Magnavox NB500MG9 Service Manual page 19

FLOW CHART NO.6
P-ON+10V is not outputted.
Is 14V voltage supplied to the emitter of Q2603?
Is the voltage of base on Q2603 lower than the
voltage of emitter on Q2603 when turning the power on?
Replace Q2603.
FLOW CHART NO.7
P-ON+5V (1) is not outputted.
Is 5V voltage inputted to the emitter of Q2606?
Is the voltage of base on Q2606 lower than the
voltage of emitter on Q2606 when turning the power on?
Replace Q2606
FLOW CHART NO.8
P-ON+5V (2) is not outputted.
Is 5V voltage inputted to the emitter of Q2604?
Is the voltage of base on Q2604 lower than the
voltage of emitter on Q2604 when turning the power on?
Replace Q2604
FLOW CHART NO.9
P-ON+10.5V is not outputted.
Is 13.5V voltage inputted to the collector of Q2607?
Is 11V voltage inputted to the base of Q2607?
Replace Q2607.
FLOW CHART NO.10
P-ON+1.2V is not outputted.
Is 2.5V voltage supplied to Pin(1) of IC2601?
Replace IC2601.
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Check D1011, D1019, C1017, L1005 and
their periphery circuit, and service it if defective.
Check Q2601 and PWSW3 line and service it if
defective.
Check D1013, D1014, D1015, D1021, C1019,
C1025, and their periphery, and service it if defective.
Check Q2605 and PWSW3 line and service it if
defective.
Check D1013, D1014, D1015, D1021, C1019,
C1025, and their periphery, and service it if defective.
Check Q2605 and PWSW3 line and service it if
defective.
Check D1020, D1023, C1018, C1024, L1003 and
their periphery, and service it if defective.
Is 13.5V voltage inputted to the base of Q2602?
Yes
Check Q2602, D2606,
and their periphery, and
service it if defective.
Check D1016, C1020 and the periphery circuit,
and service it if defective.
1-8-2
No
Check Q2601, D2613,
and PWSW3 line, and
service it if defective.
E5E20TR