8-2
A0CN0TR
P-ON+5V is not output.
FLOW CHART NO.6
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?
No
AL+7.5V 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 D637, C628 and their periphery circuit, and
service it if defective.
Is approximately 7.5V voltage supplied to the cathode
of D637?
AL+15V(1) 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-M22 - SERVICE
Страница 13: ...4 2 A0C72_73DC 2 Rear Cabinet 1 Stand Assembly S 3 S 2 S 2 S 2 S 2 S 2 S 4 S 5 S 1 Fig D1...
Страница 36: ...10 4 A0C70SCM2 Main 2 Schematic Diagram...
Страница 37: ...10 5 A0C70SCM3 Main 3 Schematic Diagram...
Страница 38: ...10 6 A0C70SCM4 Main 4 Schematic Diagram...
Страница 39: ...10 7 A0C70SCF Function Junction Schematic Diagram...
Страница 40: ...10 8 Jack Schematic Diagram A0C70SCJ...
Страница 50: ...10 18 Jack CBA Function CBA Junction CBA Top View Function CBA Junction CBA Jack CBA BA0C70F01021...
Страница 51: ...10 19 Jack CBA Function CBA Junction CBA Bottom View BA0C70F01021 Function CBA Junction CBA Jack CBA...
Страница 75: ...LT850 M22 LT851 M22 A0C70EP A0C71EP 2010 06 03...
