Sony srf mq 11 service manual

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2 SRF-MQ11 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. 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 flow) 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. SAFETY-RELATED COMPONENT 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. T ABLE OF CONTENTS 1. GENERAL ··················\ ··················\ ··················\ ··················\ ·· 3 2. DISASSEMBLY 2-1. Cabinet (Rear) Assy (R) ··················\ ··················\ ·············· 4 2-2. MAIN Board ··················\ ··················\ ··················\ ············· 5 2-3. MICROCOMPUTER Board ··················\ ··················\ ······· 5 2-4. Hanger (R) Section ··················\ ··················\ ··················\ ··· 6 2-5. Speaker (R) ··················\ ··················\ ··················\ ··············· 7 2-6. Cabinet (Rear) Assy (L) ··················\ ··················\ ·············· 7 2-7. Hanger (L) Section ··················\ ··················\ ··················\ ···· 8 2-8. BATTERY Board ··················\ ··················\ ··················\ ······ 9 2-9. Speaker (L) ··················\ ··················\ ··················\ ··············· 9 3. ADJUSTMENTS ··················\ ··················\ ··················\ ······ 10 4. DIAGRAMS 4-1. Block Diagram ··················\ ··················\ ··················\ ········ 12 4-2. Printed Wiring Board -“ MAIN Board -“ ··················\ ····· 13 4-3. Schematic Diagram -“ MAIN Board -“ ··················\ ······· 14 4-4. Printed Wiring Board -“ MICROCOMPUTER Board -“ ··················\ ················ 15 4-5. Schematic Diagram -“ MICROCOMPUTER Board -“ ··················\ ················ 16 4-6. Printed Wiring Board -“ BATTERY Board -“ ················ 17 4-7. Schematic Diagram -“ BATTERY Board -“ ··················\ 18 4-8. IC Pin Function Description ··················\ ··················\ ····· 20 5. EXPLODED VIEWS ··················\ ··················\ ··················\ 21 6. ELECTRICAL PARTS LIST ··················\ ··················\ ··· 22 - Use the Sony AC power adaptor (supplied) only. The polarity of the plugs of other manufacturers may be different. Failure to use the recommended AC power adaptor may cause the unit to malfunction. Polarity of the plug For the customers in the U.S.A. RECYCLING NICKEL METAL HYDRIDE BATTERIES Nickel Metal Hydride batteries are recyclable. You can help preserve our environment by returning your used rechargeable batteries to the collection and recycling location nearest you. F or more information regarding recycling of rechargeable batteries, call toll free 1-800-822-8837, or visit http://www.rbrc.org/ Caution: Do not handle damaged or leaking Nickel Metal Hydride batteries.

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3 SRF-MQ11 SECTION 1 GENERAL This section is extracted from instruction manual. When Disposing of the RadioThis radio has a built-in Nickel Metal Hydride battery. When you recycle the battery, remove it following the procedure below. Certain countries/regions may regulate disposal of the battery used to power this product. Please consult with your local authority. Note Never disassemble this radio excepts when disposing of it. To remove the Nickel Metal Hydride battery The Nickel Metal Hydride battery is stored in the left unit. 1 Remove both screws on the left cabinet (as shown in the illustration) using a Phillips screw driver. 2 Remove the cabinet. 3 Dettach the connector shown by the arrow in the illustration and then remove the screw on the circuit board. 4 Raise the circuit board and remove the Nickel Metal Hydride battery using a thin object, as the battery is secured with tape. L (left) Nickel Metal Hydride battery C onnector Cabinet OFF-ON/ MEGABASS Jog Lever (MODE/ENTER) Molette (MODE/ENTER) Display Afficheur VOL * SENS DX/LOCAL AUDIO IN L (left) L (gauche) Cord Cordon Driver unit OreillettesDC IN 4.5 V R (right) R (droite) * There is a tactile dot beside volume to show the direction to turn up the volume. Un point tactile, situé à côté de la molette de vo lume, indique le sens dans lequel il faut tourner pour augmenter le volume.