Akai-ACR-26-MPU-Service-Manual(1) 电路图 维修手册.pdf

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1、PLL SYNTHESIZER STEREO RADIO WITH COMPACT DISC PLAYER DIGITAL 4 SHF3RPT2SCN1PAU BND MOD LOU/ENT RELEASE POWER EJEC T AMS 9 8 7SW PUSH SEL 5 6 REC 0 MUTLOCMON CAR C D/MP3/WMA PLAYER D-AUD D S P E Q DIR MODEL: ACR-26MPU RadioFans.CN 收音机爱 好者资料库 2 CONTENTS Page Disassembly Instructions. 3 Disassembly Di

2、agram. 4 Operation Check. 5 Block Diagram . 6 Alignment Locations . 7 Alignment Procedures . 8 Printed Circuit Boards. 9 Exploded Views (Panel) .15 Exploded View Parts Lists (Panel) .16 Exploded Views (Cabinet).17 Exploded View Parts Lists (Cabinet).18 Exploded Views (Deck) .19 Exploded View Parts L

3、ists (Deck) .20 Schematic Diagram .22 Electrical Parts List.25 Specifications.31 RadioFans.CN 收音机爱 好者资料库 3 DISASSEMBLY INSTRUCTIONS 1. Using the unlock 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 t

4、he 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 Cabinet. 4. Take out the Front Panel and the Ring. Remove two screws (C) from on the front side of the Base. 5. Remove two screws (D) from on the right si

5、de of the side bracket. Remove two screws (E) from on the left side of the side bracket. 6. Remove two screws (F) from under the deck front bracket then remove the Deck Front Bracket. Remove two screws (G) from under the deck rear bracket then remove the Deck Rear Bracket and the Deck. 7. Remove the

6、 screw (H) from on the right side of the side bracket then remove the IC Bracket. 8. Remove two screws (I) from on the left side of the heat sink then remove the Spring Sheet. 9. Remove five screws (J) from on the left side of the heat sink then remove the Heat Sink. 10. Remove the screw (K) from on

7、 the back of the side bracket and remove two screws (L) from on the main board then remove the Heat Sink (7809/DB435). 11. Remove two screws (M) from on the back of the side bracket then remove Wire Clip. 12. Remove two screws (N) from each side of the base then remove the Base. 13. Remove three scr

8、ews (O) from under the main board then remove the Side Bracket 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 LW FM MW LW MW FM Stereo 98.1 MHz (65, 108 MHz) 1000 kHz (522, 1620 kH

9、z) 200 kHz (144, 288 kHz) 1 mV 5 mV 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/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

10、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-SPEAKER POWER ANTANNA ACC (DV14.4V) GROU

11、ND 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 Alignment Using FM Signal Generator N

12、ote: 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 AdjustmentRemarks Stereo Separation Signal Generator to antenna receptacle 98.1 MHz Int. 1 kHz Dev. 75 kHz L+R

13、= 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 receptacle 98.1 MHz Mod. 1kHz Dev 75

14、kHz 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 CD SERVO BOARD BOTTOM VIEW 15 EXPLO

15、DED VIEW PANEL 16 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 35 36 Lens; (S. OPC0000) DX3.59.16 T. Panel (S. OPC2001) W/D Panel Bottom Release Key (S. OP2001) RE Knob Sprin

16、g Power Key (L-Up) (S. OP2001) PWR Knob Adaptor Encode Knob (Electron Plate) Rubber Finish Key (S. OP0000) Decorate Ring (Electron Plate) Eject R Key (L-Up) (S. OP2001) EJ Knob Adaptor BND Key (L-Up) (S. OP2001) BND Knob Adaptor USB Cover (Black) USB/Eject/LOU/ENT (S. OP2001) PWR Back Light CD B.L M

17、UT/LOC/MON Key (L-Up) (S. OPC0000) MUT Knob Back Light 1PAU/3RPT/5 Key (L-Up) (S. OP0000) 2SCN/4SHF/6 Key (L-Up) (S. OP0000) PAU Knob Back Light 8 TUNE SKIP Key (L-Up) (S. OP0000) 9TUNE SKIP/DISP/EQ Key (L-Up) (S. OP0000) EQ Knob Back Light MOD Key (Crystal/Blue PMS285C) AMS Key (Crystal/Blue PMS285

18、C) MOD Knob Adaptor MOD Knob Back Light Key Board CD115 Rotary Encoder VOL LCD Bracket Real (E) CD100USB LCD TN COLOR BLACK MASK PIN84X22 CD1007 B. Light /White Screw 2X8 BA/ST Black 53-C2520-328 51-C2521-31Y 51-C2522-00 52-C2535-31Y 36-11852-00 52-C2522-31 52-C2548-00 52-C2534-90E 52-C2543-30 52-C2

19、531-90E 52-C2520-31 52-C2546-00 52-C2521-31 52-C2547-00 52-J2063-00 52-C2532-31Y 52-C2544-00 52-C2545-00 52-C2525-02 52-C2539-00 52-C2526-02 52-C2527-02 52-C2540-00 52-C2528-01 52-C2529-01 52-C2542-00 52-C2536-71B 52-C2537-71B 52-C2530-00 52-C2541-00 11-20050-318 18-00115-00 39-E2004-00 27-10001-01

20、02-01007-09 40-12008-21 17 EXPLODED VIEW CABINET 18 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 Panel Ring /ABS (S. OP20001) Base Real (E) /777 Side Bracket (CD200 Wire

21、) CD MECH. CDM-1684EUK W/O 146A NO BP Heat Sink (For Wire) Top Cabinet Bottom Cabinet (For Wire) Main Fiber Main Board Mounting Box (072) Shade CD Windows Sheet Lock Panel Knob Spring For EJ Panel CD200 Hook Knob Spring For Hook Knob CD200 Deck Front Bracket (CDN200) Deck Rear Bracket FM Cover M. FA

22、E347/P21/P22 East Europe 1 Pack 65-108MHz IC Bracket (7805) Spring Sheet Heat Sink (7809/DB435) Wire Clip 1.0MM Screw 5X18 HH Spring Washer M5 Hexagon Nut M5 Screw 2.6 X 4 BH/MS Screw 2.6 X 5 BH/TAPTITE Screw 2.6 X 6 BH/MS Screw 2.6 X 6 BH/MS Black Screw 2.6 X 8 BH/MS Screw 2.6 X 10 BH/MS Screw M2.6

23、 X 20 PH/MS 51-E2022-30Y 51-E2020-00 61-N0201-00 94-01684-12 61-N0204-00 61-B0105-01 61-B0114-01 35-B0101-00 11-20050-089 61-07211-03 81-69005-02 43-A3103-00 52-E2041-00 36-E2001-00 52-E2040-01 36-E2002-00 39-N0201-00 39-B0101-01 39-D0507-00 29-00347-03 39-B0115-00 39-E2003-00 39-B0118-00 39-B1415-0

24、0 40-05018-04 35-50001-00 35-40005-00 40-02604-01 40-02605-03 40-02606-01 40-12606-01 40-02608-01 40-02610-01 40-02620-00 19 EXPLODED VIEW (DECK) 20 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

25、32 33 34 35 36 37 38 39 SENSOR SENSOR PCB 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

26、 (D) GEAR LOAD (B) GEAR LOAD (A) PIN LOAD B/K 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) P

27、OM (F20-03) POM (F20-03) CR-WRT POM (F20-03) 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

28、SEEC T1.0 2 1 12 1 1 1 2 2 1 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 1 4 1 3 1 1 21 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

29、 CLAMPER TURN TABLE BASE PU PIN SIDE (A) SCREW 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

30、S/P BASE POM (F20-03) SECC T1.0 SUS304WPB ABS 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

31、/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 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 22 SCHEMATIC DIAGRAM (MAIN BOARD) 23 SCHEMATIC DIAGRAM (KEY BOARD) nRESET CDP_nRST MMC_CLK SCLK_BM0 LRCK_BM1 ENC_MCLK DSP_DOUT_BM2 DSP_SCKO DSP_LRCK DSP_DOUT

32、ENC_DAI SD_CKE SD_CLK SD_nCS CDP_nRST NOR_nCE TDO nTRST TCK TMS TDI CDP_nRST MMC_CS NOR_nCE nWE nOE SD_CKE SD_CLK nWE SD_nCS MMC_DO MMC_CLK MMC_DI MMC_CS MMC_CD CDP_A0 CDP_nSTB DSP_LRCK DSP_SCKO DSP_DOUT FEEDF FEEDR CDP_ADSW CDP_SI CDP_SCK CDP_SO CDP_INTQ SCLK_BM0 LRCK_BM1 ENC_MCLK nWE nOE SLED_ORG

33、LOAD_START nRESET SCLK_BM0 LRCK_BM1 DSP_DOUT_BM2 ENC_DAI MMC_DO MMC_DI nRESET USB_DETECT TXD_R TXD SENS_O CDP_A0 CDP_nSTB FEEDF CDP_SO CDP_SI CDP_SCK TXD_R TXD RXD RXD nRESET DECK_OPTION CDP_INTQ MMC_CD SLED_ORG USB_DETECT FEEDR SCLK_BM0 LRCK_BM1 SENS_O CD_CE LOAD_START CD_CE RFOK RFOK SENS_IN LDEND

34、_CHK EJEND EJEND CD_LOCK LDEND_CHK CD_LOCK DSP_DOUT_BM2 SVCC VREF SVCC SVCC SVCC SVCC SVCC SVCC VCC SVCC VREF SVCC SVCC VCC AVCC VCCAVCC AVCC VCC VCC 8V VREF 8V 3V8V 8VSVCC3VVCC 8V SVCC USB_5V 760_VDD 760_VDD 760_VDD 760_VDD 760_VDD 760_VDD 760_VDD 760_VDD 760_VDD 760_VDD 760_VDD XVCC 760_VDD 760_VD

35、D760_CORE 760_CORE USB_5V USB_5V 760_VDD 760_CORE 760_VDD 760_VDD 760_VDD 3V 760_VDD XVCC 760_VDD USB_5V 760_VDD 760_VDD 760_VDD SVCC SVCC 760_VDD 760_VDD R49OPEN U7 IP1642L 1 2 3 4 5 6 7 8 9 VIN NC NC RST VO1 VO2 Td PGND1 PGND2 C32 104 R8 10K C53 104 ZD26.2V C49 104 U2 UPD63712 1 2 3 4 5 6 7 8 9 10

36、 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 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 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 LD PD PN AVDD DGND RFOK INTQ

37、 RST A0 STB SCK SD SI DVCC DAVDD ROUT DAGND REGC DAGND LOUT DAVDD XVDD XTAL1 XTAL2 XGND DVDD CID1/FZD CID2/TZD C2D1/RMUTE C2D2/LMUTE C2D3/SHOKD/SBSY LOCK/FR WFCK/MIRR RFCK/HOLD PLCK C16M DGND TX EMPHRAMOVER FLAG DVDD LIMIT XTALEN DGND DIN DOUT SCKIN SCKO LRCKIN LRCK DVDD FD+ FD- TD+ TD- SD+ SD- MD+

38、MD- DGND TESTEN TEST4 TEST3 TEST2 TEST1 TEST0 ADGND EFM ASY ADVDD RFI EQ2 EQ1 RF- RF2- AGCO AGCI RFO ATEST C3T AGND A C B D F E VRFOIN AVDD REFOUT REFC FE- FEO ADCIN TE- TEO TE2 TEC AGND PWMSW C57 104 C15 104 R20 5K1 R79 OPEN R107 18K R99OPEN R126100 SD2EL-23 C1 104 EFM1 1 1 R1182K2 R75 1K R1041K R1

39、0120K C84 104 C65 360pF R59 OPEN C81 104 R5515K EC810uF U4 IP9004 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 1617 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 3334 FWD OPIN1+ OPIN1- OPOUT1 OPIN2+ OPIN2- OPOUT2 MSC GND VCCI VOL- VOL+ VO2- VO2+ VO1- VO1+VO4+ VO4- VO3+ VO3- GND1 BIAS MUTE REGO REB OPOUT3 OPIN3- OPIN3+ OPOUT4 OPIN4- OPIN4+ REV PGNDPGND C11 104 R433R0 R3110K C74 OPEN C91 104 C20 104 R91 33K C83 104 R211K2 C56 33P NPO J3 CON_4P 1 2 3 4 1 2 3 4 R127100 X1 16.9344MHz C3 104 C36 104 C70 104 R464K