Toshiba rd-xv48dtkb Service Manual page 27

FLOW CHART NO.6
AL+15V is not outputted.
Is the supply voltage 44V fed to the cathode of D013?
Check for load circuit short-circuiting or leak, and
replace P1(AV ASSEMBLY) if defective.
FLOW CHART NO.7
TU+30V is not outputted.
Is 44V voltage supplied to emitter of Q1511?
Is the "H" pulse (approximately 5V) inputted to
the base of Q1512?
Check Q1511, Q1512 and their periphery, and
replace P1(AV ASSEMBLY) if defective.
FLOW CHART NO.8
AL+12V is not outputted.
Is the supply voltage 12V fed to the cathode of D014?
Check for load circuit short-circuiting or leak, and
replace P1(AV ASSEMBLY) if defective.
FLOW CHART NO.9
P-ON+9V is not outputted.
Is 12V voltage supplied to collector of Q1513?
Is the "H" pulse (approximately 10V) inputted to
the base of Q1513?
Check Q1513 and their periphery, and replace
P1(AV ASSEMBLY) if defective.
Yes
Yes
Yes
Yes
Yes
Yes
No
Check D013 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
No
Refer to "FLOW CHART NO.6"<AL+15V is not
outputted>.
No Check the P-ON-H siganal line, and replace
P1(AV ASSEMBLY) if defective.
No
Check D014 and their periphery, and replace
P3(PW/SW ASSEMBLY) if defective.
No
Refer to "FLOW CHART NO.8"<AL+12V is not
outputted>.
No Refer to "FLOW CHART NO.7"<TU+30V is not
outputted>.
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