Acer CB342CUR Extension Guide

Also See for CB342CUR:

User manual (32 pages)

Lifecycle extension manual (25 pages)

Available languages

Table of Contents

Contents

1 Exploded view diagram with list of items
2 Mechanical Instruction
- 2.1 Disassembly Procedures
3 Firmware Upgrade Process
4 Check the FW version after upgrade
5 Q&A
6 Writing EDID Process
7 FRU (Field Replaceable Unit) List
8 Trouble shooting instructions
9 Important Safety Notice
10 Documents / Resources

Acer CB342CUR Extension Guide

Exploded view diagram with list of items

Item	TPV Part No.	Description	Acer Part No.
1	750GBG340U6B11N000	PANEL
2	0M1G3130-5-120	SCREW M3.0*5.0
3	F95G801841D404	CABLES LVDS
4	756GFHCB0BA0110000	MAIN BOARD
5	F95G801841D404	CABLE L/B
6	Q15G2622109	MAIN FRAME
7	705GFACS813	MIDDLE FRAME
8	N/A	LENS
9	LEPCFQL1WB	LED BOARD
10	Q23G3155786002	DECO LOGO
13	N/A	LIGHT BAR
14	USBIQAE	USB BOARD
15	Q15G2882101	USB BKT
16	F78G0090650YAA00NT	SPEAKER BOX
17	F95G8014S4Q081RPNT	CABLE SPEAKER
18	A33G1936AEM-1L0100	KEY
19	KEPCFQK9WB	KEY BOARD
20	F95G8014-6Q845RPNT	CABLE KEY
21	F95G8022-3Q719RPNT	CABLE LED
22	A33G2016AEM-2L0100	NAVI KEY
23	Q15G2228103	BKT_WALL_MOUNTING
24	A34G4161AEM-3L0130	REAR COVER
25	A34G4163AEM-1L0100	COVER_IO
26	F37G8089011	STAND
27	0M1G2940-10-125	SCREW

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 materials requiring selective treatment can be removed. Tool Description:

Screwdriver (Phillip-head, Hexagonal head)
Penknife

Disassembly Procedures

Put the monitor face down on a matched cushion,
1. Use the finger to release the screw to remove base.
2. Use the tool to take out hinge cover.
3. Release the screws to take out stand assy.
Remove the rear cover.

Release the screws.
Use a tool (like picture using) to open all latches. (Be careful the position of the key board.) Note: please always start from the opening hole on the bottom of cover. DO NOT open it too hard! It may cause cover damage.
Disconnect the cable to remove back cover totally.

Disconnect the cables, tear up all tapes, release the screws to remove main frame, USB bkt and speakers.
Release the screws to remove middle frame and take out LED board.
Release screws to separate the main board and USB board individually.
The Main board, USB board
NOTE: Circuit boards > 10 cm 2 has been highlighted with the yellow rectangle as above image shows. Please detach the Circuit boards and follow local regulations for disposal.
Disassemble the screws to separate the middle frame from panel.
NOTE: Circuit boards > 10 cm 2 has been highlighted with the yellow rectangle as above image shows. Please detach the Circuit boards and follow local regulations for disposal.
Release screws and take out key board

Firmware Upgrade Process

Preparation
Open the folder and double click the ISP tool to run it.
Install the USB port driver by clicking "Communication Option".
1. Click "Install" to process it.
2. Disconnect USB cable from PC and reconnect it again, then click "Detect", it should be showed "0" which means the USB port driver is installed successfully.
3. Enter into the computer manager menu under PC to check if below red portion is showed to ensure this ISP driver is installed successfully
Firmware upgrade
1. Choose the USB Access method as Realtek USB.
2. Upgrade the firmware as sequence.
  1. Tick, √
  2. loading required software
  3. ISP Option
After about 1 minute, there will pop up message once upgrade successful. (Here takes R272 for example)

Check the FW version after upgrade

The way to open factory menu.
1. Connect HDMI source to monitor and turn it on. Please see the user controls as below.
2. The way to factory menu: Power monitor on, press key button 332211, the screen will pop up below.
Do factory reset in user menu.
1. Restart the monitor after open factory menu. And then open the user menu. Press key button 4411 to reset.
2. Factory reset will turn off "Burn in" mode which screen color switches among red, green, blue and black.

Q&A

Which conditions shall update FW?

Totally, X34, XB240HA, XB270HA and XB281HK both are having 6 parts FW combination to become G-SYNC model.

Bit-stream
The modules ship pre-programmed with Rel7, which is the exact same RTL and DP CPU code as is in Rel8. The RTL and DP CPU code hasn't changed since Rel7. So this part we don't need to flash it unless NV updates RTL or DP CPU code.
Module micro-controller
The modules ship pre-programmed with 1.12, which is the latest version for G-SYNC models. This part we don't need to flash it unless NV updates it for resolve specific issues.
Bitmaps(.bin)
The OSD combination has through bitmaps to scrape together become Acer style OSD. Therefore, if have any change of OSD, for example, update multi languages or change any bitmaps...etc, then need to update this part.
OSD navigate FW(.elf)
The OSD navigation is through this part to control it. Therefore, any navigation issues have been found by end user or NV updates OSD_lib for resolve specific issues...etc, and then need to update this part.
Panel profile
The panel profile includes OD and Gamma table. Both tables had been fine turned by NVIDIA. It also got the certification from NVIDIA. Therefore we don't need to update it after MP unless NVIDIA updates it for resolve specific issues.
Base board micro-controller
This part is controlled Keypad, LED light and USB hub power on/off. It don't need to update it unless have any change for Keypad, LED light and USB power on/off behavior..etc.
Basically, c, d and e will be update together base on experience. It can base to flash it together.

Have any update sequence for 6 parts FW?

The first priority is Bit-Stream. After that, no any update sequence for other 5 parts. Besides, if have any parts be updated and shall doing AC power cycle to reset and restart module.

Why has not Product SN of OSD?

G-SYNC module doesn't provide communicate bridge between MNT and PC. Therefore, TPV can't write PN, vendor and version code into EEPROM. It only SN can through NVIDIA's tool to write data to EEPROM.

How to check G-SYNC function is active?

It can link to http://www.nvidia.com/coolstuff/demos#!/g-sync to download demo program.

How to check ULMB function is active?

A good synthetic demo is the Blur Busters UFO test, found at www.testufo.com. Enable and disable ULMB while staring at the moving UFO image.

Writing EDID Process

Test Environment Preparation
Install LPT driver

Double click the icon to install the driver. Restart PC after installation.

Prepare the EDID written
Copy Acer CB342CUR to DDC folder and put DDC and ISP tool together.
Run the ISP tool
1. Double-click the icon to open the tool.
2. Select the EDID folder (here takes CB382CUR for example).
3. Load EDID successful. Tick the "Only connect HDMI, input the 22 SN, and then click "Write EDID". Don't close the factory menu while writing EDID.
4. When the green "PASS" appears, the process is finished.
5. Check the S/N in monitor user menu. Press "MENU" and select "Information"—"SN", you can check the SN.
6. Troubleshooting
  1. Can't write error.
  2. Try below few ways to cure can't write errors!
    1. AC on the monitor and turn on it.(Restart the monitor)
    2. Take apart the monitor and connect the 7 pin of EEPROM to GND to diable write protection then write EDID one by one.
    3. Set the Burn in on last to try again.

FRU (Field Replaceable Unit) List

This chapter gives you the FRU (Field Replaceable Unit) listing in global configurations of Acer B246HYL Refer to this chapter whenever ordering for parts to repair or for RMA (Return Merchandise Authorization).
Please note that WHEN ORDERING FRU PARTS, you should c heck the most up-to-date information available on your regional web or channel. For whatever reasons 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 the FRU list of this printed Service Guide. You MUST use the local FRU list provided by your regional Acer 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 Acer office on how to return it.

Picture	Description	TPV Part No.	Acer Part No.
	MAIN BOARD FOR PANEL LM340UW6-SSA3 KR LGD W/ HDMI//DP/Type-c/SPKCBPC1TPC0F0(100GBRGT CA0FT1)	756GFHCB0BA0110000
	USB BOARD(Type-c)	USBIQAE
	KEY BOARD ASSEMBLY	KEPCFQK9WB
	LED BOARD(power LED)	LEPCFQL1WB
	Panel LM340UW6-SSB1 KR LGD	750GBG340U6B11N000
	HDMI 2.0 CABLE 1800mm BLACK W/O Core TIEN HSIANG	389G1848GAAFHH2000
	HDMI 2.0 CABLE 1800mm HOTRON	389G1848LAAFHH2000
	HDMI 2.0 CABLE 1800mm BLACK W/O Core COMLINK	389G1848CAAFHH2000
	USB Type-C Cable 1800mm Black W/O Core COMLINK	389G1758CAAFCC015E
	USB Type-C Cable 1800mm HOTRON	389G1758LAAFCC015E
	USB 3.0 CABLE 1800mm BLACK W/O Core HONGLIN	389G0175M02ALH
	USB 3.0 CABLE 1800mm BLACK W/O Core TIEN HSIANG	389G0175M02ALG
	USB 3.0 CABLE 1800mm BLACK W/O Core Ji-Haw	F89G0175M02ALA
	DP CABLE 1800mm BLACK	F89G1878LAAF0100AL
	DP CABLE 1800mm	F89G1878AAAF0100AL
	DP CABLE 1800mm	F89G1878HAAF0100AL
	POWER CORD 1800MM (EUROPE)	089G604A18N-HL
	Adapter 3M 19.5v/9.23A/180w	F80GLA19568DE100NT
	SPK X20029PF-001 8 OHM 9W 232x37.2mm 50mm BOX SUNLINK	F78G0090650YAA00NT
	WIRE HARNESS 6P-6P P1.25-P2.0 L=410MM 30V(KEY BOARD TO MB)	F95G8014-6Q845RPNT
	WIRE HARNESS 6P-6P P1.25-P2.0 L=410MM 30V(KEY BOARD TO MB)	F95G8014-6D845RPNT
	WIRE HARNESS 12P-12P P2.0-P2.0 L=520MM 300V(MB TO PANEL)	F95G801412Q843RPNT
	WIRE HARNESS 12P-12P P2.0-P2.0 L=520MM 300V(MB TO PANEL)	F95G801412W843RPNT
	WIRE HARNESS 4P-2P+2P P2.0 L=(350+300)MM 30VI(MB TO SPK)	F95G8014S4Q081RPNT
	WIRE HARNESS 4P-2P 2P P2.0 L=(350 300)MM 30V(MB TO SPK)	F95G8014S4W081RPNT
	WIRE HARNESS 3P-3P P1.25-P1.25 L=100MM 30V(KEY BOARD TO LED BOARD)	F95G8022-3Q719RPNT
	WIRE HARNESS 3P-3P P1.25-P1.25 L=100MM 30V(KEY BOARD TO LED BOARD)	F95G8022-3W719RPNT
	CABLE 41P-32P+41P-34P 240MM(MB TO PANEL -1- 2)	F95G801841L404
	LVDS CABLE 41P-32P+41P- 34P240MMXINYA(MB TO PANEL -1- 2)	F95G801841D404
	CABLE 50PIN 0.5MM 120MM JUNFENG(MB TO USB BOARD)-Type-c	F95G176M-51008
	CABLE 50PIN 0.5MM 120MM QUNLI(MB TO USB BOARD)-Type-c	F95G176Q-51008
	IO-cover	A34G4163AEM-1L0100
	REAR COVER ASSY	A34G4029AEM-8L0130
	middle frame ASSY	705GFACS813
	Stand Assy	F37G8089021
	Base Assy	F37G8089B11
	USB-BKT	Q15G2623101
	MAINFRAME (H+M+DP+USB)-TYPE-C	Q15G2622109
	vesa BKT	Q15G2228103
	KEY	A33G1936AEM-1L0100
	Navi-Key for CB382CUR	A33G1904AEM-2L0100
	Screw D3x6	0D1G1030--6120

Trouble shooting instructions

HDMI/DP/DP ALT Mode (Optional)

Note: Acer monitor is purposed for video and visual display of information obtained from electronic devices.

Important Safety Notice

Product Announcement:
This product is certificated to meet RoHS Directive and Lead-Free produced definition. Using approved critical components only is recommended when the situation to replace defective parts. Vender assumes no liability express or implied, arising out of any unauthorized modification of design or replacing non-RoHS parts. Service providers assume all liability.

Qualified Reparability:
Proper service and repair is important to the safe, reliable operation of all series products. The service providers recommended by vender should being aware of notices listed in this service manual in order to minimize the risk of personal injury when perform service procedures. Furthermore, the possible existed improper repairing 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:
shock hazard 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.
warning To prevent the product away from water or exposed in extremely high humility environment.
warning To ensure the continued reliability of this product, use only original manufacturer's specified parts. ! To ensure following safety repairing behavior, put the replaced part on the components side of PWBA, not solder side.
warning To ensure using a proper screwdriver, follow the torque and force listed in assembly and is assembly procedures to screw and unscrew screws.
warning Using Lead-Free solder to well mounted the parts.
warning The fusion point of Lead-Free solder requested in the degree of 220°C.