ELECTRICAL TROUBLESHOOTING GUIDE
Other function
JK803's pin1,3,
4,6,7,9,10,12 TMDS Data
signal OK?
YES
JK803
soldering OK?
YES
IC807's pin5,7,
8,10,11,13,14,16 TMDS
signal OK?
YES
IC806's video
input signal(pin35~98)
OK?
YES
IC815's video
input signal(pin'C5'~)
OK?
YES
IC500 check
NO
JK803 & HDMI cable
connection check
NO
JK803 Re-soldering
NO
IC807 check
NO
IC806 check
NO
IC815's
pin'A2' LOW?
IC815 check
2-40
NO
YES
MICOM(IC101) check