Akai-ACR-18-H-Service-Manual(1) 电路图 维修手册.pdf

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1、MOBILE AUDIO SYSTEM EQ POWER BAND PUSH SELEC T OPEN LOUDSW LOC AS/PS AUX IN IR MO/ST DSP MODE AUDIO 3 i n 1 CD CA S S E T T E R E CE IV E R ADJUST TUNE 1PAU23456SC NRPTRNDC DC D TRAC K SKIP LOUD ST EQRPTDISCCLAS MODEL: AKAI ACR-18H RadioFans.CN 收音机爱 好者资料库 2 CONTENTS Page Disassembly Instructions.3 D

2、isassembly Diagram.4 Operation Check.5 Block Diagram .6 Alignment Locations .7 Alignment Procedures .8 Printed Circuit Boards.9 Wiring Diagram.18 Exploded Views (Panel) .19 Exploded View Parts Lists (Panel) .20 Exploded Views (Cabinet).21 Exploded View Parts Lists (Cabinet).22 Exploded View (Deck) .

3、24 Exploded View Parts List (Deck).25 Schematic Diagram .27 Electrical Parts List.30 Specifications.37 RadioFans.CN 收音机爱 好者资料库 3 DISASSEMBLY INSTRUCTIONS 1. Remove two screws (A) located on the rear of the top cover then remove the Top Cover 2. Remove two screws (B) located on the rear of the bottom

4、 cover then remove the Bottom Cover. 3. Remove two screws (C) located front the base. Remove two screws (D) from the rear cabinet and remove two screws (E) from the CD bracket then remove the CD Deck and the CD Bracket. 4. Remove two screws (F) from the cassette deck bracket and remove two screws (G

5、) from the rear cabinet. Remove two screws (H) from the CASS front bracket then remove the Cass Front Bracket. Remove two screws (I) from the CASS rear bracket then remove the Cassette Deck and the Cass Rear Bracket. 5. Take out the Panel. Remove four screws (J) from each side of the Base and remove

6、 two screws (K) from base the front then remove the Base. 6. Remove two screws (L) from the Left Cabinet then remove the Left Cabinet. 7. Remove two screws (M) from the Heat Sink and remove two screws (N) from the Rear Cabinet of the left side then remove the Heat Sink and the IC 8571 Bracket. 8. Re

7、move the screw (O) and remove the Antenna Socket J-020-03 SINGL. Hole. 9. Remove the screw (P) and two screws (Q) from the rear cabinet of the back then remove the IC7809 Bracket. 10. Remove the screw (R) from under the main board then remove the Main Board and the Rear Cabinet. RadioFans.CN 收音机爱 好者

8、资料库 4 DISASSEMBLY DIAGRAM 5 OPERATION CHECK GENERAL SPECIFICATIONS OF SIGNAL Standard frequency Signal output Modulation FM MW LW FM MW LW MW FM Stereo 98.1 MHz (87.5, 108 MHz) 1000 kHz (522, 1620 kHz) 200 kHz (144, 288 kHz) 1mV 5mV 5mV 400 Hz 30% MOD. 1 kHz 75 kHz DEV. 90% for L only or R only pilo

9、t level 10% AF output level FM/MW/LW Power source voltage DC 14.0V (Backup voltage is the same as this) AF load impedance 4 ohm pure resistance Balance Center position of level Tone Center position The signal strength read in this section is voltage on the antenna. Test Diagram 6 BLOCK DIAGRAM 7 ALI

10、GNMENT LOCATIONS FM/MW/LW TUNER 8 ALIGNMENT PROCEDURES FM ADJUSTMENT Equipment Required ? ? AM IF/RF signal generator ? ? Solid-state voltmeter (SSVM) ? ? Regulated DC power supply ? ? 2-CH voltmeter ? ? Distortion meter FM Alignment Using FM Signal Generator Note: Press the radio power switch to on

11、 the radio. Signal generator output must be kept as low as possible to avoid overload and clipping. Step Generator Coupling Generator Display Setting Adjustment Remarks Stereo Separation Signal Generator to antenna receptacle 98.1 MHz Int. 1 kHz Dev. 75 kHz L+R = 90 % pilot = 10 % 98.1 MHz VR1 Adjus

12、t AF output power at maximum separating more than 30 dB FM SNC Adjustment 98.1 MHz Dev. 75 kHz L+R=90 % Int. 1 kHz 60dBV output 98.1 MHz 40 dB 98.1 MHz VR2 Stereo Separation 25 dB (5 dB) STOP SENS. Signal Generator To antenna receptacle 98.1 MHz Mod. 1kHz Dev 75kHz 98.1 MHz VR3 Adjust AF to stop sta

13、tion. Note: The tuner module is well-adjust and adjustment is not recommended. 9 PRINTED CIRCUIT BOARDS MAIN BOARD TOP VIEW 10 MAIN BOARD BOTTOM VIEW 11 KEY BOARD TOP VIEW 12 KEY BOARD BOTTOM VIEW 13 CD SERVO BOARD TOP VIEW 14 CD SERVO BOARD BOTTOM VIEW 15 REMOTE BOARD TOP VIEW 16 REMOTE BOARD BOTTO

14、M VIEW 17 FRONT BOARD 18 WIRING DIAGRAM 19 EXPLODED VIEW PANEL 20 EXPLODED VIEW PARTS LIST PANEL Ref. No. Description RS Part No. Mfrs Part No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Lens: (S. PMS8180C#) W/RM/CDC/SW Top Panel (S. OPC0201) W/O Bra

15、nd Bottom Panel /777 LOUD/SW (E-Silver) LOC/AS/PS (L-Up) (S. OPC0201) Sponge (LOC) Black DSP/MO/ST (L-Up) (S. OPC0201) Right Back Light VOL Knob (S. OPC0201) TUNE/SKIP (L/R) (L-Up) (S. OPC0201) Sponge (Up) Black Ring Trim Light (I) Ring Trim Light (II) Left Back Light Spray White Power Knob (L-Up) (

16、S. OPC0201) Open Knob (L-Up) (S. OPC0201) “Open” Spring BAND (L-Up) (S. OPC0201) 16 Knob (E-Silver) Middle Back Light Spray White EQ Knob (L-Up) (S. OPC0201) MODE Knob (L-Up) (S. OPC0201) Left Trim (S. OPC0201) Right Trim (S. OPC0201) Key Board CD115 Rotate Encoder VOL. LCD Cover Spray Black LCD Col

17、or NEG CD148X3.4 LCD Back Light Spray White FIX Plate Left Panel Bracket (Spray Black) Right Panel Bracket (Spray Black) Screw 2.6X10 BH/ST Black Screw 2X8 BA/ST Black 53-C4853-12C 51-C4821-82Y 51-C4822-00 52-C4824-91E 52-C2825-81 81-C4803-00 52-C2826-81 52-C4852-00 52-C4841-81 52-C4831-81 81-C4802-

18、00 52-C4849-00 52-C4850-00 52-C4848-01 52-C4828-81 52-C4827-81 36-40205-00 52-C4829-81 52-C4830-90E 52-C4851-01 52-C4833-81 52-C4832-81 52-C4835-80 52-C4836-80 12-01480-305 18-00115-00 39-C4802-00 27-01480-01Y 52-C4847-02 52-C4853-00 39-C4804-00 39-C4803-00 40-12610-01 40-12008-21 21 EXPLODED VIEW C

19、ABINET 22 EXPLODED VIEW PARTS LIST CABINET Ref. No. Description RS Part No. Mfrs Part No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Panel Base (S. OPC0201) 777 Top Cover Bottom Cover Bare MECH. MDAJ03B/TR2 W/F-36 (MCI5ULCKNZ/AP-422

20、6) MPCB Fiber 0.5MM Main Board Rear Cabinet Heat Sink Left Cabinet Spring Knob Release Spring Right Bracket ASSY (Spray Black) Gear (I) Left Bracket ASSY (Spray Black) CD Back Light CD Eject Knob (L-Up) (S. OPC0201) Front Board Hook Ejector Spring Hook Shaft Speaker 80UH 0.25W 4.6X23MM Speaker FIX P

21、late Cass Door Tape Door Spring Shade CD Windows Sheet Cassette Deck Bracket CD Deck Bracket Cassette Eject Button Eject Lever (A/R) 0.8MM FF Button REW Button Cass Front Bracket (II) Cass Rear Bracket (I) LA1787 FM/AM TUNER (CET-7000USA) 8P DIN Socket SKDS-08-02 IC 8571 Bracket 1.0MM IC7809 Bracket

22、 51-C2823-80 61-C4803-00 61-C4804-00 94-01201-03 94-00036-10W 35-C4802-00 12-01480-055 61-C4802-00 61-C4801-00 39-C4801-00 52-C4842-00 36-00102-00 39-C4808-00 52-C4843-00 39-C4807-00 52-C4846-00 52-C4843-31 12-01480-355 52-C4845-00 36-44158-00 34-00101-00 14-04623-00 39-C4812-00 66-C4801-00 36-13812

23、-00 81-69005-02 43-A3101-00 39-C4805-00 39-C4806-00 52-C4838-00 39-07626-00 52-C4840-00 52-C4839-00 39-C4810-00 39-C4811-00 29-17870-00 25-D0802-00 39-85711-01 39-C4809-00 23 Ref. No. Description RS Part No. Mfrs Part No. 41 42 43 44 45 46 47 48 49 50 51 52 22PIN Socket CD1421 (JENSEN) Antenna Socke

24、t J-020-03 Signal. Hole Screw 2 X 3 CH/MS Black Screw 2 X 6 BH/ST Screw 2.6 X 3 PH/MS Screw 2.6 X 3 PH/TAPTITE Screw 2.6X4 BH/MS Screw 2.6 X 4 PH/TAPTITE Screw 2.6 X 6 BH/MS Screw 2.6 X 7 BH/MS Screw 3 X 8 BH/ST Screw 3 X 18 PH/MS 25-M1421-22 39-00017-02 40-12003-09H 40-12006-01 40-02603-00 40-02604

25、-03 40-02604-01 40-02604-03 40-02606-01 40-02607-00 40-03008-02 40-03018-00 24 EXPLODED VIEW (CD DECK) 25 EXPLODED VIEW PARTS LIST (CD DECK) Ref. No. Description Parts No. Qty 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 SENSOR SENSOR PC

26、B SCREW COVER-UPPER LEVER DISC GUIDE UP BUSHING ROLLER ROLLER DISC SHAFT ROLLER PIN ROLLER PVC CAP B/K ROLLER PIN PULLEY PIN IDLE GEAR IDLE GEAR PULLEY BELT PULLEY GEAR ROLLEY LOCKER (L) CAM (L) S/P CAM (L) S/P RACK CAM (R) LOCKER GEAR RACK GEAR LOAD GEAR LOAD (D) GEAR LOAD (B) GEAR LOAD (A) PIN LOA

27、D B/K GEAR MOTOR GEAR WORM GERVO PCB ASSY SPECIAL SCREW S/P RO (L) SUPPORT DAMPER S/P RO CHASSIS MAIN ST-23G FR CA/H 0” TT 2*3 SECC T1.0 POM (F20-03) POM (F20-03) POM (F20-03) SLICON SUS 303 SUM24L-NI (PLATE) PVC SECC T1.0 SUM24L-NI (PLATE) SUM24L-NI (PLATE) POM (F20-03) POM (F20-03) CR-WRT POM (F20

28、-03) POM (F20-03) POM (F20-03) SUS304WPB SUS304WPB POM (F20-03) POM (F20-03) POM (F20-03) POM (F20-03) POM (F20-03) POM (F20-03) POM (F20-03) SUM24L-NI (PLATE) SECC T1.0 FF-050SH-11190 POM (F20-03) GLASS EPOXY 1.2T P/H TTS 2*2 SUS304WPB POM (F20-03) SUS304WPB SEEC T1.0 2 1 12 1 1 1 2 2 1 1 2 1 1 1 1

29、 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 4 1 3 1 1 26 Ref. No. Description Parts No. Qty 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 CLAMP DISC HOLD CLAMPER S/P CLAMPER TURN TABLE BASE PU PIN SIDE (A) SCREW PIN SIDE (B) DAMPER S/P BASE MOTOR GE

30、AR PU (B) GEAR PU (A) SCREW MOTOR HOUSING GEAR SHAFT PU SCREW 4P CONT WIRE SPRING TENSION GEAR PU LEAD SCREW SWITCH SCREW PICK UP FPC WIRE SPRING PU FIBER PAPER S/P CAM TRANSIT SCREW INSULATOR COVER SWITCH WASHER PE S/P BASE POM (F20-03) SECC T1.0 SUS304WPB ABS G/F 20% POM (F20-03) SUM24L-NI (PLATE)

31、 CA/H 0” M/S 1.7*2.5 SUM24L-NI(PLATE) BUTHYL SUS304WPB RF-400CA-12265 HYTRELL 5526 POM (F20-03) CA/H 0” M/S 2*2 FF-050SH-11190 POM (F20-03) KNN11 (PCD18) R/H (W/W) TTB2*5 1007 #28 SUS304WPB POM (F20-03) BSBM SW-110 B/H TTB1.7*8 SF-C99 POLY AMIDE SUS T0.2 0.55 4.5*18 PE SW-111 PE SUS304WPB 1 1 1 1 1

32、2 2 2 1 2 1 1 1 6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 2 2 27 SCHEMATIC DIAGRAM (MAIN BOARD) 28 SCHEMATIC DIAGRAM (CD SERVO BOARD) 29 SCHEMATIC DIAGRAM (REMOTE BOARD) 30 ELECTRICAL PARTS LIST Ref. No. Part No. Description Qty PC BOARD ASSY, MAIN BOARD Q806,814/7 Q801,815 Q809,811 Q101/5/6,302,3214,40

33、4,501,8025/8, 810/2/3/6,881 Q102/3 Q891/2 IC804 Q041,402,807 Q301 ZD4013 D803 D401,501,801/2 D402/5,410/1/7 D804 L041/2 ZD501 ZD802 ZD804 ZD801/5 ZD803 ZD101 IC501 IC301 IC502 IC402 IC802 IC803 IC801 IC401 X401 C891 C5147,514A17A C892 C103 C111 C109 C121 C403/710,51821 C114/5,304/5 J101/6 01-00435-0

34、0S 01-00812-00 01-01240-00 01-01623-00 01-02785-00C 01-04672-00 01-07805-00 01-08050-03 01-08550-03 02-00062-07 02-04001-00 02-04148-00 02-04148-02 02-05401-00 02-30503-60D 02-50051-00 02-50056-00 02-50075-00 02-50091-00 02-50100-00 02-50120-00 03-02313-00 03-03161-00 03-04052-03 03-07035-00 03-0780

35、9-00 03-07818-00 03-08571-00 03-17802-401 04-00045-00 05-00470-302 05-03105-10M 05-04683-00 05-16225-00 05-63101-00 05-63102-01 07-63103-01 05-63104-01 05-63153-01 05-63220-00 TR. BD435 NPN TO-126 SAMSUNG TR. 2SA812 TRANSISTOR B1240 CHIP TR. C1623 “NEC” TRANSISTOR 2SC2785 “NEC” TR. SMD 2SC4672Q IC-R

36、EGULATOR 78L05 “NEC” TR. 8050C TO-92-B TR. 8550C TO-92-B E.S.D. DIODE NNCD6.2G (5PIN) DIODE IN4001 DIODE 1N-4148 DIO CHIP RLS4148 1206 ROHM DIODE IN5401 P. LAMP 3V6MA 3X6MM (TAI WAH) ZENER DIODE 5.1V 0.5W ZENER DIODE 5.6V 0.5W ZENER DIODE 7.5V 0.5W ZENER DIODE 9.1V 0.5W ZENER DIODE 10V 0.5W ZENER DI

37、ODE 12V 0.5W I.C. PT2313L I.C. LA-3161 IC CHIP BU4052BCF ROHM IC KIA7035P IC 7809 (TO-220) REGULATOR LC-78L18 IC TDA8571J (4X40W) IC UPD178024 GC-215-8ET CRYSTAL 4.5MHz (HC 18U) CAP CER 47P 3KV 5% CHIP CAP KC20E1C105M-TS METALIZED CAP 0.068F 63V 5% TAN CAP 2.2F 16V CHIP 100PF 5% NPO 0603 SMT CHIP 10

38、00PF 10% X7R 0603 SMT CHIP 0.01F 10% X7R 0603 SMT CHIP 0.1F 10% X7R 0603 SMT CHIP 0.015F 10% X7R 0603 SMT CHIP CAP 22PF 5% NPO 0603 SMT 3 2 2 20 2 2 1 3 1 3 1 4 5 1 2 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 8 1 1 1 1 1 9 4 2 31 ELECTRICAL PARTS LIST - CONTINUED Ref. No. Part No. Description Qty C308/9 C101/2/4/6,120,401,811/6 C507/8 C405/6 C8058 C116/7 C303,402/4,412/4,506,812 C306,311,321,503,525/6,815