to
human bodies.
Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable immediately
and consult your closed dealer.
Always 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.
Do not place heavy objects 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
When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
Keep wires away from high voltage, high temperature components and sharp edges.
Keep wires in their original position so as to reduce interference.
Adjustment of this product please refers to the user' manual.
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01 Product Specification
1. General:
Acer X163W is designed with analog interface input, it featured with embedded universal AC power supply . It's a green
product and meets all ROHS standard. The power button and display control buttons are on the front of the monitor. The
monitors shall automatically to display lower resolution video modes into 1366 x768 full screen display. The image can be
adjusted through OSD control.
1.1 Main Features
Features Specifications
Maximum resolution 1366 x 768@60Hz
Back light system 2 CCFL (top & bottom edge side)
Actual Resolution
WXGA+ (1366 x 768)
display
Pixel pitch (mm) 0.252(H) x 0.252(V)
Display area 344.232 x 193.536 mm
Contrast ratio 5001 (typ.)
Response time (Tr+Tf) 8ms (typ.),
Viewingangle (CR>=10) 45°(L)/ 45°(R), 20°(U)/45°(D)
Input interface Analog(D-sub 15 pin)
Audio system NA
Power management Compatible with Energy Star
Plug & Play VESA DDC2B /CI
University AC power
AC 100~240V, 5060Hz
supply
1.2 Accessories
VGA DVI User's Warranty Quick-start Installation
Items
cable cable manual card Guide Guide
Description 1.5m
NA
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
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Operating Specification
Temperature range 0°C to 40°C
Relative humidity 20% to 90%
Altitude 0 to 3048M (10000 ft)
Storage
Temperature range -20°C to 60°C
Relative humidity 10% to 90%
Altitude 0 to 9144M (30000 ft)
2.2 Safety, EMC, Ergonomics and Compatibility Requirements
Items Description
UL/cUL CB Nemko /GS CCC BSMI Other
Safety
FCC-B CE CCC VCCI
EMC
TCO99 Nemko/Ergo
Ergonomics
Windows 95/98/Me Windows 2000 Windows XP Vista
Compatibility
Power Energy Star
Management
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2.3 Electrostatic Discharge Requirements
Item Condition Spec
Contact discharge : 4KV
Contact discharge : 8KV
Electrostatic Discharge IEC61000-4-2(EN55024)
Air discharge : 8KV
Air discharge : 15KV
2.4 Reliability
Items Condition Spec Note
Excluding the
MTBF 40,000 Hours
LCD, CCFL
CCFL Life time Luminance becomes 50% 40,000 Hours(min) Note1
Note1. Display an all WHITE field at mid Brightness and Contrast settings.
3. Electrical and Optical Characteristics and Performance
3.1 Main Power Supply
Items Condition Spec Note
AC Input Voltage Range Universal input full range 100~240VAC /50~60Hz
AC Input Current 100Vac 0.8A(max)
240Vac 0.4A(max)
AC Frequency Range 100Vac 50Hz 60Hz
240Vac
Inrush Current 100Vac,cold star,25°C 40A (max)
240Vac,cold star,25°C 60A(max)
Regulator Efficiency DC output full loading 75%
Ripple and Noise +14.2V output <500mv
+5V output <150mv
DC Output Voltage and Current VCC14.2V(13.5~16.3V) 1.1A(typ.),1.4A(max)
VCC5.2V(4.95~5.45V) 0.8A(typ.),1.0A(max)
Power consumption without Audio 25W
Protection See Table-1
Power management See Table-2
Table-1
Protection Condition Spec
Short output (for 5V
SCP(short circuit protection) output it must be shorted with auto-recovery function
before F802)
OPP(Over power protection) nominal AC input 32W ( min )
Table-2
H-sy V-sy
Status Video Power LED
nc nc
Power On on on active 25W Blue
Power Saving off on blanked < 2W Orange
on off blanked < 2W Orange
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off off blanked < 2W Orange
Power Off -- -- -- < 1W Off
3.2 Backlight Power Supply
Panel: CMO M156B1-L01
Items Specification
Lamp 2 CCFL
Input Voltage 14 (13.5~16.3)V
Input current 1.1A(typ.), 1.4A(max.)
5.5V Vno 2.0 V (on)
On/Off switch level
-0.3VVoff 0.8 V (off)
Brightness PWM duty Extra PWM duty:35% --100% ,High=3.3V, Low=0.0V, Freq=4* Vsync.freq..
CCFL operating Voltage 650Vrms (Typ.),
3.0 mA (min.)
CCFL Current 7.0mA (Typ.)
8.0mA (Max.)
CCFL startup voltage 1200 Vrms (0°C)
Operating frequency 40~80 KHz
Protect delay time > 1 second
Efficiency 75%(dummy load instead of CCFLs:100Kohm*2)
Note: Other panels please refer to the reference panel specs.
3.3 Brightness 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 : 1366 x 768
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes
LCD Module BL
CMO M156B1-L01 210 cd/m2
Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall
BL cd/m2 (as panel spec)
3.4 White balance
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
The test standard conditions refer to Sec 3.3. (Brightness and contrast are under default value)
3.5 Brightness uniformity
The test standard conditions refer to Sec 3.3.
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Min. luminance of nine points (backlight)
75%
Max. luminance of nine points (backlight)
4. Input / Output Signal Specifications
4.1 Video signals
Items Condition Specification
Analog RGB signal Input impedance = 75 Ohm 0.7Vp-p
TTL level
Logic High: 2.0V ~ 5.5V
Sync Input impedance 2.2k Ohm Logic Low: 0V ~ 0.8V
Separate H/V-sync(+/-)
4.2 Signal Timing
4.2.1 D-SUB Inputs
Through D-SUB connectors, this unit can support FH= 31 ~ 57 KHz, Fv=56 ~ 70Hz and panel DCLK<=
85 MHz. SXGA display modes as below:
VESA MODES
Horizontal Vertical
Nominal
Mode Resolution Total Nominal Nominal Pixel Clock
Sync Sync (MHz)
Frequency Frequency
Polarity Polarity
+/-0.5KHz +/-1Hz
VGA 640*480@60Hz 800*525 31.469 N 59.941 N 25.175
800*600@56Hz 1024*625 35.156 P 56.250 P 36.000
SVGA
800*600@60Hz 1056*628 37.879 P 60.317 P 40.000
1024*768@60Hz 1344*806 48.363 N 60.004 N 65.000
XGA
1024*768@70Hz 1328*806 56.476 N 70.069 N 75.000
MAC MODES
VGA 640*[email protected] 864*525 35.000 P 66.667 P 30.240
Other MODES
XGA 1024*768@66Hz 1318*809 53.414 N 66.025 N 70.400
WXGA+ 1366*768@60Hz 1792*798 47.714 P 59.790 P 85.500
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
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4.2.2 DDC signals
DDC signals: 5V@50mA TTL level
4.3 Timing requirements
Scan Frequency Condition Specification
Horizontal Sync polarity: (+) or (-) 31 ~ 57 KHz.
Vertical Sync polarity: (+) or (-) 56-70Hz
Excluding
Horizontal 31~57 KHz or
Out of range Message "Input Not Supported" on screen
Vertical 56-70 Hz
panel DCLK<= 85 MHz
4.4DDC data
4.4.1 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 attached table (for example)
X163W EDID table
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 00 FF FF FF FF FF FF 00 04 72 58 00 5C AA 80 80
1 08 12 01 03 08 23 14 78 E8 55 45 A3 55 4A 97 27
2 15 50 54 33 0C 00 61 46 01 01 01 01 01 01 01 01
3 01 01 01 01 01 01 8A 21 56 B0 51 00 1B 30 48 90
4 13 00 58 C1 10 00 00 1C 00 00 00 FD 00 38 46 1F
5 39 09 00 0A 20 20 20 20 20 20 00 00 00 FF 00 31
6 32 33 34 35 36 37 38 39 30 41 42 0A 00 00 00 FC
7 00 58 31 36 33 57 0A 20 20 20 20 20 20 20 00 43
X163W EDID table detail description:
Address Vendor Product Identification Description
00~07h ID information Header ID information Header
ID Manufacturer
08~09h ACR
Name
0A~0Bh ID Product Code 0058
0C~0Fh ID Serial Number 8080AA5C
10h Week of Manufacture 08
11h Year of Manufacture 2008
12h Version Number 1
13h Revision Number 3
14h Analog/Digital Signal Level [7] Analog Signal Level
Signal Level Standard [6:5] 0.700, 0.300 (1.000Vp-p)
Setup [4] No Blank -to-black Setup
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Sync Inputs Supported [3] Separate Syncs. Supported
Sync Inputs Supported [2] No Composite Sync. Supported
Sync Inputs Supported [1] No Sync. on Green Supported
Sync Inputs Supported [0] No Serration Required
Max. Horizontal Image
15h 35 cm
Size
Max. Vertical Image
16h 20 cm
Size
17h Gamma 2.2
18h VESA DPMS [7] Standby
VESA DPMS [6] Suspend
Display Off Consumption [5] Active Off/Very Low Power
Display Type [4:3] RGB Color Display
sRGB Standard Color Space
No sRGB Color Space
[2]
Preferred Timing Mode [1] No Preferred Timing Mode
GTF Standard [0] No Default GTF Supported
Red (x ,
19~22h 0.638, 0.333
y)
Green (x , y) 0.290, 0.591
Blue (x , y) 0.153, 0.082
White (x , y) 0.313, 0.329
23h IBM, VGA [7] 720 x 400 @ 70Hz (N/A)
IBM, XGA2 [6] 720 x 400 @ 88Hz (N/A)
IBM, VGA [5] 640 x 480 @ 60Hz
Apple, Mac II [4] 640 x 480 @ 67Hz
VESA [3] 640 x 480 @ 72Hz (N/A)
VESA [2] 640 x 480 @ 75Hz (N/A)
VESA [1] 800 x 600 @ 56Hz
VESA [0] 800 x 600 @ 60Hz
24h VESA [7] 800 x 600 @ 72Hz (N/A)
VESA [6] 800 x 600 @ 75Hz (N/A)
Apple, MacII [5] 832 x 624 @ 75Hz (N/A)
IBM [4] 1024 x 768 @ 87Hz(I) (N/A)
VESA [3] 1024 x 768 @ 60Hz
VESA [2] 1024 x 768 @ 70Hz
VESA [1] 1024 x 768 @ 75Hz (N/A)
VESA [0] 1280 x 1024 @ 75Hz (N/A)
25h Apple, Mac II [7] 1152 x 870 @ 75Hz (N/A)
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VESA [6] 800 x 600 @ 85Hz (N/A)
VESA [5] 1024 x 768 @ 85Hz (N/A)
VESA [4] 1280 x 1024 @ 60Hz (N/A)
VESA [3] 1280 x 1024 @ 85Hz (N/A)
VESA [2] 1600 x 1024 @ 60Hz (N/A)
VESA [1] 1600 x 1200 @ 75Hz (N/A)
VESA [0] 1600 x 1200 @ 85Hz (N/A)
26~27h Standard Timing Identification #1 1024 x 768 @ 66Hz 4: 3
28~29h Standard Timing Identification #2 No Application
2A~2Bh Standard Timing Identification #3 No Application
2C~2Dh Standard Timing Identification #4 No Application
2E~2Fh Standard Timing Identification #5 No Application
30~31h Standard Timing Identification #6 No Application
32~33h Standard Timing Identification #7 No Application
34~35h Standard Timing Identification #8 No Application
Pixel Clock 85.86 MHz
Horizontal Active 1366 Pixels
Horizontal Blanking 432 Pixels
Vertical Active 768 Lines
36~46h
Vertical Blanking 27 Lines
Horizontal Sync Offset 72 Pixels
Horizontal Sync Pulse Width 144 Pixels
Vertical Sync Offset 1 Lines
Vertical Sync Pulse Width 3 Lines
Horizontal Image Size 344 mm
Vertical Image Size 193 mm
Horizontal Border 0 Pixels
Vertical Border 0 Lines
Non-Interlaced
Normal Display, No Stereo
Flags Digital Separate
Vsync Positive Polarity
Hsync Negative Polarity
48~59h Min. Vertical Frequency 56 Hz
Max. Vertical Frequency 70 Hz
Min. Horizontal Frequency 31 kHz
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Max. Horizontal Frequency 57 kHz
Max. Pixel Clock 90 MHz
5A~6Bh Monitor Serial Number 1234567890AB
6C~7Dh Monitor Name X163W
7Eh Extension Flag 00
7Fh Checksum 43
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 Panel general specifications
5.1.1 General specifications
Supplier CMO
Model name M156B1_L01
Display Area 344.232 x193.536 mm
Pixel Pitch 0.252(H) x 0.252(V)
Display Colors: 16.7 Million
Number of Pixel 1366x768 pixels
Pixel Arrangement RGB vertical stripe
250cd/m2(Typ.)
Brightness
210cd/m2 (Min.)
500:1 Typ.
Contrast Ratio
350:1 Min.
Viewing Angle 45(R),45(L),45(D),20(U) (Typ., CR>10)
Display Mode Normally White
Frame rate 75Hz
Response Time Tr + Tf = 8ms Typ.
Surface Anti-glare, Haze = 25%,
Treatment Hard coating (3H)
Lamp 2 CCFL
Outline
363.8(W)x215.9(H)x14.3(D) (Typ.)
Dimension
5.1.2 LCD module defects
LCD module defects check follow to the IIS.
5.2 Keypad Function
5.2.1 Control buttons on the front bezel
CONTROL KEY KEYS FUNCTION
A. When "main OSD" un-displays, press [AUTO] to perform "scenario OSD" ;
B. When "scenario OSD" displays, press [AUTO] to perform auto-adjustment;
[AUTO]
C. When "main OSD" displays, press [AUTO] to return to previous level menu or exit
"main OSD".
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A. When OSD un-displays, when press [e] the e-Color menu will show
[e]
B. When OSD displays, when press [e] the e-Color menu will show, OSD will disappear
A. When "main OSD" isn't shown on screen, press [MENU] to enter "main OSD"
interface;
[MENU]
B. When "main OSD" and displays, press [MENU] to perform function of menu icon that
is highlight or enter next level menu.
When "main OSD" and "scenario OSD" displays, press these keys to change the
[], []
contents of an adjustment item, or change an adjustment value
[POWER] Power on or power off the monitor
5.2.2 Hot Key Operation
HOT KEY OPERATION
FUNCTION DESCRIPTION
e MENU POWER
Press [e] & [MENU] at the same time, and then
FACTORY press [POWER] for DC power on. OSD menu
MODE
ON
will be shown with "F" on the left top. Select "F"
for entering factory mode.
5.3 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.
First Second Third Control Range Default Value
User mode 50
Text mode 50
Contrast --- 0 ~ 100 Standard mode 50
Graphics mode 60
Movie mode 56
Brightness User mode 77
Text mode 44
Brightness --- 0 ~ 100 Standard mode 77
Graphics mode 97
Movie mode 77
Focus --- 0 ~ 100 Depend on each timing
Image
Clock --- 0 ~ 100 50
Horizontal --- 0 ~ 100 50
Position
Vertical --- 0 ~ 100 Depend on each timing
Warm (6500K) --- ---
Cool (9300K) --- ---
Color Red 0 ~ 100 80
User Green 0 ~ 100 80
Blue 0 ~ 100 80
Language NO-EMEA EMEA
English English --- --- English
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Deutsch Deutsch --- ---
Español Español --- ---
Hollands --- ---
--- ---
Français Français --- ---
Italiano Italiano --- ---
Suomalainen --- ---
Hor. Position --- 0 ~ 100 50
OSD Ver. Position --- 0 ~ 100 50
OSD Timeout --- 10~ 120 20
Analog --- --- ---
Input
Digital --- --- ---
Resolution --- --- ---
Info H. Freq --- --- ---
V. Freq --- --- ---
Reset --- --- --- ---
Exit --- --- --- ---
Notes; Clock default 50 is for Visa timing. Others depend on timing.
1
8.0 SOP of firmware upgrade
8.1 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_v3.7.5.3
Manufacture of FW IC PMC/SST/MX
8.2 Operational steps:
1. Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state.
One port of ISP
program card
is connected to
PC print port.
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2. Adjust ISP programming
Firstly, double click ISP_Tool_v3.7.5EXEI and open ISP program, then select "Device", next select
manufacturer model of FW IC, which should be correspondent with that of PCBA FW IC. Double click
Figure One.
Secondly download FW software: first select "READ", and then load FW software in Rooter (Fig.2).
FW software
rooter
Software
Checksum
Thirdly, select "Connect" and enter ISP MODE as in the following Figure 3.
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Fourthly, select "AUTO", and keep its default value. Click "RUN" for beginning programming. There will
be prompting if programming is OK.
Note: if programming fails or success rate is not high, click "Config" and adjust its speed in
"E2PROM DEVICE SETTING"
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After connecting, AC ON,
DC ON
OK Flowing chart
Open ISP program
OK
Choose manufacturer
and model of FW IC
OK
LOAD FW software
OK
Click Connect and enter
ISP MODE
OK
Choose Config
and adjust
programming
OK NG
Turn off power if
programming is OK
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02. Flat Panel Specification
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03 Exploded Diagram
3.1. LCD Exploded drawing (All)
Q'ty/
No S/N Description set Unit Torque Remark
±
1.0
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04 Troubleshooting
1 No Power & LED Off
No power
Check primary Check circuit Check IC802,
rectifier voltage if short C805, T801
Check F801, L801,
D801
Check pin1 of
IC802 voltage Check R803, R807,
about 2V R824, R825,R812
Check R817,
Check pin2 of IC802
D808,R816,
voltage about 2.5V
C818,C817
Check IC801 and
Check pin2 of IC802 secondary feedback
voltage is low
END
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2. DC output voltage is unstable
Output voltage unstable
Check Voltage of Check circuit Check ZD801, D803,
ZD801 below if short D805
12V?
Check ZD801
Check R809, IC801,
Check Pin R of
Check reference
IC803 voltage
voltage
about 2.5V
Check R810, R811
Check feedback Check Vpin2-4 Check R817,
circuit of IC801 is 1V C815, D806
Check IC801
have output
Change IC
END
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3. No Raster
No raster?
Yes
LED Blue?
Yes
Backlight can't
be turned on.
Yes
No
Is there 14Vdc Check power supply
voltage on pin9 of
IC501?
Yes
Is there high-level No Yes
voltage on pin8 of Is Ok R503? Check I/F board
IC501?
Yes No
R503 open
Are connected rightly Connecting the
CN501, CN502? No output connector
again
Yes
Is there instantaneously pulse
wave on pin14, pin11 of No Yes
IC501 at the moment of Is Ok IC501? U501 fail
restart?
No
IC501 fail
Yes
No T501 fail
Is T501 ok?
Yes
Check feedback circuit END
D507,D508.
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4.Black Screen
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5. Bad Screen
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6. White Screen
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05 Spare Parts List
INL P/N Description MOQ
20
791791300500R PCBA,I/F BOARD,W/O,LE15F9-510,ROHS
20
791551400500R PCBA,P/I BOARD,W/O SPK,LE15E1-510 ROHS
20
791791500000R PCBA,KEYPAD BOARD,LE15F9-510 ROHS
20
453070801190R PWRCORD 16A/250V BLK 6FT VDE/KTL H05VV-F
20
453010100470R CABLE D-SUB 15P MALE 1.5M BLK/BLUE ROHS
20
430303001630R HRN LVDS FFC 30P 125mm ROHS
20
430300802000R HRN ASS'Y 171mm 2X4PW/O4P,8PTO 1X8P W/O7
20
714050017700R Assy,back cvoer for CMO,for out,LE15F9
20
714030018901R ASSY, BEZEL,BLACK,for out,LE15F9
20
714011204100R stand le15F9
20
714020015100R Assy,base cvoer,for out,LE15F9
20
501020223400R back cover for CMO,for out,LE15F9
20
701000010200R Assy Chassis for CMO for out LE15F9
10
631102050170R LCP 15.6"M156B1-L01-901(A) (CMO)ROHS
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06 Schematics and Layouts
6.1 PI BD Layout
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6.2 IF BD Layout
44
5 4 3 2 1
VIN
C513 C507
2.2u/25V 2.2u/25V
D D
C512
C514 2.2u/25V
R502 C506 2.2u/25V
10K 1% OV1 16 1u/16V 1 CN502
OV AGND H 4100-D02
LI 2 15 2
C502 LI GND L
3300p/50V 3 14 R507 C519 R524
C503 COMP BG D506 10 10p/3KV OL1 470
SH
10u/16V 4 13 SN4148 R522
FT VCC REF
10K 1%
LCS 5 12 LV1 R520
R505 FSET SW
820 1%
R501 88.7K 1% 6 11 T501 R518 D507
1M BOSC TG C509 C520 SN4148
2 8 20K 1%
R526 7 10 0.047/50V 3 3300p/50V
NC DBRT BT C511
U501 0.1/25V
8 EN VIN 9
REF
1 8 5
IC501 6 7 1 CN501
MP1008 H 4100-D02
BRIGHTNESS 2 7
R506 SPW-078 2
10K C504 L
220p/50V 3 6 R525
C517 OL2 470
R508 4 5 10p/3KV R521
10 LV2 10K 1%
R519
R517 820 1%
AF4971NN C518 20K 1% D508
ON/OFF 3300p/50V SN4148
R503 R504
C 10K 100K 1% C505 C
0.01/50V
LI
VIN R523
+14V
2K2 1%
+
C510
220u/25V
REF
SH
D509 R527
SN4148 220K
R515
LCS 75K
3
Q502
2N7002
1 OL1
1 LV1 R511 R512
OV 3 560K 1% R530 10K D505 D503
2
R509 2 LV2 150K 1% SN4148 SN4148
B B
240K R528
D501 1M C516 R516
3
R510 BAV70 0.1/50V 75K
3
68K 1% 1
Q503
C501 Q501 2N7002 1 OL2
NC