Panasonic SA-PMX82EB - Before Repair and Adjustment; Protection Circuitry; Caution for Fuse Replacement; Safety Part Information

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1.2. Before Repair and Adjustment
Disconnect AC power & discharge AC Capacitors (C5700, C5701, C5702, C5704, C5705 and C5706) through a 10ohm, 1W resis-
tor to ground.
Caution : DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
• Current consumption during AC 240V, at 50Hz in NO SIGNAL mode (at volume minimum in FM mode) should be ~200 mA.
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. Caution For Fuse Replacement
1.5. Safety Part 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, Exploded View & 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.
Safety Ref. No. Part No. Part Name & Description Remarks
12 RGR0474J-A REAR CABINET 82EGK,82EGS,82EBK
12 RGR0474J-B REAR CABINET 82GNS
12 RGR0474J-C REAR CABINET 82MEBK
12 RGR0474J-D REAR CABINET 84EGK,84EGS
16 RKM0766-K TOP CABINET 82EGK,82EBK,82MEBK,84EG
K
16 RKM0766-S TOP CABINET 82EGS,82GNS,84EGS
301 TXQ0011 TRAVERSE ASS’Y (E.S.D)
A2 K2CT2YY00089 AC CORD 82EBK
A2 K2CJ2YY00084 AC CORD 82GNS
A2 K2CQ2YY00107 AC CORD 82EGK,82EGS,84EGK,84EGS
A2 K2CT2YY00089 AC CORD 82MEBK
A3 TQBJ0997 O/I BOOK (En) 82MEBK
A3 TQBJ0999 O/I BOOK (En) 82EBK,82GNS
A3 TQBJ2001 O/I BOOK (Ge/It/Fr/Du) 82EGK,84EGK,84EGS
A3 TQBJ2002 O/I BOOK (Da/Sw/Fi) 82EGK,82EGS
PCB4 TNPA6420 SMPS P.C.B (RTL)
C5700 F1BAF102A216 1000pF AC250 <= Vac <315
C5701 F0CAF104A218 0.1uF AC250 <= Vac <315
C5702 F0CAF104A218 0.1uF AC250 <= Vac <315
C5704 F1BAF4710005 470pF AC250 <= Vac <315
C5705 F1BAF4710005 470pF AC250 <= Vac <315
C5706 F1BAF102A216 1000pF AC250 <= Vac <315
DZ5701 D4EAY5110006 DIODE
L5701 G0B103G00023 INDUCTOR
L5702 G0B103G00023 INDUCTOR
T5700 G4DYZ0000085 SWITCHING TRANSFORMER