Akai-ACR-143-MP-Service-Manual(1) 电路图 维修手册.pdf

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1、SERVICE MANUAL Model: ACR-143MP CD/MP3RECIVER www.akai.ru RadioFans.CN 收音机爱 好者资料库 2 CONTENTS Page Disassembly Instructions. 3 Disassembly Diagram. 4 Operation Check. 5 Block Diagram . 6 Alignment Locations . 7 Alignment Procedures . 8 Printed Circuit Boards. 10 Exploded Views (Panel). 17 Exploded Vi

2、ew Parts Lists (Panel). 18 Exploded Views (Cabinet) . 19 Exploded View Parts Lists (Cabinet) . 20 Exploded Views (Deck). 22 Exploded View Parts Lists (Deck). 23 Schematic Diagram . 25 Electrical Parts List. 28 Specifications. 35 RadioFans.CN 收音机爱 好者资料库 3 DISASSEMBLY INSTRUCTIONS 1. Using the unlock

3、key that came with the unit or a similar tool, unlock the Mounting Box and remove toward the rear of the unit. 2. Remove two screws (A) located on the rear of the top cabinet then remove the Top Cabinet. 3. Remove two screws (B) located on the rear of the bottom cabinet then remove the Bottom Cabine

4、t. 4. Take out the Front Panel and the Ring. Remove the screw (C) from on the front side of the Base. 5. Remove two screws (D) from on the right side of the Rear-right Cabinet. Remove the screw (E) from on the left side of the Rear-right Cabinet and the screw (F) on the right side of the heat sink.

5、6. Remove two screws (G) from under the deck front bracket then remove the Deck Front Bracket. Remove two screws (H) from under the deck rear bracket then remove the Deck Rear Bracket and the Deck. 7. Remove two screws (I) from on the back of the Rear-right Cabinet then remove the Power IC Bracket 8

6、. Remove two screws (J) from on the left side of the heat sink. 9. Remove two screws (K) from on the left side of the heat sink then remove the IC Bracket. 10. Remove the screw (L) from on the back of the side bracket then remove Wire Clip. 11. Remove two screws (M) from each side of the base then r

7、emove the Base. 12. Remove three screws (N) from under the main board then remove the Heat Sink, Rear-right Cabinet and the Main Board. RadioFans.CN 收音机爱 好者资料库 4 DISASSEMBLY DIAGRAM 5 OPERATION CHECK GENERAL SPECIFICATIONS OF SIGNAL Standard frequency Signal output Modulation FM MW FM MW MW FM Stere

8、o 98.1 MHz (65.0, 74.0MHz) (87.5, 107.9 MHz) 1000 kHz (522, 1620 kHz) 1mV 5 mV 400 Hz 30% MOD. 1 kHz 75kHz DEV. 46% for L only or R only pilot level 8% AF output level FM/MW Power source voltage DC 14.0V (Backup voltage is the same as this) AF load impedance 4 ohm pure resistance Balance Center posi

9、tion of level Tone Center position The signal strength read in this section is voltage on the antenna. Test Diagram 4-SPEAKER VTVM DISTORTION METER 2-SPEAKER FRONT SPK. SPK. FL. RL. SPR. MAIN UNIT AM SG VTVM ANTANNA DUMMY FM SG MODULATOR STEREOS MPX ANT FRONT SPK. SPE. FR. RR. 4-SPEAKER SPK. 2-SPEAK

10、ER POWER ANTANNA ACC (DV14.4V) GROUND BACK UP (14.4V) 6 BLOCK DIAGRAM 7 ALIGNMENT LOCATIONS MITSUMI 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 Al

11、ignment Using FM Signal Generator Note: Press the radio power switch to on 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

12、98.1 MHz Int. 1 kHz Dev. 75 kHz L+R = 90 % pilot = 10 % 98.1 MHz VR1 Adjust 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

13、receptacle 98.1 MHz Mod. 1kHz Dev 75kHz 98.1 MHz VR3 Adjust AF to stop station. 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

14、 CD SERVO BOARD BOTTOM VIEW 15 FRONT BOARD TOP VIEW 16 FRONT BOARD BOTTOM VIEW 17 EXPLODED VIEW PANEL 18 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 Lens: (L)(CD)X3.82.25;N/IR W/WMA(S.N1202/B

15、LK) (AKAII ACR-143MP)ROHS T. Panel (F)X3.59.16 N/SW (S.N1202/PMS426C) ROHS Panel Bottom (F) Open Knob (F) (S.N1202/426C) ROHS Release Spring VOL Knob (Electron-Plate -Silver) EQMUT Knob (L-UP)(S.N1202) ROHS LOC/MON Knob (L-UP)(S.N1202) ROHS 1PAU6 Knob (L-UP)(S.N1202) ROHS 8/9 TRK Knob (L-UP)(S.N1202

16、) ROHS Power Knob (S.N1202/426C) ROHS BAND/MENU/ST/LOC/TITEL Knob (L-UP) (S.N1202) ROHS AKAI Logo(S.N0000) Silver Hot Stamp ROHS Decoration (F) W/O USB (S.N1202) ROHS Key Board LCD Cover ROHS LCD CD5002TN NEG Black Mask Color Pin 99X25.3MM ROHS LED B.L QB02002-09 23.5X99 White ROHS Axis Post ROHS Ri

17、ght Side Block ROHS Contact Spring ROHS Left Side Block ROHS E-Ring 1.5X4X0.4MM ROHS Screw 2X8 BA/ST Black ROHS AS/PS Knob (L-UP) (S.N1202) ROHS 7MOD Knob (L-UP)(S.N1202) ROHS RESET Knob (S.N1202) ROHS LING For VOL Knob ROHS 5300-NK7137-89Y 5100-NK7121-711 5100-NK7123-00 5200-NK7126-81Y 3600-065001-

18、00 5200-NK7128-90E 5200-NK7134-81 5200-NK7135-81 5200-NK7136-82 5200-NK7133-81 5200-NK7127-81Y 5200-NK7131-81 5200-0G6240-31 5200-NK7124-80 1121-501030-3208 3900-0E2104-01 2700-500200-110Y 0200-0A1560-09 3400-0-24601-00 5200-0E2128-00 3600-078008-00 5200-0E2129-00 3500-000001-00 4000-012008-21 5200-

19、NK7130-81 5200-NK7132-81 5200-NK7129-80 5200-NK7140-00 19 EXPLODED VIEW CABINET 20 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 Panel Ring (S.N0000) ROHS Base

20、 (F) (MMS+SD) ROHS Rear-right Cabinet W/Spring FOR CD-WIRE ROHS CD MECH. MG205 (205) ROHS (9400-022050-01/9700- 012265-00X1/9700-011190-00X2) Left Cabinet-heat Sink W/Spring ROHS Top Cabinet ROHS Bottom Cabinet ROHS Main Fiber ROHS Main Board Mounting Box ROHS Shade ROHS CD Windows Sheet ROHS Hook S

21、haft ROHS Hook Spring ROHS Hook ROHS Push Out Spring ROHS Panel Pole ROHS B-Light (F) (White) ROHS Front Board Connector Female 20PIN P=2.0MM V-Type East SUN ROHS Eject Key (S. N0000) (L-Up) ROHS Eject Board Right Bracket ROHS Damper Gear Assy /19-24 T/Q ROHS Middle Gear (F) ROHS Left Bracket ROHS D

22、eck Front Bracket ROHS Deck Rear Bracket For CD ROHS M.FAE347/P21/P22 East Furepe 1 Pack 65-108MHJ ROHS Shield Cover (Mitsumi Tuner)(0.045KG) ROHS Wire Clip 1.0MM ROHS Power IC BKT ROHS Screw 5X18 HH ROHS Spring Washer M5 ROHS Hexagon Nut M5 ROHS IC Bracket For Regulntor ROHS Screw 2.6X4 BH/MS ROHS

23、Screw 2.6X5 BH/TAPTITE ROHS 5100-016227-30 5100-0E2124-00 6100-300003-002 9400-002050-01 6100-300004-003 6100-300001-000 6100-300002-000 3500-300001-000 1111-500041-020C 6100-300005-000 8100-069005-03 4300-0A3103-00 3400-0D2101-00 3600-0E2101-00 5200-0E2127-00 3600-0E2102-00 5200-0E2126-00 5200-0W20

24、49-00W 1111-500030-3401 2500-0F0217-20A 5200-NK7138-31 1111-500030-3401 3900-0E2101-01 9300-012246-01S 5200-0E2130-00 3900-0E2102-01 3910-300001-000 3900-300002-000 2900-000347-03 3900-0W2001-00 3900-0B1415-00 3900-300006-000 4000-005018-04 3500-050001-00 3500-040005-00 3900-300007-000 4000-002604-0

25、1 4000-002605-03 21 Ref. No Description RS Part No. Mfrs Part No. 40 41 42 43 44 45 46 Screw 2X3 CH/MS Black ROHS Screw 2.6X6 BH/MS ROHS Screw 2.6X6 PH/MS BLACK ROHS Screw 2.6X8 BH/MS ROHS Screw M2.6X20 PH/MS ROHS Screw 2X4 BH/ST Black ROHS Screw 2X6 PA/ST (Black) ROHS 4000-012003-09H 4000-002606-01

26、 4000-002606-20 4000-002608-01 4000-002620-00 4000-012004-21 4000-012006-20 22 EXPLODED VIEW (DECK) 23 EXPLODED VIEW PARTS LIST (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 PCB SCRE

27、W 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 LOAD B/K

28、GEAR MOTOR GEAR WORM SERVO 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 (F20-03) P

29、OM (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 1 1 1

30、 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 4 1 3 1 1 24 EXPLODED VIEW PARTS LIST - CONTINUED (DECK) 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

31、 PIN SIDE (B) DAMPER S/P BASE MOTOR GEAR 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

32、G/F 20% POM (F20-03) SUM24L-NI (PLATE) 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

33、.5*18 PE SW-111 PE SUS304WPB 1 1 1 1 1 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 25 SCHEMATIC DIAGRAM (MAIN BOARD) 26 SCHEMATIC DIAGRAM (KEY BOARD) 27 SCHEMATIC DIAGRAM (CD SERVO BOARD) 28 ELECTRICAL PARTS LIST Ref. No. Part No. Description Qty PC BOARD ASSY, MAIN BOARD D630,639,625

34、0200-004148-02 DIODE SMD RLS4148 LL-34 ROHM ROHS 3 IC601 0300-007313-01 IC SC-7313 (SILAN) ROHS 1 IC602 0300-0F8847-151 CPU RF8847-151 MP3+WMA+TC+RUSSION FONT 1 R721/2(RCA) 0700-063102-00 RES SMD 1K 5% 1/10W 0603 ROHS 2 R704,709,710,715 0700-063273-00 RES SMD 27K 5% 1/10W 0603 ROHS 4 R303/4 0700-063

35、332-00 RES SMD 3.3K 5% 1/10W 0603 ROHS 2 1111-500041-020 C CD5000 (X3.90 RUSSIA YMB 18.2X152X1.6 1 IC804 0100-007805-00 IC,78L05 TO-92 ROHS 1 IC601 0300-007388-00 IC TDA7388 (4x40W) ST Y ROHS 1 C707/8(RCA) 0600-050105-03 E.CAP 1uF 50V 20% 45MM ROHS 2 RESET 1600-001138-00 TACT SWITCH FOR DVD248 RESET

36、 ROHS1 RCA 2000-020360-08 1 WIRE ISO 2500-0F2002-00 16P ISO(F) CDDE3002Y(EIA) ROHS 1 TUNER 2900-000347-03 M.FAE347/P21/P22 EAST FUREPE 1 PACK 65-108MHJ ROHS 1 ANT 3200-083210-01 ANT SOCKET W/GND 3MM L=210MM ROHS 1 Q802,809,603,104,302,304,DQ 2 0100-000812-00F 2SA812-G(ROHS) 7 Q105107,Q601,Q801,80380

37、6 ,808,811,301,303,701,DQ1 0100-003875-07F TR NPN KTC3875-GR SOT-23 ROHS 15 D601,806,632,808,CPU TO 0200-004148-02 DIODE SMD RLS4148 LL-34 ROHM ROHS 5 ZD302 0200-050033-54 ZENER DIODE SMD 3.3V 0.5W 2% LL-34 ROHS 1 ZD802 0200-050036-02 ZENER DIODE SMD 3.6V 0.5W 2% LL-34 ROHS 1 ZD801 0200-050082-01 ZE

38、NER DIODE SMD 8.2V 0.5W LL-34 ROHS1 ZD301 0200-050091-03 ZENER DIODE SMD 9.1V 0.5W 2% LL-34 ROHS 1 ZD803 0200-050100-02 ZENER DIODE SMD 10V 0.5W 5% LL-34 ROHS 1 IC701,702 0300-004558-26S IC UTC4558 SOP (SILAN) ROHS 2 IC101 0300-009257-00H IC SC9257 ROHS 1 C805808 0500-003102-10 CER.CAP SMD 1000PF 50

39、V 10% 0805 Y5P ROHS 4 C122,610,116,117,611,801804 0500-003105-10 CER.CAP SMD 1uF 16V +80/-20% Y5V 0805 ROHS 9 C601 0500-003270-05S CER.CAP SMD 27PF 50V 5% NPO 0805 ROHS 1 C602 0500-003330-05S CER.CAP SMD 33PF 50V 5% NPO 0805 ROHS 1 C817 0500-063101-00 CER.CAP SMD 100PF 50V 5% NPO 0603 ROHS 1 C603,604,140 0500-0631