Acer P205H Schematic
Acer Acer –LCD-P205H
Service Manual
LCD Monitor Acer P205H
- 0 -
1
Table of Contents
Important Safety Notice .........................................................................................02
01 Product Specification ..........................................................................................03
02 Flat Panel Specification .......................................................................................15
03 Exploded Diagram ..............................................................................................36
04 Troubleshooting....................................................................................................37
05 Spare Parts List ...................................................................................................42
06 Schematics and Layouts.......................................................................................43
07 Assembly and Disassembly ................................................................................46
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 P205H Service Manual
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Acer Acer –LCD-P205H
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:
z 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.
z 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.
z Do not remove the monitor cabinet. There are high-voltage parts inside that may cause electric
shock to human bodies.
z Stop using the monitor if the cabinet is damaged. Have it checked by a service technician.
z Put your monitor only in a lean, cool, dry environment. If it gets wet, unplug the power cable
immediately and consult your closed dealer.
z 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.
z 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
z When replacing parts or circuit boards, clamp the lead wires around terminals before soldering.
z Keep wires away from high voltage, high temperature components and sharp edges.
z Keep wires in their original position so as to reduce interference.
z Adjustment of this product please refers to the user’ manual.
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Acer Acer –LCD-P205H
01 Product Specification
1. General:
P205H series LCD monitor is designed with a wide screen 20.0” WXGA+ TFT LCD panel, LVDS interface, analog RGB signal input
and DVI-D signal input.It featured with embedded universal AC power supply. This monitor can support maximum resolution up to
1600 x 900@60Hz. It support HDCP and color management function.
1.1 Main Features
Maximum resolution : 1600 x 900 @ 60Hz
Back light system : 4 CCFL (top & bottom edge side)
Pixel pitch : 0.2768 (H) x 0.2768 (V)
Display area : 442.8(H)x249.2(V) 20.0 inch diagonal
Brightness : ≥250cd/m²
Contrast ratio : 1000
ACM (option) :20000:1
Response time (Tr+Tf) : 5ms (typ.) (2)
GTG (Option) : 2ms
Viewing angle : 160°(H)/ 160°(V), typ (3)
Input interface : Analog (D-sub 15 pin)
Digital Option(DVI-D 24 pin)
Power management : Compatible with VESA DPMS
Plug & Play : VESA DDCCI
OSD language
Non EU version : English, French, German, Italian, Spanish, Chinese S. Chinese T. Japanese
EMEA version : English, French, German, Italian, Spanish, Dutch, Finnish, Russian
Russian version : Russian
Universal AC power supply
Note (1)(2)(3): This item spec depend on the LCD panel.
׃1 (typ.) (1)
1.2 Accessories
Items
Description
AC Power Cord : 1.8 m. (Black. Cord type depend on sale region)
VGA cable : 1.8 m. (15 pin D-SUB, black cable with blue male connector)
Quick-start Guide : User manual English (640Mb CD)
Audio cable : 1.8m. (Green/Blue header)
DVI cable : 1.8 m. (18+1 pin, black cable with white connector)
Audio Cable(option) : 1.8 m (Audio Line Cable Green/Blue header)
Power cable
(option)
1.8m 1.8m 1.8m 1.8m 1.8m Multi Multi Multi
● ● ● ●
VGA
cable
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
2.1.1 Operating:
DVI
Cable
Audio
cable
HDMI cable
Warranty
card
● ●
Quick-start
Guide
Camera CD
Wizard
Temperature range : 0°C to 40°C
Relative humidity : 20% to 90%
2.1.2 Storage
note 1
:
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Temperature range : -20°C to 60°C
Humidity range : 10% to 90%
2.1.3 Altitude
Operating 10000 ft (Ta=50, t=24h)
Storage 40000 ft (Ta=30, t=24h )
Note 1: Temperature and relative humidity range must be in the area shown as the following figure due to panel limited
Note 2: Altitude spec must not over panel spec.
note 2
Figure 1 Absolute Ratings of Environment
2.2 Safety, EMC, Ergonomics and Compatibility Requirements
Safety & EMC
Ergonomics
Compatibility
Power Management
UL/ cUL, CE, CB, CCC, Nemko/Ergo, C-Tick (N214), VCCI,
FCC, CCC, BSMI,
Nemko/Ergo,MPR II,ISO13460-2
Windows 98/Me/2000, Windows XP, Window Vista
Energy Star V4
2.3 Electrostatic Discharge Requirements
The subject unit must withstand ±8KV for contact discharge and ±15KV for air discharge of Electrostatic Discharge
and meet the standard of IEC61000-4-2(EN55024). (without discharge on VGA/DVI/HDMI pin)
Item Condition Spec Remark
Contact discharge : +/-4KV
Electrostatic
Discharge
Acer SPEC
Contact discharge : +/-8KV
Air discharge : +/-8KV
Air discharge : +/-15KV
150pF/330ohm.
●
●
Each point 10
times.
1 time/Sec.
2.4 Reliability
The MTBF of this product shall be greater than 40,000 hours excluding the LCD panel. The LCD panel life which is
defined as the time period for the maximum luminance to reduce to 50% of the initial value is 40,000 hours minimum at
the condition of displaying an all WHITE field at mid Brightness and Contrast settings.
3. Electrical and Optical Characteristics and Performance
3.1 Main Power Supply
3.1.1
Input characteristics
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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
AC input frequency rating 100~240Vac 50~60Hz
100Vac 1.5A(max) AC Input Current
240Vac 0.8A(max)
Inrush Current
AC-DC power Efficiency
Note2. 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.
115Vac,cold star,25°C 35A (max)
230Vac,cold star,25°C 70A(max)
DC output full loading ≥80%
See Note2
3.1.2 Output characteristics
Items Condition Spec Note
Ripple and Noise
DC Output Voltage
DC output loading
capability
Hold-up time AC input: 100V~240V >10mS
Overshoot <10%
Turn on delay time <2S
+24V output <1000mv
+5V output <200mv
audio 5V output <300mv
24v loading:0.2A~1.2A
5v loading:0. 7A~1.5A
audio 5v loading:0A~1.0A
5v loading:0.04A~1.5A
14V loading: 0A
audio 5v loading:0A
Vcc5V/1.5A
<50mS
Vcc24V:23V~28V
Vcc5V:4.85V~5.35V
audio 5v:4.5V~5.5V
Vcc24V: 23V~30V Vcc5V:
4.85V~5.35V
audio 5v:4.5V~5.5V
Vcc24V/1.2A
audio 5V/1.0A
See note 2
For system active
For power saving or DC off
Power management See Table-1
Note3: Paralleled a 0.1uF ceramic Cap. And 47uF aluminum Cap. Between the end of DC loading side, Measured
band-width=20MHz. Ripple voltage of +25V is less than 1500mV when enter into burst mode.
3.1.3
Protection characteristics
Protection Condition Spec
OPP nominal AC input 55W ( min )
SCP(short circuit protection) Before fuse with auto-recovery function
OVP(Over voltage protection) Auto recovery <output capacitor voltage
Table-1
Status H-sync V-sync Video Power LED
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Power On on on active ≤ 48W Blue
off on blanked < 2W Yellow
Power Saving
Power Off -- -- -- < 1W Off
3.1.4 Backlight Power Supply
on off blanked < 2W Yellow
off off blanked < 2W Yellow
Items Specification
Panel
Lamp 4 CCFL
Input Voltage DC 23~28 V
Input current 1.1A (Typ.), 1.2A (Max.)
On/Off switch level
Brightness PWM Duty (ACM Off)
Brightness PWM Duty (ACM On)
CCFL operating Voltage 800Vrms (Typ.),
CCFL Current
SEC LTM200KT01 panel
LGD LM200WD1-TLB1 panel
5.5V≧Von≧ 2.0 V (on)
-0.3v ≤ Voff ≤ 0.8 V (off)
30%~100%
10%~100%
2.5 mA (min.)
7.0mA (Typ.)
8.0 mA (Max.)
CCFL startup voltage
Operating frequency 40~60KHz
Protect delay time > 1 second
Efficiency ≥70% (Using dummy load)
Note: Other panels please refer to the reference panel specs.
≧1700 Vrms (0˚C)
3.2 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 : 1600 x 900
Video input level : 700 mV ± 2%
Warm-up time : 30 minutes
Set brightness control and also contrast control at maximum, to measure the screen center, the light output shall ≥ 240
2
cd/m
(as panel spec)
3.3 White balance
The test standard conditions refer to Sec 3.3.(Brightness control is at 100 contrast control is at 50 )
Mode
Chromaticity Coordinate
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Cool
Warm
User
9300K 0.283 ± 0.030 0.297 ± 0.030
6500K 0.313 ± 0.030 0.329 ± 0.030
Panel While x Panel While y
3.4 Brightness uniformity
The test standard conditions refer to Sec 3.4.
x y
(4)
Note (4): 25% is for Samsung panel LTM200KT01 (first source).The second source spec follow Sec 5.1.
3.5 Audio Signal(option)
Items Specification
Input impedance
Frequency response range
Signal to noise ratio
Output power
Loading impedance
≧ 10K ohm
200Hz –20kHz
≧ 40 dB
≦1.5 W + 1.5 W(±20% tolerance), THD 10%.
4 ohm
4. Input / Output Signal Specifications
4.1 Video signals
Analog
Sync: TTL level (Input impedance ≧ 1k Ohm)
Digital : TMDS Signal: (min) ±200mVpp@24Bit
4.2 Signal Timing
VESA MODES
RGB signal: 0.7Vp-p (Input impedance = 75 Ohm)
Positive and negative sync of Separate Horizontal/Vertical Sync
Through D-SUB/DVI/HDMI connectors, this unit can support FH= 31~84 KHz, Fv=56~75Hz, with maximum pixel clock
160MHz input signal and WXGA+ output. Modes details as below:
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Horizontal Vertical
Nominal
Mode Resolution Total
640*480@60Hz 800*525 31.469 N 59.941 N 25.175
VGA
SVGA
XGA
VESA
SXGA
MAX
WXGA 1280*800@60Hz 1680*831 49.702 N 59.810 P 83.500
WXGA 1600x900@60Hz 2122x934 55.99 N 59.946 P 118.250
WXGA
640*480@72Hz 832*520 37.861 N 72.809 N 31.500
640*480@75Hz 840*500 37.500 N 75.000 N 31.500
800*600@56Hz 1024*625 35.156 P 56.250 P 36.000
800*600@60Hz 1056*628 37.879 P 60.317 P 40.000
800*600@72Hz 1040*666 48.077 P 72.188 P 50.000
800*600@75Hz 1056*625 46.875 P 75.000 P 49.500
1024*768@60Hz 1344*806 48.363 N 60.004 N 65.000
1024*768@70Hz 1328*806 56.476 N 70.069 N 75.000
1024*768@75Hz 1312*800 60.023 P 75.029 P 78.750
1152*864@75Hz 1600*900 67.500 P 75.000 P 108.000
1280*960@60Hz 1800*1000 60.000 P 60.000 P 108.000
720x400@70Hz 900*449 31.469 N 70.087 P 28.322
1280*720@60Hz 1650x750 44.955 N 59.940 P 74.176
1280*1024@60Hz 1688*1066 63.981 P 60.020 P 108.000
1280*1024@75Hz 1688*1066 79.976 P 75.025 P 135.000
640*480@66.7Hz 864*525 35.000 P 66.667 P 30.240
1152*870@75Hz 1568*909 68.775 N 75.00 N 84.520
832*624@75Hz 1152*667 49.725 N 74.550 N 57.283
1600*900@75Hz 1936*942 70.546 N 74.889 P 151.25
Nominal
Frequency
+/-0.5KHz
Sync
Polarity
Nominal
Frequency
+/-1Hz
Sync
Polarity
Pixel Clock
(MHz)
4.3 Timing requirements
The LCD monitor must be capable of displaying standard resolutions within the vertical frequency range of 56 ~ 75 Hz
and the horizontal scan range of 31~84 KHz with maximum pixel clock of 160MHz.
Vertical / Horizontal Sync polarity: positive or negative.
If input signal is out of range of horizontal 31~84 KHz or vertical 56-75Hz, or pixel clock large than 160MHz, message
“Input not Supported” is shown on screen.
4.4 DDC date
P205H Analog
0 1 2 3 4 5 6 7 8 9 A B C D E F
00 FF FF FF FF FF FF 00 04 72 D1 00 00 00 00 00
0
00 00 01 03 08 2C 19 78 EA DE 95 A3 54 4C 99 26
1
0F 50 54 BF EF 90 81 00 71 4F 81 40 81 C0 A9 C0
2
01 01 01 01 01 01 31 2E 40 00 62 84 22 30 58 A8
3
35 00 BB F9 10 00 00 1F 00 00 00 FD 00 38 4B 1F
4
54 10 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30
5
30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC
6
00 50 32 30 35 48 0A 20 20 20 20 20 20 20 00 DA
7
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P205H DVI
0 1 2 3 4 5 6 7 8 9 A B C D E F
00 FF FF FF FF FF FF 00 04 72 D1 00 00 00 00 00
0
00 00 01 03 80 2C 19 78 EA DE 95 A3 54 4C 99 26
1
0F 50 54 BF EF 90 81 00 71 4F 81 40 81 C0 A9 C0
2
01 01 01 01 01 01 31 2E 40 00 62 84 22 30 58 A8
3
35 00 BB F9 10 00 00 1F 00 00 00 FD 00 38 4B 1F
4
54 10 00 0A 20 20 20 20 20 20 00 00 00 FF 00 30
5
30 30 30 30 30 30 30 30 30 30 30 0A 00 00 00 FC
6
00 50 32 30 35 48 0A 20 20 20 20 20 20 20 00 62
7
5. Function Specifications
5.1 Keypad Function
6.1.1 Control buttons
A. When OSD un-displays, press [AUTO] and the function menu will show on the screen;
[AUTO]
[MENU]
[◄]
[►]
[e Color ]
B. When function menu displays, press [AUTO] to perform auto-adjustment;
C. When OSD displays, press [AUTO] to return to previous level menu;
D. When “e Color OSD” OSD displays, press [AUTO] to exit the OSD.
A. When OSD isn’t shown on screen, press [MENU] to enter the function menu;
B. When function menu displays, press [AUTO] to enter the main menu OSD;
C. When OSD displays, press [MENU] to perform function of menu icon that is highlight or
A. When OSD isn’t show on screen, press [◄] to enter the function menu;
B. When “MENU OSD” displays, press these keys to change the contents of an
adjustment item, or change an adjustment value;
C. When Function menu displays, press [◄] to show “Audio” OSD and decrease the
volume.
A. When OSD isn’t show on screen, press [►]to enter the function menu;
B. When “MENU OSD” displays, press these keys to change the contents of an
adjustment item, or change an adjustment value;
C. When Function menu displays:
a. Press [►] key one time to search (a port with signal in order)
D. When the volume menu displays, press [►] to increase the volume.
A. When function menu displays, press [e Color] to show “e Color OSD”, and press
again the OSD can not disappear, but the time of “e Color OSD ”disappearing is reset
to 10 seconds again.
B. When OSD disappear not including “e Color OSD”, press [e Color] to show “e Color
OSD” OSD, the OSD before disappears, but the parameters of it should be saved
enter next level menu
b. Show “source icon” at the same time, as searching that port
c. Go into next port automatically, if search the port without signal
d. Display it, if search the port with signal
[POWER] Power on or power off the monitor
5.1.2Hot Key Operation
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HOT KEY OPERATION
FUNCTION
e Color AUTO MENU
◄ ►
POWER
DESCRIPTION
FACTORY
MODE
●
ON
Press [e], 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.
5.2 OSD S
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 Fourth
Function
Menu
tructure
Control
Range
e-color
Auto --- --- --- ---
Main menu Main menu (Pictiure) --- --- ---
Audio Audio menu --- --- ---
Input --- --- --- ---
Acer eColor Management
empowering
technology
empowering
technology
--- --- ---
--- --- Standard
Default Value
User mode
Text mode 44
77
Picture
Brightness --- ---
Contrast --- ---
H.Position
V.Position
Focus
Clock
Colour Temp
--- ---
Warm --- --- Default
Cool --- --- ---
Red
0～100
0～100
0～100
0～100
0～100
0～100
0～100
Standard mode 77
Graphics mode
Movie mode
User mode
Text mode
Standard mode
Graphics mode
Movie mode
50
50
---
1
50 ○
80
97
77
50
50
50
60
56
User
Auto Config --- --- --- ---
Green
Blue
10
0～100
0～100
80
80
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OSD OSD Timeout --- ---
10～120
10
Setting
Wide Mode
DDC/CI --- --- --- ON
ACM --- --- --- OFF
Source
Language
Full --- --- Default
Aspect --- --- ---
Analog --- --- ---
Digital --- --- ---
EMEA NO-EMEA
English English --- ---
Russian
Deutsch Deutsch --- ---
Français Français --- ---
Español Español --- ---
Italiano Italiano --- ---
Dutch
Finnish
繁體中文
简体中文
日本語
--- ---
--- ---
English
--- ---
--- ---
Info
Notes; ○
Reset --- --- --- ---
Resolution --- --- --- ---
H.Freq --- --- --- ---
V.Freq --- --- --- ---
Input Type --- --- --- ---
S/N --- --- --- ---
1
Clock default 50 is for Visa timing. Others depend on timing.
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6. SOP of firmware upgrade (
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_v3.7.5.exe
Manufacture of FW IC：PMC/SST/MX
6.2 Operational steps:
Manufacturer of Scaler is Mstar)
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_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.
.
One port of ISP
program card
is connected to
PC print port.
FW IC
Model
Secondly﹐download FW software: first select “READ”, and then load FW software in Rooter (Fig.2).
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FW software
rooter
Software
Checksum
Thirdly, select “Connect” and enter ISP MODE as in the following Figure 3.
Fourthly, select “AUTO”, and keep its default value. Click “RUN” for beginning programming. There will be prompting if
programming is OK.
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Note: if programming fails or success rate is not high, click “Config” and adjust its speed in “E2PROM DEVICE SETTING”
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g
prog
K
After connecting, AC ON,
DC ON
OK
Open ISP program
OK
Choose manufacturer
and model of FW IC
OK
LOAD FW software
OK
Click Connect and enter
ISP MODE
OK
◆Flowin
chart
Click AUTO and RUN for
beginning programming
OK
Turn off power if
ramming is O
Choose Config
and adjust
programming
NG
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02. Flat Panel Specification
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