Samsung YP-U2 MP3 player, an impossible mission? - Page 1
Forum section: electronics / repair

author: digik
author_rank: Regular Contributor
timestamp: December 29, 2016, 12:43:23 pm
content: I have this MP3 player by samsung, model YP-U2 and I need to replace the cracked LCD display (res: 128*64, 3V). This is a desperate task, because i didn't found a spare and the only one available from ebay is too expensive and i don't want to order from ebay because of paypal. Lukily i have the service manual of this thing so you can see the pinout of the LCD connector that goes on the microcontroller (Sigmatel STMP3550B). As said the problem is that i cannot find a direct sapre, however if you go to aliexpress you can find generic 128*64 display "arduino compatible" like this:https://www.aliexpress.com/item/14PIN-FSTN-12864-LCD-ST7567-Drive-IC-Amber-LED-Backlight-SPI-Interface-3-3V/32287004526.html?ws_ab_test=searchweb0_0,searchweb201602_2_10065_10068_10000009_10084_10083_10080_10082_10081_10060_10061_10062_10056_10055_503_10054_10059_10099_10078_501_10079_427_426_10103_10073_10102_10096_10052_10050_10107_10051_10106,searchweb201603_2,afswitch_5&btsid=749153a2-3b97-41a2-91e2-e3745b0c2a22BUT those LCD have all different number of pins and the one of the MP3 player do have 17pins. The question is: would be possible to adapt one of those generic LCD to my MP3 player? You can look the schematic that i linked, so you can suggest something situable for my purpose. Thanks in advance. FULL SERVICE MANUAL:https://www.manualslib.com/manual/1156790/Samsung-Yp-U2.htmlSchematic:

author: Armadillo
author_rank: Super Contributor
timestamp: December 29, 2016, 01:13:33 pm
content: Quote from: digik on December 29, 2016, 12:43:23 pmI think the price is only for the backlight and does not include the LCD.

author: Shock
author_rank: Super Contributor
timestamp: December 29, 2016, 01:15:47 pm
content: http://www.ebay.com/itm/232186829053

author: bktemp
author_rank: Super Contributor
timestamp: December 29, 2016, 01:19:44 pm
content: Quote from: digik on December 29, 2016, 12:43:23 pmNo. At least not the one from your link.The display needs to use the same interface mode (mp3 player: 6800 mode, display from your link: SPI) and it needs to support the same command set, otherwise it won't work.According to the service manual the original display is TM12864F G-1,YP-U2, but I can not find any information. There seem to be many different TM12864F versions.

author: digik
author_rank: Regular Contributor
timestamp: December 29, 2016, 01:39:42 pm
content: Uh, ok. So the one on the samsung has a parallel bus. I've found this:http://www.everychina.com/p-z51e9674-91622449-supply-cog-128x32-128x64-graphic-lcd-displays-modules.htmlbut it has much more than 17pins

author: digik
author_rank: Regular Contributor
timestamp: December 29, 2016, 01:47:57 pm
content: What about this? It seems compatible and have 18pins:http://www.coineltech.com/128x64-graphical-lcd-tm12864h6ccgwa-1you can also see the datasheet

author: wraper
author_rank: Unknown
timestamp: December 29, 2016, 01:50:19 pm
content: Quote from: digik on December 29, 2016, 01:47:57 pmController must be different. Why don't you post a picture of the actual LCD? You have not even said if there is any part number on the LCD, and nothing about interface except 17 pins, no type of connector / flex, nothing.

author: digik
author_rank: Regular Contributor
timestamp: December 29, 2016, 01:57:34 pm
content: Because i've broken it and now is in the bin. Is it possible to know the controller from the service manual of the device? Why do you say that the controller MUST be different? And BTW the lcd didn't have any controller onboard, maybe a chip on glass. The number on the flex cable is:TM12864D9GCWG FP-4A picture from a link onlinehttp://www.audioevideoservice.it/product.php~idx~~~597~~display~.htmlThanks.

author: wraper
author_rank: Unknown
timestamp: December 29, 2016, 02:04:46 pm
content: Quote from: digik on December 29, 2016, 01:57:34 pmAndnothing(except it's shape) important visible on the picture. Who in sane mind throws out old parts before even finding a suitable a replacement.

author: bktemp
author_rank: Super Contributor
timestamp: December 29, 2016, 02:09:17 pm
content: From the information you have at the moment your only option is to get an original replacement display, because the display looks like a custom one, made specifically for this mp3 player.

author: digik
author_rank: Regular Contributor
timestamp: December 29, 2016, 02:16:50 pm
content: The display has nothing written on it. The only number is on the flat cable that i gave you. The flat has two connectors: The first goes directly on the screen itself and has 35pins and is melted on the glass of the screen. The second has 17pins and goes on the connector of the MP3 player. That's all.

author: Shock
author_rank: Super Contributor
timestamp: December 29, 2016, 10:09:16 pm
content: Reality check please.

author: digik
author_rank: Regular Contributor
timestamp: December 30, 2016, 10:29:40 am
content: Solved! I smashed the damn thing into 1000 pieces and throwed away. FUCK YOU SAMSUNG and your custom parts. I now ordered a sony, which i know will be an equally pain in the ass in case of repair. Always hated custom parts.

author: SeanB
author_rank: Super Contributor
timestamp: December 30, 2016, 09:07:30 pm
content: Pty, I have one with a perfect display, just worn out flash and pouch cell.............I like it for the Ogg support, and the decent audio driving ability, just the battery life is now kind of short.

author: Skimask
author_rank: Super Contributor
timestamp: December 31, 2016, 12:45:21 am
content: Quote from: digik on December 30, 2016, 10:29:40 amWhen you figure something out that's NOT obvious, post it...Everybody uses custom parts.Damn near nobody makes consumer electrics serviceable.Those that don't know (eg. The O/P) what they don't know, don't know that they don't know what they don't know.

author: Shock
author_rank: Super Contributor
timestamp: December 31, 2016, 07:39:58 am
content: Using an mp3 player instead of a mobile phone should be a crime.

author: SeanB
author_rank: Super Contributor
timestamp: December 31, 2016, 08:12:58 am
content: Player is smaller, lasts longer on a charge, fits in a small pocket. What more do you want.