Sony WM-PA1 free download

File name WM-PA1.pdf

WM-PA1 SERVICE MANUAL E Model Model Name Using Similar Machanism Tape Transport Mechanism Type WM-FX123 MF-WMFX103-48CY SPECIFICATIONS Radio Section FM :87.6 ­ 108MHz AM :530 ­ 1,710kHz Power Requirements 3V DC Batteries AA (R6) x 2 External DC 3V power sources Battery Life (approximate hours when using the batteries specified below) Battery Sony Alkaline LR6 (SG) Sony R6P (SR) Dimensions 94.2x 119.0 x 36.0 mm Mass 260g incl. batteries and tape Supplied Accessories · Stereo headphones (1) · Belt clip (1) Design and specifications are subject to change without notice. Playback 16 hours 4.5 hours Radio 48 hours 16 hours RADIO CASSETTE PLAYER MICROFILM TABLE OF CONTENTS Specifications ... 1 1. GENERAL Location and Function of Controls ... 2 Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270°C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering. Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. 2. DISASSEMBLY 2-1. Cabinet (Rear) Removal ... 2-2. Cabinet (Front) Removal ... 2-3. Main Board, Mechanism Deck Removal ... 2-4. Cassette Holder Sub Assy Removal ... 2-5. Switch board Removal ... 2-6. Dial Pointer Setting ... 3 3 4 4 5 5 3. ADJUSTMENTS 3-1. Mechanical Adjustment ... 6 3-2. Electrical Adjustment ... 6 4. DIAGRAMS 4-1. Block Diagram ... 8 4-2. Printed Wiring Boards ... 10 4-3. Schematic Diagram ... 15 · HOW TO CHANGED THE CERAMIC FILTERS This model is used two ceramic filters of CF2 and X2. You must used same type of color marked ceramic filters in order to meet same specifications. Therefore, the ceramic filter must changed two pieces together since it's supply two pieces in one package as a spare parts mark Mark mark Center Frequency 10.70MHz 10.67MHz 10.73MHz 10.64MHz 10.76MHz red CF2 X2 blue orange black white 5. EXPLODED VIEWS 5-1. Cabinet and Board Section ... 19 5-2. Mechanism Deck Section ... 20 6. ELECTRICAL PARTS LIST ... 21 SECTION 1 GENERAL LOCATION AND FUNCTION OF CONTROLS 2 VOLUME TUNING · · NORM CrO2/ METAL DX LOCAL FM AM TAPE (RADIO OFF) · · NORM LIMIT AVLS SPEAKER SWITCH p 0)