sony_icf-c1200 电路图 维修原理图.pdf
Ver 1.0 2001.03 ICF-C1200 SERVICE MANUAL FM STEREO/AM PLL SYNTHESIZED RADIO SPECIFICATIONS US Model AEP Model E Model Tourist Model 9-873-106-11 2001C0200-1 2001.3 Sony Corporation Audio Entertainment Group General Engineering Dept. RadioFans.CN 2 ICF-C1200 Specifications . 1 1.GENERAL. 2 2.DISASSEMBLY 2-1. Main Board . 3 3.ELECTRICAL ADJUSTMENTS 3-1. Tuner Section. 4 4.DIAGRAMS 4-1. Explanation of IC Terminals. 6 4-2. Block Diagram. 7 4-3. Printed Wiring Boards Main Section (1/2) (Side A) . 8 4-4. Printed Wiring Boards Main Section (2/2) (Side B) . 9 4-5. Schematic Diagram. 10 5.EXPLODED VIEWS 5-1. Main Section. 13 6. ELECTRICAL PARTS LIST. 14 TABLE OF CONTENTS SECTION 1 GENERAL 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. LOCATION AND FUNCTION OF CONTROLS This section is extracted from instruction manual. r UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.) : LEAD FREE MARK Unleaded solder has the following characteristics. Unleaded solder melts at a temperature about 40C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. RadioFans.CN 3 ICF-C1200 SECTION 2 DISASSEMBLY 2-1. MAIN BOARD 2 Screws (1.4X6 tapping) 4 Screws (1.4) 5 Claw 5 Claw 5 Claw 7 Remove solder (three places) Red Cabinet (rear) ASSY 6 8 3 1 5 Claw Cabinet (front) ASSY Main board Knob (HOLD) ANT101 S301 Brown Caution during assembly Align the hold switch(S301) to the knob(HOLD). Black Note : Follow the disassembly procedure in the numerical order given. RadioFans.CN 4 ICF-C1200 SECTION 3 ELECTRICAL ADJUSTMENTS BAND button : AM Volume : MIN 3-1.TUNER SECTION AM Section FM Section BAND button : FM Volume : MIN Put the lead-wire antenna close to the set. AM RF signal generator 30% amplitude modulation by 400Hz signal. Output level : as low as possible telescopic antenna terminal FM RF signal generator 22.5kHz frequency deviation by 400Hz signal. Output level : as low as possible 0.01 uF Adjustment Location : Main board (See page 5) Repeat the procedures in each adjustment several times, and the frequency coverage and tracking adjustments should be finally done by the trimmer capacitors. AM IF ADJUSTMENT Adjust for a maximum reading on level meter. T1011485kHz AM FREQUENCY COVERAGE ADJUSTMENT Adjust partFrequency display L105531kHz reading on digital voltmeter. Adjustment value: 2.7V Standaed value: 2.5 to 2.9V AM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L 102585kHz CT1011,485kHz Frequency Coverage Adjustment Connect Location : FM FREQUENCY COVERAGE CONFIRMATION Adjust partFrequency display Confirmation 87.5MHz3.0 to 4.0V Confirmation108MHz9.5 to 10.5V reading on digital voltmeter FM TRACKING ADJUSTMENT Adjust for a maximum reading on level meter. L10387.5MHz CT102108MHz 32 level meter set J201 (phones) + 0dB=1V : US model MAIN BOARD (SIDE A) S308 (JOG SWITCH) BAT401 PAS TP (VT) C405 R404 C412 R403 R314 R315 R405 C404 C301 C406C407 R401 R402 D402 D403 BCEQ402 B Q302 ECB T401 + Digital TP (VT) 100K voltmeter RadioFans.CN 5 ICF-C1200 1- C113 C108 CF101 L104 L101 C212 C202 C118 T101 C201 C207 C205 R204 C103 C211 C214 C213 C206 C204 C410 R113 R129 R112 R202 R205 R201 R203 BCE Q201 BCE Q202 C210 C215 C208 C203 C209 C120 C122 D108 CT102 IC201 1 5 8 16 12 9 D109 TP (3V) TP (76K) + + 33k TP1 (76k) TP(3V) 1F frequency counter MAIN BOARD (SIDE A) VCO Adjustment Procedure : FM RF signal generator Carrier frequency : 98MHz Modulation : No modulation Output level : 1.38mV (55dB) set telescopic antenna terminal 0.01 F 1. Connect the frequency counter to TP (76k) and TP (3V) as shown the figure below. 2. Turn the set to 98MHz. 3. Adjust RV101 for 76kHz reading frequency counter. Standard value:75.5kHz to 76.5kHz. Adjustment Location: MAIN BOARD (SIDE A) CT101: AM Tracking Adjustment L102: AM Tracking Adjustment L105: AM Frequvency Coverage Adjustment RV101: VCO Adjustment T101: AM IF Adjustment L103: FM Tracking Adjustment CT102: FM Tracking Adjustment RadioFans.CN 6 ICF-C1200 Pin No.Pin nameI/ODescription 1-4COM1-4OLCD common output. 5-26S1-S22OLCD segment output. 27HOLD SWIHOLD switch input. ON:L OFF:H 28-30KR1-3IKey return input. 31VDDPower supply terminal. 32-34KR1-3OKey souce output. 35POWEROPower ON control signal output. ON:L OFF:H 36BEEPOBeep signal output. 37MUTEOMute signal output. 38WAKE UPOAlarm output at volume control min. ON:L OFF:H 39LCDILCD check test mode setting input. 40BANDOBand select signal output. AM:H FM:L 41TESTNot used (Fixed at L). 42HOLDNot used (Fixed at L). 43INTR1I1.9V voltage detection terminal. Radio OFF :L 44INTR2I1.1V voltage detection terminal. All OFF :L 45Not used (OPEN). 46Not used (OPEN). 47GNDGround terminal. 48FM INIFM local oscillator signal input. 49AM INIAM local oscillator signal input. 50VDDPower supply terminal. 51D01Not used (OPEN). 52D02OTuning voltage control output. 53VREGRegulator output for phase compalator. 54Not used (OPEN). 55AL SW1IALARM switch input (OFF). 56AL SW2IALARM switch input (RADIO). 57AL SW3IALARM switch input (BUZZER). 58VDETI2.1V voltage detection input. 59IDIDestination select input. 60IDIDestination select input. 61Not used (OPEN). 62SP BEEPOBeep signal output. 63LIGHTOLCD back light ON/OFF output. 64ST/MOOStereo/Mono select output. 65-69Not used (OPEN). 70RESETIReset signal input. 71XOUTOOscillator output (75kHz). 72XINIOscillator input (75kHz). 73GNDGround terminal. 74VDBCapacitor terminal. 75C1Capacitor terminal. 76C2Capacitor terminal. 77VEEVoltage pull-up terminal. 78C3Capacitor terminal. 79C4Capacitor terminal. 80VLCDVoltage pull-up terminal. SECTION 4 DIAGRAMS 4-1. EXPLANATION OF IC TERMINALS IC301 TC9328AF-SR7491 (System control, LCD driver) RadioFans.CN 77 ICF-C1200 4-2. BLOCK DIAGRAMS Signal path. F: Analog f: Digital Abbreviation JE: Tourist D401 BAT401 RV201 T101 X301 KS1 KS2 KS3 KR1 KR2 KR3 T401 Q104 D106D107 RV101 Q103 D402 Q101 D101 D103 D104 D102 CF102 CF103 CF101 J201 D303D304 Q201Q202 PAS 75kHz BAND SELECT AM_IF IN FM_IF IN L_CH R_CH REG FM_OSC AM_OSC MPX REG PLL LPF FM/AM DET,FM MPX FRONT-END,IF AMP, TELESCOPIC ANTENNA SPEAKER AM IF VCO COVERAGE AM FREQUENCY FM FREQUENCY COVERAGE AM TRACKING FM/AM FE OUT FM RF IN AM RF IN FM RF PILOT DET LPF2 CT101 HOLD SW POWER BEEP MUTE WAKEUP BAND INTR1 INTR2 FMIN AMIN DO2 VDET ID ID AL SW1 AL SW2 AL SW3 LIGHT RESET XOUT XIN SP BEEP ST/MO DISPLAY LIQUID CRYSTAL FERRITE-BAR AM ANTENNA L102 CT102 FM TRACKING L102,CT101 L105 LCD301 VOL AM AM OSC FRONT-END OSC FRONT-END FM FM VREF AM OSC L105 OSC L104 L104 VREF LPF1 VCO MPX REG MPX, DECODER AMP FM IF/ DISCRI AM IF/ DET DET PILOT S22 S1 COM0 COM4 VCC AM RF FM FM RF ( ) ( ) ( ) ( ) L103,CT102 L103 + SP101 ANT101 IN1 REG VOL OUT1 OUT2IN2 SYSTEM CONTROL BUFFER DC-DC CONVERTER Q401,402 LED DRIVERLCD BACK LIGHT D301,302 ( ) SPEAKER BEEP BEEP +B SWITCH Q403,404 DETECTDETECT 1.1V VOLTAGE1.9V VOLTAGE DETECT 2.1V VOLTAGE RESET POWER AMP VOL, DRY BATTERY 2PCS,3V ONOFF HOLD (IEC DESIGNATION R03) SIZEAAA BATT VCC BACK UP +1.5V REG (+1.2V) IC401 S311 ALARM MODE OFF RADIO BUZZER KEY MATRIX S302-310 LPF Q102 REGVOL POWER AMP POWER AMP Q203,204 GATEQ206 BATT REG IC201 Q303 AEP,E US,JE US,AEP,E JE BACK UP -14526 BACK UP Q205 BACK UPBATT BATT IC301 IC305IC304IC302IC303 IC101 Q302 RadioFans.CN 88 ICF-C1200 MAIN BOARD (SIDE A) 1-681-238- S310 BAND /ENT 13 (13) S308 (JOG SWITCH) . BAT401 PAS C113 C108 CF101 L104 L101 R131 C212 C202 C118 T101 C201 C207 C205 C324 C403 C411 C306 C305 C304 C405 C302 C326 C309 C303 C408 R404 C409 C412 R403 R124 R119 R204 R407 R327 R379 R332R333 R406 R387 C325 R302 R377 R376 R375 R301 R321 R388 R306 R308 R307 R305 R304 R337 R322 R303 R310 R309 R311 R312 R342 R319 R318 R343R346R350 R320 R345 C308 R389 R339 R340 R341 R349 R313 R328 R329 R314 R315 R405 C123 C103 C211 C214 C213 C206 C204 C216 C323 C321 C320 C410 C328 C402 C307 C322 C311 C404 C301 C406C407 R113 R129 R112 R202 R205 R201 R203 R211 R212 R210 R351 R374 R371 R370 R369 R368 R367 R366 R365 R364 R363 R362 R361 R360 R359 R358 R357 R356 R355 R354 R353 R352 R213 R373 R323 R338 R372 R380 R344 R382 R392 R401 R316 R381 R317 R402 D401 C316 C319 R331 R215 R390 R391 C313 C312 C318 C317 C314 R214 D303 D304 D402 D403 BCEQ402 BCE Q404 BCE Q201 BCE Q302 ECB Q206 ECB Q203 ECB Q204 ECB Q401 BCE Q403 BCE Q202 IC302 IC301 1 34 2 IC304 1 3 4 2 IC401 1 3 45 IC305 1 3 4 2 ECB Q205 IC303 1 34 2 C210 C215 C208 C203 C209 BROWN RED C120 C114 RV101 C122 L105 CT102 CT101 L102 AM FERRITE-BAR ANTENNA L103 IC201 1 5 8 16 12 9 1 60 5 55 10 50 15 45 20 21 80 25 75 30 70 35 65 40 61 41 T401 C315 X301 RV201 VOL w C401 D109 S311 ALARM MODE OFF RADIO BUZZER TP (3V) TP (76K) SP101 SPEAKER US,AEP,E MODEL AEP,E MODEL US,JE MODEL JE MODEL R337 R322 R323 R338 DRY BATTERY SIZE AAA (IEC DESIGNATION R03) 2PCS, 3V 23456789 A 1 B C D E 4-3. PRINTED WIRING BOARDS MAIN SECTION (1/2) (SIDE A) D109C-6 D303B-4 D304B-4 D401C-5 D402B-3 D403B-2 IC201C-6 IC301C-3 IC302B-4 IC303C-5 IC304B-4 IC305B-5 IC401D-5 Q201D-6 Q202C-6 Q203B-5 Q204B-6 Q205D-2 Q206D-2 Q302B-3 Q401B-2 Q402B-2 Q403D-5 Q404D-5 Ref. No.Location z Semiconductor Location : Uses unleaded solder. Note : X : parts extracted from the component side. z: Through hole. : 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. Abbreviation JE: Tourist RadioFans.CN 99 ICF-C1200 MAIN BOARD (SIDE B) 1-681-238- 13 (13) C217 C127 C128 C112 R111 C111 C110 C121 C125 C105 C106 C102 C104 R334 R121 R114 R126 R336 R335 R116 R108 L106 R384 R385 R386 R120 R101 R130 R127 R206R207 R118 C124 R117 R110 R107 R324 R326 R109 R128 R115 R383 R106 R125 R102 R107 R103 R123 R122 L202 L203 L201 C119 C115 C126 C116 C107 C117 C109 R325 C101 Q103 BCE Q101 ECB Q104 ECB Q303 B C E D107 D103 D104 D106 D101 D105 D102 S307 LIGHT S305 WORLD/ LOCAL S309 (JOG SWITCH) S301 HOLD OFF ON S306 SNOOZE S302 RADIO ON/SLEEP S303 OFF S304 MENU J201 i Q102 ECB D301 (BACK LIGHT) D302 (BACK LIGHT) CF103 15 25 15 20 30 10 16 IC101 . CF102 LCD101 23456789 A 1 B C D E ANT1 FM TELESCOPIC ANTENNA 4-4. PRINTED WIRING BOARDS MAIN SECTION (2/2) (SIDE B) D101A-1 D102B-1 D103C-2 D104C-2 D105D-8 D106B-1 D107D-1 D301C-3 D302B-3 IC101C-2 Q101B-1 Q102C-2 Q103D-2 Q104D-1 Q303D-3 Ref. No.Location z Semiconductor Location : Uses unleaded solder. Note : X : parts extracted from the component side. z: Through hole. : 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. Abbreviation JE: Tourist RadioFans.CN 1010 ICF-C1200 4-5. SCHEMATIC DIAGRAMz Refer to page 11 for Notes. z Refer to page 11 for IC Block Diagrams. z Refer to page 11 for Waveforms. IC101 L106 C119 T101 C118 D105D109 C102 C103 L101 0.1uH CF102 CF103 C120 C121 C122 C124C125 R117 R118 R119 R120 C127 R121 ANT101 S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 COM4 COM3 COM2 COM1 S17 S18 S19 S20 S21 S22 KS1 KS2 KS3 KR1 KR2 KR3 C1 C2 C3 C4 R373 R374 R377 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R312 R321 R372 C304 C305 C306 S302 S303 S304 S305 S306 S307 S308 S309 S310 R371 R370 R369 R368 R367 R366 R365 R363 R361 R360 R359 R358 R357 R356 R355 R354 R353 R352 IC304IC302 Q403 Q404 Q201Q202 Q205 Q203 Q302 IC401 C101 R101 R102 R103 D101 R104 R125 R127 R106R107 Q102 R108 R109 R110 R111 R112 R114 R115 D102 D102 C106 C105C107 L103 C110 C115 C116 C117 R126 R201 R202R205 C203 C204 C205 C206 C207 C208 C209 C216 R210 R211 R213 R214 R215 R334 D301D302 C404 C405 C406 C407 C408 C409 C410 C411 C412 D402R401 R402 R403 R404 R405 T401 R128 C301 R314 R315 R316 R317 C302 C303 D303 D106 D107 R319 R320 R344 R345 R381 R339 R340 R341 R382 R342 C307 C308 C309 C322 C311 R350 BAT401 R407 D401 C401 C403 R313 R329 R391 R332R333 C320 C321C323 R351 C202 C211 C213C214 C215 C210 C104 R301 R380 IC301 C201 SP101 R122 R123 R124 Q401Q402 D403 R406 RV101 C108 C109 C113 CF101 C217 R212 C328 C114 R113 R384 R322 R337 R349 L201 C123 C319 C317 C315 C314 C313 C312 X301 R379 R331 C316 C318 Q103 Q101 Q303 Q204 IC303 IC305 Q104 R328 L104 C126 J201 C212 IC102 R346 R327 D304 S301 R383 R385 R386 R323 R338 R206 R207L203 4.7uH L202 4.7uH Q206 C111 C324 D104 C112 D103 R130 R116 C128 R129 RV201 R203 R204 L105 R364 R362 R375 R376 R388 R387 C325 R318 C326 R343 R390 C402 R335R336 R389 R131 R392 CXA1238N 0.01 470p 1SS3021SS302 1000p 4p 104V 1 100 4V0.0330.033 3.3k 3.3k 10 33k 0.47 2.2k 470k 470k 470k 1k 1k 1k 1k 1k 1k 1k 1k 1k 1k 1k 1k 470k 2200p 2200p 2200p 470k 470k 470k 470k 470k 470k 470k 470k 470k 470k 470k 470k 470k 470k 220k 220k 220k 220k XC61CN1102NRS-80819ANNP UN9210 2SB815 2SB14622SB1462 2SD1048 2SD1048 2SD2216 S-81218SG 1000p 470k 100k 10k MA77 1k 470k 0 10k100k 2SC4627 3.3k 100k 22k 220 100 1M 2.2k -2 SVG347S -1 SVG347S 3p 0.0221000p 1000p 15p 22p 82p 10 47k 4.7k47k 10 4V 0.1 1 1 1 220 4V 100 4V 0.1 4.7k 4.7k 1k 100k 1M 100k SL1-343YCTSL1-343YCT 1 10p 10p 0.1 10 4V 10 1 1 0.1 MA2S1111k 220k 100k 47k 47 0 0.1 10k 220k 10k 10k 0.33 1000p RB521S RB521S RB521S 1M 1k 10k 1k 10 1k 1k 1k 0 1M 1 1000p 0.01 0.1 0.47 1M PAS 220 RB521S 10 4V 1 1k 1k 0 1M10k 0.01 0.10.1 10k 1 1000p 11 10 4V 100 4V 0.01 470k 470k TC9328AF 1 1k 470k 470k 2SD22162SD2216 MA8130 2.2k 22k 22 4V 0.01 4.7 4V 100p 10 0.1 10 4V 10k 1k 100k 100k 1k 1 0.1 0.1 104V 0.1 10p 15p 75kHz
