Abnormal Plug And Play Operation; Abnormal Ddc2 - Mitsubishi E55LCD Service Manual

5. Abnormal plug and play operation

Abnormal DDC2B
Confirm the output of serial data on IC201 pin 6
synchronize SCLK at TTL level.
NG
OK
1) The host machine isn't communicating in DDC2B mode.
2) The video cable may have failed or may not to have
connections for DDC.
3) Between IC201 pin 6 and J201 pin 15 may have failed.
4) Cable failure.
Failure point
IC201 failure.
Failure point
6-8