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4. RGB_PC doesn't display
Check input connect P7004. Can you see the normal waveform? No P7004 may have problem. Replace this Jack. Yes After checking the input TR of RGBHV, you
Check the input of Component switch(IC5002). should decide to replace these components or Can you see the normal waveform? No not. Yes
Check output Component switch(IC5002). After checking the Power of RGB switch you Can you see the normal waveform? should decide to replace component switch or not. No Yes After checking the Power of MST3361 you should decide to replace MST3361 or not. No Yes
Check the input of MST3361(IC7004 Pin41,44,46). Can you see the normal waveform?
- 20 Yes
Check output MST3361(IC7004 ). After checking the Power of MST3361 you should Can you see the normal waveform? decide to replace MST3361 or not. No
Check the input and output of BCM3550(IC4006). This board has big problem because Especially you should check Main chip(BCM3550) have some troubles. The H,V sync and clock. Yes After checking thoroughly all path once again, Can you see the normal waveform? You should decide to replace BCM3550 or not.
