Hitachi 61HDX98B Manual page 101

WAVEFORMS FOR DM-1 VIDEO TROUBLESHOOTING (Continued)
After checking all the DC voltages between the DM-1 and the Main chassis, investigate the Waveforms.
Check on Connector PMZ Pin 1 (Y 2.14)
Check on Connector PMZ Pin 2 (Y. Ref)
If measuring from any PMZ Connector as Reference, other that Ground, make sure the Scope isn't grounded.
Damage to the DM-1 module will occur. Reference Pin example: Pin 2,4,6,8,10, & 12
Check on Connector PMZ Pin 9 (V. Sync)
Check on Connector PMZ Pin 11 (H. Sync)
Check on Connector PMZ Pin 3 (2H Pr 2.14)
Check on Connector PMZ Pin 3 (2H Pr 2.14)
WARNING!
Check on Connector PMZ Pin 5 (2H Pb 2.14)
Check on Connector PMZ Pin 5 (2H Pb 2.14)
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