Panasonic sa btt 505
This is the 54 pages manual for panasonic sa btt 505.
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2 3 TABLE OF CONTENTS PAGE 1 Safety Precautions ----------------------------------------------- 3 1.1. General Guidelines ----------------------------------------- 3 1.2. Leakage Current Cold Check ----------------------------- 3 1.3. Leakage Current Hot Check (See Figure 1.) --------- 3 1.4. Protection Circuitry-------------------------------------------\ 3 2 Warning -------------------------------------------------------------- 4 2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensitive (ES) Devices ----------- 4 2.2. Caution for AC Cord --------------------------------------- 5 2.3. Precaution of Laser Diode ------------------------------- 6 2.4. Static Electricity Protection Measures ----------------- 7 2.5. Ground for Electrostatic Breakdown Prevention ---------------------------------------------------- 7 3 Service Navigation ----------------------------------------------- 8 3.1. Service Information ----------------------------------------- 8 3.2. How to Update Firmware ---------------------------------- 8 4 Specifications ----------------------------------------------------- 11 4.1. Others (Licences) ------------------------------------------ 12 5 Location of Controls and Components ------------------- 13 6 Installation Instructions ---------------------------------------- 15 6.1.Speaker Connection- --------------------------------------- 15 6.2.Connection to a TV- ----------------------------------------- 15 6.3.FM Antenna Connection ----------------------------------- 15 7 Operating Instruction ------------------------------------------- 16 7.1. Take out the Disc from Drive Unit when the Disc cannot be ejected by the OPEN/CLOSE button ----------------------------------------------------------- 16 8 Multiple Pressing Function ------------------------------------ 17 8.1.About the Multiple Pressing of the UnitsRemote Control ---------------------------------------------------------- 17 8.2.How to enter the Special Modes using theMultiple Pressing Function of the UnitsRemote Control ------ 17 9 Service Mode ------------------------------------------------------ 20 9.1.About the Service Mode ----------------------------------- 20 9.2.Service Mode List ------------------------------------------- 21 9.3.Self-Diagnostics Functions -------------------------------- 22 10 Troubleshooting Guide --------------------------------------- 23 10.1. About Operation of Set ---------------------------------- 23 10.2. After Servicing --------------------------------------------- 24 11 Wiring Connection and Voltage Data --------------------- 35 12 Disassembly and Assembly Instructions --------------- 38 12.1.Disassembly Flow Chart --------------------------------- 38 12.2.P.C.B. Location --------------------------------------------- 38 12.3.Disassembly Procedure ---------------------------------- 39 13 Measurements and Adjustments -------------------------- 43 13.1.When Replacing the Mechanism Unit and/or Digital P.C.B. Unit ------------------------------------------- 43 13.2.When Replacing the Front P.C.B.Unit and/or NFC P.C.B. Unit. --------------------------------------------- 48 13.3.Caution for Replacing Parts ----------------------------- 51 14 Exploded View and Replacement Parts List ----------- 52 14.1. Replacement Parts List ---------------------------------- 52 14.2. Casing Parts & Mechanism Section ------------------ 53 14.3. Packing & Accessories Section ------------------------ 54
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3 1 Safety Precautions 1.1. General Guidelines 1. IMPORTANT SAFETY NOTICE There are special components used in this equipment which are important for safety. These parts are marked by in the Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts should be replaced with manufacturers specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify the original design without permission of manufacturer. 2.An Isolation Transformer should always be used during the servicing of AC Adaptor whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during servicing. 3.When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. 4.After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed. 5. After servicing, make the following leakage current checks to prevent th\ e customer from being exposed to shock hazards. 1.2. Leakage Current Cold Check 1.Unplug the AC cord and connect a jumper between the two prongs on the plug. 2.Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part onthe equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to thechassis, the reading should be between 1 MΩ and 5.2 MΩ. When the exposed metal does not have a return path to the chas-sis, the reading must be infinity. 1.3. Leakage Current Hot Check (See Figure. 1) 1.Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 2.Connect a 1.5 kΩ, 10 W resistor, in parallel with a 0.15 μF capacitor, between each exposed metallic part on the set and a good earth ground, as shown in Figure. 1. 3.Use an AC voltmeter, with 1 kΩ/V or more sensitivity, to measure the potential across the resistor. 4.Check each exposed metallic part, and measure the voltage at each poi\ nt. 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 V RMS. A leakage current tester (Simpson Model 229 or equivalent) maybe used to make the hot checks, leakage current must not exceed 1/2 mA. In case a measurement is outside of the limitsspecified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned tothe customer. 1.4. Protection Circuitry The protection circuitry may have operated if either of the following co\ nditions 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 areshorted, 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 of f and then on again. Figure. 1