7-2
A93N2TR
P-ON+5V is not output.
FLOW CHART NO.6
Yes
Yes
No
Is approximately 6V voltage supplied to the base of
Q616?
AL+3.3V is not output.
FLOW CHART NO.5
Yes
No
Is approximately 7V voltage supplied to the collector
of Q605?
Check D637, C628 and their periphery circuit, and
service it if defective.
Check D637, C628 and their periphery circuit, and
service it if defective.
Check Q610, D653, P-ON-H2 line and their
periphery circuit, and service it if defective.
Yes
No
Is approximately 4V voltage supplied to the base
of Q605?
Check D634 and their periphery circuit, and
service it if defective.
Replace Q605.
Is approximately 8V voltage supplied to the collector
of Q616?
Replace Q616.
No
AL+33V is not outputted.
FLOW CHART NO.7
Yes
No
Check if there is any leak or short-circuit on the
loaded circuit, and service it if defective.
Check D619, D623, C616 and their periphery circuit,
and service it if defective.
Is approximately 33V voltage supplied to the cathode
of D619?
AL+15V is not outputted.
FLOW CHART NO.8
Yes
No
Check if there is any leak or short-circuit on the
loaded circuit, and service it if defective.
Check D612, D620, C613 and their periphery circuit,
and service it if defective.
Is approximately 16V voltage supplied to the cathode
of D612?
Summary of Contents for LH7-M19BB
Page 13: ...4 2 A93N2DC 2 Rear Cabinet 1 Stand Assembly S 3 S 2 S 2 S 2 S 2 S 2 S 4 S 4 S 1 Fig D1...
Page 35: ...9 4 A93N2SCM2 Main 2 4 Schematic Diagram...
Page 36: ...9 5 A93N2SCM3 Main 3 4 Schematic Diagram...
Page 37: ...9 6 A93N2SCM4 Main 4 4 Schematic Diagram...
Page 38: ...9 7 A93N2SCF Function Junction Schematic Diagram...
Page 42: ...9 11 A93N2SCD4 Digital Main 4 7 Schematic Diagram...
Page 68: ...LH7 M19BB A93N2EP 2009 07 23...
