32LG50D (CHASSIS:LJ82A) - LG TV Service Manual (repair manual). Page 27

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HDMI Video Trouble Shooting
Check sig nal fo rmat
Is it sup ported?
Y
Check JK 600 / JK601( REAR), 
JK70 5(SIDE)
Replace connector
Y
N
Y
Check HDMI  Cable
Check EDID N VRAM (IC603, 
604,700)
Power &  I2C Sig nal (#5, #6)
Replace it o r red ownlo ad
Y
N
Check HD CP Key NVRAM 
(IC102)
Power &  I2C Sig nal (#5, #6)
Replace it
Y
N
Check L 826
Voltag e Level  3.3V
Replace it
Y
N
Check L 602 Voltag e Level 5V
Replace it
Y
N
Check IC60 1 Clo ck Sig nal
#26, #27
Replace it
Y
N
Maybe BCM3553(IC100) has p roblems
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