Acer H243H User Manual

Acer	Acer –LCD-H243H

Service Manual

LCD Monitor Acer H243H

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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 H243H 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:

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 are 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 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

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’ manual.

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01 Product Specification

1. General:

H243H is designed with LVDS interface and VGA/DVI-D/HDMI input, it featured with embedded universal AC power supplies and audio input. 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 into1920x1080full screen display. The image can be adjusted through OSD control. It support HDCP and color management function.

1.1 Main Features

Maximum resolution	: 1920(x3) x 1080 @ 60Hz
Back light system	: 4 CCFL (top & bottom edge side)
Pixel pitch	: 276.75 um (H) x 276.75 um (V)
Display area	: 531.36mm (H) x 298.89mm (V)
Brightness	: 300cd/m² (TYP.)
Contrast ratio	: 1000׃1 (TYP.)	(1)
DCR	: 40000:1 (Max)
Response time (Tr+Tf)	: 5ms (TYP. ON/OFF)	(2)
	2ms (Gray to Gray)
Viewing angle	: 170° (H)/ 160°(V), (TYP.)	(3)
Input interface	: Analog (D-sub 15 pin)
	Digital Option (DVI-D 24 pin & HDMI 19Pin)
Power management	: Compatible with VESA DPMS
Plug & Play	: VESA DDCCI
OSD language	: English, French, Spanish, Italian, Deutsch,

Simplified Chinese, Traditional Chinese, Japanese (Dutch, Finnish, Russian depend on sale region)

Universal AC power supply

Note (1)(2)(3): This item spec depend on the LCD panel.

1.2 Accessories

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)
User manual	: English (640Mb CD)
Warranty card	:
DVI cable (option)	: 1.8 m. (18+1 pin, black cable with white connector)
HDMI cable (option)	: 1.8 m. (19 pin, black cable with white connector)

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:
Temperature range		: 0°C to 50°C
Relative humidity		: 5% to 90%
2.1.2	Storage note 1:

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Temperature range	: -20°C to 60°C
Humidity range	: 5% to 90%

2.1.3Altitude note 2

Operating	10000 ft (Ta=50, t=24h)
Storage	30000 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.

2.2	Safety, EMC, Ergonomics and Compatibility Requirements
		Safety & EMC	MET, CB, Bauart, CCC, FCC, CE, VCCI-B
		Ergonomics	MPRII ISO13406-2
		Compatibility	Windows 95/98/Me/2000, Windows XP, Window Vista
		Power Management	Energy Star
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 pin)
2.4	Reliability

The MTBF of this product shall be greater than 25,000 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

3.1.1AC Input Voltage Range

It is a universal type and the input voltage range is from 100 ~ 240Vrms

3.1.2 AC Input Current

1.5A (max) at 100VAC input

0.8A (max) at 240VAC input

AC Frequency Range

The frequency range is from 50Hz to 60Hz

Inrush Current

a.40A max at cold-start, 25°C, DC output full-loading and 100Vac input

b.60A max at cold-start, 25°C, DC output full-loading and 240Vac input

Regulator Efficiency

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≥75%

(DC output full loading and nominal AC input voltage range)

Ripple and Noise

Total composite ripple and noise less than 800mV for +25V output, and less than 150mV for +5V output, and 50mV for +3.3V output tested by DC loading side parallel with a 47uF/EC and 0.1uF/Ceramic. Capacitors and measured band-width with DC-20MHz

DC Output Voltage and Current

3.1 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	: 1920 x 1080
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 BL ≥ 240 cd/m2 (as panel spec).

3.2 White balance

The test standard conditions refer to Sec 3.1.( Brightness and contrast are under default value )

Mode		Chromaticity Coordinate
		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

3.3Brightness uniformity

The test standard conditions refer to Sec 3.1.

Min. luminance of nine points (backlight)		≥75%
Max.luminance of nine points (backlight)
	L/2		L/10
4	5	6	W/10
1	2	3
7	8	9
			W/2
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4.Input / Output Signal Specifications

4.1Video signals

Analog RGB signal:	0.7Vp-p	(Input impedance = 75 Ohm)
Sync:	TTL level	(Input impedance		1k Ohm)
Positive and negative sync of Separate Horizontal/Vertical Sync
Digital :	TMDS Signal:		(min)	±200mVpp@24Bit

4.2 Signal Timing

Through D-SUB/DVI connectors, this unit can support FH= 31~80 KHz, Fv=55~76Hz, with maximum pixel clock 165MHz input signal and WSXGA+ output. Modes details as below:

VESA MODES

	Mode	Resolution	Total	H Frequency	V Frequency	Pixel Clock
						(MHz)
	VGA	640x480	800 x 525	31.469	59.941	25.175
		640x480	832 x 520	37.861	72.809	31.500
		640x480	840 x 500	37.500	75.000	31.500
		800x600	1024 x 625	35.156	56.250	36.000
	SVGA	800x600	1056 x 628	37.879	60.317	40.000
		800x600	1040 x 666	48.077	72.188	50.000
		800x600	1056x625	46.875	75.000	49.500
	XGA	1024x768	1344x806	48.363	60.004	65.000
		1024x768	1328x806	56.476	70.069	75.000
		1024x768	1312x800	60.023	75.029	78.750
	VESA	1152x864	1600x900	67.5	75	108
		1280x960	1800x1000	60	60	108
	SXGA	1280x1024	1688x1066	63.981	60.020	108.000
		1280x1024	1688x1066	79.976	75.025	135.000
	VESA	1280x720	1650x750	44.955	59.940	74.176
	WXGA	1280x800	1680x831	49.702	59.810	83.500
		1360x768	1792x795	47.712	60.015	85.500
	WXGA+	1440x900	1904x931	55.935	59.887	106.500
		1440x900	1936x942	70.635	75.000	136.750
	SXGA+	1400x1050	1864x1089	65.317	59.978	121.75
	WSXGA+	1680x1050	2240*1089	65.290	59.954	146.250
	UXGA	1600x1200	2160x1250	75.000	60.000	162.000
		1920x1080-R	2080x1111	66.587	59.934	138.50

IBM MODES

	EGA	720x400	900x449	31.469	70.087	28.322
			MAC MODES
	VGA	640x480	864x525	35	66.66	30.24
	SVGA	832x624	1152x667	49.722	74.55	57.28
	SXGA	1152x870	1568x909	68.700	75.000	84.520

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

4.3Timing requirements

The LCD monitor must be capable of displaying standard resolutions within the vertical frequency range of 55 ~ 76 Hz and the horizontal scan range of 31 ~ 80 KHz with maximum pixel clock of 190MHz.

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Vertical / Horizontal Sync polarity: positive or negative.

If input signal is out of range of horizontal 31~80 KHz or vertical 55-76Hz, or pixel clock large than 165MHz, message “Input Not Supported” is shown on screen.

4.1DDC data

H243H Analog

	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	74	00	01	01	01	01
1	00	00	01	03	68	35	1D	78	EA	60	85	A6	56	4A	9C	25
2	12	50	54	AF	CF	00	81	80	71	4F	95	00	95	0F	A9	40
3	B3	00	01	01	01	01	1A	36	80	A0	70	38	1F	40	30	20
4	35	00	13	2A	21	00	00	1A	00	00	00	FC	00	48	32	34
5	33	48	0A	20	20	20	20	20	20	20	00	00	00	FD	00	38
6	4C	1F	53	12	00	0A	20	20	20	20	20	20	00	00	00	FF
7	00	30	30	30	30	30	30	30	30	30	30	30	30	30	00	CS

H243H DVI

	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	74	00	01	01	01	01
1	00	00	01	03	80	35	1D	78	EA	60	85	A6	56	4A	9C	25
2	12	50	54	AF	CF	00	81	80	71	4F	95	00	95	0F	A9	40
3	B3	00	01	01	01	01	1A	36	80	A0	70	38	1F	40	30	20
4	35	00	13	2A	21	00	00	1A	00	00	00	FC	00	48	32	34
5	33	48	0A	20	20	20	20	20	20	20	00	00	00	FD	00	38
6	4C	1F	53	12	00	0A	20	20	20	20	20	20	00	00	00	FF
7	00	30	30	30	30	30	30	30	30	30	30	30	30	30	00	CS

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

5.1Panel general specifications

A General specifications

Supplier	AUO
	M240HW01-V0
Model name
	531.36 × 298.89
Display Area
	276.75(Per one triad) × 276.75
Pixel Pitch
Display Colors:	16.7M colors (RGB 6-bit + Hi_FRC)

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		1920 × 1080
	Number of Pixel
		R.G.B. Vertical Stripe
	Pixel Arrangement
		300 cd/m2 (TYP.)
	Brightness
		1000 (TYP.)
	Contrast Ratio
		170(Horizontal) / 160(Vertical)
	Viewing Angle
		Normally White
	Display Mode
		75
	Frame rate
		5ms (TYP. ON/OFF) / 2ms (Gray to Gray)
	Response Time
		Anti-Glare, 3H
	Surface Treatment
		4
	Lamp
		556.0(W) ×323.2(H) ×16.65(D) (TYP.)
	Outline Dimension

5.2Keypad Function

5.2.1Control buttons on the front bezel

	CONTROL KEY		KEYS FUNCTION
	[POWER]	Power on or power off the monitor
		A. When “Main OSD” displays, press these keys to change the contents of an adjustment
	[►], [◄]		item, or change an adjustment value
		B. When “Main OSD” un-displays, press [►] to show “Audio” OSD and increase the
			volume, press [◄] to show “Audio” OSD and decrease the volume .
			A. When “Main OSD” un-displays, press [MENU] to enter OSD interface.
	[MENU]		B. When “Main OSD” displays, press [MENU] to perform function of menu icon that is
			highlight or enter next level menu.
			A. When “Main OSD” un-displays, press [AUTO] to perform auto-adjustment
	[AUTO]		B. When “Main OSD” displays, press [AUTO] to return to previous level menu
			C. When “Empowering Technology OSD” displays, press [AUTO] to exit the OSD
			A. When “Main OSD” un-displays, press [e Color] to show “Empowering Technology
	[e Color ]		OSD”.
			B. When “Main OSD” displays, press [e Color] to exit the OSD, and to show “Empowering
			Technology OSD”
			A. Press ”input key” one time to search (a port with signal in order)
	[Input select]		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

5.3Hot Key Operation

HOT KEY OPERATION

FUNCTION

e Color AUTO MENU ◄	► POWER	DESCRIPTION

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								Press [e], and then press
	FACTORY							[POWER] for DC power on.
		●					ON	OSD menu will be shown with
	MODE							“F” on the left top. Select “F” for
								entering factory mode.

5.4OSD 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	Fourth	Control	Default Value
					Range
				User
		Acer e color	empowering Technology	Text
					---	Standard
				Standard
		Management
				Graphics
				Movie
						User mode	77
						Text mode	44
		Brightness	---	---	0 100
						Standard mode	77
						Graphics mode	97
						Movie mode	77
						User mode	50
						Text mode	50
	Picture	Contrast	---	---	0 100
						Standard mode	50
						Graphics mode	60
						Movie mode	56
		H. Position			0 100	50
		V. Position	---	---	0 100	50
		Focus			0 100	---
		Clock			0 100	50 (1)
			Warm	---	---	---
			Cool	---	---	---
		Color Temp		Red	0 100	80
			User	Green	0 100	80
				Blue	0 100	80
		Auto Configure	---	---	---	---
		H. Position	---	---	0 100	Depending on the	keypad
						position
	OSD	V. Position	---	---	0 100	3
		OSD Timeout	---	---	10 120	10
		Wide Mode	Full	---	---	Full
	Setting		Aspect	---	---
		DDC/CI	ON	---	---	ON

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			OFF
		ACM	ON		---	---		OFF
			OFF
			VGA		---	---
		Input						---
			DVI		---	---
			HDMI		---	---
			EMEA	NO-EMEA	---	---
			English	English	---	---
			Russian		---	---
			Deutsch	Deutsch	---	---
		Language	Français	Français	---	---		English
			Español	Español	---	---
			Italiano	Italiano	---	---
			Dutch		---	---
			Finnish		---	---
		Reset	---		---	---		---
		Resolution	---		---	---
		H. Freq	---		---	---
	Info							(2)
		V. Freq	---		---	---
		Input Type	---		---	---
		S/N	---		---	---

Notes: (1) Clock default 50 is for Visa timing. Others depend on timing.

(2) Depend on timing & S/N

6. SOP of firmware upgrade (Manufacturer of Scaler is Mstar)

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

6.2Operational steps:

1.Connection: connect PC to PCBA with signal cable, and then keep AC and DC in open state.

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One port of ISP program card is connected to PC print port.

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.

FW IC

Model

Secondly download FW software: first select “READ”, and then load FW software in Rooter (Fig.2).

FW software rooter

Software

Checksum

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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”

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

Click AUTO and RUN for beginning programming

OK

NG

Turn off power if programming is OK

Flowing chart

Choose Config and adjust programming

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2. Flat Panel Specification

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