索尼SONY WM-FS555电路图.pdf
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1、WM-FS555/FS556 SERVICE MANUAL SPECIFICATIONS US Model WM-FS555/FS556 Canadian Model AEP Model E Model WM-FS555 Model Name Using Similar MechanismNEW MD Mechanism TypeMF-WMFS555-114 9-873-595-02 2003A0200-1 2003.01 Sony Corporation Personal Audio Company Pubulished by Sony Engineering Corporation RAD
2、IO CASSETTE PLAYER Photo : WM-FS555 Frequency TV: 2-13 ch WEATHER: 1-7ch FM: 87.5-108 MHz AM: 530-1710 kHz (North, Central and South America) 531-1602 kHz (Other counries) Power requirements 1.5 V DC battery size AA (R6) 1 Dimensions Approx. 102.3 117.5 47.3 mm (4 1/8 4 3/4 1 7/8 inches) including p
3、rojecting parts and controls Mass Approx. 219 g (7.8 oz) (main unit only) Supplied accessories Stereo headphones or earphones (1) Hand strap with belt clip (1) Design and specifications are subject to change witout notice. Ver 1.1 2003.01 ? ? ? ? ? ? ? ? ? ? 2 WM-FS555/FS556 Specifications . 1 1.GEN
4、ERAL. 2 2.DISASSEMBLY 2-1. Chassis, H/P Board . 3 2-2. Main Board . 3 2-3. Mechanism Deck . 4 2-4. Belt, Capstan/reel Motor (M601), Magnetic Head (Playback) (HP601). 4 3.ADJUSTMENTS 3-1. Mechanical Adjustments . 5 3-2. Electrical Adjustments. 5 4.DIAGRAMS 4-1. Explanation of IC Terminals. 8 4-2. Blo
5、ck Diagrams . 9 4-3. Printed Wiring Boards Main Section . 10 4-4. Schematic Diagram Main Section (1/2) .11 4-5. Schematic Diagram Main Section (2/2) . 12 4-6. IC Block Diagrams . 13 5.EXPLODED VIEWS 5-1. Cassette Lid Section . 15 5-2. Cabinet Section. 16 5-3. Mechanism Deck Section (MF-WMFS555-114).
6、 17 6.ELECTRICAL PARTS LIST. 18 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270C 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 unso
7、ldering. 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 SECTION 1 GENERAL TV/WEATHER (US), FM (EXCEPT US) HOLD VOLUME* TUNING+/ x Y PRESET +/ FM/AM (US), AM (EXCEPT US) RADI
8、O OFF M n* m MENU SET ENTER Rubber cap Air outlet i * There is a tactile dot beside VOLUME on the main unit to show the direction to turn up the volume. *The button has a tactile dot. This section is extracted from instruction manual. ? ? ? ? ? ? ? ? ? ? 3 WM-FS555/FS556 2 Two screws (B1.7 8) 1 Open
9、 the “lid, Cassette” H/P board 5 3 Claws Cabinet (rear) sub ASSY Chassis 4 SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. CHASSIS, H/P BOARD 2-2. MAIN BOARD z The equipment can be removed using the following procedure. Main boardChassis, H/P boardMec
10、hanism deckBelt, Capstan/reel motor (M601), Magnetic head (playback) (HP901) Set 1 Remove solder (four places) 3 Screw (WH M1.4) 2 Remove solder (six places) 4 Claws 5 Main board Head flexible board Chassis ? ? ? ? ? ? ? ? ? ? 4 WM-FS555/FS556 2-3. MECHANISM DECK 2-4. BELT, CAPSTAN/REEL MOTOR (M601)
11、, MAGNETIC HEAD (PLAYBACK) (HP901) 1 Claws Mechanism deck Chassis 2 wheel ASSY (P), capstan wheel ASSY (P), capstan Belt How to apply the belt Capstan/reel motor (M601) 1 Belt 5 magnetic head (PLAYBACK) (HP901) 3 Capstan/reel motor (M601) 2 Two screws (M1.4) 4 Two screws (M1.4) Mechanism deck ? ? ?
12、? ? ? ? ? ? ? 5 WM-FS555/FS556 3-2. ELECTRICAL ADJUSTMENTS PRECAUTION Supplied voltage : 1.5 V. Switch and control position (MENU display) MEGA BASS : OFF VOLUME control (RV301) : maximum AVLS : OFF (No indicated) FM MODE : US : DX (No indicated) Canadian, AEP, E : STEREO (No indicated) TAPE SECTION
13、 Test Tape TypeSignalUsed for WS-48A3kHz, 0dBTape Speed Adjustment Tape Speed Adjustment Procedure : 1. Playback WS-48A (tape center part) in the FWD state and ad- just RV601 so that the frequency counter reading becomes 3,000Hz. Standard value : 2,9853,015Hz 2. Playback WS-48A (tape center part) in
14、 the REV state. Check that frequency counter reading is within 1.0% of the reading of step 1. Adjustment Location : 3-1. MECHANICAL ADJUSTMENTS PRECAUTION 1. Clean the following parts with a denatured-alcohol-moistened swab : playback headpinch roller capstanrubber belt 2. Demagnetize the playback h
15、ead with a head demagnetizer. Do not use a magnetized screwdriver for the adjustments. 3. These measurement and adjustment should be performed with the rated power supply voltage (1.5 V) unless otherwise noted. Torque Measurement ModeTorque meterMeter reading FWD 1.97 4.11 mN m 20 42 g cm (0.28 0.58
16、 oz inch) FWD CQ-102C less than 0.19 mN m less than 2 g cm back tension (less than 0.027 oz inch) 1.97 4.11 mN m REV20 42 g cm (0.28 0.58 oz inch) REV CQ-102RC less than 0.19 mN m less than 2 g cm back tension (less than 0.027 oz inch) FF, REWCQ-201B more than 3.93 mN m more than 40 g cm (more than
17、0.56 oz inch) SECTION 3 ADJUSTMENTS 0 dB = 0.775V set test tape WS-48A (3kHz, 0dB) frequency counter 16 phones jack (J301) RV601: Tape speed Adjustment ? ? ? ? ? ? ? ? ? ? 6 WM-FS555/FS556 C9 L2 L7 L4 AM FERRITEROD ANTENNA L5 C30 R10 C26 R9 R8 C22 4 D2 R13 Q302 C29 R7 TP (VT) C31 C24 R213 C21 R6 C13
18、 C331 C14 C19 L3 R113 C28 R5 D1 OFF Q305 C23 C35 C107 C207 R716 C20 JC1 C15 Q703 D3 R20 R21 TP304 R2 R3 C11 C12 R107 R108 R105 R205 R208 R207 TAP102 TAP103 TAP104 11 (11) 1-682-795- MAIN BOARD (SIDE B) TP (VT) digital voltmeter (DC range) TUNER SECTION AM Section BAND : AM FM Section BAND : FM US mo
19、del only TV/WEATHER Section BAND: TV/WEATHER Adjustment Location : Main board (See page 7) 0 dB = 1V AM RF signal generator 30% amplitude modulation by 400Hz signal. Output level : as low as possible Put the lead-wire antenna close to the set. set 16 phones jack (J301) level meter Frequency Coverage
20、 Adjustment Setting : C9 L2 L7 C L4 AM FERRITEROD ANTENNA R10 C26 R8 C22 C34 D2 R5 D1 D4 Q305 C23 C35 C107 C207 C2 C15 FB301 C1 C37 JC4 FB1 TP304 TAP103 TAP105 TAP106 1-68 US FM RF signal generator 33.75kHz frequency deviation by 1kHz signal. Output level : as low as possible TP (RF) 0.01F MAIN BOAR
21、D (SIDE B) TP(RF) Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. no mark : 10kHz step : 9kHz step AM FREQUENCY COVERAGE ADJUSTMENT Adjust partsFrequency display Reading on digtal voltmeter
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