Panasonic TC-42PA50C TV the boot after the light has been non-stop, black, no fault repair method of sound -Service Manual Download|Circuit Download|Download Drawings|schematic download|route map download|free download user manual

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Panasonic TC-42PA50C TV the boot after the light has been non-stop, black, no fault repair method of sound

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Measurement DG board power supply voltage is normal. IC1104 SCL2 74 feet, 75 feet SDA2 voltage on the low side. 0.76 V. Measuring IC4005, 81 feet, 82 feet to 0.71 V. Measuring R4069 disconnect IC4005, 81 feet, 82 feet. R4070. Voltage is back to normal. Measure 6 feet 18 feet 3.3 V voltage. IC4005. L4006 circuit, after replacement, troubleshooting.mqqservice manual download site