XG-MB67X (serv.man3). Troubleshooting Table - Sharp Projector Service Manual (repair manual). Page 4

XG-MB67X

8 – 4

YES

Is approx. 7 V applied to 
TL9303?

NO

Check IC9301 and peripheral circuits.

YES

Is approx. 26 V applied to 
TL9301?

NO

Check IC9301 and peripheral circuits.

YES

Is approx. -26 V applied to 
TL9302?

NO

Check IC9301 and peripheral circuits.

YES

The main PWB and DMD PWB 
are in poor contact. Check the 
contact surface for dirt and 
smear. Check the DMD con-
nector for breakage. Reassem-
ble the DMD, optical 
mechanism, and DMD PWB. 

1