Klv-40r472b-volume-updown-repair Sony klv-40r472b workshop received a set with an auto volume issue, where the volume would randomly increase and decrease. The TV was turned on, but the volume control was malfunctioning. _Fault Finding_ 1. Opened the set and checked the voltage on key1 and key2 of the main board’s keyboard. 2. Discovered voltage fluctuations on […]
Klv-40r472b-volume-updown-repair Read More »
l32x5i-led-tv-with-corrosion-issue A Changhong Ruba L32X5I LED TV came to our workshop for repair. The TV was completely dead and wouldn’t turn on. The standby light was also not working. Fault Finding We opened the TV and checked the main supply. The DC voltage was present, but the TV wouldn’t turn on. We then checked the
l32x5i-led-tv-with-corrosion-issue Read More »
klv-48r472b-no-display-repair I repaired the Sony KLV-48R452B model, which had a “no display” fault. Initially, when the set was turned on and off repeatedly, the display would sometimes turn on, and after that, it would work perfectly fine, but there was also a fault in the panel. We will share the details of the panel fault
klv-48r472b-no-display-repair Read More »
sony half screen vertical lines fix A Sony KLV-32EX300 LED TV came to my workshop with a complaint of half screen vertical lines. The customer reported that the set would sometimes work normally, but the Vertical lines are usually present. Fault Finding and Diagnosis I started fault finding by opening the back cover of
sony half screen vertical lines fix Read More »
sony-klv-32ex300-power-failure Problem Overview: Sony KLV-32EX300 LED TV, stating that the TV had been working fine the previous day. However, when they turned it on in the morning, it was completely unresponsive. The standby light, which should typically indicate the TV is in standby mode, was not lit, suggesting the TV was not receiving power. Initial
sony-klv-32ex300-power-failure Read More »
how to fix 2 blinks of klv 40v400a The Sony LED model KLV-40W400A was brought in for repair due to a two blink error indicating a power supply issue. After checking the power supply, which was functioning correctly with accurate voltages, it was found that the twelve-volt supply was not reaching the main board due
how to fix 2 blinks of klv 40v400a Read More »
klv-32r302C 5 blink Error Model number klv-32r302C Sony LED television came to my workshop for repair, the customer said that the set had turned off for a moment while running, when I turned it on again with the remote, the Sony logo showed and the set went to 5 blinks { Fault 5 blinks }
klv-32r302C 5 blink Error Read More »
Klv-32ex330 picture distortion Sony LED TV model KLV32EX330 was brought in for repair due to poor picture quality on cable channels, although HDMI worked fine. Upon inspection, the RF signal was weak, with significant distortion. The tuner’s VCC voltage, clock data, and AGC connection were normal, but the IF output track had open conductor coils,
Klv-32ex330 picture distortion Read More »
Root Cause: 1.2V Core Voltage Drop klv-40W652D dead fault let’s learn how to solve this fault. The symptom was that the TV was not turning on, and the red standby light was not showing either. The core voltage of its MediaTek system IC was generating a very low value—0.987 volts—whereas the correct value here should
klv-40W652D dead fault Read More »
