Panasonic se fx 61 gn service manual
This is the 64 pages manual for panasonic se fx 61 gn service manual.
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Extracted text from panasonic se fx 61 gn service manual (Ocr-read)
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1 Safety Precautions 3 1.1. GENERAL GUIDELINES 3 1.2. Before Repair and Adjustment (Digital Receiver SE- FX61GN) 3 1.3. Protection Circuitry 4 2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices 5 3 Handling the Lead-free Solder 6 3.1. Service caution based on legal restrictions 6 4 Accessories 7 5 Using of Digital Receiver Unit 8 5.1. Connecting the digital transceiver (SH-FX80TGN) 8 5.2. Connecting the surround speaker cables to the wireless system (SE-FX61GN) 8 5.3. AC Power Cord connection (SE-FX61GN) 8 5.4. Making the wireless link (SE-FX61GN) 9 6 Technical Information (Wireless Surround) 10 6.1. RF Wireless Audio Transceiver 10 6.2. Detail Block Diagram (Receiver module) 11 6.3. Class-D Amplifier 15 7 Assembling and Disassembling 18 7.1. Note 18 7.2. Disassembly flow chart (For SE-FX61GN) 19 7.3. Main Parts Location Diagram 19 7.4. Disassembly of Wireless System (SE-FX61GN) 20 7.5. Disassembly of Digital Transceiver (SH-FX80TGN) 25 8 Service Positions 28 8.1. Checking of Led and Receiver Module P.C.B. 28 8.2. Checking of Digital Amp and SMPS Module Unit 29 9 Service Hint 30 9.1. Use of Service Jig (RFKZFX50PP-S) 30 9.2. Procedures for testing of link between digital transmitter & receiver 31 9.3. Troubleshooting Guide for Wireless Surround Speaker 33 10 Service parts replacement 35 10.1. Replacement of P.C.B. 35 10.2. Replacement of Transmitter Assembly 35 10.3. ID Location 36 10.4. Digital Transceiver Card Service Assembly (RFKVHFX80TE) 37 11 Voltage Measurement 38 11.1. DIGITAL AMP P.C.B. 38 11.2. LED P.C.B. 38 12 Wiring Connection Diagram 39 13 Block Diagram 41 13.1. DIGITAL AMP MODULE BLOCK 41 13.2. RECEIVER MODULE BLOCK 42 13.3. TRANSIMITTER MODULE BLOCK 43 14 Notes of Schematic Diagram 45 15 Schematic Diagram 47 15.1. DIGITAL AMP CIRCUIT and LED CIRCUIT 47 15.2. RECEIVER MODULE CIRCUIT 48 15.3. TRANSMITTER MODULE CIRCUIT 50 16 Printed Circuit Board Diagram 53 16.1. DIGITAL AMP P.C.B and LED P.C.B 53 16.2. RECEIVER MODULE P.C.B and TRANSMITTER MODULE P.C.B 54 17 Illustration of IC's, Transistors and Diodes 55 18 Terminal Functions of Integrated Circuits 56 18.1. IC12 (M9Z000000013): IC RF 56 19 Exploded Views 57 19.1. Cabinet Parts Location 57 19.2. Packaging 58 19.3. Main Unit Packaging 59 20 Replacement Parts List 60 20.1. Parts List (SE-FX61GN) 60 20.2. Parts List (SH-FX80TGN) 62 CONTENTS Page Page 2 SH-HT995 WGN
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1 Safety Precautions 1.1. GENERAL GUIDELINES 1. Whenservicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 2. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installe d. 3. After servicing, make the following leakage current checks to prevent the customer from being expose d to shock hazards. 1.1.1. LEAKA GECURRENT COLD CHECK 1. Unplug the AC cord and connect a jumper between the two prongs on the plug. 2. Measure the resistance value, with anohmmeter, between the jumpered AC plug and each expose d metallic cabine t part on the equipment such as screwheads, connectors, control shafts, etc.When the exposedmetallic part has a return path to the chassis, the reading should be between 1MΩand 5.2Ω. When theexpose d metal does not have a return path to the chassis, the reading must be . Figure. 1 1.1.2. LEAKA GECURRENT HOT CHECK (See Figure 1.) 1. Plug the AC cord directly into the AC outlet. Do not use an isolatio n transformer for this check. 2. Conne ct a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF capacitors, between each expose d metallic part on the set and a good earth ground such as a water pipe, as shown in Figure 1. 3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor. 4. Check each expose d metallic part, and measure the voltage at each point. 5. Reverse the AC plug in the AC outlet and repeat each of the above measurements. 6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may be used to make the hot checks, leakage current must notexceed 1/2 milliamp. In case a measurement is outside of the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to the customer. 1.2. Before Repair and Adjustment (Digital Receiver SE-FX61GN) This model uses switching mode power supply (SMPS) module to provide the necessary voltages for the receiver (SE-FX61GN) 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 consum ption at AC 230-240V, 50Hz in NO SIGNAL mode should be ~150 mA. This model uses the switching mode power supply unit (SMPS) to provide necessary voltage supply for powering. 3 SH-HT995 WGN