索尼SONY WM-FX522电路图.pdf

SERVICE MANUAL Ver 1.0 2003.01 9-874-226-01Sony Corporation 2003A0500-1Personal Audio Company C 2003.01Published by Sony Engineering Corporation RADIO CASSETTE PLAYER AEP Model SPECIFICATIONS WM-FX522 Model Name Using Similar MechanismWM-FX521 Tape Transport Mechanism TypeMT-WMEX505-162 Radio section Frequency range FM: 87.5 - 108 MHz AM: 531 - 1 602 kHz Tape section Frequency response Playback: 40 - 15 000 Hz Output Headphones (i) jack Load impedance 8 - 300 General Power requirements 1.5 V One R6 (size AA) battery Dimensions (w/h/d) Approx. 77.0 108.4 28.7 mm, excl. projecting parts and controls Mass Approx. 165 g (main unit only) Supplied accessories Stereo headphones/earphones with remote control or stereo headphones/earphones (1) Design and specifications are subject to change without notice. Battery life* (Approx. hours) Tape playback Radio reception Sony alkaline LR6 (SG)*3565 * Measured value by the standard of JEITA (Japan Electronics and Information Technology Industries Association). (Using a Sony HF series cassette tape) *When using a Sony LR6 (SG) “STAMINA” alkaline dry battery (produced in Japan). Note The battery life may be shorter depending on the operating condition, the surrounding temperature and battery type. ? ? ? ? ? ? ? ? ? ? 2 WM-FX522 TABLE OF CONTENTS 1.SERVICING NOTES.3 2.GENERAL.5 3.DISASSEMBLY 3-1.Disassembly Flow .6 3-2.Cassette Lid Assy .6 3-3.Case Block Assy.7 3-4.Ornament Reel .7 3-5.Battery Holder.8 3-6.Belt (F2) .8 3-7.MAIN Board .9 3-8.Motor (Capstan/Reel) (M901) . 10 3-9.Holder (FS) Assy. 10 3-10. Pinch Lever (N) Assy, Pinch Lever (R) Assy . 11 3-11. Magnetic Head (Playback) (HP901) . 11 4.MECHANICAL ADJUSTMENTS. 12 5.ELECTRICAL ADJUSTMENTS. 12 6.DIAGRAMS 6-1.Block Diagram TUNER Section . 15 6-2.Block Diagram MAIN Section . 16 6-3.Note for Printed Wiring Board and Schematic Diagrams . 17 6-4.Schematic Diagram MAIN Board (1/2) . 18 6-5.Schematic Diagram MAIN Board (2/2) . 19 6-6.Printed Wiring Board . 20 6-7.IC Pin Function Description . 23 7.EXPLODED VIEWS 7-1.Case Section . 25 7-2.Bracket, MAIN Board Section . 26 7-3.Mechanism Deck Section (MT-WMEX505-162) . 27 8.ELECTRICAL PARTS LIST. 28 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. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C dur- ing 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. ? ? ? ? ? ? ? ? ? ? 3 WM-FX522 SECTION 1 SERVICING NOTES This set detects the rotation of the idler gear (A) (side S) using the PH701 (photo reflector). The PH701 is mounted on the MAIN board, therefore the idler gear (A) (side S) cannot be detected with the MAIN board removed. As a result, the motor (M901) cannot be controlled, causing malfunction. Further, the DIRECTION switch (S703) is also mounted on the MAIN board, and with the board removed, the mechanism posi- tion cannot be detected and the operation is not changed over. Therefor, when the voltage check is executed with the MAIN board removed, follow the procedure provided below. 1.Setting (1)Refer to “3. DISASSEMBLY”, and remove the MAIN board. (2)Connect the MAIN board to the motor (M901) and the plunger (PM901) using jumper wires. These can be connected easily with the use of the extension tool (Part No. 1-769- 143-11) (ten in one set). (3)Short the TAPE DETECT switch (S901-1) terminals and the ATS switch (S901-2) terminals. (4)Connect the AF oscillator to the TP40 (PHOTO IN) and the TP2 (GND). (5)Supply 1.3 V to the battery terminals using the regulated power supply. 2.Preset state To set the PLAY, FF, REW modes, the preset state must be set. (1)Check that the slider (NRA) and the DIRECTION switch (S1) are set to the center position. If not, set the preset state as follow. (2)Move the DIRECTION switch (S703) to the side, which the slider (NRA) is facing. (3)The slider (NRA) will move when the regulated power sup- ply switch is set to OFF once and then set to ON. Move the DIRECTION switch (S703) according to this timing and set to the center position. 3.FF, REW modes (1)Check that the preset state is set. (2)Input the square wave or sine wave to the TP40 (PHOTO IN) and the TP2 (GND). (3)Press the RADIO OFF button (S709) to set the STOP mode. (4)Press the FF AMS button (S707) or the REW AMS but- ton (S708). 4.PLAY mode (1)Check that the preset state is set. (2)Input the square wave or sine wave to the TP40 (PHOTO IN) and the TP2 (GND). (3)Press the RADIO OFF button (S709) to set the STOP mode. (4)Press the REPEAT button (S710) will move the slider (NRA) once towards the side R and then to the side F. Move the DIRECTION switch (S703) according to this timing will set the PLAY mode (side F). Press the REPEAT button (S710) another time and move the DIRECTION switch (S703) according to the movement of the slider (NRA) will set the PLAY (R mode). Note 1: If the above fails, perform from preset again. Note 2: Use the REPEAT (S710), RADIO OFF (S709), FF AMS (S707), and REW AMS (S708) buttons on the remote control- ler as much as possible. If no remote controller, do not touch the buttons with your hands, but using a stick with a round tip. Note 3: When using headphones, the timing for move the DIRECTION switch (S703) can be determined from the beep sound. + PH701 TP40 (PHOTO IN) TP2 (GND) TAPE DETECT (S901-1) ATS (S901-2) REPEAT (S710) RADIO OFF (S709) connect to the plunger (PM901) connect to the motor (M901) FF AMS (S707) battery terminal # battery terminal 3 square wave (sine wave) 10 Hz, 3.5 dB AF oscillator S703 DIRECTION FWD R STOP r REV REW AMS (S708) MAIN BOARD x Y Y Yx x ? ? ? ? ? ? ? ? ? ? 4 WM-FX522 SLIDER (NRA)Rotation system Rotation system during PLAY Rotation system during FFRotation system during REW slider (NRA) side Fside R center insert flywheel (N) insert flywheel (R) reverse pulley clutch assy (F) gear (Y) cam gear gear (REEL) (T side) motor pulley idler (A) gear (T side) gear (FR) (FF: left side) insert flywheel (N)insert flywheel (R) reverse pulley clutch assy (F) gear (Y) cam gear gear (REEL) (T side) motor pulley idler (A) gear (T side) gear (NR) (FWD: left side REW: right side) idler (B) gear idler (A) gear (S side) gear (REEL) (S side) insert flywheel (N) insert flywheel (R) reverse pulley clutch assy (F) gear (Y) cam gear motor pulley gear (FR) (REW: right side) idler (A) gear (S side) gear (REEL) (S side) ? ? ? ? ? ? ? ? ? ? 5 WM-FX522 SECTION 2 GENERAL This section is extracted from instruction manual. C D x VOL VOL* HOLD HOLD YREPEAT* FF (AMS) REW (AMS) Yx* REW Plug in firmly. Branchez fermement. Fest einstecken. i FF MENU SET FWD (forward) side Face FWD (avant) Vorderseite (FWD) REV (reverse) side Face REV (inverse) Rckseite (REV) A PRESET RADIO OFF SET MENU TUNE/PRESET + RADIO ON/ BANDOFF PRESET + TUNE/PRESET ENTER BAND RADIO ON B OPEN * There is a tactile dot beside VOL on the main unit to show the direction to turn up the volume. *The button has a tactile dot. *Un point tactile ct de VOL sur lappareil principal indique le sens de rotation du bouton de volume. * Le bouton comporte un point en relief. *Am Hauptgert befindet sich ein fhlbarer Punkt neben VOL. Dieser gibt die Richtung an, in der man die Lautstrke erhht. * An dieser Taste befindet sich ein fhlbarer Punkt. Model supplied with remote control Modle fourni avec tlcommande Modelle mit Fernbedienung Model supplied with headphones/earphones only Modle fourni uniquement avec un casque/des couteurs Modelle mit Kopfhrer/Ohrhrer RADIO OFF SET MENU TUNE/PRESET + TUNE/PRESET ENTER BAND RADIO ON Model supplied with remote control Modle fourni avec tlcommande Modelle mit Fernbedienung Model supplied with headphones/earphones only Modle fourni uniquement avec un casque/des couteurs Modelle mit Kopfhrer/Ohrhrer F SET MENU HOLD HOLD E PRESET RADIO OFF SET MENU TUNE/PRESET + RADIO ON/ BANDOFF PRESET + TUNE/PRESET ENTER BAND RADIO ON RADIO OFF SET MENU TUNE/PRESET + TUNE/PRESET ENTER BAND RADIO ON Model supplied with remote control Modle fourni avec tlcommande Modelle mit Fernbedienung Model supplied with headphones/earphones only Modle fourni uniquement avec un casque/ des couteurs Modelle mit Kopfhrer/Ohrhrer SET MENU HOLD Model supplied with remote control Modle fourni avec tlcommande Modelle mit Fernbedienung Model supplied with headphones/ earphones only Modle fourni uniquement avec un casque/ des couteurs Modelle mit Kopfhrer/Ohrhrer ? ? ? ? ? ? ? ? ? ? WM-FX522 6 This set can be disassembled in the order shown below. 3-1.DISASSEMBLY FLOW SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 3-2.CASSETTE LID ASSY 3-4. ORNAMENT REEL (Page 7) 3-2. CASSETTE LID ASSY (Page 6) 3-3. CASE BLOCK ASSY (Page 7) 3-9.HOLDER (FS) ASSY (Page 10) 3-10. PINCH LEVER (N) ASSY, PINCH LEVER (R) ASSY (Page 11) 3-11. MAGNETIC HEAD (PLAYBACK) (HP901) (Page 11) 3-8.MOTOR (CAPSTAN/REEL) (M901) (Page 10) 3-5. BATTERY HOLDER (Page 8) 3-7. MAIN BOARD (Page 9) 3-6. BELT (F2) (Page 8) Note 1: The process described in can be performed in any order. Note 2: Without completing the process described in , the next process can not be performed. SET 4cassette lid assy 1Open the cassette lid assy. 3boss 2two screws (M1.4) 2screw (M1.4) ? ? ? ? ? ? ? ? ? ? WM-FX522 7 3-3.CASE BLOCK ASSY 3-4.ORNAMENT REEL 1three screws (M1.4) 1two screws (M1.4) 2Remove the case block assy to direction of the arrow. knob (hold) S701 On installation case block assy, adjust the S701 and knob (hold). 1two claws 2ornament reel 1claw ? ? ? ? ? ? ? ? ? ? WM-FX522 8 3-5.BATTERY HOLDER 3-6.BELT (F2) 2two screws 3battery holder 1Break the soldering of battery terminal (+). 1Break the soldering of battery terminal (). 1belt (F2) (See page 4) ? ? ? ? ? ? ? ? ? ? WM-FX522 9 3-7.MAIN BOARD NOTE FOR INSTALLATION MAIN BOARD 2screw (M1.4) flexible board 1Remove six solders of flexible board. 1Remove two solders of plunger solenoid. 1Remove four solders of motor. 1Remove four solders of leaf switch. 3main board slider (NRA) S703 main board On installation main board, adjust the S703 and slider (NRA). ? ? ? ? ? ? ? ? ? ? WM-FX522 10 3-8.MOTOR (CAPSTAN/REEL) (M901) 3-9.HOLDER (FS) ASSY 1two screws (M1.4) 2motor (capstan/reel) (M901) 1two screws (IB lock) 2boss 3lock lever (B) (/M) 7bracket (cassette) assy (/M) 5lock lever (S) (/M) 4screw (M1.4) 6boss 9Remove the holder (FS) assy to direction of the arrow. 8Remove six solders of flexible board. ? ? ? ? ? ? ? ? ? ? WM-FX522 11 3-10. PINCH LEVER (N) ASSY, PINCH LEVER (R) ASSY 1 claw 2 Remove the pinch lever (R) assy to direction of the arrow. 4 Remove the pinch lever (N) assy to direction of the arrow. 3 claw 3-11. MAGNETIC HEAD (PLAYBACK) (HP901) 1claw 2Remove the magnetic head (HP901) to direction of the arrow. ? ? ? ? ? ? ? ? ? ? 12 WM-FX522 SECTION 4 MECHANICAL ADJUSTMENTS SECTION 5 ELECTRICAL ADJUSTMENTS TAPE SPEED ADJUSTMENT Setting: Function: TAPE Procedure: 1.Playback WS-48A (tape center) in the FWD state. 2.Adjust RV601 so that the frequency counter reading becomes 3,000 Hz. Specification Values: 2,970 to 3,030 Hz 3.Check that deflection of the frequency counter reading between the beginning and the end of tape is within 1.5% (approx.45 Hz). 4.Playback WS-48A (tape center) in the REV state. Check that the frequency counter reading is within 2% (approx.60 Hz) of the reading of step 1. Adjustment Location: MAIN BOARD (See page 13) PRECAUTION 1.Specified voltage: 1.3 V (DC) 2.Setting MB: OFF AVLS: OFF BL SKIP: OFF MODE: s VOLUME: MAX HOLD: OFF TAPE DECK SECTION0 dB=0.775 V TEST TAPE TypeSignalUsed for WS-48A3 kHz, 0 dBTape Speed Adjustment + set Test tape WS-48A (3 kHz, 0 dB) frequency counter 16 i jack (J301) PRECAUTION 1.Clean the following parts with a denatured-alcohol-moistened swab: playback headpinch roller rubber beltscapstan 2.Demagnetize the playback head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head.) 3.The adjustments should be performed with the rated power supply voltage (1.3 V)