Service manual

3.3.3 Plug & Play (DDC2B) Operation Error
Check the SCL line.
Expected failure point
IC218, D2C6 on the VIDEO PWB or signal cable
Check the waveform at Pin 6 of IC218 on the VIDEO PWB.
(Approx. 5Vp-p)
OK
NG
Approx. 5V
Check the voltage at Pin 11 of IC102 on the MAIN PWB.
Expected failure point
D2C6 on the VIDEO PWB
Approx. 0V
DDC1 communication is maintained.
3.3.4 Degaussing Functional Operation Error
Expected failure point
The degaussing coil or TH902, RL901, D950, R954
Confirm that the potential at Pin 47 of IC102 on the MAIN PWB turns the HIGH
level for about 6 seconds when manual degaussing is carried out with OSM.
OK
NG
Expected failure point
IC102 on the MAIN PWB
Check the degaussing control line.
OK
NG
Make checking with CN904 connected.
Check the connections of CN904 on the POWER PWB.
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