Home > Electronic Repair > Hisense LCD TV TLM42V78K crash repair example - home appliance repair

Hisense LCD TV TLM42V78K crash repair example - home appliance repair

Source: InternetPublisher:念念Brown Updated: 2020/04/28

Hisense TLM42V78K LCD TV crashed.
Check the power board output voltage and all voltages are normal. The problem lies with the motherboard. Check the power supply of the motherboard data memory DRAM = 0.92V (normally 1.09V). Check that the resistance of the DRAM to ground is normal, indicating that the DRAM is not broken. Check its power supply DC-DC circuit diagram. Check that the power supply of U3 is 5V and is normal. Check that the output of U3 is faulty. =0.92V, I checked D62 and it was good. Replacing it with U3 didn't work, and finally I tried C512.

IMG20160229160322_meitu_1.jpg

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews


Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号