BenQ 9H.L7CLA.FBE Handleiding

BenQ Monitor 9H.L7CLA.FBE

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Applicable Country & Regions: Global

Service Manual for BenQ:

G2450HM: D-SUB + HDMI + DVI + AUDIO

P/N: 9H.L7NLA.TBW

GL2450HM: D-SUB + HDMI + DVI + AUDIO

P/N: 9H.L7CLA.TBE

GL2450HE: D-SUB + HDMI + DVI + AUDIO

P/N: 9H.L7CLA.FBE

Glossy Black Chassis Colors

Product Service Manual – Level 1~2

Version: 2nd

Date:10-31-2012

Notice:

For RO to input specific “Legal Requirement” in specific NS regarding to responsibility and

liability statements.

Please check BenQ’s eSupport web site, http://esupport.benq.com, to ensure that you have the

most recent version of this manual.

First Edition (Sep. 2011)

Content Index

Abbreviations & Acronyms ........................................................................................................................................ 3

1. About this Manual ................................................................................................................................................... 5

1.1 Important ............................................................................................................................................................ 5

1.2 Trademark .......................................................................................................................................................... 5

2. Introduction ............................................................................................................................................................. 6

2.1 RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS. .................................................... 6

2.2 Safety Warning and Notice ................................................................................................................................. 6

2.3 Compliance Statement ....................................................................................................................................... 7

3. General Description ................................................................................................................................................ 8

4. Related service information ................................................................................................................................... 8

5. Product Overview ................................................................................................................................................... 9

5.1 Monitor Specifications ........................................................................................................................................ 9

5.2 Panel Inspection Specification .......................................................................................................................... 21

Level 1 Cosmetic / Appearance / Alignment Service ............................................................................................ 26

Visual Inspection & Cleaning .................................................................................................................................. 26

F/W Upgrade SOP .................................................................................................................................................. 26

Adjustment / Alignment Procedure ......................................................................................................................... 43

Level 2 Circuit Board and Standard Parts Replacement ...................................................................................... 58

Product Exploded View .......................................................................................................................................... 58

Six Angles’ View ..................................................................................................................................................... 60

Product Disassembly/Assembly ............................................................................................................................. 61

Block Diagram ........................................................................................................................................................ 71

Schematic Diagram ................................................................................................................................................ 74

Troubleshooting ...................................................................................................................................................... 85

PCB LAYOUT ............................................................................................................................................................. 91

Appendix 1 – Screw List / Torque ........................................................................................................................... 99

Abbreviations & Acronyms

ADC Analog to Digital Converter

AFC Automatic Frequency Control: control signal used to tune to the correct frequency

BenQ BenQ Corporation

BTSC Broadcast Television System Committee

CPU Central Process Unit

CVBS Composite Video Blanking and Synchronization

DLP Digital Light Processing / Texas Instruments®

DMD Digital Micro mirror Device

DRAM Dynamic RAM

DVI Digital Visual Interface

DVI-D Digital Visual Interface-digital

DVI-I Digital Visual Interface-Integrated

EEPROM Electrically Erasable and Programmable Read Only Memory

FLASH FLASH memory

G-TXT Green Teletext

HDMI High Definition Multimedia Interface, digital audio and video interface

HP Head Phone

C Integrated IC bus

LED Light Emitting Diode

LVDS Low Voltage Differential Signal, data transmission system for high

MOSFET Metal Oxide Semiconductor Field Effect Transistor

Product specificaties

Merk:	BenQ
Categorie:	Monitor
Model:	9H.L7CLA.FBE
Kleur van het product:	Zwart
Gebruikershandleiding:	Ja
LED-indicatoren:	Stroom
Beeldscherm:	LED
Beeldschermdiagonaal:	24 "
Resolutie:	1920 x 1080 Pixels
Touchscreen:	Nee
Oorspronkelijke beeldverhouding:	16:9
Type aansluitplug:	3,5 mm
Ondersteunde video-modi:	1080p
Kijkhoek, horizontaal:	170 °
Kijkhoek, verticaal:	160 °
Meegeleverde kabels:	AC,VGA
Typische contrastverhouding:	1000:1
Snelstartgids:	Ja
Frequentiebereik horizontaal:	30 - 83 kHz
Frequentiebereik verticaal:	50 - 76 Hz
VGA (D-Sub)poort(en):	1
Aantal HDMI-poorten:	1
Bevestigingsmogelijkheid voor kabelslot:	Ja
Kabelslot sleuf type:	Kensington
Ingebouwde luidsprekers:	Ja
Gemiddeld vermogen:	4 W
Stroomverbruik (in standby):	0.3 W
Vermogensverbruik (max):	35 W
Aantal luidsprekers:	2
Hoofdtelefoonuitgangen:	1
Beeldscherm, aantal kleuren:	16.78 miljoen kleuren
HD type:	Full HD
Ingang stroom:	Ja
3D:	Nee
Audio-ingangen:	Ja
Display technologie:	LED
Responstijd:	5 ms
Pixel pitch:	0.276 x 0.276 mm
Ondersteunde grafische resoluties:	1920 x 1080 (HD 1080)
VESA-montage:	Ja
Paneelmontage-interface:	100 x 100 mm
DVI-D poorten:	1
Duurzaamheidscertificaten:	ENERGY STAR
Helderheid (typisch):	250 cd/m²
Beeldverhouding:	16:9
RGB-kleurruimte:	sRGB
Contrast ratio (dynamisch):	12000000:1
Geïntegreerde TV Tuner:	Nee
Ingebouwde camera:	Nee
Diepte ( zonder voet ):	179.12 mm
Hoogte (zonder voet ):	579.39 mm
Breedte ( zonder voet ):	436.49 mm
Gewicht (zonder voet):	4100 g
Plug and play:	Ja
On Screen Display (OSD):	Ja
Ondersteunt Windows:	Ja
Backlight type:	W-LED
Thin client geïnstalleerd:	Nee
Soort paneel:	TN+Film
Grootte beeld (horizontaal):	531.36 mm
Grootte beeld (verticaal):	298.89 mm
AC-ingangsspanning:	100 - 240 V
AC-ingangsfrequentie:	50 - 60 Hz
Stroomverbruik (typisch):	0.3 W
Bereik kantelhoek:	15 - -5 °
kantel aanpassingen:	Ja