Repairing Fluke Linkrunner LRAT2000 - sourcing a 2.8” TFT LCD panel - Page 1
Forum section: electronics / repair

author: WEL0058
author_rank: Newbie
timestamp: January 29, 2025, 06:59:57 am
content: I need help,I have two Fluke Linkrunner LRAT2000 network tester which do not work.#1 One in decent shape has no back light on its 2.8” TFT color 240x320 LCD display panel. Can see dim display shining flashlight on the panel.#2 The over Linkrunner does not power up. Corrosion on the main board.Remove the panel #2 and install it the no backlight Linkrunner #1. Powered up there is a display but display is missing some rows.Though it would be easy to sourcing the original 2.8” TFT LCD panels. They both labeled with part number “ET028003DMU”Running out options sourcing replacement panel…If any one can tell other products which used the same display panels, I can source used on eBay.Or if there is a direct replacement?The manufacturer is Emerging Display Technology known as EDTEDT was founded in Kaohsiung Taiwan in September, 1994. Since then, we have established a comprehensive global network to serve and support our customers worldwide.================================================Following is my notes so far…================================================Display: ETD ET028003DMU 2.8 320x240 TFT LCD w/ WLEDPanel Model: ET028003DMUPanel Brand: EDTDescrition: a-Si TFT-LCD ,2.8 inch, 240×320Panel Type: a-Si TFT-LCDDisplay Mode: TN, Normally White, TransmissiveActive Area: 43.2×57.6 mmOutline: 50×69.2×3.1 mmSurface:Contrast Ratio: 500:1 (Typ.)Display Colors: 262K (6-bit) , CIE1931 62%Response Time: 10/20 (Typ.)(Tr/Td)Viewing Angle: 70/75/75/55 (Typ.)(CR≥10) (L/R/U/D)Frequency: 60HzLamp Type: 1S4P WLED Without DriverSignal Interface: CPU/RGB/SPI , 50 pinsInput Voltage: 2.8/2.8V (IOVCC/VCI)LCDs-Screen.com is a specialty stocking distributor of EDT ET028003DMU.EDT ET028003DMU are new & original stock available at LCDs-Screen.com, same day shipping with free shiping cost.For the EDT ET028003DMU pdf datasheet or detailed specifications of the EDT ET028003DMU or other EDT LCDs, please email us, we'll be happy to provide one.Request a quote from EDT ET028003DMU distributor at LCDs-Screen.com. Email us: info@LCDs-Screen.co------------------------------Possible Replacement for EDT ET028003DMUEDT ET028013DMU, ET0280C0ADMUShenzhen Huataijia Technology Cohttp://www.htaccessories.com/------------------------------Hitachi TX07D04VM0APBA1 320x240 2.8" TFT-LCDPanel Brand DSPanel Model TX07D04VM0APBA1Panel Type TFT-LCDPanel SizeResolutionDisplay ModeSurfaceBrightnessContrast RatioDisplay ColorsResponse timeViewing AngleFrequencyLamp TypeSignal InterfaceInput VoltageRoHSOther NameTX07D04VM0APBALTXO7DO4VMOAPBA1HitachiTX0705APAA0, TX0705APAA3, TX0705APAA5, TX0705APAB8:Dopod P800, Dopod P800w, Dopod M700, HTC Artemis, HTC P3300, HTC P3600,O2 Xda orbit, Orange SPV M650, Qtek G200, T-Mobile MDA compact III,ETEN M700, ETEN X500, Verizon ppc6800, HTC 6800, XV6800CoolPAD 8360TX0706APAA0:HTC P4350, HTC Herald, HTC Trinity, T-mobile wing, Dopod C858TX0716AAA03:TX0716AAA06O2 XDA orbit II/2, HTC Touch cruise/ POLARIS/P3650, Dopod P860TX0720AAA01, TX0720AAA02, TX0720AAA03UTStarcom MP6900 MP6900SP, Sprint PPC6900 xv6900 6900HTC P3050. etc, used for CDMATX07D08VM1CABHP ipaq 6815 RW6815TX09D83VM3CA Rev. A, Rev. B, Rev. C, Rev. D, Rev. E:Mio P350, Mio P360, mio P550, mi P560, mio P560t. etc.HP iPAQ rx4240/ rx4540 LCD ScreenTX07D04VM0APA, TX07D04VM0APBA1, TX0704APAA2TX09D23VM1CAA, TX09D86VM3CEA, TX07D06VM0APA, TX05D05VM0APA,TX09D50VM1CCA, TX09D05VM0APA, TX09D06VM0APA, TX06D10VM0AAAAs leading wholesaler & retailer, we specialize in PDA LCD screen, touch screen, screen protector(HPipaq, Mio, Palm, Asus, Acer, HTC, DELL, Toshiba, Sony, SonyEricsson, Qtek, O2 XDA, T-Mobile)network device accessories.=============================================Your order has been received!From: ENLCD <info@enlcd.com>Sent: Mon, Nov 11, 2024 at 22:42To: Robert g[Order #E101801] (November 12, 2024)Product: ET028003DMU EDT LCD panel replacement for Mobile PhoneLCDCondition/Options: Refurbished (fairly new )Qty: 1 Price: USD $262.00Subtotal: USD $262.00 Discount: -USD $26.20Shipping: USD $22.00 via Standard PostShipping (7-14 days)(VAT free)(import tax free)Payment method: PayPalTotal: USD $257.80----------------------------Subj: You authorized a payment to EMPOWER TECHFrom: service@paypal.com <service@paypal.com>Sent: Mon, Nov 11, 2024 at 22:43To: Robert GMerchant: EMPOWER TECHContact: caroline@enlcd.com +86 181 3885 5217Transaction date: Nov 11, 2024Order ID: enlcd-E101801Ship to:Robert GUnited States-----------------------------Subject: []: New order #E101801From: ENLCDDate: 2024-11-12 11:42To: blessedsan3@qq.comYou’ve received the following order from Robert G[Order #E101801] (November 12, 2024)Product Quantity PriceProduct: ET028003DMU EDT LCD panel replacement for Mobile PhoneET028003DMU EDT LCD panel replacement for Mobile Phone LCDCondition/Options: Refurbished (fairly new )Qty: 1 Price: USD $262.00-----------------------------Re: []: New order #E101801From: caroline@enlcd.com <caroline@enlcd.com>Sent: Wed, Nov 13, 2024 at 19:45To: Robert GHello,Sorry to inform you that this LCD panel you ordered is sold out.We'll cancel this order for you.Carolinewww.enlcd.com- Professional LCD Panel Supplier==============================================Quote for ET028003DMU 2.8" a-Si TFT-LCD,Panel for EDTFrom:Amy <service@elecok.com>Sent:Tue, Nov 12, 2024 at 02:40To:RobertHi dear, Thanks for your letter.Sorry,ET028003DMU 2.8" a-Si TFT-LCD,Panel for EDT just sold out.If you interest in any other product, please feel free to contact me.Any questions please feel free to contact me.Thanks.Best RegardsAmyTel:+86 18565716892www.elecok.com===========================================Hi Robert,Thanks for responding. I’m glad you were able to find what you were looking for.Have a great day,Dana PowersPHOENIX DISPLAYINTERNATIONAL, INC.Dana.Powers@phoenixdisplay.com(408) 375-5113- CellSent: Tuesday, November 12, 2024 9:49 AMTo: dana.powers@phoenixdisplay.comCc: Joe Sidoryk <joe.sidoryk@phoenixdisplay.com>; Keith Mitnik <keith.mitnik@phoenixdisplay.com>; Tee Von Ahn <tee.vonahn@phoenixdisplay.com>Subject: RE: PDI InquirySorry Only looking for qty of two for Fluke meter. Did not realize you were a manufacture. Sure I am not first one to make this mistake.Found a Chinese source ENLCD which had in stock.Thank you for your response.-----Original Message-----From: dana.powers@phoenixdisplay.comSent: Tuesday, November 12, 2024 10:26To: Robert gCc: "Joe Sidoryk" <Joe.sidoryk@phoenixdisplay.com>, "Keith Mitnik" <Keith.Mitnik@phoenixdisplay.com>, "Tee Von Ahn" <Tee.Vonahn@phoenixdisplay.com>Subject: PDI Inquiry - Virginia BroadbandHello Robert,Thank you for the LCD inquiry as well as the detailed information you provided regarding the display needs for your program. Can you please provide estimated annual quantities? These numbers are important because the majority of our products are custom or semi-custom in nature and built to order. As a result, we look for programs that start in the thousand(s) of units annually and go up from there. Actual quantities depend on the complexity of the display.Please advise.Thanks,Dana PowersPHOENIX DISPLAYINTERNATIONAL, INC.Dana.Powers@phoenixdisplay.com

author: ElectricSlide
author_rank: Newbie
timestamp: February 11, 2025, 12:24:27 am
content: If you can find the Wifi version of the LRAT they use the same displays, and you can get them cheap sometimes around 116 USD on Ebay.... Just swap out the Panels, you may also be able to swap out other components if they are the same values especially if they were affected by the corrosion

author: daisizhou
author_rank: Super Contributor
timestamp: February 11, 2025, 03:11:53 am
content: RMB Quote

author: WEL0058
author_rank: Newbie
timestamp: March 03, 2025, 04:41:34 am
content: Quote from: ElectricSlide on February 11, 2025, 12:24:27 amThanks Slide for the suggestion. I was think about the Wi-Fi version. Did not want to take a gamble.I have confirm the main board in both the LRAT are the same for the 1000 and 2000 version. The 1000 also has the SPF connector soldered on the main board - it is just hidden with only the RJ45 opening. Seems all the same chips and POE resistor bridge are solder in. Only difference should be what code is flashed in flash ram.Bob G.Have open both the NetAlly LRAT 1000/2000 and the internals are using same Fluke labeled boards dated 2010.

author: WEL0058
author_rank: Newbie
timestamp: March 04, 2025, 12:20:45 am
content: Hi daisizhou,Would you happen have URL links to the two LCD panels shown in your photos?Thank you for your reply,Bob G.

author: daisizhou
author_rank: Super Contributor
timestamp: March 04, 2025, 12:47:08 am
content: Quote from: WEL0058 on March 04, 2025, 12:20:45 amhttps://item.taobao.com/item.htm?abbucket=16&id=573718667388&ns=1&pisk=gfVzt5VhK_CyA-Uac5ce39KqYFl-8XS1aWiI-y4nP0moVy0nToqCy0ah2kPEmye5yvsJ8UF4bBO52TUHTXGhfG111z3-9Xj_TDPk233nrDfIqDDmw2MRcZtf1zU-vU-h5-f6YdFvEwpnxkcmi2uZtpAnxZkm52cHZvAknnmxmamSPucALzesdynQRETUqyiQ90AH-vrzgJKWN43hT7wIOBQ3wKmUmoPpNYgCuI0t-HYoqX0mmm3wqQAoEEvm7VdkxBq3oZuKmDcnKftQt7AqJYbEfN9gosWt3c4o0BAwWYDkbz9B9BFsrYP30mujlSurUckxnjF0Zoa3N7HAGIhLlRrUKkB6Hbz3Eb0_y_Rqsz2bTqNCRpoulSk_ix5M0qe0PJV84eRny7NsKcHc-BHIg5MaIu8dWrco-kHTOGd-qy4T6RGNGLcguJqaLg8DvqAzZWeyxpkokqo1uZWljmb3i0hwmppKnq3qfabkppHokqo1uZJppYK-uc_lr&priceTId=214782a017410490172757142eaf23&spm=a21n57.1.hoverItem.2&utparam=%7B%22aplus_abtest%22%3A%229af0a4c3e1cdb6a07304e866d7895450%22%7D&xxc=taobaoSearchHi WEL0058If you really plan to buy from this site, you need a trustworthy Chinese friend or middleman.Because this website requires a real mobile phone number for authentication,And communicate in authentic Chinese.Translation software communication is not necessarily accurategood luck