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1-11-3 E9TK3TR

FLOW CHART NO.11

AL+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.

Ye s

Check for load circuit short-circuiting or leak, and

replace P1(AV ASSEMBLY) if defective.

FLOW CHART NO.12

P-ON+5V(VCR) is not outputted.

Is 5V voltage supplied to collector of Q1517? Refer to "FLOW CHART NO.11"<AL+5V is not

outputted>.

Ye s

Is the "H" pulse (approximately 6V) inputted to

the base of Q1517?

Refer to "FLOW CHART NO.9"<P-ON+9V(VCR) is

not outputted>.

Ye s

Check Q1517 and their periphery, and replace

P1(AV ASSEMBLY) if defective.

FLOW CHART NO.13

ECO+5V is not outputted.

Is 5V voltage supplied to collector of Q1520? Refer to "FLOW CHART NO.11"<AL+5V is not

outputted>.

Ye s

Is the "H" pulse (approximately 6V) inputted to

the base of Q1520?

Refer to "FLOW CHART NO.14"<ECO+9V is not

outputted>.

Ye s

Check Q1520 and their periphery, and replace

P1(AV ASSEMBLY) if defective.

FLOW CHART NO.14

ECO+9V is not outputted.

Is 12V voltage supplied to collector of Q1521?

Refer to "FLOW CHART NO.8"<AL+12V(ECO+12V)

is not outputted>.

Ye s

Check Q1521 and their periphery, and replace

P1(AV ASSEMBLY) if defective.

Toshiba DVR80KF Service Manual

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