#Lgtv#Rainbow.How to repair lg tv rainbow problem.

LG TV 21"NORMAL PCB MAIN IC TDA9370PS/N3/A/1747 VERTICAL IC LA7840 VIDEO IC TDA6107JF SOUND IC TDA2006 STR F6654 RAINBOW PROBLEM SOLUTION: 1.Power on/Check vertical supply +14V--------ok. 2.Check vertical supply 14V---------- missing. 3.Power off/Check vertical negetive supply fusible resister------ok. 4.Measure vertical negetive supply diode D443(BA159)-----ok. 5.Measure eht pin continuity------PIN 5(-14V supply) & PIN 10(afc) are internlly open. 6.Connection of lg fly back transformer.6174V-6002K Pin (1,2,3) ,(4,5,6,9,10), (7,8---nc). 7.Open the defective 6174V-6002K. 8.Set new eht. 9.Then------