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SH-FX67P / SE-FX67P / SH-FX67TPP
1.2.
Before Repair and Adjustment (Digital Receiver SE-FX67)
This model uses switching mode power supply (SMPS) module to provide the necessary voltages for the receiver (SE-FX67P) 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 at AC 120 V, at 60 Hz in NO SIGNAL mode (at volume minimum) 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. � 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 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 & Replacement Parts List. It is essential that these critical partsshould be replaced with manufacturer�s specified parts to prevent shock, fire or other hazards. Do not modify the original designwithout permission of manufacturer.
Table 1 Reference No. A1 18 F1 Part No. K2CB2CB00021 N0AB6GY00005 RFKHFX67P-K Part Name & Description AC CORD SMPS PCB FUSE Remarks [M] [M] (RTL) [M]
