Panasonic SA-BT100P - Protection Circuitry; Safety Parts Information

1.2.1. Caution for fuse replacement
1.3. Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
•
• •
• No sound is heard when the power is turned on.
•
• •
• Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“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
Ref. No. Part No. Part Name & Description Remarks
1 J0KD00000126 FERRITE CORE [M]
5 REXX0640-J BLACK WIRE (AC-SMPS) [M]
6 REXX0641-J RED WIRE (AC-SMPS) [M]
28 VXY2001-SER BD DRIVE UNIT [M]
33 RGR0382A-A2 REAR PANEL [M] P
33 RGR0382A-B2 REAR PANEL [M] PC
38 RKM0592-K TOP CABINET [M]
A2 K2CB2CB00021 AC CORD [M]
PCB2 RFKB4368A DIGITAL PCB [M] (RTL)
PCB3 RFKB4370A MAIN PCB [M] (RTL)
PCB11 REPX0622V SMPS PCB [M] (RTL)
PCB12 REPX0622V AC INLET P.C.B [M] (RTL)
IC103 RFKWEDF001PA IC EEPROM [M] (RTL)
IC3002 RFKWBT100DS1 IC FLASH ROM [M]
IC3102 RFKWBT100DS2 IC FLASH ROM [M]
IC51001 MN2WS0043AP IC DV LSI [M]
IC51302 C3FBSC000029 IC NAND FLASH ROM [M]
IC51303 C3ZBL0000027 IC EEPROM [M]
DZ5701 ERZV10V511CS ZENER [M]
L5701 ELF15N035AN LINE FILTER [M]
L5702 ELF22V035B LINE FILTER [M]
L5703 ELF22V035B LINE FILTER [M]
T5701 ETS42BM19GAC MAIN TRANSFORMER [M]
T5751 ETS19AB281AG BACKUP TRANSFORMER [M]
T7001 G4D1A0000117 SWITCHING TRANSFORMER [M]
PC5701 B3PBA0000402 PHOTO COUPLER [M]
7
SA-BT100P / SA-BT100PC