Aiwa-FR-A251-Service-Manual 电路图 维修手册.pdf

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1、RADIO RECEIVER FR-A251 S/M Code No. 09-992-324-1R4 EZ(B,W) SERVICE MANUAL REVISION This Service Manual is the “Revision Publishing” and replaces “Simple Manual” FR-A251 EZ(S/M Code No.09-992-324-1T4). DATA RadioFans.CN 收音机爱 好者资料库 SPECIFICATIONS Power sourceAC 230 V, 50 Hz Output280 mW (EIAJ) Power c

2、onsumption4 W Speaker57 mm, 8 ohms Frequency rangeFM : 87.5 - 108 MHz LW : 150 - 285 kHz AntennasFM wire antenna Ferrite bar antenna for LW Dimensions (W x H x D) 124 x 126 x 160 mm (5 x 5 x 63/8 in.) Weight708 g (1.56 lbs.) Design and specifications are subject to change without notice 2 RadioFans.

3、CN 收音机爱 好者资料库 REF. NOPART NO.KANRIDESCRIPTION NO. REF. NOPART NO.KANRIDESCRIPTION NO. ELECTRICAL MAIN PARTS LIST Regarding connectors, They are not stocked as they are not the initial order items. The connectors are available after they are supplied from connector manufacturers upon the order is rec

4、eived. ! IC S2-516-191-000 IC,CXA1619AS(RF+1F+AUDIO) 87-A21-201-010 IC,LM8560(CLOCK) TRANSISTOR S1-71H-003-E00 TR,A1267-Y DIODE 82-135-799-080 DIODE,1N4148 S1-722-400-100 DIODE,1N4001 MAIN C.B BA51 S6-45A-011-A00 BATT SNAP TERMI C7 SE-C47-410-V05 CAP,E 0.47UF-10V C8 S1-41T-101-0M0 CAP,E 1.0UF-10V C9

5、 87-015-968-040 CAP,E 4.7UF-10V C12 87-010-264-010 CAP,E 100UF-10V C13 87-010-236-080 CAP,E 1000.0UF-10V C16 87-010-480-080 CAP,E 220UF-16V C17 87-010-236-080 CAP,E 1000.0UF-10V C19 87-010-264-010 CAP,E 100UF-10V C53 87-010-480-080 CAP,E 220UF-16V CF1 S3-33A-008-A00 AM C/FILTER SFU450B CF2 S3-32A-01

6、2-A00 FM C/FILTER SFE10.7 L1 S2-10A-067-A00 AM ANT COIL L4 S2-24A-038-A00 AM OSC COIL L5 S2-14A-034-A00 CHOKE COIL 47UH TYPE 4-6 LD51 S2-00A-008-A00 LED DISPLAY FTTL-655 SGAN-RG PVC1 S2-61A-031-A00 PVC(FRA250EZ) SP1 S3-23A-025-A00 SPAEKER 57P/8 OM 0.5W FER/MAG SW1 S2-81A-055-A00 SLIDE SW 2C-2P RG 4M

7、M(BAND) SW51 S2-81A-056-A00 SLIDE SW 2C-4P RG 4MM(POWER) SW53 S6-42A-065-A00 TACT SW TS114-16 SW54 S6-42A-065-A00 TACT SW TS114-16 SW55 S6-42A-065-A00 TACT SW TS114-16 SW56 S6-42A-065-A00 TACT SW TS114-16 SW57 S6-42A-065-A00 TACT SW TS114-16 SW58 S6-42A-065-A00 TACT SW TS114-16 T1 S2-20A-025-A00 FM

8、IFT 7-7-2 D30045 T2 S2-22A-028-A00 AM IFT 7-7-2 2B467 TF51 S4-01A-024-A00 POWER TRANS VR1 S2-56A-015-A00 SEMI V R 50K-B POINT CONTACT 3 TRANSISTOR ILLUSTRATION A1267-A RadioFans.CN 收音机爱 好者资料库 SCHEMATIC DIAGRAM _ 1 MAIN C.B 5 4 WIRING - 1 MAIN C.B PVC1 L1 LW ANT 6 WIRING - 2 7 MAIN C.B ELECTRICAL ADJ

9、USTMENT 8 MAIN C.B ELECTRICAL ADJUSTMENT 1. LW IF Adjustment Setting : Test point : TP1, 2(IN), TP8, 9(OUT) T2 . . . . . . . . . . . . . . . . . . . . . 450 kHz 2. FM IF Adjustment Setting : Test point : TP2, 3(IN), TP8, 9(OUT) IT1 . . . . . . . . . . . . . . . . . . . . 10.7 MHz 3. LW FREQ, RANGE A

10、djustment Setting : Test point : L1(IN), TP6, 7, 8, 9(OUT) L4 . . . . . . . . . . . . . . . . . . . . . 145 kHz TC4 . . . . . . . . . . . . . . . . . . . . 295 kHz 4. LW Tracking Adjustment Setting : Test point : L1(IN), TP6, 7(OUT) L1 . . . . . . . . . . . . . . . . . . . . . 150 kHz TC1 . . . . .

11、. . . . . . . . . . . . . . . 285 kHz 5. FM FREQ, RANGE Adjustment Setting : Test point : TP4, 5(IN), TP6, 7, 8, 9(OUT) L3 . . . . . . . . . . . . . . . . . . . . 87.4 MHz TC3 . . . . . . . . . . . . . . . . . . 108.3 MHz 6. FM Tracking Adjustment Setting : Test point : TP4, 5(IN), TP6, 7(OUT) TC2 .

12、 . . . . . . . . . . . . . . . . . . 106 MHz PRACTICAL SERVICE FIGURE SensitivityLess than 60 dB (150 kHz) (S/N 10dB)Less than 58 dB (200/285 kHz) S/N (Input 70dB)Less than 15 dB (150/200/285 kHz) DistortionLess than 3 % (1000 kHz) Intermediate frequency 450kHz Sensitivity (3% dist.)Less than 20 dB

13、(88/98/108 MHz) Distortion (at 60dB)Less than 2% (98MHz) Intermediate frequency 10.7MHz 9 IC BLOCK DIAGRAM IC,LM8560 IC,CXA1619S 10 MECHANICAL EXPLODED VIEW - 1/1 SPEC LABEL SPEAKER SCREW PVC PLATE SCREW POWER CORD SCREW 14 11 REF. NOPART NO.KANRIDESCRIPTION NO. MECHANICAL PARTS LIST 1/1 Basic color

14、 symbolColorBasic color symbolColorBasic color symbolColor BBlackCCreamDOrange GGreenHGrayLBlue LTTransparent BlueNGoldPPink RRedSSilverSTTitan Silver TBrownVVioletWWhite WTTransparent WhiteYYellowYTTransparent Yellow LMMetallic BlueLLLight BlueGTTransparent Green LDDark BlueDTTransparent Orange COL

15、OR NAME TABLE 1 S6-73A-041-A00 TOP CABINET251EZ 1 S6-73A-040-A00 TOP CABINET251EZ 2 S6-74A-048-A00 BOTTOM CABINET251EZ 2 S6-74A-049-A00 BOTTOM CABINET251EZ 3 S6-87A-085-A00 DIAL LENS 4 S6-87A-016-A00 BATTERY COVER251EZ 4 S6-97A-011-A00 COVER BATTERY251EZ 5 S6-12A-050-A00 BRACKET LED 6 S7-08A-052-A00

16、 TUNING KNOB251EZ 6 S7-08A-045-A00 TUNING KNOB(D-GRY)251EZ 7 S7-08A-055-A00 VOLUME KNOB251EZ 7 S7-08A-060-A00 VOLUME KNOB251EZ 8 S7-01A-021-A00 DIAL POINTER251EZ 8 S7-01A-025-A00 DIAL POINTER251EZ 9 S7-08A-070-A00 POWER KNOB251EZ 9 S7-08A-065-A00 POWER KNOB251EZ 10 S7-08A-075-A00 BAND KNOB251EZ 10 S

17、7-08A-080-A00 BAND KNOB251EZ 11 S7-08A-051-A00 BUTTON CLOCK251EZ 11 S7-08A-050-A00 CLOCK BUTN(D-GRY)251EZ 11 S7-08A-082-A00 CLOCK BUTTON251EZ 12 S7-08A-085-A00 BUTTON SNOOZE251EZ 12 S7-08A-090-A00 SNOOZ BUTON251EZ 13 S6-12A-041-A00 HOLDR,ANT 14 S6-35A-010-A00 RUBBER FOOT(BLK) 12 REF. NOPART NO.KANRIDESCRIPTION NO. ACCESSORIES LIST 1 S8-00A-275-A00 INSTRUCTION BOOK(A) 1 S8-00A-276-A00 INSTRUCTION BOOK(B) 1 S8-00A-277-A00 INSTRUCTION BOOK(C) 13 931196 Printed in Singapore 211, IKENOHATA 1CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111