Check input c onnect JK600, JK601, JK602,
JK603
Can you see the normal waveform?
Check DDC communication lines(IC600,
IC601)
Check the input of HDMI Switch (IC600)
This sign al is TMDS.
Can you see the normal waveform?
YES
YES
NO
JK600, JK601, JK602, JK 603
may have problem. Replace this Jack.
Check the output of HDMI Switch(IC600).
Can you see the normal waveform?
YES
YES
NO
After checking the trace of TMDS lines and power of
HDMI Switch, you should decide to replace HDMI
Switch or not .
NO
NO
After checking the Power of th is chip, you
should decide to replace this or not.
After checking the Power of HDMI Switch y ou
should decide to replace HDMI S witch or not.
YES
Check HDCP communication lines(IC601)
NO
After checking the Power of th is chip, you
should decide to replace this or not.
Check the output of Main IC(IC100).
Especially you should check
The H,V sync and clock.
Can you see the normal waveform?
YES
NO
After checking the Power of Main IC(IC100) you
should decide to replace Main IC or not.
This board has big problem because Main
IC(IC100) have some troubles.
After checking thoroughly all path once again,
You should decid e to replace Main Board or not.
