Toshiba DVR80KF - Page 27

1-11-4 E9TK3TR
Is the "H" pulse (approximately 6V) inputted to
the base of Q1106?
Refer to "FLOW CHART NO.16"<P-ON+10V is not
outputted>.
No
Ye s
Check Q1106 and their periphery, and replace
P4(PW/SW ASSEMBLY) if defective.
FLOW CHART NO.15
DVD-P-ON+5V is not outputted.
Is the supply voltage 5V fed to the cathode of D016? Check D016, D1102 and their periphery, and replace
P4(PW/SW ASSEMBLY) if defective.
No
Ye s
FLOW CHART NO.16
P-ON+10V is not outputted.
Is the supply voltage 14V fed to the cathode of D1031? Check D017, D1031 and their periphery, and replace
P4(PW/SW ASSEMBLY) if defective.
No
Ye s
Check Q1100,Q1101,Q1104 and their periphery,
and replace P4(PW/SW ASSEMBLY) if defective.
Check for load circuit short-circuiting or leak, and
replace P1(AV ASSEMBLY) if defective.
FLOW CHART NO.18
SYS+5V is not outputted.
Is 5V voltage outputted to pin 26 of CL1001?
No
Ye s
Check IC1051, IC1052, IC1151, D1152, T1051 and
their periohery, and replace P4(PW/SW ASSEMBLY)
if defective.
Ye s
Check for load circuit short-circuiting or leak, and
replace P1(AV ASSEMBLY) if defective.
Ye s
Is the "H" pulse (approximately 5V) inputted to
the base of Q1107?
Is 3.3V voltage outputted to pin 2 of IC1104?
FLOW CHART NO.17
P-ON+3.3V is not outputted.
Is the supply voltage 5V fed to the cathode of D1101? Check D1101 and their periphery, and replace
P4(PW/SW ASSEMBLY) if defective.
No
Ye s
Check the 1V2CONT signal line, and replace
P1(AV ASSEMBLY) if defective.
No
Check IC1104 and their periphery, and replace
P4(PW/SW ASSEMBLY) if defective.
No