Issue : Plug in no power , fan not turning on
Physical check no burn parts or physically damage parts.
Check ac line good however no voltage in main filter capcitor.
Check rectifier diode and found out was faulty. Replace two rectifier diode check aswell igbt 60n60 and there was a leak so...
7 blinking red light not turning on
Check backlight may pundi Isang led
Palitan lahat backlight para Iwas backjob.
After ma palitan di parin sya gagana so need pumuntan smode
Press hold menu key and power then saksak yung plug
After that release yung mga button
Then up and down then press...
Dell laptop white screen
Check all lvds connector from the lcd and cleaned still same problem.
Go to mother board clean the mother board and lvds connector in the mainboard still same outcome
Put a jumper wire from lcdvdd in line 6, 7, or 8 and jump it to 3.3v line 28 in the lvds connector...
Pa help po lenovo m7 tb-7305x po ata eto Bago lcd old flex parin gamit ko which is sa original may basag Yung dati lcd pero unit lang kaya nag pa replacement sintumer Kasi di mag totouch ngayon dumating lcd pero di parin mag totouch. Baka Meron kayo idea or schematic nya thanks po in advance
Customer bring TCL tv no power.
Initial check there no voltage of 300v in the main filter capacitor.
Check for shorted smd cap resistor and hang MOSFET still no Voltage only 5v reading in main filter capacitor.
Check fuse is broken and needed to replace a new one
Still no voltage upon...
Panasonic inverter electric fan
No power ..
Check main socket connection power supply
Capcitor is shorted but the main cause is the shocky diode.
There's a leak in shocky diode
Replace with a new one..
Problem solve..
sharp lc-40le265m sharp 40 inch
Issue : vertical rolling, discoloration, black screen, fading screen with vertical line to faded black..
Check voltage in top board panel all voltage is present
Vgh,vgl and 3.3v and 1.8v.
Check side cof all voltage complete no sign of abnormalities.
Where's the...
Check charging port all good voltage is 5v.
But the line in charging flex positive is missing .
Put a Jumper wire from charging board positive to main board for the 5v line..
Charging ok
schematic ok
Repair success
Sana po makatulong
Speaker does not have any audio do basic trouble shooting and always check all components and even jumper wire..
Components all good physically however notice a leak in capacitor and due to leak there was a jumper wire broke .. fix both and audio is back to normal..
Samsung A12
SM-A127F/G BOARD
ISSUE: Backlight good schematic charging 1.7 to 1.5 amps.
No Borneo schematic so check manually using tester and research of possible leak or shorted. Backlight coil and shorted smd caps replace get to other dead board.
See below picture..
ISSUE SOLVED HOPE IT...
INITIAL AND PHYSICAL FINDING.
SAMSUNG CCFL BACKLIGHT PUNDI
MOSFET SHORTED
FUSE SABOG DIN.
Focus sa power supply master since walang power SABOG fuse kaya pinalitan ko. Pero Pag power on sinisibak ang fuse second try pinalitan ko fuse ulit and check mga MOSFET nya sa bandang Backlight...
Samsung LCD TV TUNER PROBLEM.
NO OFFENSE SA TECHNICIAN NA GUMAWA NG TUNER.
technician reinstall the tuner in doing a shortcut way but the problem is possible grounding or not quality image.
Ginawa ko as you can see in the picture nilagyan lang ng wire working but not quality image .. putol...
May leak Ang audio ic kaya kumuha ako Ng same data sheet Ng audio ic nya galing ibang board Basta same Ng data sheet at pin out pasok Yun.. pwede Rin convert pero mas maganda Yung nasa board parin syempre Yung aayusin para malinis
Good morning mga master pa help naman ako po oppo A83 palit LCD pero nung pinalitan ko NASA 0.7amp Lang po sa schematic charging and ok naman yung 4v nya papuntang battery and may 3.7v Yung batt. Pero Di sya nag o on or vibrate no display din po Yung bagong lcd.. Sana po may maka help...
God...
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