Address
304 North Cardinal
St. Dorchester Center, MA 02124

Work Hours
Monday to Friday: 7AM - 7PM
Weekend: 10AM - 5PM

Tag TR

Smartphone & Pad Repair Guide

Huawei tablet BAH3- W09 can’t connect to WiFi for repair

Open Xinzhizhao software, find a circuit reference of mobile phone motherboard using Hi1102V100, measure the power supply according to the schematic diagram, and replace a WiFi chip, and the fault remains.

zll
2023-05-08

Laptop Repair Guide

Lenovo T430s notebook can’t be started for repair

Lenovo T430s notebook can’t be started for repair Machine model: Lenovo T430s Main board number: LSN-4 UMA 11263-2 Fault phenomenon: The customer described that Lenovo T430s notebook could not be turned on when it was powered on. Lenovo T430s notebook can’t…

zll
2023-05-05

Blog, Smartphone & Pad Repair Guide

OPPO A35 can’t be recharged after water is injected.

Observing the motherboard after disassembling, the corrosion is not serious. When the battery is not installed, plug in the charger for the mobile phone, and measure that the positive voltage of the battery is only 1V, which is obviously low. After replacing the charging IC, the charging current returns to normal.

zll
2023-05-05

Desktop PC Schematics

The Schematic, Circuit Diagram PDF file for V-star MS-7b43 drawing.

post_content

zll
2023-05-05

Smartphone & Pad Schematics

The Schematic, Circuit Diagram PDF file for Huawei Magic Schematic

post_content

zll
2023-05-04

Laptop Schematics

The Schematic, Circuit Diagram PDF file for Drawings of Shenzhou Ares z7-kp7s1

The Schematic, Circuit Diagram PDF file for Drawings of Shenzhou Ares z7-kp7s1 File info Pages: 37 Format: PDF File Size: 1.70MB Schematic Preview Download Download XinZhiZao maintenance software to view the full MSI Motherboard 7640-14-0622 Schematic Diagram.

zll
2023-04-28

Laptop Schematics

The Schematic, Circuit Diagram PDF file for Dell Latitude E520,E5470,E5570 And Precision 3510 – LA-C621P – LA-C641P – LA-C64

The Schematic, Circuit Diagram PDF file for Dell Latitude E520,E5470,E5570 And Precision 3510 - LA-C621P - LA-C641P - LA-C64

zll
2023-04-25

Laptop Repair Guide

Repair of Shenzhou Ares Z8-CA5NB without CPU voltage fault

Found PR42 on the back of the chip, found that the end of PR42 19V was corroded, scraped and welded, and then added a new resistor.

yx
2023-04-21

Desktop PC BoardView, Desktop PC Schematics, Laptop BoardView, Laptop Schematics

The Schematic, Circuit Diagram PDF file for Blue sky W540EL/W545EL drawings.

The Schematic, Circuit Diagram PDF file for Blue sky W540EL/W545EL drawings. File info Pages: 37 Format: PDF File Size: 1.70MB Schematic Preview W540EL_W545EL_ESM (2)_0_split Download Download XinZhiZao maintenance software to view the full MSI Motherboard 7640-14-0622 Schematic Diagram.

yx
2023-04-18