Tv Smarttech 43 smd components broken identification
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Hi i just finished to look at t-con board it seems that most capacitor are shorted. I put one leg on the ground and meter gives me sound on bot side.. Maybe is better to find another one ..1 PhotoComment
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for which reason the T-CON had one Fuse for 12VCC ,, are this Fuse dummy !!!. if you are talking on short you have on T-CON... use 2 batteries 1.5V so u have 3 V will low current and fed the Fuse with + and the - to t-CON chassis let see if this 3V will die ..Comment
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Hi do you mean right here injection 3v right here, and measured on the t-con 3v test point ? Thanks1 PhotoComment
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about laboratory power supply, can be used after the 3V test ok... then you can increase
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Ok so for start 3v and with amp? I have thermal camera also, to see if any component getting hot(it could be a short right)Last edited by labello; 02-16-2025, 01:22 PM.Comment
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Hi I'm already doing what you say , first when I plugged in the camble, it going a little spark then the power supply going on protection (suppose short) then it seems that chip and a diode . Thank you3 PhotosComment
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by Sam ScarboMy Sparkle (SPI) PC power supply has broken. Originally, there was totally no power output. The 5V-standby was not there. I have replaced a few bulged capacitors but not helping.
I was trying to do more troubleshooting but burned more components. Some got burned so badly that the markings were gone. And also, the markings of a few transistors were gone because the component surface was worn out somehow.
If you happened to have disassembled the same PSU model, please help to provide the markings of some of these components.
See the attached two pictures of the small...09-18-2024, 08:29 AM -
by sylwooHello,
PCB - N300A004L Chicony
Damaged components R111, U601, U901.
Help with the identifations of the components needed.
Pictures attached.
Many thanks in advance.
Regards,
Sylwoo...03-30-2025, 05:46 AM -
Help please with identification of few components for troubleshooting (Solar Water Fountain circuit)Need some help please with a few components on this small board so that I can troubleshoot the circuit.
The PCB is a Single sided board fairly simple circuitry has a +ve and -ve Solar cell power input, a 7.4v 1500mAh (dual 18630 cell) power in which the Solar panel charges the cells, and lastly the Output goes to a DC connector...
J1 is actually 1P1T Switch (in ON position completes Battery cell circuit
J2 - to DC Output
J3 is Battery cell connector
however I am struggling to identify if:
Y1 (SOT-23) are NPN Transistors, MOSFET's or 11v Zener's....2 Photos -
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Hello everyone,
Does anyone have DAG7GCMB8E0 REV: E motherboard and could check for me area of NCP81522(Next to CPU) and confirm if I have got missing components in marked areas and provide their values?
Board suffered liquid damage and someone tried to repair it before.
Thank you... - Loading...
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