Panasonic RX-D50EE Service Manual

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1.2. Before Repair and AdjustmentCaution : DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, fo r instance), as this may destroy solid state devices.After repairs are completed, restore power gradually using a variac, to avoid overcurrent.• Current consumption at AC 230V, 50Hz in TUNER mode at volum e (min) should be (~300 mA).1.3. Caution For Fuse Replacement(M a n u fa c tu re r: L itte lfu s< H n c., Type: 218, F5901, T2AL, 250V)(M a n u fa c tu re r: L itte lfu s e Inc., Type: 218, F5902, T1.6AL, 250V)1.4. Protection CircuitryThe 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.1.5. Safety Part InformationS afety Parts List:There are special components used in this equipment which are important for safety.These parts are marked by A in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that thesecritical parts should be replaced with manufacturer's specified parts to prevent shock, fire or other hazards. Do not modify theoriginal design w ithout permission of manufacturer.Table 1Safety Ref. No. Part No. Part Name & Description RemarksA 14 RKHN0005A-H HANDLEA 401 R D -D APX001-V TR AVER SE UNITA A2 K2CQ 2CA00007 AC CORDA A3 RQ TX1037-R O/I BOOK (Ru/Ur)A PCB3 R EPNT0063E POW ER P.C.B (RTL)A L5901 ELF15N035AN LINE FILTERA T5903 G 4C 4B A H 00002 TR A N S FO R M E RA Z5902 ERZVA5Z471 Z N R S U R G EA F5901 K5D202BLA013 FUSEA F5902 K5D162BLA013 FUSEA FP4100 K5G 502A00039 FUSE PROTEC TO RA FP5903 K5G 502A00039 FUSE PROTEC TO RA JK5901 K2AA2B000014 AC INLETA ZA5901 K3GE1ZZ00001 FUSE HOLDERA ZA5902 K3GE1ZZ00001 FUSE HOLDERA ZA5903 K3GE1ZZ00001 FUSE HOLDERA ZA5904 K3GE1ZZ00001 FUSE HOLDER4All manuals and user guides at all-guides.com