sony_wm-fx193,195_ver-1.2_sm.pdf
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1、Ver 1.2 2001.01 With SUPPLEMENT 1 (9-927-646-81) With SUPPLEMENT 2 (9-927-646-82) MICROFILM WM-FX193/FX195 RADIO CASSETTE PLAYER SPECIFICATIONS US Model WM-FX193 Canadian Model AEP Model E Model Chinese Model WM-FX193/FX195 Model Name Using Similar MechanismNEW Tape Transport Mechanism TypeMF-WMFX19
2、5-114 Photo : WM-FX195 Frequency range FM: 87.5 - 108 MHz (Italy, Saudi Arabia) 87.6 - 107.9 MHz (Other countries) AM: 526.5 - 1606.5 kHz (Italy, Saudi Arabia) 531 - 1602 kHz (Other countries) Power requirement 3 V DC batteries R6 (AA) x 2 Dimensions 89.1 x 117.7 x 35.5 mm (w/h/d) incl. projecting p
3、arts and controls Mass Approx. 140 g/Approx. 220 g incl. batteries and a cassette Supplied accessories Stereo headphones or Stereo earphones (1)/Belt clip (1) Design and specifications are subject to change without notice. Battery life (approximate hours) (EIAJ*) Sony alkaline LR6 (SG)Sony R6P (SR)
4、playback257.5 radio5518 * Measured value by the standard of EIAJ (Electronic Industries Association of Japan). (Using a Sony HF series cassette tape) Note The battery life may shorten depending on the operation of the unit. SERVICE MANUAL 2 Specifications . 1 1.GENERAL Location and Function of Contr
5、ols . 2 2.DISASSEMBLY 2-1. Cabinet (Rear) Sub ASSY . 3 2-2. Main Board . 3 2-3. Mechanism Deck . 4 2-4. Belt, Capstan/Reel Motor (M901) . 4 2-5. Holder Sub ASSY, Cassette . 5 3.ADJUSTMENTS 3-1. Mechanical Adjustments. 6 3-2. Electrical Adjustments . 6 4.DIAGRAMS 4-1. Block Diagram. 9 4-2. Printed Wi
6、ring Boards .11 4-3. Schematic Diagram. 13 5.EXPLODED VIEWS 5-1. Cabinet Section. 17 5-2. Mechanism Section -1 . 19 5-3. Mechanism Section -2 . 20 6.ELECTRICAL PARTS LIST. 21 Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270C during repairing. Do not touch the so
7、ldering 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 b
8、y heat. TABLE OF CONTENTS SECTION 1 GENERAL nPLAY MEGA BASS/ OFF (FX195 only) M m FM/AM/TAPE (RADIO OFF) VOLUME TUNING FM MODE i AVLS NORM/ LIMIT BATT x LOCATION AND FUNCTION OF CONTROLS This section is extracted from instruction manual. 3 SECTION 2 DISASSEMBLY Note : Follow the disassembly procedur
9、e in the numerical order given. 2-1. CABINET (REAR) SUB ASSY 2-2. MAIN BOARD z The equipment can be removed using the following procedure. Main boardCabinet (rear) sub ASSY Holder sub ASSY, Cassette Mechanism deckBelt, Capstan/reel moter (M901)Set 1 Screws B1.7x9 3 Claws 4 2 6 Claws Holder sub ASSY,
10、 Cassette Cabinet (front) Cabinet (rear) sub ASSY 3 Claws 3 Claws 5 Claw 4 Claws 4 Claw 5 Claw 5 Claw 1 Screw WH1.4 3 Claws 2 Remove solder 4 Head flexible board Red White Orange Black Cabinet (front) Main board 4 2-3. MECHANISM DECK 2-4. BELT, CAPSTAN/REEL MOTOR (M901) 2 Mechanism deck 1 Insert the
11、 precision screwdriver (1.4 mm flat-blabe) in to the slit and release two claws. Cabinet (front) Mechanism deck 2 Screws (M1.4) 3 Capstan/reel motor (M901) 1 Belt 5 3 Move it away from projection 1 5 Holder sub ASSY, Cassette Holder sub ASSY, Cassette Holder sub ASSY, Cassette Cabinet (front) Cabine
12、t (front) Cabinet (front) 2 Move it away from projection 4 Spring (torsion) Holder sub ASSY, Cassette Cabinet (front) 5 4 1 3 2 Spring (torsion) Hinge Hinge Dial indicator 2-5. HOLDER SUB ASSY, CASSETTE z CAUTIONS DURING ASSEMBLY 1 Insert the dial indicator to the square hole of the cabinet (front)
13、and align to the pointer. 2 Insert the spring (torsion) in to the L shape slot as shown in the figure. 3, 4 Insert the hinge of the “Holder sub ASSY, Cassette”. 5 Close the “Holder sub ASSY, Cassette” then press in. 6 3-1. MECHANICAL ADJUSTMENTS PRECAUTION 1. Clean the following parts with a denatur
14、ed-alcohol-moistened swab : playback headpinch roller capstanrubber belt 2. Demagnetize the playback head with a head demagnetizer. 3. Do not use a magnetized screwdriver for the adjustments. 4. These measurement and adjustment should be performed with the rated power supply voltage (2.5 V) unless o
15、therwise noted. Torque Measurement ModeTorque MeterMeter Reading FWD 20 30 g cm CQ-102C (0.28 0.41 oz inch) FWD0.4 2 g cm back tension(0.006 0.027 oz inch) FF, REWCQ-201B more than 40 g cm (more than 0.56 oz inch) SECTION 3 ADJUSTMENTS 3-2. ELECTRICAL ADJUSTMENTS PRECAUTION Supplied voltage : 2.5V.
16、Switch and control position MEGA BASS switch : OFF (FX195) VOLUME control : maximum AVLS switch : NORM Test Tape TypeSignalUsed for WS-48A3kHz, 0dBTape Speed Adjustment Tape Speed Adjustment Procedure : 1. Playback WS-48A (tape center part) and adjust RV601 so that the frequency counter reading beco
17、mes 3,000Hz. Standard value : 2,9853,015Hz 2. Playback WS-48A (tape top and end). Check that frequency counter reading is within 1.5% of the read- ing of step 1. *1 FX193E, Chines, Saudi Arabia, 16 FX195 E, Chines, Saudi Arabia, AEP, French, Italian, CEV 32 FX193US, Canadian, AEP, French, Italian, C
18、EV FX195Canadian Abbreviation CEV : Ukraine, Hungary, Czech Adjustment Location : set test tape WS-48A (3kHz, 0dB) frequency counter phones jack (J302) *1 MAIN BOARD (Conductor side) RV601 : Tape Speed Adjustment 7 TUNER SECTION AM Section BAND : AM FM Section BAND : FM *1 FX193E, Chines, Saudi Arab
19、ia, 16 FX195 E, Chines, Saudi Arabia, AEP, French, Italian, CEV 32 FX193US, Canadian, AEP, French, Italian, CEV FX195Canadian Abbreviation CND:Canadian E5, E6 :South America CEV:Ukraine, Hungary, Czech AM RF signal generator 30% amplitude modulation by 400Hz signal. Output level : as low as possible
20、 Put the lead-wire antenna close to the set. set *1 phones jack (J302) level meter : US, Canadian, E5, E6 model : Italian, Saudi Arabia model AM IF ADJUSTMENT Adjust for a maximum reading on level meter. T1455kHz AM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L4505kHz5
21、16.5kHz CT41,690kHz1,631.5kHz AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L1620kHz CT11,400kHz FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L386MHz87.35MHz CT3109.5MHz108.25MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter
22、. L286MHz87.35MHz CT2109.5MHz108.25MHz C12 TP339 TP338 FB101 FB301 JR5 JR2 JR3 FB201 JR4 JR1 TP1 TP9 TP8 S1 L4 T1 CP1 BATT -1-2 EXCEPT US, CND, E5, E6 MODEL US, CND, E5, E6 MODEL US, CN FM RF signal generator 22.5kHz frequency deviation by 400Hz signal. Output level : as low as possible TP1 0.01F MA
23、IN BOARD (Conductor side) Adjustment Location : Main board (See page 8) 0 dB = 1V Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. 8 MAIN BOARD (Conductor side) MAIN BOARD (Component side) CT
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- sony_wm fx193 195 _ver 1.2 _sm