Sony TV Repair: Common Faults and Solutions.


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Sony Repair Guide: Common Issues and Fixes

Brand Model Fault Detailed Problem Solution By
SONYKDL-40EX720
Hdmi doesn't workReplace sil9287b
SONYMHC-X66
Goes into protection when lifting the volumeCoolerReplace the samebarbadinha
SONYKLV-37NL14A
Error code 6 blinks (backlight)Check inverter_error line capacitors (3v3), look at q4014Lexus
SONYKLD-46Z410
Turns on std by, but then turns it off, a loud beep at the power supply.In the power supply it has 3 trimpot, in my case the defective one was a 22k changed in the power supplyI immediately replaced all the trimpots, placed SMD resistors under the power supply board, it was great.Alex Lopes This email address is being protected from spambots. You need JavaScript enabled to view it.
SONYHCD-EX66
Does not turn on, power supply does not oscillate capacitor remains chargedD930 30vAnderson
SONYFH-B1200
Deck does not drive main engineOpen resistor r306, replace resistor, 5r6
SONYKDL-46W805A
Doesn't start3.3v varyingCi 6301 faulty (power supply primary)Maurilio
SONYKV-29T80
The power turns on, tsound is no brightness, the LED flashes twice in a cycle,Disco capacitor c601, 1k5 by 2kv at power supplyReplace the c601 for another 1k5 by 2kvCLÓVIS
SONYKDL-46NX705
AZ1-H		The TV turns on and appears immediately after the 6th blink, it looked like the LEDs but notSmd fuse power supply board position ps6800 0.5ajucier
SONY KDL-32EX525
Turns on backlight with low brightness.Photocoupler ph6304 with leakage did not stabilize output voltages +150v and -150v.Replacing the ph6304 photocouplerEletrofepar
SONY KDL-32R305B
Does not turn on, the LED flashes 6 timesIt is necessary to inhibit backlight protectionPlace a 10k resistor (pin 31 of the backlight ci - bd9397efv) to ground.Dennys Gross
SONYMHC-EX8
Protect, direct protection when plugged into the socketCapacitor c600 shorted, interfering with the 9volt reg ic690Replace do capacitor c600 100μF x 16voltsTralli
SONYKDL-46R475A
TV completely inoperative, won't turn on.Tsound was only a voltage of 3.3v on the main board (stand-by), with no voltage on the other regulator ICs.Replace transistor q701 (ao4421 smd) on the main board. This transistor powers the u703 regulator.Ferrarini
SONYHCD-GTR66
When turning on the device, the stand-by LED flashed.Smd transistor q1307 in the thermal protection circuit, replacement solved the problem.EduSSantoz
SONYHCD-GTX878
Sound off the panel charactersIt was a simple zeni diode d1291, it is located in the part of the power supply, guys, then make a sound on the components of the power supply squareNANDO ELETRONICO DE SAOJO DO ARRAIL PIAUI
SONYHCD-GTX878
Sound off the panel charactersIt was a simple zeni diode d1291, it is located in the part of the power supply, guys, then make a sound on the components of the power supply squareNANDO ELETRONICO DE SAOJO DO ARRAIL PIAUI
SONYKDL-32BX425
When the logo appears, the TV turns off and the red LED flashes 3 times3v3 regulator u114 I put a 3v3 1117, grounding pin 1.Davi.sls
SONYHCD-GTR33
Does not tune in to the radioTurn on, press the keys: enter/stop/stand by at the same timereginaldo moronte, eletronica junior caldas novas
SONYKLV-40M400A
TV does not turn on, relay activates and disarms then, red STBY LED flashes 4x and repeats.After setting up the power supply on the bench and all the voltages appeared. but when connecting the main board it killed the 12v voltage.SMD ceramic capacitor shorted to ground on the 12v line connected to pin 3 of the IC4051. I removed it and the TV started working again.Jeferson
SONYDSX-A100U
Usb overloadIc 1304 with problem, remove and jam pins 1 and 6, it is on the right side of the coil and has 6 pinsRodrigo cofferi