sony_icf-m410s_service_manual 电路图 维修原理图.pdf
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1、ICF-M410S AEP Model E Model SERVICE MANUAL FM STEREO/SW/MW PLL SYNTHESIZED RADIO Sony Corporation Personal Audio Company Shinagawa Tec Service Manual Production Group 9-873-157-01 2001E1600-1 2001.5 SPECIFICATIONS Ver 1.0 2001. 05 Speaker: 7.7 cm (318 inches) 8 Power output: 200 mW (at 10 % harmonic
2、 distortion) Output: v (earphone) jack (3.5 mm minijack) Power requirements: 4.5 V DC, three R6 (size AA) batteries External power source: DC IN 4.5 V Dimensions: Approx. 205 104 40.5 mm (w/h/d) (Approx. 8 1/3 4 1/8 1 5/8 inches) not incl. projecting parts and controls Approx. 212 104 42.5 mm (w/h/d
3、) (Approx. 8 3/8 4 1/8 1 11/16 inches) incl. projecting parts and controls Mass: Approx. 504 g (17.8 oz ) incl. batteries Design and specifications are subject to change without notice. RadioFans.CN 2 TABLE OF CONTENTS ICF-M410S Notes on chip component replacement Never reuse a disconnected chip com
4、ponent. 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 soldering iron on the same conductor of the circuit board (within 3 times). Be careful not to appl
5、y force on the conductor when soldering or unsoldering. 1. GENERAL 3 2. DISASSEMBLY 4 3. ELECTRICAL ADJUSTMENTS 5 4. DIAGRAMS 4-1.Block Diagram 7 4-2.Schematic Diagram 8 4-3.Printed Wiring Board 9 4-4.IC Pin Function Description 10 4-5.IC Block Diagram 10 5. EXPLODED VIEWS 11 6. ELECTRICAL PARTS LIS
6、T 12 RadioFans.CN 3 ICF-M410S This section is extracted from instruction manual. SECTION 1 GENERAL * Telescopic Antenna TUNE/TIME SET VOL DC IN 4.5V v jack Setting the Clock The display will flash “0:00” when the batteries are installed or the AC power adaptor is plugged in for the first time. The c
7、lock can be adjusted when the radio is off. 1To stop flashing of the display, press CLOCK (mb/CLOCK for ICF-M410S). 2While holding down CLOCK, turn TUNE/TIME SET to set the clock to the current time. When you turn the control knob a little to or , the clock digits move forward or back one by one, an
8、d when you turn the control knob further to or , the clock digits move rapidly. When you release CLOCK, the clock starts operating, and “:” starts flashing. 24-hour system : “0:00” = midnight, “12:00” = noon RadioFans.CN 4 ICF-M410S SECTION 2 DISASSEMBLY Note :Follow the disassembly procedure in the
9、 numerical order given. 9Screw (+PTPWH 2 8) 1Screw (+B 3 6) 3Five screws (+BTP 3 14) q;Two screws (+P 2 8) qfTwo screws (+P 2 8) 6Screw (+PTPWH 2.6 8) 7Side panel (L) qsSide panel (R) qdArm (jog) 8JACK board qgKEY board qjMAIN board qhKnob 2Antenna, telescopic Cabinet rear 4Claws qaClaws Remove the
10、Claws Remove the Claws Knob (jog) 5Plate, contact Cabinet (front) sub assy RadioFans.CN 5 ICF-M410S SECTION 3 ELECTRICAL ADJUSTMENTS BAND : MW/SW Repeat the procedures in each adjustment several times for the maximum level meter indication. The frequency coverage and tracking adjustments should be f
11、inally done by the trimmer capacitors. FM SECTION Adjustment Location : Main board (Component side) Put the lead-wire antenna close to the set. 30% amplitude modulation by 400Hz signal. Output level : as low as possible AM RF signal generator 0.01F FM RF signal generator telescopic antenna terminal
12、75kHz (100%) amplitude modulation by 1kHz signal. Output level : as low as possible 16 set + level meter Speaker terminal (EPJ301) AM IF ADJUSTMENT Adjust for a maximum reading on level meter. T1621 kHz FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L1787.5 MHz CT3108 MHz BAND :
13、 FM MAIN BOARD 1 1516 30 IC1 (Component side) L4,CT1 SW TRACKING adjustment L17,CT3 FM TRACKING adjustment T1 AM IF adjustment CT2 MW TRACKING adjustment L11 MW FREQUENCY COVERAGE adjustment L9 SW FREQUENCY COVERAGE adjustment MW/SW SECTION MW/SW TRACKING ADJUSTMENT Adjust for a maximum reading on l
14、evel meter. SW L45,800 kHz CT115,900 kHz MW ANT102621 kHz CT21,404 kHz MW/SW FREQUENCY COVERAGE ADJUSTMENT Adjust for a maximum reading on level meter. SWL95,800 kHz MWL11531 kHz RadioFans.CN 6 ICF-M410S SECTION 4 DIAGRAMS Note on Schematic Diagram: All capacitors are in F unless otherwise noted. p:
15、 pF. 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. f: internal component. C : panel designation. A : B+ Line. H : adjustment for repair. Voltages are dc with respect to ground under no-signal (detuned) condi
16、tions. no mark : FM : Impossible to measure Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal produc- tion tolerances. Signal path. F: FM f: AM (SW) The components identified by mark 0 or dotted line with mark 0 are critical for safety. Waveform 2Vp-
17、p 1 IC101 wf (XOUT) 1.4V Note on Printed Wiring Board: X : parts extracted from the component side. : Pattern from the side which enables seeing. RadioFans.CN 77 ICF-M410S 4-1. BLOCK DIAGRAM : FM B.P.F D2 Q10 13 BPF1 Q1 SW RF AMP Q4 MW RF AMP Q2 Q5 Q6 Q7 Q3 INVERTER Q8 BUFFER Q9 BUFFER L4 SW RF ANT1
18、02 (FERRITE-ROD) 13 10 8 FM RF IN FM RF FM OSC AM RF IN L9 SW OSC L11 MW OSC 6AM OSC 11 L17L18 FM RF L14 FM OSC 9REG VT VT 1518 17 IF OUT 3 FM DISCRI 7AFC CF2CF3 CF1 CF4 10.7MHz 450kHz450kHz IFT T1 FM IF IN AM IF IN 2 16BAND CT2 CT1 CT3 Q11 20METER 24 25 DET AF IN Q13 AF OUT 27B + VOL5 Q14 NF RV1 IC
19、1 FM/AM FRONT-END,IF,DET,AF AMP ANT101 (TELESCOPIC) BAND(MW/SW) BAND(FM/AM) MAIN BOARD IC2 3.0V REG VOUT VIN1 IC3 3.0V REG VOUT VIN1 2 +3V-2 +3V-2 +3V-2 Q15,Q16 + + JACK BOARD DCJ301 EPJ301 SP301 DC IN 4.5V EARPHONE ) ( SPEAKER ) 28 2 VT VDET VCOL VCOH VDD GND BAND(FM/AM) BAND(MW/SW) MUTE BEEP B + P
20、OWER BAND(FM/AM) BAND(MW/SW) MUTE BEEP POWER CN1 W101 CN2 W102 VDD23 4 5 2 3 52 Q101 AMP 20 21 VCOL VCOH DC/DC CONVERTER TUNING CONTROL Q153,Q154,T101 Q151,Q152 19 IC102 +3.2V VOLTAGE DET. IC103 +2.5V VOLTAGE DET. 1 1 2 2 53 50 BATT LOW CE 35 49 9 6 15 1 34 31 16 19 13 10 LCD0 LCD14 COM0 COM3 KEY SC
21、AN0 KEY SCAN3 KEY RET0 KEY RET3 51 INT VDD VDD S115 HOLD 24 25 XOUT XIN X101 75kHz IC101 DIGITAL TUNING SYSTEM CONTROL S101-S114 KEY MATRIX LCD101 Signal Path KEY BOARD VT EO VDDVOUT VDDVOUT 4 BAT301 (+13V) ( MW FREQUENCY COVERAGE SW TRACKING SW FREQUENCY COVERAGE FM TRACKING MW TRACKING VOL DRY BAT
22、TERY SIZE AA (IEC DESIGNATION R6) 3PCS, 4.5V AM IF OFF ON R RadioFans.CN 88 ICF-M410S 4-2. SCHEMATIC DIAGRAM IC B/D See page 6 for Wavefoms. See page 10 for IC Pin Function Description. See page 10 for IC Block Diagrams. RadioFans.CN 99 ICF-M410S 4-3. PRINTED WIRING BOARD IC101 IC102 IC103 IC2 IC1 I
23、C3 MIN MAX VOL RV1 JW3 3 2 15 4 1 2 34 5 C55 1-681-632- 1 5 W1 JW1 JW24 C E B K K C E B 1 1 7 7 CN1 CN2 JW6 JW5 JW4 C E B C E B C E BK K JW7 JW8 CF1 L8 C40 C44 C46 JW9 T1 15 16 1 30 JW10 CF4 C51 JW13 C E B CE B C E B JW18 L9 L11 CT2 JW12JW16 K K G K K K CT3 L17 L18 C17 JW15 C49 BPF1 1 3 K JW14 CT1 L
24、4 C8 K G B E C B E C C B E K E B C JW17 ANT102 MW FERRITE-ROD ANTENNA ANT101 FM/SW TELESCOPIC ANTENNA MAIN BOARD 11 (11) JW11 CF2 CF3 JACK BOARD SP301 EPJ301 DCJ301 DC IN 4.5V C302 JW301 W301 5 1 1-681-633- K K K DRY BATTERY SIZE AA (IEC DESIGNATION R6) 3PCS, 4.5V 11 (11) TP22 (RFGND) TP20 (NET)TP2
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