索尼SONY WM-FS111电路图.pdf
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1、WM-FS111 US Model Canadian Model AEP Model E Model SERVICE MANUAL RADIO CASSETTE PLAYER MICROFILM SPECIFICATIONS Model Name Using Similar MechanismNEW Tape Transport Mechanism TypeMF-WMFS111-114 Radio FrequencyFM : 87.6 108 MHz (North, Central and South America) 87.5 108 MHz (Italy and Saudi Arabia)
2、 65 107.9 MHz (Eastern Europe) 87.6 107.9 MHz (Other countries) AM : 530 1,710 kHz (North, Central and South America) 526.5 1,606.5 kHz (Italy and Saudi Arabia) 531 1,602 kHz (Other countries) Power Requirements3 V DC Batteries R6 (AA) 2 Dimensions104.0 122.0 48.7 mm(4 1/8 4 7/8 1 15/16 inches) (w/h
3、/d) incl. projecting parts and controls MassApprox. 300 g (10.6 oz) Approx. 380 g (13.5 oz) 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. Ver 1.1 2000. 05 ? ? ? ? ? ? ? ? ? ?
4、 2 TABLE OF CONTENTS Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing Keep the temperature of soldering iron around 270C during repairing. Do not touch the solder
5、ing 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. SECTION 1 GENERAL 1VOL (volume) knob 2BATT (battery) lamp 3TUNING knob 4FUNCTION selector 5AVLS selector 6MEGA BASS selector 7) REW button 8( PLAY butto
6、n 90 FF button 0p STOP button !TAPE/FM MODE switch (AEP, E Model) TAPE/FM SENS switch (US, CND, MX Model) !2 jack Abbreviation CND : Canadian model MX: Mexican model 1. GENERAL 2 2. SERVICE NOTE 2-1.How to Install The Wire Assembly 3 2-2.Water Proof Section 3 3. DISASSEMBLY 3-1.Holder Cassette Sub A
7、ssembly and Dial Scale 4 3-2.Main Assembly5 3-3.Main Board 6 3-4.Mechanism Deck 6 3-5.Belt 7 3-6.Magnetic head 7 4. MECHANICAL ADJUSTMENT 8 5. ELECTRICAL ADJUSTMENT8 6. DIAGRAMS 6-1.Block Diagram 11 6-2.Printed Wiring Board 13 6-3.Schematic Diagram 15 6-4.IC Block Diagrams 17 7. EXPLODED VIEWS18 8.
8、ELECTRICAL PARTS LIST 23 1 0 9 8 7 2 3 4 5 6 !? !? ? ? ? ? ? ? ? ? ? ? 3 SECTION 2 SERVICE NOTE 2-1. HOW TO INSTALL THE WIRE ASSEMBLY To install the wire assembly, route the wire assembly in the correct position referring to the illustration below. 2-2. WATER PROOF SECTION NOTE : In case the parts i
9、n the figure are removed for repair, treat them to protect from water drop following the instructions in the figure (spread grease, bond etc.) sony grease SGL-601 : 7-651-000-10 Wire assembly Knob (function) Knob (VOL) Knob (TUNE) Tapping screw (B)(1.4x6) Tapping screw (B)(1.4x6) Joint (AVLS) Gear (
10、VOL) Gear (B) Gear (A) O ring (DIA. 2.5xDIA. 4.5) (Apply Sony grease SGL-601) O ring (Apply Sony grease SGL-601) Apply Sony grease SGL-601 ? ? ? ? ? ? ? ? ? ? 4 SECTION 3 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. Note : Disassemble the unit in the order as sho
11、wn below. SetHolder cassette sub assembly and dial scale Main assemblyMain boardMechanism deckMagnetic head Belt 3-1. HOLDER CASSETTE SUB ASSEMBLY AND DIAL SCALE 1 Stop ring (E-1.2) 2 Tapping screw 3 Tapping screw 4 Holder cassette sub assembly 6 Cover (Cassette) 7 Dial scale 8 Wire assembly 5 Two t
12、apping screws (B1.7 4) ? ? ? ? ? ? ? ? ? ? 5 3-2. MAIN ASSEMBLY 3 Remve the main assembly in the direction of arrow. (Be careful not to focibly pull the wire that connects the main board and the headphone board.) 4 Remove the headphone borad in the direction of arrow. 1 Stop ring (E 1.2) 2 Two screw
13、s (+B1.7 7) CAUTION WHEN ASSEMBLING THE MAIN ASSEMBLY Assemble the main assembly in a way that each switch mates with the corresponding knob each other. Function switch (S301) Tuner (CV1) AVLS switch (S305) Mega Bass switch (S306) Volume (RV301) ? ? ? ? ? ? ? ? ? ? 6 3-3. MAIN BOARD 3-4. MECHANISM D
14、ECK 1 Remove the solder (four points) 3 Tooth screw ( M1.4) 4 Two claws 5 Main board 2 Flexible board (head) 1 Two claws 2 Remove the mechanism deck in the direction of arrow. ? ? ? ? ? ? ? ? ? ? 7 3-5. BELT 3-6. MAGNETIC HEAD Reel/Capstan motorCapstan wheel assy(SP) Belt threading Belt Belt 1 Two s
15、crews (M1.4) 2 Magnetic head (HP301) ? ? ? ? ? ? ? ? ? ? 8 SECTION 4 MECHANICAL ADJUSTMENT SECTION 5 ELECTRICAL ADJUSTMENT 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 demagne
16、tizer. 3.Do not use a magnetized screwdriver for the adjustments. 4.After the adjustments, apply suitable locking compound to the parts adjusted. Torque Measurement Mode FWD FWD Back Tension FF, REW Torque Meter CQ-102C CQ-102C CQ-201B Meter Reading 20 to 42 gcm (0.27 to 0.58 ozinch) More than 2.0gc
17、m (More than 0.027 ozinch) More than 50 gcm (More than 0.69 ozinch) TAPE SECTION Signal 3 kHz, 0 dB Used for Tape speed adjustment Tape WS-48A Test Tape Tape Speed Adjustment Procedure: Mode: Playback Adjustment Value: normal tape speed Adjust the tape speed adjustment RV601, so that the freqency co
18、unter reading becomes 2,985Hz. Specification Value: Frequency difference between the beginning and the end of the tape should be within 1.5% (45Hz). Adjustment Location: Test tape WS-48A (3kHz, 0dB) Set J301 (phones) 16 digital frequency counter + Digital frequency counter 2,970 to 3,000Hz 0dB=0.775
19、V RV601 ? ? ? ? ? ? ? ? ? ? 9 Switch Location VOLUME: MAX MEGA BASS : OFF AVLS: NORMAL AM BAND: AM Signal generator FM BAND : FM Signal generator AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L1620kHz CT11,400kHz TUNER SECTION Put the lead-wire antenna close to the set. 30% amp
20、litude modulation by 400Hz signal. Output level : as low as possible AM RF signal generator 0.01F FM RF signal generator FM IN point 75kHz(100%) amplitude modulation by 1kHz signal. Output level: as low as possible 16 set level meter J301 (phones) Repeat the procedures in each adjustment several tim
21、es for the maximum level meter indication. The frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. AM FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. L4520kHz CT41,750kHz1,680kHz AM IF ADJUSTMENT Adjust for a maximum reading on lev
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