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Important Safety Notice 

Proper service and repair is important to the safe, reliable operation of all ACER Company Equipment. The service 

procedures recommended by ACER and described in this service manual are effective methods of performing 

service operations. Some of these service operations require the use of tools specially designed for the purpose. 

The special tools should be used when and as recommended. 

 

It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read 
in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service 
methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE 
NOT EXHAUSTIVE. ACER could not possibly know, evaluate and advise the service trade of all conceivable ways 
in which service might be done or of the possible hazardous consequences of each way. Consequently, ACER 
has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool 
which is not recommended by ACER must first satisfy himself thoroughly that neither his safety nor the safe 
operation of the equipment will be jeopardized by the service method selected. 
Hereafter throughout this manual, ACER Company will be referred to as ACER. 

 

WARNING 
Use of substitute replacement parts, which do not have the same, specified safety characteristics may create 
shock, fire, or other hazards. 

 

Under no circumstances should the original design be modified or altered without written permission from ACER. 
ACER assumes no liability, express or implied, arising out of any unauthorized modification of design. 

 

Servicer assumes all liability. 

 

FOR PRODUCTS CONTAINING LASER: 
DANGER-Invisible laser radiation when open. AVOID DIRECT EXPOSURE TO BEAM. 
CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may 
result in hazardous radiation exposure. 
CAUTION -The use of optical instruments with this product will increase eye hazard. 

 

TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S 
REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION 
OF THIS SERVICE MANUAL. 

 

Take care during handling the LCD module with backlight unit 
-Must mount the module using mounting holes arranged in four corners. 
-Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen. 
-Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to 
the panel. 
-Protect the module from the ESD as it may damage the electronic circuit (C-MOS). 
-Make certain that treatment person’s body is grounded through wristband. 
-Do not leave the module in high temperature and in areas of high humidity for a long time. 
-Avoid contact with water as it may a short circuit within the module. 
-If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth 
may damage the panel.)1.

Содержание B248Y

Страница 1: ...1 23 8 LCD Monitor ACER B248Y Service Service Service Acer Monitor B248Y LIFECYCLE EXTENSION GUIDE...

Страница 2: ...nt Safety Notice 3 1 Exploded view diagram with list of items 4 2 Mechanical Instruction 5 3 Firmware Upgrade Process 16 4 Writing EDID Process 22 5 FRU Field Replaceable Unit List 28 6 Trouble shooti...

Страница 3: ...may create shock fire or other hazards Under no circumstances should the original design be modified or altered without written permission from ACER ACER assumes no liability express or implied arisin...

Страница 4: ...23 22 21 20 S1 28 Item Description TPV Part No ACER Part No 5 LED BOARD LEPCLQA3 N A 6 LCD M238HCA L3E C1 NB INX 750GBN238H3E12N000 N A 7 OPTION BOARD PTPCPQB8 N A 10 KEY BOARD KEPCPQB8 N A 14 ADAPTE...

Страница 5: ...t the type and size of the tools that would typically can be used to disassemble the product to a point where components and materials requiring selective treatment can be removed Tool Description Scr...

Страница 6: ...assembly Procedures S1 Push the button to remove the stand base assy then unscrew the screws S2 Remove the REAR COVER Use a tool like picture using to open all latches Be careful the position of the k...

Страница 7: ...7 S3 Disconnect the cables to remove the rear cover S4 Remove the key board S5 Tear up all the tapes disconnect the cables and remove the speakers...

Страница 8: ...8 S6 Remove the screws to separate the panel and the Middle Frame Optional Board IR Board Webcam and the DECO BEZEL...

Страница 9: ...9...

Страница 10: ...10 S7 Remove the Mylar sheet and the all of the screws to remove the main board Power board from mainframe S8 Remove the cables...

Страница 11: ...S1 Prepare a main board a power board and the cables Connect the cables as below picture S2 Use a screwdriver to tighten the screws till the boards with shield are firmly attached Then paste the Mylar...

Страница 12: ...12 S3 Assemble the MIDDLE FRAME DECO bezel LED board IR board Webcam OPTION BOARD and the panel Use a screwdriver to tighten the screws...

Страница 13: ...13 S4 Put the main frain on panel connect cables Assemble the speakers Pasting all tapes S5 Prepare a rear cover Assemble the key board...

Страница 14: ...14...

Страница 15: ...15 S6 Connect the pins and tighten the screws S7 Assembly the stand base ass y...

Страница 16: ...re Wizard to help you install the USB driver if you use this ISP board first time it can auto install success by itself Remark The USB driver files path D FTC100103 Mstar FTCUSB INF After installation...

Страница 17: ...Upgrade use the same ISP tool as the EDID writing you must close the EDID writing tool before running the F W Upgrade tool 3 1 double clicks the icon to run it Note Must to install driver firstly 3 2...

Страница 18: ...P and ISP Option to set as below In order to prevent HDCP KEY data loss please must load the file name contain the Reduce of the firmware 3 4 Close the ISP Option window and click the BigBin to load t...

Страница 19: ...19 3 5 Click to start programming 3 6 After about 20 minutes there will pop up message as below figure which promotes the upgrade successful...

Страница 20: ...Connect signal source to monitor and turn it on 2 DC off the MNT then pressing the hot key button and DC on when the screen lights release the key and press the left botton again to open the menu with...

Страница 21: ...u 1 Restart the monitor after open factory menu And then open the user menu 2 Factory reset will turn off Burn in mode which screen color switches among red green blue and black 4 3 How to close the b...

Страница 22: ...files to one folder named as Acer B248Y which must contains config ini file 3 3 Copy Acer B248Y to DDC folder and put DDC and ISP tool together 4 Run the ISP tool Note If the F W Upgrade use the same...

Страница 23: ...23...

Страница 24: ...24 4 2 Select the EDID folder 4 3 Load EDID successful...

Страница 25: ...25 4 4 Tick the Only connect HDMI and Write SN 4 5 Set the OtherSetting as below...

Страница 26: ...26 4 6 Type in the date and the 22 digit S N and Debug Information 4 7 Click write EDID to start writing When The green PASS appear the process is finished...

Страница 27: ...pears all 00 when read the EDID data you need reconnect the ISP tool or install the the driver of the ISP tool again 2 If it appears all FF it shows that the EDID data of the Main board is empty you m...

Страница 28: ...easons a part number change is made it will not be noted on the printed Service Guide For ACER AUTHORIZED SERVICE PROVIDERS your ACER office may have a DIFFERENT part number code from those given in t...

Страница 29: ...29 6 Trouble shooting instructions...

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