Manuel d'utilisation / d'entretien du produit GL2450HE du fabricant BenQ
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1 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.
2 Content Index Abbreviations & Acrony ms ...................................................................................................... .................................. 3 1. About th is Manual .......................................
3 Abbreviations & Acronyms A ADC Analog to Digital Converter AFC Automatic Frequency Control: control si gnal used to tune to the correct fre quency B BenQ BenQ Corporation BTSC Broadcast Televisi.
4 NC Not Connected NVM Non Volatile Memory: IC containing TV related data (for example, options) O OSD On Screen Display P PC Personal Computer PCB Printed Circui t Board (or PWB) R RC Remote Control transmitter RGB Red, Green and Blue. The primary color sig nals for TV.
5 1. About this Manual The purpose of Service Manual is to prov ide a guide line to engineers to repair dif ferent models. The appearance and capability is introduced in this Service Manual. It is be tter for re pair engineer to have a rou gh idea of this model through reading the Service Manual.
6 2. Introduction This section cont ains general service information, pl ease read through carefully . It should be st ored for easy access place. 2.1 RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS.
7 Operation 1. T o protect your eyesight, please refer to the user manual to set the optimal screen resolution and the viewing distance. 2. T o reduce eye fatigue, take a break on a regular basis while using the monitor . Avoid t aking either one of the following actions for a lo ng time.
8 3. General Description This new LCD (Liquid Cry stal Display) monitor BenQ G2450HM&GL2450HM/GL24 50HE offers numerous features and functions, for example: Panel T ype: TN + CCFL (For G2450HM.
9 5. Product Overview 5.1 Monitor Specifications G2450HM GL2450HM/GL2450HE Conf. 2 D-sub (include compone nt source) + DVI-D + HDMI + spea ker Conf. 3 D-sub (include compone nt source) + DVI-D + HDMI + spea ker Panel / Display Panel T ype (TN / V A / IPS) TN + CCFL TN + LED Panel Size 24"W(16:9) 24"W(16:9) Display Area 531.
10 Audio line in Y es Y es Earphone Jack Y es Y es Power Supply V olt age Rating AC: 100~240V (Built-in) AC: 100~240V (Built-in) Power-On Mode <35W (max) <35W (max) S tandby Mod e <0.3W (max) <0.3W (max) Power Of f Mode <0.3W (max) <0.
11 5.1.1 Certification G2450HM Region Shipment Country (Pls select) Country Certification / Requirement Remark Request fo r Certification (Pls select) Certification (Black is mandatory and blue is vol.
12 and VCCI V J-Moss GP Vender provide relevant information and report Class Level: ★ ★★ ★★★ PC3R GP Vender provide relevant information and report V If VOC test is requested, please provide 1 sample for testing. Meet the PC3R requirement of 2009 version.
13 V Taiwan V BSMI Safety & EMC V Including BSMI certificate, BSMI report and BSMI authorization letter for BENQ if the applicant of BSMI certificate is vendor and vendor will perform the clearance for BenQ.
14 Class Level: gold silver cuprum EPEAT GP Vender provide relevant information and report V V Mexico V NOM Safety V European Union V Member countries of EU V CE Safety & EMC V V EuP GP Vender pro.
15 International V International V BenQ ecoFACTS GP Vender provide relevant information and report Follow ecoFACTS Checklist in RFQ International V All V Energy Star GP V Including Test Report by EPA recognition of Accreditation Laboratory and Certificate by EPA recognition of Certification Body (CB).
16 GL2450HM//GL2450HE Region Shipmen t Country (Pls select) Country Certification / Requirement Remark Request fo r Certification (Pls select) Certification (Black is mandatory and blue is voluntary) .
17 and VCCI V J-Moss GP V ender provide relevant information and report Class Level: ★ ★★ ★★★ PC3R GP V ender provide relevant information and report V If VOC test is requested, please provide 1 sample for testing. Meet the PC3R requirement of 2009 version.
18 V T aiwan V BSMI Safety & EMC V Including BSMI certificate, BSMI report and BSMI authorization letter for BENQ if the applicant of BSMI certificate is vendor and vendor will perform the clearance for BenQ.
19 Class Level: gold silver cuprum EPEA T GP V ender provide relevant information and report V V Mexico V NOM Safety V European Union V Member countries of EU V CE Safety & EMC V V EuP GP V ender .
20 International V International V BenQ ecoF ACTS GP V ender provide relevant information and report Follow ecoF ACTS Checklist in RFQ International V All V Energy S tar GP V Including T est Report by EP A recognition of Accreditation Laboratory and Certificate by EP A recognition of Certification Body (CB).
21 5.2 Panel Inspection Specification 1. Scope: 1.1 The incoming inspection standards shall be appli ed to TFT-LCD Modules (hereinafter called "Modul es") that supplied by AU Optronics Corporation (hereinafter called "seller").
22 Major defects: A major defect is a defect t hat is likely to result in failure, or to reduce materially the usability of the product for its intended purpose.
23 Test Pattern Defect Full Black For bright dot(s) Full White For dark dot(s) Monotone Red /Green /Blue For bright and dark dot(s) Note 4: The judgment criteria of particle occurre d bright dot is the same as bright dot judgment criteria. Note 5: The display uniformity (general mura) symptoms will use 8 % ND Filter.
24 Note 1: When L>=2W, defect count as liner defect. Note 2: D=1/2(W+L) Note 3: To verify the responsibility of following defects was caused by supplier, the IQC che cks as requested on above items before mass productio n such as the Po larizer Scratch, Gap Mura, TFT Glass broken…et c.
25 7. Inspection judgment: 7-1 The judgment of the shipped lot (acceptance or rejection) should follow the sampling plan of MIL-STD-105E, single sampling, norm al inspection, level II. 7-2 If the number of defects is equal to or less than the applicable acceptan ce level, the lot shall be accepted.
26 Level 1 Cosmetic / Appear ance / Alignment Service V isual Inspection & Cleaning Cleaning. Always unplug your monitor from the wall outl et before cleaning. Clean the LCD monitor surface with a lint-free, non-abrasive cloth. Avoid using any liquid, aerosol o r glass cleaners.
27 2.Connection 3.Inst all USB driver . 3.1. When insert the USB cable to PC USB port, will pop up a Hardware Wizard t o help you install the USB driver if you use this ISP board first time. Y ou can inst all it successfully as the below instruction step by step.
28 4. Inst all the ISP tool. 4.1.Copy the three files in one folder . Click “Finish” to complete the USB serial port driver install ation..
29 4.2. Double-click to run the ISP tool. 4.3. Set the parameters in “Device” win dow . T ick “WP Pin pull to high during ISP”..
30 4.4. Connect to the monitor . Click “Connect”. If the tool communicate with monitor succ essfully , the tool will detect the flash type of monitor .
31 4.6. Set the restore address. Please fill “ 0x03F000 ” and “ 4KB ” as follow . 4.7. Set parameter in “Auto” win dow . If you have se t “Restore address”, please t ick “Restore Data ”.
32 4.8.Processing of upgrade. After clicki ng “Run”, the tool st art to program. It is forbided to power of f monitor or switch of f connection during program ming. 4.9.Successful upgrade. When upg rad e successful, there will be green Pass letter appearing.
33 5. Check the FW version af ter upgrade. （ T ake below figure as an instance ） (1)Connect signal source and po wer cable to monitor and DC of f it. (2) Press “menu” key and “power on” key synch ronously as below figure. When the screen lig hts, release the two buttons and then press “menu” again to open bel ow factory menu.
34 6. T roubleshooting. 6.1. Can’t Entry ISP Mode!! The method to cure it: (1) Click “Config” to check the port type is USB. If no selection of USB as belo w please disconnect the JIG and then link it again. (2) Check the cable s and ISP JIG are connected fluently .
35 Upgrade by 715GT034-D 1. Materials list L P T c a b l e ( m a l e t o m a l e ) V G A c a b l e 1 2 V D C a d a p t e r TPV P/N: N/A TPV P/N: 089G728 GAA DB TPV P/N: ADPC12416BEP ISP JIG: 715GT034-D PC Monitor L P T d r i v e r I S P t o o l : V 4 .
36 2. Connection 3.Inst all LPT driver . 3.1. Double-click to install it. And restart PC after that. 4. Inst all the ISP tool. 4.1.Copy the three files in one folder .
37 4.2. Double-click to run the ISP tool. 4.3.Click the “Config” to set the relevant paramete rs as below . ( 1 ) . C l i c k “ C o n f i g ” i t e m . (2).Select “AOC” and click “Apply” in JI G column. (3).The speed should be less than 50 kHz.
38 4.4. Set the parameters in “Device” win dow . T ick “WP Pin pull to high during ISP”. 4.5. Connect to the monitor . Click “Connect”. If the tool communicate with monitor succ essfully , the tool will detect the flash type of monitor .
39 4.6. Load the F/W you want to upgrade. 4.7. Set the restore address. Fill “0x03F000” and “4KB” for BENQ G2450HM/GL 2450HM//GL2450HE..
40 4.8. Set parameter in “Auto” win dow . If you have se t “Restore address”, please t ick “Restore Data ”. 4.9.Processing of upgrade. After clicki ng “Run”, the tool st art to program. It is forbided to power of f monitor or switch of f connection during program ming.
41 4.9.Successful upgrade. When upg rad e successful, there will be green Pass letter appearing. 5. Check the FW version af ter upgrade. (1)Connect signal source and po wer cable to monitor and DC of f it. (2) Press “menu” key and “power on” key synch ronously as below figure.
42 (3)If the version is right, please do factory reset in user menu as below , or re-up grade F/W as the above steps. The reset will turn of f burn in mode. 6. T roubleshooting. 6.1. Can’t Entry ISP Mode!! Methods to cure: (1) Check the cable s and ISP JIG are connected fluently .
43 Adjustment / Alignment Procedure The Control Panel 1. AUTO : Adjusts vertical position, ph ase, horiz ontal position and pixel clock automatically. 2. MENU key: Activates OSD main menu and return to the previou s menu or exit OSD. 3. ▲ / Volume key: For Up/Increase adju stment.
44 Mode hot key Press the ▼ key continually to switch be tween the 6 modes for the main window, including Standard , Movie , Game , Photo , sRGB, and Eco .
45 Display Menu Available menu options may vary depending on the input so ur ces, functions and settings. Menu options t hat are not available will become grayed out. 1. Press the MENU key to display the main menu. 2. Press the ▲ or ▼ keys to select DISPLAY and then press the ENTER key to enter the menu.
46 Picture Menu Available menu options may vary depending on the input so ur ces, functions and settings. Menu options t hat are not available will become grayed out. 1. Press the MENU key to display the main menu. 2. Press the ▲ or ▼ keys to select PICTURE and then press the ENTER key to enter the menu.
47 User Mode: The blend of the Red, Green and Blue primary co lors can be altered to change the color tint of the image. Go to the succeeding Red , Green , and Blue menus to change the settings. Press the ▲ or ▼ keys and the ENTER key to select Red , Gre en , or Blue .
48 Item Function Operation Range Picture Mode Selects a picture mode tha t best suits the type of images shown on the screen. • Standard - for basic PC a pplication. • Movie - for viewing videos. • Game - for playing video games. • Photo - for viewing still images.
49 Color Format Determines the color space (RGB or YUV) based on the following detected video signal: • D-Sub (VGA) from PC: The default Color Format is RGB. • D-Sub (Component) from a video device: The default Color Format is YUV. You might need to manually set the Color Format if colors shown on t he monitor screen do not display properly.
50 decrease the volume. Mute Mutes the audio input Press the ▲ or ▼ keys to change the settings. • ON • OFF Audio Select (for models with HDMI inputs) Allow users to select the audio s ource or let the monitor detect it automatically Press the ▲ or ▼ keys to change the settings.
51 from those shown on the right, depending on the product supplied in your region. • Polish • Japanese • Czech • Traditional Chinese • Hungarian • Simplified Chinese • Serbo-Croatian • Romanian • Dutch • Russian • Swedish • Portuguese H.
52 by hot key. Auto Power off Sets the time to power off the monitor automatically in power saving mode. Press the ENTER key to select this option. Press the ▲ or ▼ keys to change the settings. • OFF • 10min. • 20min. • 30min. Information Displays the current monitor property settings.
53 Display Timing Table For G2450HM/GL2450HM//GL2450HE Note: P: Preset Mode NP: None Preset Mode FS: Fail Save Mode (show “out of range”, but still can see picture) O: Out of Range (only show “o.
54 P 1024x768 80.00 60.24 74.93 DMT -8 P 1024x768 78.75 60.02 75.03 DMT -9 FS 1024x768 94.50 68.68 85.00 DTV P 1 152x720 66.75 44.86 60 NP 1 152x864 94.50 63.85 70.01 DMT -10 P 1 152x864 108.00 67.50 75.00 GTF-7 FS 1 152x864 1 19.651 77.09 85.00 P 1 152x870 100.
55 P 1440x900 136.75 70.6 75 P 1600X900-R 97.75 55.54 59.98 P 1600x1000-R 108.5 61.648 59.910 CVT -10 NP 1600x1000 132.25 62.14 59.87 NP 1600x1000 169.25 78.356 74.83 CVT -2 NP 1600x1200-R 130.25 74.01 59.92 DMT -14 P 1600x1200 162.00 75.00 60.00 NP 1600x1200 175.
56 H D M I C E A - 8 6 1 D General Parameters Horizo ntal V -Sync Parameters Freq. Code HDMI I/p Pixel Clock (unit: MHz) H-Sync (unit: kHz) V- S y n c (unit: Hz) H-T otal H-Active H Blank V -T otal V - Active V Blank 59.94Hz 1 Y Prog 25.175 31.469 59.
57 Factory OSD Menu The service page ne eds to include that information: Model name, S/N, V ender , panel, scalar , F/W version, Monitor on time, Backlight on time. 1. Trigger method: Press “Menu” key and Powe r on. 2. Press the Menu key will display the service page 3.
58 Level 2 Circuit Board and Standard Parts Replacement Product Exploded V i ew Note: Th e parts informatio n listed below are for reference only , and are subject to change without notice. Please go to http://cs.tpv .com.c n/hello1.asp for the latest information.
59 15 SPEAKER 1 PCS 16 PLA TE 4 PCS 17 REAR COVER 1 PCS 18 HINGE 1 PCS 19 ST AND 1 PCS 20 BASE 1 PCS 21 FOOT P AD 6 PCS SCREW Item Part No. Description Qty Unit 6 0D1G1030 6120 POWER BOARD & MAINF.
60 Six Angles’ V iew.
61 Product Disassembly/Assembly Disassembly 1) Remove the base Place the monitor face down on a smo oth surface. Be ca reful to avoid scratch and injury during the process of uninstall. And then remove the base. 2) Remove the st and. Press the hole; pull at the stand strongly at the same time.
62 3) Remove the rear cover Remove the screw in red to remov e the rear cover: Pull apart bezel & rear cover. Note: Be careful, the BEZEL CLIP is easy to break.
63 Note: The positions of the clip s on the rear cover are as follow . There are some small gaps bet w een CLIPS. It’ s suggested to sep arate bezel and rear cover from the gap s. 4) Remove the main frame from the p anel. Remove the black rubberized fab ric and aluminum foil; pull out the wire to remove the mainframe.
64 5) Remove the AC cov er from the mainframe. 6) Remove the boards from the main frame. Remove screws in red; remove the black rubberized fabric, and then pull out the wire. The power board The main boar d Connect main board and speaker. Connect main board and power board.
65 7) Remove the speak er . Pull at the foot of the speaker strongly as follow picture. 8) The p anel 9) The bezel. The foot of the s p eaker The foot of the s p eaker The foot of the s p eaker The fo.
66 Assembly 1) Assemble the speaker on the main fra me. Pull at the foot of the speaker strongl y. The wire of the speaker will be traversed from the middl e hole as follow picture. The wire will connec t power board and speaker. 2) Assemble the wire to the main board.
67 3) Assemble the main board and po w er board on the main frame. Connect main board and power board; conne ct speaker and power board. Lock the main board and powe r board on the mainframe. S tick the black rubbe rized fabric. 4) Assemble the AC-COVER.
68 5) Assemble the panel on the bezel. 6) Assemble the main frame and the key board. Connect key board and main board, pa nel and power board, panel and main board. Stick the black ru bberized fabric and aluminum foil. Connect panel and main board. Connect panel and p ower board.
69 7) Assemble the rear cover. Lock the mainframe and rear cover as follow picture. 8) Assemble the stand. Push the stand as follow picture..
70 9) Assemble the base..
71 Block Diagram Main Board D-Sub Connector (CN101) Panel Interface (CN452) Key Control Interface (CN401) Crystal 14.31818MHz (X401) Scalar IC TSUMO88QWDT3-LF-1 (U401) Flash ROM Pm25LD020C-SCE (U402) .
72 Power Board GL2450HM//GL2450HE 715G5000P0 1000003H EMI filter S t art Resistor (R908) PWM Control (IC901) T rans former AC input 5V Bridge Rectifier and Filter Feedback Circuit Rectifier diodes Pow.
73 G2450HM 715G5000P010010 03H EMI filter S t art Resistor (R908) PWM Control (IC901) T rans former AC input 5V Bridge Rectifier and Filter Feedback Circuit Rectifier diodes Power Switch (Q901) Photo .
74 Schematic Diagram Main Board 715G4997M0E00000 4L C720 10N 50 V VCC 1 . 8 5 +5V Q702 NC / 2 N 3904S-R TK/PS R704 10K 1/16W 5% VCC 1. 8 C705 0.1U F 16V +5V 3,4, 5,7 R717 NC / 100R U70 2 NC / G1117-33T43UF 1 2 3 ADJ( GND) VOUT ( T AB) VI N C70 1 0. 1U F 16V R702 4.
75 DDCA _S CL 5 D1 04 BAV99 3 1 2 R118 47R GI N 5 DDC_ WP 4,5 R110 47R U101 C AT 24C 02W I -GT3 1 2 3 4 5 6 7 8 A0 A1 A2 VSS SD A SC L WP VC C D1 02 BAV70 3 1 2 C1 08 N C / 22P 50V VCC 3.
76 HD2- 5 R504 NC U501 AZ1045-04SU .R 7G 1 2 3 4 5 6 I/O1 GND I/O2 I/ O3 VDD I/O4 DATA 2+ Q502 LMBT 3904LT1G HD MI 1_D0- HDM I_DET 5 HD MI 1_D2- DATA 1+ R509 1K 1/ 16W 5% DDC_WP 3,5 HD MI1_CEC 5 R520 4.7K R544 N C/ 0R 05 1/16W RX CN 5 DATA 2+ R532 1K 1/ 16W 5% R540 47R D509 BAV99 3 1 2 DVI_ SDA 5 RX 2N 5 DVI_ DET 5 ZD 509 RLZ 5.
77 RIN 3 CSZ C440 2. 2U10V R405 1K 1/16W 5% C419 0.1U F 16 V AVDD_AU VCC3 .3 WP R42 0 0. 05R AGND FB406 120OHM 1 2 VOLU ME 7 LED_G R428 3.9K1/ 16W SDI R425 0R05 1/ 10W R406 1K 1/16W 5% VDDC VCC1 .8 2 PA4 FB401 120OHM 1 2 C415 0.1U F 16 V C442 4.7U F 10 V SDA_PAN EL 6 ZD40 4 NC/RL Z5.
78 PA1 PB2 P B [0 ..9 ] P A [0 ..9 ] PA6 PB4 PA8 PB1 PA2 PB9 PB8 PA1 PA4 PA9 PA5 PA3 CN4 5 2 CO NN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 R 453 300 OH M PA0 P A [0 .
79 FB60 8 120OH M 1 2 R623 33K 1% AGND CN6 02 PHON EJAC K 1 2 3 5 4 C60 1 NC/0.47u F 16V HP_ OU TL1 R62 6 10K 1/16W 5% CN606 CONN 1 2 3 4 +5V AGND AGND SE-1 R619 0R05 1/16W R617 NC/22 K R618 N C/ 0R 05 1/ 16W +5V_AUDI O + C606 220UF 16V C61 7 0. 1UF 16V + C61 4 220uF 16V AGND C62 4 NC / 0.
80 Power Board GL2450HM//GL2450HE 715G5000P0100 0003H R90 9 1 00 OHM 1/ 4W R 905 470OH M1/10W Footprint: 80LL17T-2 E ZD 902 NC / MT ZJ T - 72 16B FB9 03 BEAD 1 2 R 919 150 OH M 1/10W F90 1 FUS E C 917 1000PF500V C 919 1500PF 2KV R91 6 10K1/ 10W S80GL22T3V3 P +16V GND R92 9 1 00 OHM 1/ 4W C 927 47NF /50V + C 922 470uF 25V C9 09 NC R92 4 0.
81 DIM Q806 AO4886 1 2 3 4 5 6 7 8 S2 G2 S1 G1 D1 D1 D2 D2 R8 14 30K 1% 1/ 10W R8 37 NC R8 10 10K1/ 10W R80 1 300K 1/ 8W 5% R 809 20 K 1/ 10W C N 801 N/ A 1 2 3 4 5 R8 31 1R 1% R83 3 NC C80 6 100pF 50V R81 5 30K 1% 1/ 10W R82 6 3.3 OH M 1/4W R80 7 100KOH M +-1% 1/8W OVP C8 13 100pF 50V R8 36 NC + C8 04 4.
82 G2450HM 715G5000P010010 03H C916 1000PF500V C912 100N 50V t NR 901 NT CR 1 2 ZD 901 MT ZJ20B ! CN 901 SOCKET 1 2 3 ! C902 1000pF +16V + C918 1000UF 25V ! R9 26 10 OHM 1/4W IC 901 LD7576AGR 1 2 3 4 .
83 R 811 82 KOH M +-1% 1/ 8W +16V R 817 2. 2 OHM 1/ 4W C8 2 3 4. 7uF 25V R 839 1M 1/ 10W 5% R8 45 7. 5K 1 / 10W 5% C8 19 47PF 5% SL 3KV ZD80 2 RL Z5.6 B 1 2 R 809 1M 1/10W 5% +5Vi LV3 D 803 BAV99 3 1 2 LV4 C 815 0.
84 Key Board 715G5048K01000004I Z D 008 NC/UDZSNP 5 .6B 1 2 ZD 006 NC/UDZS NP5 .6B 1 2 GN D ZD00 1 NC/UDZS NP5 .6B 1 2 0.673V POW ER MENU GN D CN001 pin1 SMD: down DIP: up GN D C N 001 CO NN 1 2 3 4 5 6 7 8 GN D SW006 SW 3 4 2 1 5 6 SW006 RIGHT (ENTER) L ED_ GRN# LED 001 LED 2 4 1 3 GN D ZD00 2 NC/UDZS NP5 .
85 T roubleshooting Frequently asked questions (F AQ) The image is blurred: Read the instructions on the link " Adjusting the Scr een Resolution " on the CD, and then select the correct resolution, refresh rate and make adjust ments based on these instructions.
86 Is the prompt on the display illuminated in orange? If the LED is illuminated in orange, the power management mode is active . Press any button on the computer keyboard or move the mouse. If that does not help, chec k the signal cabl e connectors. If any pin is bent or broken off, please contact your deal er to get necessary support.
87 No Power OK NG No power Check power cabl e is tightened? Check Power “On/Of f” is “On”? Re-plug the power cable Replace main board and check co nnections Check the LED indicates is OK? Chec.
88 No Video (Power LED Green) No Video (Power LED Green) Press the power button is O K? Check the L VDS/FFC cable or p anel The end NG OK OK NG Replace the main board Replace the power board Replace t.
89 DIM OK The end OK The end OK The end DIM (image overlap, focus or flicker) Reset in factory mode Set to the optimal frequency , select the recommended fre q uenc y Pull out signal cable and check .
90 Color is not optimal NG Color is not optimal Miss color Color shift Replace the signal cable Pull out the signal cabl e and check the screen color display is normal? The end Replace the signal cabl.
91 PCB LAYOUT Main Board 715G4997M0E00000 4L.
92.
93 Power Board GL2450HM//GL2450HE 715G5000P0 1000003H.
94.
95 G2450HM 715G5000P010010 03H.
96.
97.
98 Key Board 715G5048K01000004I.
99 Appendix 1 – Screw List / Torque Part No. Type Description Quantity Torque 0D1G1030 6120 D3*6 POWER BOARD & MAINFRAME 2 6 ± 1kgf.cm 0M1G1740 8120 M4*8 POWER BOARD & MAINFRAME 1 6 ± 1kgf.cm 0D1G1030 6120 D3*6 MAIN/POWER BOARD & MAINFRAME 4 6 ± 1kgf.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté BenQ GL2450HE c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du BenQ GL2450HE - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation BenQ GL2450HE, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le BenQ GL2450HE va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le BenQ GL2450HE, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du BenQ GL2450HE.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le BenQ GL2450HE. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei BenQ GL2450HE ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
