Sony ta sa 100 wr service manual
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TA-SA100WR 2 1. SERVICIN NOTES ................................................. 3 2. GENERAL .................................................................. 6 3. DISASSEMBLY 3-1. Disassembly Flow ........................................................... 7 3-2. Cover (Cord) ................................................................... 7 3-3. Case ........................................................................\ ......... 8 3-4. Shield (Top), Power Cord ............................................... 8 3-5. Power SW Board, PANEL Board, Front Panel Block .... 9 3-6. Back Panel, JOINT Board ............................................... 9 3-7. Power Block .................................................................... 9 3-8. POWER Board, AMP Board ........................................... 9 4. DIAGRAMS 4-1. Block Diagram ................................................................ 10 4-2. Printed Wiring Board - AMP Board (Component Side) (Suffi x-11) - ................ 12 4-3. Printed Wiring Board - AMP Board (Conductor Side) (Suffi x-11) - ................. 13 4-4. Printed Wiring Board - AMP Board (Component Side) (Suffi x-12) -................ 14 4-5. Printed Wiring Board - AMP Board (Conductor Side) (Suffi x-12) - ................. 15 4-6. Schematic Diagram - AMP Board (1/2) - ....................... 16 4-7. Schematic Diagram - AMP Board (2/2) - ....................... 17 4-8. Printed Wiring Boards - PANEL Section - ..................... 18 4-9. Schematic Diagram - PANEL Section - .......................... 19 4-10. Printed Wiring Boards - POWER Section - .................... 20 4-11. Schematic Diagram - POWER Section - ........................ 21 5. EXPLODED VIEWS 5-1. Cover Section .................................................................. 26 5-2. Top Shield Section .......................................................... 27 5-3. Front Panel Section ......................................................... 28 5-4. Chassis Section ............................................................... 29 5-5. Power Section ................................................................. 30 6. ELECTRICAL PARTS LIST .............................. 31 TABLE OF CONTENTS Notes on chip component replacement - Never reuse a disconnected chip component. - Notice that the minus side of a tantalum capacitor may be dam- aged by heat. SAFETY-RELATED COMPONET WARNING! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. SAFETY CHECK-OUT After correcting the original service problem, perform the follow- ing safety check before releasing the set to the customer: Check the antenna terminals, metal trim, metallized knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below. LEAKAGE TEST The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes.). Leakage current can be measured by any one of three methods. 1. A commercial leakage tester, such as the Simpson 229 or RCA WT-540A. Follow the manufacturers instructions to use these instruments. 2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job. 3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The limit indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A) Fig. A. Using an AC voltmeter to check AC leakage. 1.5 kΩ 0.15 μF AC voltmeter (0.75 V) To Exposed Metal Parts on Set Earth Ground ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONC- TIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DON- NÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
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TA-SA100WR 3 SECTION 1 SERVICING NOTES UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size) : LEAD FREE MARK Unleaded solder has the following characteristics. - Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! - Strong viscosity Unleaded solder is more viscous (sticky, less prone to fl ow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. - Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. Checking the transmission status You can check the status of sound transmission between the S-AIR main unit and surround amplifier by checking the POWER/ON LINE indicator on the surround amplifier. POWER/ON LINE indicator Status Turns green Sound transmission is established. Flashes green Sound transmission is not established. For details, see Troubleshooting. Turns red The surround amplifier does not output sound. For details, see Troubleshooting. Turns off The surround amplifier turns off or its protection is active. For details, see Troubleshooting. Sound There is no sound. Check the status of the POWER/ON LINE indicator on the surround amplifier. – turns green- The speaker cord is not connected securely. - Check the speaker connections and settings. - The volume of the S-AIR main unit is set to minimum. - The S-AIR main unit is in mute status. - Depending on the source or the settings of the S-AIR main unit, the effect of thespeakers may be less noticeable. - Headphones are connected. – flashes green- The S-AIR main unit is not turned on. - The S-AIR main unit is paired to another S-AIR product. - The surround amplifier is paired to another S-AIR main unit. - Confirm the IDs of the S-AIR main unit and surround amplifier. - Pairing operation is not completed. - Sound transmission is poor. Move the surround amplifier so that the POWER/ON LINE indicator turns green. - Move the system away from any other wireless products. - Stop using another wireless product. - The wireless transceiver and/or the wireless transmitter are/is not inserted correctly. – turns red- Change the SURROUND SELECTOR switch (SURROUND or SURROUND BACK) of the surround amplifier to match the S-AIR main unit. Troubleshooting SUFFIX-11/SUFFIX-12 DISCRIMINATION OF AMP BOARD – AMP Board (Component Side) – IC500 Suffix-11 : 1-875-376-11 Suffix-12 : 1-875-376-12