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ACER B277U

(HDMI/DP Mode)

Problems

Current Status

Remedy

No Picture

LED ON



Using OSD, adjust brightness and contrast to
maximum or reset to their default settings.

LED OFF



Check the power switch.



Check if AC power cord is properly connected
to the monitor.

LED displays
amber color



Check if video signal cable is properly
connected at the back of monitor.



Check if the power of computer system is ON.

Abnormal
Sound
(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 the host PC is in
minimum position and try to raise the volume
level.

Содержание B227U

Страница 1: ...Acer Monitor B227U LIFECYCLE EXTENSION GUIDE ...

Страница 2: ... 3 Mechanical Instruction 6 4 Disassembly and Assembly SOP 7 5 Troubleshooting 13 6 FRU List 15 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 ...

Страница 3: ...airing 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 ...

Страница 4: ... BD 18 SCRW 3 FFC LED 19 SCRW 4 LCDM27W M270DAN02 5 QA AUO Z 20 MYLAR 5 MID FRAME 21 MYLAR 6 SCRW 22 PCB USB BD 7 SPK 23 FFC USB 8 SCRW 24 PCB USB SIDE BD 9 WIRE 6 6P 1061 30 175MM 25 SCRW 10 PCB SPS BD 26 MYLAR 11 PCB IF BD 27 ASSY CLMN 12 SCRW 28 ASSY BASE 13 FFC LVDS 30P P1 400MM 14 FFC LVDS 40P P 8 420MM 15 ASSY SHD 16 PCB CTRL BD ...

Страница 5: ...iagrams for model B277U The wiring connectivity position will be different according to the ACTUAL PCBA connector position Please base on different SKU refer to below diagram NOTE INF BD Interface Board PWR BD Power Board CTRL BD Control Board 1 SKU with USB 2 SKU without USB ...

Страница 6: ...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 working table Screw driver Philips head screwdriver Hex head screwdriver Knife glove cleaning cloth ESD protection ...

Страница 7: ...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 Please pay attention when disassembling assembling Power BD S1 Disassemble the RC stand and base Disassemble base and column from the RC Unlock RC screws Disassemble RC from monitor S2 Disassemble FFC Ctrl from the PCBA Tear off the adhesiv...

Страница 8: ...ck the screw from the USB SIDE BD and disassemble the USB SIDE BD Disassemble the USB FFC from the USB SIDE BD as picture 2 Disassemble the gasket from the back of the panel as picture 3 PICTURE 1 PICTURE 2 PICTURE 3 S5 Disassemble the lamp wire Extract the FFC LED from the I F BD Tear off the FFC LED from the SHD as picture 1 Tear off the Mylar on the left hole of the SHD as picture 2 Tear off th...

Страница 9: ...le the MF from the panel Extract the lamp wire from the panel as the picture 3 PICTURE 1 PICTURE 2 PICTURE 3 S8 Disassemble the USD BD I F BD and P BD from SHD Unlock 7 screws from the PCBA as the picture Disassemble the USB BD from the SHD and extract the wire from the USB BD Disassemble the I F BD from the SHD and extract the P BD wire Extract the FFC LVDS from the I F BD Disassemble the P BD fr...

Страница 10: ...B board Put the SHD on the worktable Insert USB I F BD wire to the IF BD Locate the P BD into the SHD Insert FFC LVDS to the I F BD Insert the wire on the P BD to the I F BD Locate the I F BD into the SHD Locate the USB BD into the SHD Lock 7 screws as the picture sequence S2 Assemble the MF and panel Take the Panel on the sponge cushion Insert the little connector of the lamp wire to panel as the...

Страница 11: ...PP tape to fasten the lamp wire as the picture 1 Affix a Mylar on the left hole of the SHD as the picture 2 Tear off the four gums on the FFC LED Stick the FFC LED on regular mark wire on the SHD as the picture 3 Insert the FFC LED into the I F BD S5 Assemble the Ctrl PCBA on RC Assemble FFC Ctrl to the Ctrl PCBA as picture 1 Assemble Control BD to the RC Tear off the gums on the FFC Ctrl Stick th...

Страница 12: ...cture 4 S7 Assemble the speaker on the MF Insert the speaker connect to the I F BD as the picture Arrange the wire of the speaker Attention Keep the speaker wire straight and the middle of the speaker wire is not allowed to be placed on the step of the panel Tear four BOPP tapes and stick them on the back of the panel to fasten the speaker wire as the picture S8 Assemble the RC stand and base Inse...

Страница 13: ... monitor is in compliance which may be causing the input signal frequency mismatch Display is missing center shift or too small or too large in display size Using OSD adjust RESOLUTION CLOCK CLOCK PHASE H POSITION and V POSITION with non standard signals Using OSD in case of missing full screen image please select other resolution or other vertical refresh timing Using OSD in case of missing full ...

Страница 14: ...ord is properly connected to the monitor LED displays amber color Check if video signal cable is properly connected at the back of monitor Check if the power of computer system is ON Abnormal Sound 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 the host PC is in minimum position and try to raise th...

Страница 15: ...your regional office to order FRU parts for repair and service of customer machines NOTE To scrap or to return the defective parts you should follow the local government ordinance or regulations on how to dispose it properly or follow the rules set by your regional office on how to return it Category ACER DESCRIPTION Description PART NO LCD LED LCD Panel AUO 27 H QHD None Glare M270DAN02 5 QA Z19 ...

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