Panasonic SA-PT250GCP, Service Manual

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“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
1.4. Safety Parts Information
Safety Parts List:
There are special components used in this equipment which are important for safety.
These parts are marked by
in the Schematic Diagrams & Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design
without permission of manufacturer.
Table 1
Reference No. Part No. Part Name & Description Remarks
340 RAE2023Z-S TRAVERSE UNIT [M]
PC5701 B3PBA0000402 PHOTO COUPLER [M]
PC5702 B3PBA0000402 PHOTO COUPLER [M]
PC5720 B3PBA0000402 PHOTO COUPLER [M]
PC5799 B3PBA0000402 PHOTO COUPLER [M]
D5701 B0FBAR000041 DIODE [M]
DZ5701 ERZV10V511CS ZENER [M]
TH5701 D4CAC8R00002 THERMISTOR [M]
TH5860 D4CC11040013 THERMISTOR [M]
L2101 J0JBC0000015 CHIP INDUCTOR [M]
L2201 J0JBC0000015 CHIP INDUCTOR [M]
L2802 J0JBC0000015 CHIP INDUCTOR [M]
L2803 J0JBC0000015 CHIP INDUCTOR [M]
L2804 J0JBC0000015 CHIP INDUCTOR [M]
L2805 J0JBC0000015 CHIP INDUCTOR [M]
L5001 G0B9R5K00003 LINE CHOKE COIL [M]
L5002 G0B9R5K00004 LINE CHOKE COIL [M]
L5201 G0B9R5K00004 LINE CHOKE COIL [M]
L5301 G0B9R5K00003 LINE CHOKE COIL [M]
L5401 G0B9R5K00003 LINE CHOKE COIL [M]
L5402 G0B9R5K00004 LINE CHOKE COIL [M]
L5701 ELF15N035AN LINE FILTER [M]
L5702 ELF22V035B COIL [M]
L6101 J0JBC0000019 CHIP INDUCTOR [M]
L6201 J0JBC0000019 CHIP INDUCTOR [M]
L6801 J0JBC0000019 CHIP INDUCTOR [M]
L6904 J0JBC0000019 CHIP INDUCTOR [M]
L6905 J0JBC0000019 CHIP INDUCTOR [M]
L6906 J0JBC0000019 CHIP INDUCTOR [M]
L6907 J0JBC0000019 CHIP INDUCTOR [M]
L6908 J0JBC0000019 CHIP INDUCTOR [M]
L6909 J0JBC0000019 CHIP INDUCTOR [M]
T2900 G4D1A0000117 SWITCHING TRANSFORMER [M]
T5701 ETS42BN1A6AD MAIN TRANSFORMER [M]
T5751 ETS19AB236AG BACK-UP TRANSFORMER [M]
F1 K5D802BNA005 FUSE [M]
FP2900 K5G401A00008 FUSE PROTECTOR [M]
P5701 K2AA2B000015 JACK AC INLET [M]
A2 K2CQ2CA00002 AC CORD [M]
C5700 F1BAF1020020 1000P [M]
C5701 ECQU2A334MLA 0.33 [M]
C5703 ECQU2A104MLC 0.1 [M]
C5704 F1BAF1020020 1000P [M]
C5705 F1BAF1020020 1000P [M]
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SA-PT250GCP