sony_wm-fx193,195_ver-1.2_sm.pdf
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-WMFX195-114 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 parts 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) 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 Controls . 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 Wiring 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 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 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 procedure 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, 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 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) Cabinet (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) 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 denatured-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 otherwise 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. 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 becomes 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, CEV 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 Arabia, 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 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. L4505kHz516.5kHz 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. 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 MAIN 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) CT4 : AM Frequency Coverage Adjustment CT3 : FM Frequency Coverage Adjustment L3: FM Frequency Coverage Adjustment L4 : AM Frequency Coverage Adjustment T1 : AM IF Adjustment CT1 : AM Tracking Adjustment CT2 : FM Tracking Adjustment L1 : AM Tracking Adjustment L2 : FM Tracking Adjustment Adjustment Location : 9 10 WM-FX193/FX195 4-1. BLOCK DIAGRAM Signal path. F: FM f: AM E: PB SECTION 4 DIAGRAMS Abbreviation CND: Canadian EA: Saudi Arabia CH: Chinese E: Indication of country of origin E9: No Indication of country of origin CEV: Ukrine, Hungary, Czech E5, E6 : South America FR: French 11 12 WM-FX193/FX195 4-2. PRINTED WIRING BOARDS D120G-4 IC1E-4 IC301E-8 Q1E-6 Q2F-4 Q301E-6 Q302D-6 Ref. No.Location z Semiconductor Location Note: X : parts extracted from the component side. f: internal component. b : Pattern of the rear side. Abbreviation CND: Canadian EA: Saudi Arabia CH: Chinese E: Indication of country of origin E9: No Indication of country of origin CEV: Ukraine, Hungary, Czech E5, E6 : South America 02 234567891011 A 1 B C D E F G H CV1 CV2 CT3 CV4 CT4 CT1 CT2 CV3 C40 R609 Q1 R5 R302 JR365 JR216 JR362 C20 JR346 R22 JR341 JR332 R3 R4 R109 JR306 RV601 C325 R209 JR345 TP334 JR218 JR337 R21 C313 C310 R610 JR308 JR217 C311 JR307 C303 JR312 JR363 C301 TP217 C15 TP214 Q2 JR351 C12 TP339 JR364 JR344 TP338 JR331 C306 JR368 JR343 TP341 C23 C207 C201 C101 R106 JR325 C107 R206 R1 Q301 R103 FB101 R204 JR301 R203 C105 C103 JR342 JR336 JR324 JR328 C203 JR310 JR321 JR327 JR347 JR326 R104 JR330 C205 R601 R602 TP330 C603 C605 C604 C330 C602 R110 C106 C206 R108 C334 FB301 R308 C308 C302 TP647 TP336 R603 R607 C304 JR215 TP231 JR323 R201 R101 C208 JR339 JR340 L302 R107 C609 JR366 C24 JR361 R207 JR348 JR349 JR350 JR338 C108 JR309 JR311 C309 C307 IC301 C9 JR329 R2 JR372 R320 JR5 C28 C3 FX193:US,CND TP320 R9 C6 C7 C8 JR370 C4 C13 R6 C21 C314 C18 C19 JR2 IC1 C608 L5 JR3 FB201 JR213 C10 JR214 C2 R307 C22 C16 JR334 JR335 C5 JR4 JR401 C14 JR212 JR367 JR1 D120 R8 JR211 TP1 TP222 JR302 JR371 JR369 TP223 JR303 C315 TP3 JR305 C26 JR201 TP11 TP10 TP4 TP5 TP12 TP209 TP211 Q302 R7 R10 R321 JR304 TP232 TP635 TP634 TP230 TP319 TP636 TP233 TP229 TP315 TP648 TP207 TP205 TP227 TP226 TP228 TP212 TP321 TP210 R121 TP337 TP316 TP317 TP213 JR333 C331 TP224 TP642 TP331TP332 TP225 TP221 TP7 TP9 TP8 TP335 BT2 TP333 TP643 L301 JR322 R210 R208 JR402 C606 R120 C329 C11 TP13 TP6 TP2 C1 TP641 TP639 TP640 C607 S301 RV301 C17 S305 C333 C204 C104 C305 S1 S1 L2 CF1 X2 L4 CF2 CV1-4 L3 T1 CP1 L1 S304 J301 J302 S302 BATT() Vref L R G COMWVU AM FERRITE ROD ANTENNA BATT(+) AVLS NORM LIMIT -1-2 ? i MAIN BOARD FM MODE LOCAL DX MONO ST TUNING VOLUME 151012 13152024 -2 -1 FMAM TAPE (RADIO OFF) BATT (POWER) L-CH R-CH 1 2 3 4 HP901 PLAYBACK HEAD 1 5 10 12 13152024 25 30 35 36 37404548 MEGA BASSOFF WM-FX195 WM-FX193 11 (11) 1-675-134- DC IN 3V DRY BATTERY SIZE AA (IEC DESIGNATION R6) 2PCS, 3V COM W V U M901 CAPSTAN/REEL MOTOR BE C BE C BE C BE C TH601 4 321 EXCEPT US, CND, E5, E6 MODEL EXCEPT US, CND, E5, E6 MODEL US, CND, E5, E6 MODEL US, CND, E5, E6 MODEL US, CND, E5, E6 MODEL EXCEPT E, E9, CH, EA MODEL E, E9, CH, EA MODEL 13 15 14 WM-FX193/FX195 4-3. SCHEMATIC DIAGRAM Note: All capacitors are in F unless otherwise noted. pF: F 50 WV or less are not indicated except for electrolytics and tantalums. All resistors are in and 1/4 W or less unless otherwise specified. f: internal component. U : B+ Line. Power voltage is dc 3V and fed with regulated dc power supply from external power voltage jack (J301). no mark : FM () : AM : TAPE PLAY Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal produc- tion tolerances. Signal path. F: FM E: PB Abbreviation CND: Canadian EA: Saudi Arabia CH: Chinese E: Indication of country of origin E9: No Indication of country of origin CEV: Ukraine, Hungary, Czech E5, E6 : South America FR: French 16 18 17 z IC Block Diagrams. IC301 LB8115W-NA-TLM IC1 TA2111F-(EL) 1 2 36 35 34 33 32 31 30 29 28 27 26 25 131415 16 1718 1920 21 2223 24 48 47 46 45 44 43424140393837 COM RI VREF POWER OUT (COM) POWER OUT (R) VCC POWER MUTE POWER IN (L) POWER IN (R) MIX OUT (L) MIX OUT (R) LP.2 H.P IN (R) H.P IN (L) DET OUT MVREF IN+ VSP MIX IN (R) MIX IN (L) LOW BOOST SW M-GND R.REF SYSTEM POWER OUT (L) POWER GND MVCC DR WOUT MP-GND VOUT UOUT FC OUT OSC UB VB WB 3 4 5 6 7 8 9 10 11 12 PRE NF (L) PRE OUT (R) PRE NF (R) PRE FWD IN (R) PRE REV IN (R) PRE REV IN (L) PRE FWD IN (L) S/S PRE GND PRE OUT (L) BIAS R.F REF SYS CONT DET VREF SPEED LOW BOOST PRE DRIVER OPERATION LOGIC OSC PLUSE DET REF VOLTAGE REF VOLTAGE FOR SPEED CONTROL CURRENT DET OPERATION DET FWD/ REV FREQ CARC. + 1234 21 56 22182324 789 FM RF IN RF GND AM LOW CUT MIX OUT AGC VCC AM IF IN FM IF IN GND TUN LED ST LED QUAD R-OUT L-OUT LPF1 LPF2 MPX IN DET OUT AFC AM OSC FM OSC RF VCC FM RF OUT AM RF IN AF BUFFER AF AMP VCO DIVIDE DECODE FM MIX AM MIX AM DET AM IF FM RF 20 FM OSC AM OSC AGC 10 TUN LED FM DET LEVEL DET ST/MONO FM/AM FM MUTE FM IF 1112 ST LED 131415161719 SECTION 5 EXPLODED VIEWS NOTE : -XX, -X mean standardized parts, so they may have some difference from the original one. Color indication of Appearance Parts Example : KNOB, BALANCE (WHITE) (RED) Parts color Cabinets color Items marked “ * ”are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference number in the exploded views are not supplied. Hardware (# mark) list and accessories and packing materials are given in the last of this parts list. 5-1. CABINET SECTION Abbreviation CND: Canadian EA: Saudi Arabia CH: Chinese E: Indication of country of origin E9: No Indication of country of origin CEV: Ukraine, Hungary, Czech E5, E6 : South America FR: French L1 1 2 3 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 MF-WMFX195-114 FX195 3 4 Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark 1X-3378-185-1 CABINET (REAR) SUB ASSY (EXCEPT E, E9, EA,CH) 1X-3378-186-1 CABINET (REAR) SUB ASSY (E, E9, EA,CH) 23-019-503-11 SHEET(CABINET REAR) 33-318-203-92 SCREW(B1.7), TAPPING 43-022-581-01 PLATE, LIGHT GUIDE 53-039-265-01 LID,BATTERY CASE 6A-3021-289-A MAINBOARD, COMPLETE (FX195:E,E9,CH) 6A-3021-290-A MAINBOARD, COMPLETE (FX193:E,E9,CH) 6A-3021-291-A MAINBOARD, COMPLETE (FX193:EA) 6A-3021-292-A MAINBOARD, COMPLETE (FX193:E5,E6) 6A-3021-293-A MAINBOARD, COMPLETE (FX193:US,CND) 6A-3021-294-A MAINBOARD, COMPLETE (FX193:AEP,CEV) 6A-3021-295-A MAINBOARD, COMPLETE (FX193:FR) 6A-3021-296-A MAINBOARD, COMPLETE (FX193:Italian) 6A-3021-297-A MAINBOARD, COMPLETE (FX195:EA) 6A-3021-298-A MAINBOARD, COMPLETE (FX195:CND) 6A-3021-299-A MAINBOARD, COMPLETE (FX195:AEP,CEV) 6A-3021-300-A MAINBOARD, COMPLETE (FX195:FR) 6A-3021-301-A MAINBOARD, COMPLETE (FX195:Italian) 6A-3021-302-A MAINBOARD, COMPLETE (FX195:E5,E6) 73-029-332-01 TERMINAL (-), BATTERY 89-910-999-31 SCREW(M1.7X1.5) 93-039-262-01 KNOB(TUNING) 103-039-266-01 TERMINAL (+), BATTERY 113-921-955-01 SCREW (M1.4), TOOTH (WH) 123-019-859-01 BUTTON (STOP) 133-019-860-01 BUTTON (FF) 143-019-858-01 BUTTON (PLAY) 153-019-861-01 BUTTON (REW) 163-375-114-31 SCREW 173-039-25
