Acer S191HQL Bedienungsanleitung

CER_LCD_S191HQL

20120602V0

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Contents

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Table of Contents

Important Safety Notice .............................................................................................................................. 1

1. Product Specification.............................................................................................................................. 2

2. OSD Menu ............................................................................................................................................ 17

3. Exploded Diagram ................................................................................................................................ 22

4. Assembly and Disassembly Procedures .............................................................................................. 25

5. Troubleshooting .................................................................................................................................... 30

6. Firmware Upgrade Process.................................................................................................................. 34

7. Writing EDID Process ........................................................................................................................... 40

8. FRU (Field Replaceable Unit) List ........................................................................................................ 46

9. Schematics and Layouts ...................................................................................................................... 49

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Safety Notice

Any person attempting to service this chassis must familiarize with the chassis and be aware of the necessary safety

precautions to be used when serving electronic equipment containing

high voltage.

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1

Important Safety Notice

Product Announcement:

This product is certificated to meet RoHS Directive and Lead-Free produced definition. Using approved

critical components only is recommended when the situation to replace defective parts. Vender assumes no

liability express or implied, arising out of any unauthorized modification of design or replacing non-RoHS

parts. Service providers assume all liability.

Qualified Repairability:

Proper service and repair is important to the safe, reliable operation of all series products. The service

providers recommended by vender should being aware of notices listed in this service manual in order to

minimize the risk of personal injury when perform service procedures. Furthermore, the possible existed

improper repairing method may damage equipment or products. It is recommended that service engineers

should have repairing knowledge, experience, as well as appropriate product training per new model

before performing the service procedures.

NOTICE:

! To avoid electrical shocks, the products should be connect to an authorized power cord, and turn off the

master power switch each time before removing the AC power cord.

! To prevent the product away from water or explosed in extremely high humility environment.

! To ensure the continued reliability of this product, use only original manufacturer’s specified parts.

! To ensure following safety repairing behavior, put the replaced part on the components side of PWBA,

not solder side.

! To ensure using a proper screwdriver, follow the torque and force listed in assembly and

disassembly procedures to screw and unscrew screws.

! Using Lead-Free solder to well mounted the parts.

! The fusion point of Lead-Free solder requested in the degree of 220°C.

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2

1. Product Specification

1.1 Scope:

LCD BM185WH2-T2BB

LM185WH2-T2BB is a Color Active Matrix Liquid Crystal Display with an integral Light Emitting Diode (LED)

backlight system. The matrix employs a-Si Thin Film Transistor as the active element. It is a transmissive type

display operating in the normally white mode. It has a 18.5 inch diagonally measured active display area with HD

resolution (768 vertical by 1366 horizontal pixel array) Each pixel is divided into Red, Green and Blue sub-pixels or

dots which are arranged in vertical stripes. Gray scale or the brightness of the sub-pixel color is determined with

a 8-bit gray scale signal for each dot, thus, presenting a palette of more than 16,7M colors with

Advanced-FRC(Frame Rate Control). It has been designed to apply the interface method that enables low power,

high speed, low EMI. FPD Link or compatible must be used as a LVDS(Low Voltage Differential Signaling) chip. It is

intended to support applications where thin thickness, wide viewing angle, low power are critical factors and graphic

displays are important. In combination with the vertical arrangement of the sub-pixels, the LM185WH2-T2BB

characteristics provide an excellent flat panel display for office automation products such as monitors

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3

Optical Characteristics:

Optical Characteristics(For LCD BM185WH2-T2BB)

ParameterSymbol

Values

UnitsNotes

MinTypMax

ContrastRatioCR400600‐

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1

(PR‐880)

SurfaceLuminance,whiteLWH160200‐ cd/m22

(PR‐880)

LuminanceVariationWHITE9P75‐ ‐ %3

(PR‐880)

ResponseTime

RiseTimeTrR‐1.12.6ms4

(RD80S)

DecayTimeTrD‐3.97.4ms

ColorCoordinates

[CIE1931]

RED

Rx

Typ

‐0.03

0.627

Typ

+0.03(PR‐650)

Ry0.347

GREEN

Gx0.339

Gy0.621

BLUE

Bx0.154

By0.050

WHITE

Wx0.313

Wy0.329

ViewingAngle(CR>5)

5

(PR‐880)



xaxis,right(=0°)r 4550Degree

xaxis,left(=180°)l 4550

yaxis,up(=90°)u2025

yaxis,down

(=270°)d4045



ViewingAngle(CR>10)

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xaxis,right(=0°)r 4045Degree

xaxis,left(=180°)l 4045

yaxis,up(=90°)u1015

yaxis,down(=270°)d3035

Crosstalk



1.5%6

(PR880)

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4

1.2 General Requirements:

1.2.1 Test Condition:

All tests shall be performed under the following conditions, unless otherwise specified.

Warm up time > 30 min.

AC supply voltage 230V± 5%, 50± 3 Hz

Ambient temperature 20C 5C

Humidity 65%20%

Display mode 1440x900,60Hz,PixelClock：106.5MHZ,allwhite

e-color mode Set to “User” mode

Contrast control Set to The value under user mode, which allows that the

brightest two of 32 linear distributed gray-scales (0～700mv)

can be distinguished.

Color temperature 6500°K

Brightness control The value under user mode

Analog Input signal 700 mVss

Picture position and size Factory preset value,

Viewing angle 90 ° H and V

Viewing distance 40 cm for LCD performance, 20 cm for LCD failures

Ambient illumination Dark room (< 1 cd/m2)

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5

1.2 General Requirements:

1.2.1 Test Condition:

All tests shall be performed under the following conditions, unless otherwise specified.

Warm up time > 30 min.

AC supply voltage 230V± 5%, 50± 3 Hz

Ambient temperature 20C 5C

Humidity 65%20%

Display mode 1366 x 768, 60 Hz, all white

e-color mode Set to “User” mode

Contrast control Set to The value under user mode, which allows that the

brightest two of 32 linear distributed gray-scales (0～700mv)

can be distinguished.

Color temperature 6500°K

Brightness control The value under user mode

Analog Input signal 700 mVss

Picture position and size Factory preset value,

Viewing angle 90 ° H and V

Viewing distance 40 cm for LCD performance, 20 cm for LCD failures

Ambient illumination Dark room (< 1 cd/m2)

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1.2.2 Test Equipment: CHROMA 6630.

1.3 Electrical:

This section describes the electrical requirement of the monitor. Below is the block diagram.

Led drive

19V

AC-IN

100V-240V

Flat Panel and

LED backlight

Main Board

Video signal, DDC

HOST Computer

Key Board

Adapter

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6

The LCD monitor will contain a main board and a key board which house the flat panel control logic,

brightness control logic and DDC. The adapter will provide AC to DC voltage to drive the main board chips

each voltage. The function key board is used for OSD control, monitor power ON/OFF and the LED indicator

for power status.

LCD Panel

Driving system TFT Color LCD

Pixel pitch 0.10*RGB(H)mm x 0.30(V)mm

Contrast Ratio 920 g (Typ.)

Response time 5ms (Typ.). 10ms(max)

Luminance of White 200 cd/m2 ( Center 1Point, typ)

Input

Separate Sync. H/V TTL

H-Frequency 30kHz-60kHz

V-Frequency 40-75Hz

Viewing angle CR>10 , R/L 90(Typ.), U/D 50(Typ.)

Display mode 1366 x 768@60Hz

EPA ENERGY STAR®

ON Mode < 30W

OFF Mode < 2W

Power Source 100 V ~ 240 V, 50 3Hz, 60 3Hz

Environmental

Considerations

Operating Temp: 0° to 40°C

Storage Temp: -20° to 60°C

Operating Humidity: 15% to 90%

Storage Humidity: 15% to 90%

Operating Altitude: 12,000 feet

Storage Altitude: 40,000 feet

Power line surge No advance effects (no loss of information or defect) with a maximum of 1 half-wave

missing per second

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7

1.3.1 Interface Connectors:

1.3.1.1 Power Adaptor and Connector:

The AC inlet connector shall be an IEC 320-C13 male power receptacle for connection to mains power. The

power cord shall be gray or black with length of 1.8m + 10cm/-0cm. The power cord type is different from

regions.The adapter output cable length of 150036mm,voltage is 19v and current is 1.58A.

1.3.1.2 Analog Connector and Cable: The analog signal cable shall be Gray or black and 1.8m + 10cm/-0cm.

A. D

SUB

B. LED backlight Connector

Connector

CN803

C. Key Board Connector

Connector

CN401

Pin Signal Pin Signal

1 Feedback1 6 LED drive

2 Feedback2 7 NC

3 NC 8 NC

4 NC 9 NC

5 LED drive 10 Feedback3

Pin Signal Pin Signal

1 GND 4 POWER KEY

2 LEDA 5 KEY2

3 LEDG 6 KEY1

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8

D. Flat Panel Connector

Connector

CN409

Pin Signal Pin Signal

1 GND 26 POL

2 GND 27 CSC

3 GND 28 H2DOT

4 GND 29 GND

5 GND 30 ICLK_RESET

6 GND 31 ICLK1

7 GND 32 ICLK2

8 GND 33 ICLK3

9 GND 34 ICLK4

10 GND 35 IVDD-O

11 GND 36 IVDD-E

12 LVCLK- 37 FLK2

13 LVCLK+ 38 FLK1

14 GND 39 GND

15 LV2- 40 SDA

16 LV2+ 41 SCL

17 GND 42 GND

18 LV1- 43 VIN

19 LV1+ 44 VIN

20 GND 45 VIN

21 LV0- 46 VIN

22 LV0+ 47 VIN

23 GND 48 VIN

24 SOE 49 GND

25 POL2 50 GND

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