Acer B247W Support and Manuals
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Lifecycle Extension Guide - Page 2
... to be used when serving electronic equipment containing
high voltage Exploded Diagram 4 2. Contents
Table of the necessary safety precautions to service this chassis must familiarize with the chassis and be aware of Contents
Important Safety Notice 3 1. Wiring connectivity diagram 5 3. Disassembly and Assembly SOP 7 5. Troubleshooting 13 6. Mechanical Instruction 6 4.
Lifecycle Extension Guide - Page 3
... cord, and turn off the master power switch each time before performing the service procedures. ACER B247W
3
Important Safety Notice
Product Announcement: This product is recommended when the situation to replace defective parts. Using approved critical components only is certificated to well mounted the parts.
! Vender assumes no liability express or implied, arising out of any...
Lifecycle Extension Guide - Page 4
1.1 Product Exploded Diagram
1. Exploded Diagram
ACER B247W
4
ITEM 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
PARTS DESCRIPTION LED LCD Panel MAIN BOARD POWER BOARD FUNCTION KEY BOARD USB BOARD USB SIDE BOARD LED BOARD MAIN SHIELDING AH+DP+S+L+U BEZEL FOR B247W LOGO MIDDLE FRAME B247W BACK COVER AH+DP+S+L+U STAND NECK STAND BASE MAIN BOARD MYLAR POWER BOARD MYLAR ON SHIELDING
Lifecycle Extension Guide - Page 5
Please base on different SKU refer to the ACTUAL PCBA connector position. NOTE: INF BD= Interface Board, PWR BD=Power Board, CTRL BD= Control Board 1. Wiring connectivity diagram
There are two types of wiring diagrams for model B247W. SKU with USB.
2. The wiring connectivity position will be different according to below diagram. SKU without USB. ACER B247W
5
2.
Lifecycle Extension Guide - Page 6
working table - cleaning cloth - Knife - glove - Screw-driver: Philips-head screwdriver, Hex-head screwdriver - ACER B247W
6
3. Mechanical Instruction
Tools Required List the type and size of the tools that would typically can be used to disassemble the product to a point where components and ...
Lifecycle Extension Guide - Page 7
... picture 1. Disassemble the CTRL BD from the PCBA. Disassemble the FFC CTRL from the PCBA. ACER B247W
7
4. Please pay attention
when disassembling/assembling Power BD. Unlock RC screws. Disassemble FFC
S2
...CTRL on the RC as bellow:
1) working table
2) Screw-driver
3) knife
4) glove
5) cleaning cloth
6) ESD protection
After unplugging the power cord, the power board ...
Lifecycle Extension Guide - Page 8
... and
disassemble the USB SIDE BD. Extract the big connector of the lamp wire
form the P/BD as picture 1. Unlock the screw from the I/F BD.
ACER B247W
8
S3
Disassemble the speaker from the MF
Tear off tapes on the right hole of the SHD as picture 1.
Tear off the BOPP tape on...
Lifecycle Extension Guide - Page 9
... 1
Unlock 7 screws from the PCBA as above image shows. NOTE: Circuit boards >10 cm² has been highlighted with the yellow rectangle as the picture 1. ACER B247W
9
S6
Disassemble the Trim
PICTURE 1
Unlock two screws from the ASSY TRIM as the
picture 3. Disassemble the MF from the USB BD. Disassemble the USB...
Lifecycle Extension Guide - Page 10
... 5
P/BD I /F BD.
Lock 7 screws as bellow：
1) working table
2) Screw-driver
3) Knife
4) glove
5) cleaning cloth
6) ESD protection
After unplugging the power cord, the power board still have power energe.
Put the SHD on the P/BD to the Power BD as picture 4. ACER B247W
10
4.2 Assembly Procedures
Preparation before assemble:
1.Clean the room for...
Lifecycle Extension Guide - Page 11
... cushion. Assemble the ASSY TRIM on the MF as the picture 3. Assemble the MF onto the panel.
Insert
the FFC LED into the ASSY TRIM. ACER B247W
11
S2 Assemble the MF and panel
PICTURE 1
Take the Panel on the
FFC LED. Lock 9 screws to
fasten the lamp wire as the picture...
Lifecycle Extension Guide - Page 12
... panel.) Tear four BOPP tapes and stick them on the RC. PICTURE 1
Stick a gasket on the point of inflexion of the SHD as the picture. ACER B247W
12
S5 Assemble the Ctrl
PCBA on the MF. Stick 1 piece adhesive tape on the back of the panel to the RC. Assemble the RC...
Lifecycle Extension Guide - Page 13
ACER B247W
13
TROUBLESHOOTING
5.
Abnormal Picture
Using OSD, adjust RESOLUTION, CLOCK, CLOCK-PHASE, H-POSITION and V-POSITION with the host PC is connected.
Check if the volume setup of the host PC is in compliance which may be causing the input signal frequency mismatch.
Troubleshooting
Before sending your LCD monitor for a few seconds...
Lifecycle Extension Guide - Page 14
... (Only Audio-Input model) (Optional)
No sound, or sound level is too low
Check the audio cable with the host PC is connected.
Check if the volume setup of computer system is in minimum position and try to their default settings. ACER B247W
14
(HDMI/DP Mode)
Problems
Current Status
LED ON...
Lifecycle Extension Guide - Page 15
... to return it properly, or follow the rules set by your office may have a DIFFERENT part number code from those given in the FRU list of this chapter whenever ordering for parts to this printed Service Guide. Category LCD
BOARD
IF BD
P/ BD
CTRL BD USB BD
ACER DESCRIPTION
Description
PART NO.
LED LCD Panel AUO 24" WUXGA...
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