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CTV WHITE DISPLAY REPAIR

CTV WHITE DISPLAY REPAIR (RGB ERROR)


CTV DISPLAY WHITE  RGB VOLTAGE 1.8V TO 2.5V.
THERE IS ANO VOLTAGE , CHECK VOLTAGE TEST ON MULTIMETER NO READING VOLTAGE CHECK  WIRES AND RESISTOR CHANG BASE OR NECK BOARD CHANGE .
PROBLEM WAS NOT SOLVED



CHECK CROMA IC SECTION  RGB INPUT  AND  OUTPUT  VOLTAGE
AND ZENOR DIODE  100 OHMS RESISTOR BURNED OR OPEN.

PROBLEM WAS NOT SOLVED  CHANGE CROMA IC  FIXING PROBLEM WAS SOLVED.


CHECK HORIZONTAL TRANSFORMER NEAR TRANSISTOR AND VERTICAL CIRCUIT 

CHECK RGB TRANSISTOR AND 2W RESISTOR