索尼SONY WM-GX100电路图.pdf
Ver 1.0 2000.10 WM-GX100 SERVICE MANUAL RADIO CASSETTE-CORDER SPECIFICATIONS E Model Chinese Model Frequency range FM: 65.0 - 107.9 MHz (Eastern Europe) 87.5 - 108 MHz (Italy and Saudi Arabia) 87.6 - 108 MHz (North, Central and South America) 87.6 - 107.9 MHz (Other countries) AM:526.5 - 1,606.5 kHz (Italy and Saudi Arabia) 530 - 1,710 kHz (North, Central and South America) 531 - 1,602 kHz (Other countries) Power requirement 3V DC batteries R6 (AA) x 2 External DC 3 V power sources Dimensions 88.8 x 118.6 x 38.0 mm (3 12 x 4 34 x 1 12 inches) (w/h/d) Mass Approx. 160 g (5.7 oz) Supplied accessories Stereo headphones or Stereo earphones (1), Belt clip (1), Stereo microphone (1) Design and specifications are subject to change without notice. Battery life (approximate hours) (EIAJ*) Sony alkaline LR6 (SG)*Sony R6P (SR) playback247 radio5016 mic recording113.5 radio recording102.5 * Measured value by the standard of EIAJ (Electronic Industries Association of Japan). (Using a Sony HF series cassette tape) * When using LR6 (SG) Sony “STAMINA” alkaline dry batteries (produced in Japan). Note The battery life may be shorter depending on the operating condition, the surrounding temperature and battery type. Model Name Using Mechanism TypeWM-SR1 Similar Mechanism Tape TransportMF-WMSR1-114 ? ? ? ? ? ? ? ? ? ? Specifications . 1 1.GENERAL Location and Function of Controls . 2 2.DISASSEMBLY 2-1. Cabinet (Rear). 3 2-2. Main Board . 4 2-3. Mechanism Deck . 4 2-4. Motor (M901), “Head, Magnetic” (HRP901) . 5 2-5. Holder Sub ASSY, Cassette . 5 2-6. Setting the Pointer . 6 3.ADJUSTMENTS 3-1. Mechanical Adjustments. 7 3-2. Electrical Adjustments . 7 4.DIAGRAMS 4-1. Block Diagram (1/2). 9 4-2. Block Diagram (2/2).11 4-3. Printed Wiring Boards . 13 4-4. Schematic Diagram (1/2). 15 4-5. Schematic Diagram (2/2). 17 5.EXPLODED VIEWS 5-1. Cabinet Section. 21 5-2. Mechanism Deck Section . 22 6.ELECTRICAL PARTS LIST. 23 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 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) z The equipment can be removed using the following procedure. L K J I B C D E F G H 2 Cabinet (rear) (A L : Claws) 1 Screws (B 1.7) A Align switches and knobs with arrow direction z CAUTIONS DURING CABINET (REAR) ASSEMBLY S310 S308 S2 S305 S307 Cabinet (Front) Main boardCabinet (rear) “Holder sub ASSY, Cassette” Mechanism deck (MF-WMSR1-114) Motor (M901), “Head, Magnetic” (HRP901)Set ? ? ? ? ? ? ? ? ? ? 4 2-3. MECHANISM DECK (MF-WMSR1-114) 2-2. MAIN BOARD Main board 3 Screw (M1.4) 2 Head flexible board (CN301) 1 Remove solder (4 places) (M901) 4 Claws 5 1 Claws Mechanism deck (MF-WMSR1-114) 2 ? ? ? ? ? ? ? ? ? ? 5 2-5. HOLDER SUB ASSY, CASSETTE 2-4. MOTOR (M901), “HEAD, MAGNETIC” (HRP901) 1 Belt Belt 3 Motor (M901) 2 Screws (M1.4) 4 “Head, Magnetic” (HRP901) Wheel ASSY (NP), capstan How to apply the belt M901 2 4 Holder sub ASSY, cassette 3 Spring (tortion) Hinge 1 Move hinge awsy from projection 1 Move hinge awsy from projection Hinge ? ? ? ? ? ? ? ? ? ? 6 z CAUTIONS DURING “HOLDER SUB ASSY, CASSETTE” ASSEMBLY 2 4 Holder sub ASSY, cassette 1 Spring (tortion) 3 Close the “Holder sub ASSY, cassette” then press it 2-6. SETTING THE POINTER 2 Install the pointer and align it with A section A Pointer Pointer 1 Turn the tuning knob in the arrow direction ? ? ? ? ? ? ? ? ? ? 7 SECTION 3 ADJUSTMENTS 3-2. ELECTRICAL ADJUSTMENTS PRECAUTION Supplied voltage : 2.5V. Switch and control position MEGA BASS : OFF VOLUME control : maximum AVLS : NORM PB EQ : NORM ISS : 1 FM MODE : ST TAPE SECTION 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 reading of step 1. 0 dB = 0.775V set test tape WS-48A (3kHz, 0dB) frequency counter 16 phones jack (J301) 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. Do not use a magnetized screwdriver for the adjustments. 3. These measurement and adjustment should be performed with the rated power supply voltage (2.5 V) unless otherwise noted. Torque Measurement ModeTorque meterMeter reading 1.97 2.94 mNm FWD(20 30 g cm) CQ-102D (0.28 0.41 oz inch) FWD less than 0.19 mNm (less than 2 g cm) back tension (less than 0.027 oz inch) more than 3.93 mNm FF, REWCQ-201B(more than 40 g cm) (more than 0.56 oz inch) RV601 : Tape speed Adjustment TUNER SECTION AM Section BAND : AM FM Section BAND : FM 0 dB = 1V 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 16 phones jack (J301) level meter CT1-23 FM RF signal generator 22.5kHz frequency deviation by 400Hz signal. Output level : as low as possible ANT (TP30) 0.01F MAIN BOARD (SIDE A) Adjustment Location : ? ? ? ? ? ? ? ? ? ? 8 AM IF ADJUSTMENT Adjust for a maximum reading on level meter. T1455kHz AM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L4515kHz CT1-41,680kHz AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L1620kHz CT1-11,400kHz FM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L386MHz CT1-3109.5MHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L286MHz CT1-2109.5MHz Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. : Saudi Arabia model J302 L1 L2 L3 L4 T1 CT1-4 CT1-3 CT1-1 CT1-2 J302 FM Frequency Coverage Adjustment AM Frequency Coverage Adjustment AM IF Adjustment AM Tracking Adjustment Tape speed adjustment RV601 FM Tracking Adjustment MAIN BOARD (SIDE B)MAIN BOARD (SIDE A) Adjustment Location : Main board ? ? ? ? ? ? ? ? ? ? 9 10 WM-GX100 4-1. BLOCK DIAGRAM (1/2) SECTION 4 DIAGRAMS MIC AMP, ALC IC341 (1/2) REC/PB AMP IC341 (2/2) TAPE EQ AMP, MEGA BASS/AVLS CONTROL, HEADPHONE AMP IC301 02 ANT A TUNER MUTE C TUNER L/R TUNER LTUNER R B VCC B+REC B+ D309 TAPE B+ REC B+ TAPE B+ BATT B+ SWITCHING Q608 D301 D302 D101 D102 HP MUTE VCC B+ VCC B+ REC B+ POWER MUTE SWITCH Q305 VCC B+ 2 1 MIX OUT (L) MIX OUT (R) POWER IN (L) POWER IN (R) POWER OUT (L) POWER OUT (R) COM VREF L R LOW BOOST IN (L) LOW BOOST IN (R) MUTE PRE OUT L L-CH HE901 (ERASE) FWD L REV L HRP901 (REC/PB) D305 D306 TUNER B+ REC B+ TUNER VCC REC B+ BUF IN B PB OUT B REC OUT B BUF IN A MIC IN B MIC OUT B MIC IN A DET 2 OUT PRE NF 2 PRE OUT 2 PRE NF 1 PRE OUT 1 2 PWR MUTE 9 TUNER B+ PRE MUTE 10 26252122 6 AVLS 3 8 4 35 34 36 1 20 18 24 31 28 15 8 2 14 13 1621 19 + + + + ALC MIC AMP PB AMP REC AMP MIC OUT A 17ALC MIC AMP REC MUTE SWITCH Q359 PB MUTE SWITCH Q360 B+ SWITCH Q609 START/STOP CONTROL SWITCH Q610 START MUTE SWITCH Q606 REC BIAS OSC Q351 PRE MUTE SWITCH Q310 MUTING CONTROL SWITCH Q311 HEADPHONE SWITCHING Q356 TAPE EQ SWITCH Q101, 201 NF DET DET CONTROL M.B. ON/OFF 14 LOW BOOST J303 MIC RV301 VOLUME MUTING Q141 MUTING Q241 PB OUT A REC OUT A 9 3 EQ AMP POWER AMP POWER AMP POWER AMP MODE CONTROL CIRCUIT PB AMP REC AMP RADIO/TAPE 11 12 PWSW REC/PB R-CH S303 (1/4) S303 (2/4) RECPB S303 (REC/PB) RECPB S303 (4/4) (REC/PB) RECPB S303 (4/4) (REC/PB)NORMLIMIT CrO2/METAL NORM PB EQ S310 VREF OFF ON MEGA BASS S306 AVLS S305 OFFON PAUSE S308 MUTE PRE OUT R FWD R REV R VREFVREF 23 30 29 32 EQ AMP + + + VREF VREF MIX 2 MIX 1 T351 BIAS OSC S307 ISS 3 2 1 + J301 (HEADPHONE) 2 + STOP MUTE SWITCH Q607 + SPEED CONTROL CAPSTAN/REEL MOTOR DRIVE IC601 M901 (CAPSTAN/REEL) MOTOR DRIVE CIRCUIT SWITCH & LOGIC CIRCUIT BIAS REFERENCE VOLTAGE OSC CIRCUIT TH601 TAPE SPEED RV601 S/S VREF IN+ COMPARATOR VSP OUT OSC 13 14 11 15 16 17 WOUT 6 VOUT 5 UOUT WV U 4 S301 (TAPE POWER) (ON at FF/REW/PLAY modes.) BATT B+ REC B+ VCC B+ TUNER VCC MIC B+ S1 (1/2) (FUNCTION) FM B+ TUNER B+ D503 D502 AM B+ TAPE B+ RIPPLE FILTER Q301, 302 B+ SWITCH Q341, 343 TUNER ON SWITCH Q303 TAPE ON SWITCH Q304 DRY BATTERY SIZE AA (IEC DESIGNATION R6) 2PCS. 3V FM AM TAPE (RADIO OFF) S1 (2/2) (FUNCTION) FM AM TAPE (RADIO OFF) D308 BATT J302 DC IN 3V + SIGNAL PATH : TUNER (FM/AM) : TAPE PLAY : TAPE REC : MIC INPUT ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 11 12 WM-GX100 4-2. BLOCK DIAGRAM (2/2) 1 48 24 2123 FM RF AMPFM/AM MIX AMP FM/AM OSC FM IF AMP DECODER AMP SWITCH DIVIDER/ VCO FM DET LEVEL DET AM DET FM MUTE AF BUFFER AM IF AMP PD1 PD2 AM RF AMP 7 FM RF IN FM/AM MIX OUT CF1 10.7MHz X1 10.7MHz CF2 455kHz 12 FM IF IN 14 13 L-OUT R-OUT 151610 AM IF IN LPF2 AM/XFM LPF1 M/XST TUN LED FM OSC 20 AM OSC L1 AM FERRITE-ROD ANTENNA FM RF OUT AM RF IN L2 FM RF FM/AM RF AMP, FM/AM MIX AMP, FM/AM OSC, FM/AM IF AMP, DET, MPX IC1 CT1-2CV1-2 CV1 TUNING CT1-1CV1-1 L3 FM OSC CT1-3CV1-3 L4 AM OSC CT1-4CV1-4 CT1-3, L3 FM FREQUENCY COVERAGE CT1-4, L4 AM FREQUENCY COVERAGE CT1-1, L1 AM TRACKING CT1-2, L2 FM TRACKING T1 AM IF B.P.F. FL1 FM/AM BAND SELECT SWITCH Q33, 34 FM B+ D33 ANT A TUNER MUTE C TUNER L/R B SIGNAL PATH : FM : AM 02 11 ST LED AGC TUN LED ST LED MUTING CONTROL SWITCH Q30 32 AM B+ FM B+ DET OUT AF AMPMPX IN QUAD 1817 S2 FM MODE MONO ST ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 13 14 WM-GX100 02 234567891011 A 1 B C D E F G H IC1 IC341 IC301 IC601 D308 BATT 11 (11) 1-679-163- 11 (11) 1-679-163- C7 RV301 w VOLUME C9 R310 CV1-1 CV1-4 CV1-2 CV1-3 CT1-2CT1-3 CT1-1CT1-4 4-3. PRINTED WIRING BOARDS Note: X : parts extracted from the component side. a: Through hole. Abbreviation EA: Saudi Arabia CH: Chinese TW: Taiwan E: Indication of country of origin 9E: No Indication of country of origin : Pattern from the side which enables seeing. (The other layers patterns are not indicated.) Caution: Pattern face side:Parts on the pattern face side seen from the (Side B)pattern face are indicated. Parts face side:Parts on the parts face side seen from the (Side A)parts face are indicated. D33E-7 D101G-10 D102G-10 D301F-8 D302F-8 D305D-9 D306D-9 D308G-2 D309F-9 D405F-8 D502E-2 D503E-2 IC1C-3 IC301E-3 IC341D-2 IC601G-2 Q30F-9 Q31F-7 Q32F-7 Q33D-7 Q34D-7 Q101F-2 Q141B-10 Q201F-2 Q241B-10 Q301F-3 Q302F-3 Q303F-3 Q304F-3 Q305E-10 Q310E-9 Q311F-9 Q341D-10 Q343D-10 Q351H-4 Q356D-9 Q359F-9 Q360F-9 Q606G-10 Q607F-10 Q608F-10 Q609F-10 Q610F-10 Ref. No.Location z Semiconductor Location ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 15 16 WM-GX100 4-4. SCHEMATIC DIAGRAM (1/2)z Refer to page 19 - 20 for IC Block Diagrams. z Refer to page 19 for Notes. z Refer to page 19 for Waveforms. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 17 18 WM-GX100 4-5. SCHEMATIC DIAGRAM (2/2) z Refer to page 19 - 20 for IC Block Diagrams. z Refer to page 19 for Notes. z Refer to page 19 for Waveforms. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 19 Note on 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. A : B+ Line. H : adjustment for repair. Power voltage is dc 3 V and fed with regulated dc power supply from external power voltage jack. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark :FM () :AM (RADIO SECTION), PLAY (TAPE SECTION) Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may
