Sony wm psy 02 service manual

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Ð 2 Ð Specifications ........................................................................... 1 1. GENERAL ...................................................................... 2 2. DISASSEMBLY 2-1. Cabinet (Front) ASSY ................................................ 3 2-2. Main Board ................................................................. 4 2-3. Cassette Holder ........................................................... 4 2-4. Mechanism Deck (MF-WMFX251-114) .................... 5 2-5. Belt, Motor (Capstan/Reel) (M901), Playback Head (HP901) .............................................. 5 3. MECHANICAL ADJUSTMENTS ............................ 6 4. ELECTRICAL ADJUSTMENTS Tape Section ....................................................................... 6 Tuner Section ..................................................................... 7 5. DIAGRAMS 5-1. Explanation of IC Terminals ....................................... 9 5-2. Block Diagram .......................................................... 10 5-3. Printed Wiring Boards .............................................. 13 5-4. Schematic Diagram ................................................... 17 6. EXPLODED VIEWS 6-1. Main Section-1 ......................................................... 22 6-2. Main Section-2 ......................................................... 23 6-3. Mechanism Deck Section ......................................... 24 7. ELECTRICAL PARTS LIST .................................... 25Flexible 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 dam- aged by heat. TABLE OF CONTENTS HOW TO CHANGE 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 Center frequency red 10.70MHz blue 10.67MHz orange 10.73MHz black 10.64MHz white 10.76MHz markCF2 X2 SERVICING NOTES SECTION 1 GENERAL This section is extracted from instruction manual.

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Ð 3 Ð SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. CABINET (FRONT) ASSY r The equipment can be removed using the following procedure. Cabinet (Front) ASSY Set Main board Cassette holder Mechanism deck (MF-WMFX251-114) Belt, Motor (Capstan/Reel) (M901), Playback head (HP901) JIHG F E D C B N M L K Joint (MB) S306 Cabinet (front) ASSY Cassette holder A Cabinet (front) ASSY 1 Insert the precision screwdriver (1.4 mm flat-blade) in to the slit at claw A and release the claw. Note: To avoid the damage to the cabinet, wrap a point of screwdriver with cloth. 2 Remove the cabinet (front) ASSY. (Release all claw B to N in alphabetical order.) Note: On installation cabinet (front) ASSY adjust the S306 and joint (MB).