sony_wm-gx612-gx614.pdf
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1、 1 AEP Model UK Model E Model Australian Model SPECIFICATIONS SERVICE MANUAL WM-GX612/GX614 Model Name Using Similar MechanismNEW Tape Transport Mechanism TypeMF-WMGX614-112 RADIO CASSETTE CODER Photo : WM-GX614 Ver 1.1 2002. 01 Sony Corporation Personal Audio Company Published by Sony Engineering C
2、orporation 9-960-414-12 2002A1600-1 2002.1 2 Section Title Page SECTION 1. SERVICE NOTE.3 SECTION 2. GENERAL .5 SECTION 3. DISASSEMBLY 3-1.Cassette Lid ASSY and Case ASSY . 7 3-2.Bracket ASSY and Cassette Holder ASSY . 7 3-3.Tuner Board . 8 3-4.Main Board. 8 SECTION 4. MECHANICAL ADJUSTMENT.9 SECTIO
3、N 5. ELECTRICAL ADJUSTMENT .9 SECTION 6. DIAGRAMS 6-1.IC Pin Functions IC501 BA3641FV REC AMP . 11 IC701 MSM63120B System Control . 11 IC702 SMC62L3A LCD Drive .13 6-2.Printed Wiring Board Tuner Section . 14 6-3.Schematic Diagram Tuner Section . 17 6-4.Schematic Diagram Main Section . 21 6-5.Printed
4、 Wiring Board Main Section . 25 6-6.IC Block Diagrams . 29 SECTION 7. EXPLODED VIEWS 7-1.Case Section . 33 7-2.Main Board Section . 34 7-3.Mechanism Section (MF-WMGX614-112). 35 SECTION 8. ELECTRICAL PARTS LIST.36 TABLE OF CONTENTS SAFETY-RELATED COMPONENT WARNING ! COMPONENTS IDENTIFIED BY MARK ! O
5、R DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE 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. Notes on chip component replacement Never reuse a disconnected chi
6、p component. Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing Keep the temperature of the soldering iron around 270 C during repairing. Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). Be careful n
7、ot to apply force on the conductor when solder- ing or unsoldering. 3 MAIN Board Side A Side B Lever (FR SW) SECTION 1 SERVICE NOTE Service Mode Mode which enables the mechanism to be operated with the MAIN board opened. Photo sensor PH701 mounted on the MAIN board is used to detect rotaion of the r
8、eels. Because it is mounted on the MAIN board, when the MAIN board is being removed, rotation of the reels cannot be detected and the auto-off/tape-end detector circuit does not operate correctly. F/R switch (S701) is also mounted on the MAIN board. Therefore, without the MAIN board, the head cannno
9、t be placed in playback position, and power cannot be supplied to the circuitry of the playback system. When the MAIN board is being removed, follow the procedures below, in order to check operation of the mechanisms of the tape deck and to check voltages supplied to each circuit. 1. Setting 1) Refe
10、r to “Disassembly” and remove the cabinet and open the MAIN board. 2) Connect the MAIN board to the motor and plunger using a jumper wire. Use “Extension tool (1-769-143-11) (one set 10 tools)” to make connection simple. 3) Short-circuit the service mode land (BP2) by soldering. 4) Apply a square wa
11、ve signal to TP20. (See the figure on the right.) 5) Supply 1.5V to the battery terminals (+) and () using a DC power supply. 2. Preset State This state must be set to set the PLAY, FF, and REW modes. 1) Check that the lever (FR SW) is at the center and F/R switch (S701) is at the center. If not, se
12、t the preset state as follows. 2) Move the F/R switch (S701) according to the side faced by the lever (FR SW). 3) Turn OFF the DC power supply switch once and then turn it ON again so that the lever (FR SW) can be moved. Move the F/R switch (S701) according to this timing and set to the center. 3. F
13、F REW Mode 1) Set the preset state and press the FF switch and REW switch. 4. PLAY Mode 1) Set the preset state. 2) Press the switch. The lever (FR SW) will move to the F side once and then to the R side. Move the F/R switch (S701) according to this timing to set the PLAY (R side) mode. Press the sw
14、itch another time and move the F/R switch (S701) according to the movement of the lever (FR SW) to set the PLAY (F side) mode. Note 1 : If the above cannot be performed, start again from preset. Note 2 : Use the remote control , &, FF, and REW switches as much as possible. If the remote control is n
15、ot available, do not touch S703 to S706 with the hand and use something with a round tip to press them. F side R side Center Lever (FR SW) Center F side R side S701 F/R SWITCH (FWD n STOP n REV) PH701 S702 (HOLDER SWITCH) S714 (C HOLD) S707 (RADIO ON BAND) S711 (TUNING +) S712 (TUNING ) S713 (ENTER)
16、 Connect to plunger S703 (RADIO OFF p) S704 (REPEAT ) Battery Terminal () S709 (SET) S710 (MENU) S706 (AMS REW PRESET ) Service mode land S705 (AMS FF PRESET +) Connect to motor Battery Terminal (+) TP20 AF OSCILLATOR SQUARE WAVE (SINE WAVE) 10Hz 3.5 dB (1.5V) 4 Rotation system during REW. Rotation
17、system Rotation system during PLAY. Capstan wheel (N) assembly Clutch assembly Gear (K) Gear (A) Gear (NR) Pulley (REVERSE) Gear (B) Reel table (T side) Clutch assembly Motor pully Gear (C) Reel table (S side) Gear (A) Capstan wheel (R) assembly Gear (K) Gear (NR) (REV : Left side/ FWD : Right side)
18、 Rotation system during FF. Capstan wheel (N) assembly Pulley (REVERSE) Capstan wheel (N) assembly Reel table (T side) Gear (B) Gear (NR) (REW : Left side) Motor pully Clutch assembly Gear (FR) (FF : Right side) Reel table (S side) Gear (K) Gear (NR) Capstan wheel (R) assembly Pulley (REVERSE) Motor
19、 pully Gear (C) Capstan wheel (R) assembly 5 SECTION 2 GENERAL 1Display Window 2PRESET +/AMS FF button 3PRESET /AMS REW button 4MENU button 5BATT indicater 6SET button 7p/RADIO OFF button 8ENTER button 92/REMOTE jack ILLUST LATION : WM-GX614 MODEL !2 FUNCTION OF CONTROL 1 0HOLD knob !VOLUME knob !RA
20、DIO ON/BAND button !TUNIG + button !TUNIG button !/REPEAT button !REC switch !ISS switch !MIC jack ! 0 ! 98! 7654!3 6 This section is extracted from instruction manual. 7 Note : Follow the disassembly procedure in the numerical order given. 3-1. CASSETTE LID ASSY AND CASE ASSY 3-2. BRACKET ASSY AND
21、CASSETTE HOLDER ASSY 1Screw (M1.4) 2Bracket ASSY 4Lock lever (B) 5Screw (M1.4) 3Screw (M1.4) 6Cassette holder ASSY SECTION 3 DISASSEMBLY 1Two screws (M1.4x3) 2Screw (M1.4x3) 4Case ASSY 5TU flexible board 6Two screws (M1.4x2) 7Cassette lid ASSY 8Reel ornament ASSY 9Mechanism Block 3Two screws (M1.4x2
22、) Note : Adjust the knob and the switch position when installing. 8 3-3. TUNER BOARD 3-4. MAIN BOARD 1 Three tapping screws 2 TU cover 3 TUNER board 4 Case ASSY Note for installation 2Remove the solder of the plunger solenoid. 3Flexible board (Head) 4Remove the solder of the ATS flexible board. 5Tap
23、ping screw 6Tapping screw 7Screw (M1.4x2) 8Remove the Main board direction of arrow. Lever (FR switch) Note :Confirm if the switch lever installs it self in the groove of a lever (FR switch) for assembling. 1Remove the solder of the motor. S701 9 SECTION 4 MECHANICAL ADJUSTMENT Mode FWD Torque Meter
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