XG-MB67X (serv.man3). Troubleshooting Table - Sharp Projector Service Manual (repair manual). Page 6

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XG-MB67X
8 – 6
Are connectorsP701 and P702 fully 
inserted?
NO
Securely insert the connectors.
YES
Is AC voltage between 100 – 240 V 
applied to both ends of C707?
NO
Replace F701.
YES
Is the bimetal broken? (Connection 
between 1 and 2 of P702)
NO
Press the red button on the 
bimetal.
YES
Is R717 open?
NO
Is R705 open?
NO
Check peripheral circuits of 
IC703.
YES
YES
Check that P704 connector pin (11) 
is at "H". Replace R717.
Replace F705. 
Check that the power supply FAN 
FB and FC are not stopped.
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