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8-2
PL14.24ATR
AL+3.3V is not output.
Replace Q705.
No
Yes
Yes
No
FLOW CHART NO.7
Check if there is any leak or short-circuit on the load
circuit. Repair it if defective.
AMP+13V is not output.
FLOW CHART NO.6
Is approxi13V voltage supplied to the cathode
of D653(D655)?
No
Yes
Check C654, C655, D653, D654, D655 and their
periphery circuit. Repair it if defective.
Check C654, C655, D653, D654, D655, R756 and
their periphery circuit. Repair it if defective.
Check Q703, D715 and their periphery circuit.
Repair it if defective.
Is approxi13V voltage supplied to the emitter
of Q705?
Is approxi12V voltage supplied to the base of
Q705?
Check if there is any leak or short-circuit on the load
circuit. Repair it if defective.
P-ON+21V is not output.
Is approxi21V voltage supplied to the
cathode of D650?
No
Yes
Check C651, C652, D650 and their periphery circuit.
Repair it if defective.
FLOW CHART NO.5
Содержание 50PFL4909/F7
Страница 16: ...4 4 PL14 24 A_DC 4 Power Supply CBA S 9 5 Digital Main CBA Unit S 8 Jack Holder Fig D2 ...
Страница 58: ...2014 02 27 13 6 A4DU2EL fm T1701 TRANS POWER BCK 35DH LTT3PCMEK031 Ref No Description Part No ...
Страница 59: ...14 1 PL14 24REV REVISION HISTORY Chassis PL14 24 2014 03 06 50PFL4909 F7 Serial No DS1 First draft added ...
Страница 60: ...PL14 24COM COMPARISON LIST OF MODEL NAMES Chassis PL14 24 50PFL4909 F7 DS1 A4DU2UH ...