8-2
A0CN0TR
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 5V 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 Q607, 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 7.5V 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 15V voltage supplied to the cathode
of D612?
Содержание LT850-M19 - SERVICE
Страница 13: ...4 2 A0CN0DC 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...
Страница 36: ...10 4 A0CN0SCM2 Main 2 Schematic Diagram...
Страница 37: ...10 5 A0CN0SCM3 Main 3 Schematic Diagram...
Страница 38: ...10 6 A0CN0SCM4 Main 4 Schematic Diagram...
Страница 39: ...10 7 A0CN0SCF Function Junction Schematic Diagram...
Страница 70: ...LT850 M19 LT851 M19 A0CN0EP A0CN1EP 2010 05 25...
