sony_wm-ex9.pdf
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1、 1 Model Name Using Similar MechanismNEW Tape Transport Mechanism TypeMF-WMEX9-162 SERVICE MANUALUS Model AEP Model UK Model E Model Tourist Model WM-EX9 CASSETTE PLAYER SystemCompact cassette stereo Frequency response (Dolby NR off) Playback: 30 - 18,000 Hz OutputHeadphones 2 jack Load impedance 8
2、- 300 ohms Maximum output level4 mW + 4 mW (32 ) Power requirementsDC 1.5 V Nickel metal hydride rechargeable battery (supplied) One R6 (size AA) batteries (negative ground) Battery life (Approx. hours) Rechargeable NH-14WM40 fully charged Rechargeable NC-6WM18 fully charged Sony alkaline LR6 (WM)60
3、 Rechargeable NH-14WM100 Sony alkaline LR6 (WM) used together Rechargeable NC-6WM78 Sony alkaline LR6 (WM) used together Dimensions (w/h/d)Approx. 77.7 108 19.6 mm (3 1/8 4 3/8 25/32 in.) projecting parts and controls MassApprox. 140 g / Approx. 205 g (5.0 oz/ 7.3 oz) incl. rechargeable battery and
4、a cassette SPECIFICATIONS Dolby noise reduction manufactured under license from Dolby Labo- ratories Licensing Corporation. “DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation. MICROFILM Photo: Gold type Ver 1.1 1999. 01 Supplied accessoriesBattery charger BC
5、-7DC (1) (US model) Battery charger BC-7DY (1) (AEP, French model) Battery charger BC-7HT (1) (E, Tourist model) Battery charger BC-7S (1) (UK model) Battery charger BC-9HR (1) (Korea model) Rechargeable battery NH-14WM (1) (E, Tourist, Korea model) Rechargeable battery NC-6WM (1) (Except E, Tourist
6、, Korea model) Rechargeable battery case (1) Dry battery case (1) Stereo headphones with remote control MDR-ED132SP + RM-WME21L (1) Carrying pouch (1) AC plug adaptor (1) (E, Tourist model) Design and specifications are subject to change without notice. Ver 1.1 1999. 01 2 TABLE OF CONTENTS 1. SERVIC
7、ING NOTE 1-1. Service Mode . 3 1-2. Rotational System . 4 2. GENERAL Location of controls. 5 3. DISASSEMBLY 3-1. Cassette Lid Assy . 6 3-2. Case . 6 3-3. Ornament (Open) Block Assy . 7 3-4. SUB Board, Leaf Switch, MAIN Board . 7 3-5. Belt (F1), Motor (F1) (M701) . 8 4. MECHANICAL ADJUSTMENTS.9 5. EL
8、ECTRICAL ADJUSTMENTS .9 6. DIAGRAMS 6-1. IC Pin Description. 10 6-2. Block Diagram . 11 6-3. Printed Wiring Boards (Board suffix No. : -11).13 6-4. Printed Wiring Boards (Board suffix No. : -12).16 6-5. Schematic Diagram .19 7. EXPLODED VIEWS 7-1. Case Section. 24 7-2. Mechanism Deck Section. 25 8.
9、ELECTRICAL PARTS LIST.26 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
10、. 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. SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST A
11、RE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. ATTENTION AU COMPOSANT AYANT RAPPORT LA SCURIT! LES COMPOSANTS IDENTIFIS PAR UNE MARQUE ! SUR LES DIAGRAMMES SCHMATIQUES ET LA LISTE DES PICE
12、S SONT CRITIQUES POUR LA SCURIT DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PICES SONY DONT LES NUMROS SONT DONNS DANS CE MANUEL OU DANS LES SUPPLMENTS PUBLIS PAR SONY. 3 F side flywheel slider (NR) F side centerR side SECTION 1 SERVICING NOTE 1-1. SERVICE MODE Mode to allow the mecha
13、nical parts to operate with the audio board open. This set uses the photo reflector PH701 to detect the rotation of the idler gear (A) (S side). PH701 is on the main board and so removal of the main board does not allow the set to detect the rotation of the idler gear (A) (S side). This makes motor
14、control impossible which prevents normal operation. When repairing the set as energized with the main board removed, proceed as follows: 1. Setting 1) Remove the case (refer to the Disassembly) and open the main board. 2) Connect the motor and plunger to the main board with jumper wire. The extensio
15、n jig (1-769-143-11) (one set of ten wires) can be used for easy connection. 3) Short the TAPE IN switch land (BP701) with solder. Input a square (or sine) wave of 10 to 100 Hz (at 1.3 V) to both PH IN T land (TP60) and PH IN S land (TP61) with jumper wire. 4) Supply 1.3 V to the positive and negati
16、ve terminals of the battery with a stabilized power supply. 2. Preset state The set must be in this state before the PLAY, FF and REW modes can be entered. 1) Make sure that the slider (NR) is in the center position and that the N/R switch (S701) is in the center position. Make sure that the reel ge
17、ar does not rotate by rotating the flywheel on the F side clockwise. If improper, place the set in the preset state according to the following instructions: 2) Repeat the step below some times to ensure the above conditions. * Pull away the trigger level from the plunger with twezers or other means.
18、 Then rotate the flywheel on the F side clockwise. 3) Turn the stabilized power supply OFF once and then ON. 3. FF/REW mode 1) Check for “2. Preset state” and push the FF switch and the REW switch. 2) Move the N/R switch (S701) to the movement of the slider to enter the FF/REW mode. 4. PLAY mode 1)
19、Check for “2. Preset state.” 2) Push the “ ” switch on the remote commander to move the lever (SW) toward the R side. With timing to this, move the N/R switch (S701) to enter the PLAY (R side) mode. Note 1: If failed, retry from the preset state. Note 2: The “ ”, p, FF and REW switches on the remote
20、 commander should be used whenever possible. main board (side A) main board (side B) mechanism deck BP701 PH IN T PH IN S S701 IC601IC701 F side center R side 4 1-2. ROTATIONAL SYSTEM 1. Rotational System of PLAY Mode2. Rotational System of FF Mode 3. Rotational System of REW Mode motor pulley gear
21、(FR) gear (reel) (S side) reverse pulley insert flywheel (R) insert flywheel (N) idler gear (A) (S side) gear (Y) clutch assy (F) motor pulley reverse pulley insert flywheel (R) insert flywheel (N) gear (reel) (T side) gear (reel) (S side) idler gear (A) (T side) idler gear (A) (S side) idler gear (
22、B) gear (Y) gear (NR) FWD REV clutch assy (F) motor pulley gear (FR) reverse pulley insert flywheel (R) insert flywheel (N) gear (reel) (T side) idler gear (A) (T side) gear (Y) clutch assy (F) 5 SECTION 2 GENERAL Main unit Location of controls Stereo headphones with remote control L (left)R (right)
23、 1 VOL (volume) knob 2 2 REMOTE (headphone remote control) jack 3 Operation button 4 OPEN/HOLD/OPERATION switch 5 Dry battery case contact 6 Rechargeable battery compartment 7 HOLD switch 8 Liquid crystal display window 9 Stereo mini-plug ! MENU button ! Jog lever ! Clip 6 SECTION 3 DISASSEMBLY The
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