Akai-ACR-17-W-Service-Manual(1) 电路图 维修手册.pdf
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1、 MOBILE AUDIO SYSTEM ST EQ CLAS LOUD TRK RPTDISC PUSH SELECT EQUALIZER BAND POWER LOU 6 3 5 2 4 1 PAU MODE LOC IR DSP AUDIO ADJUST AS/PS AUX IN MO/ST S C N RP T 3 i n 1 C D C A S S E T T E R E C E IV E R RN D CD O P EN/CL OS E /E J PO WE R TAPE OPE N/C LOSE TUNE/TRACK SKIP C D C D MU TE MODEL: AKAI
2、ACR-17W 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.9 Wiring Diagram.18 Exploded Views (Panel) .19 Exploded View Parts Lists (Panel) .20 Exploded View
3、s (Cabinet).21 Exploded View Parts Lists (Cabinet).22 Exploded View (Deck) .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 the screw (A) located on the rear of the top cabinet then re
4、move the Top Cabinet. 2. Remove four screws (B) located on the CD bracket and remove two screws (C) from the Heat Sink of the left side. Remove four screws (D) from under the CD bracket then remove the CD Deck and the CD Bracket. 3. Remove four screws (E) located on the tape bracket and remove four
5、screws (F) from under the tape bracket then remove the Tape Bracket. 4. Remove two screws (G) from each side of the panel then remove two the Tube. 5. Take out the Panel Slide Way (L/R), The Ring and the Panel. Remove two screws (H) from the Base of the front and remove two screws (I) from each side
6、 of the Base then remove the Base. 6. Remove two screws (J) from on the front bracket then remove the Front Bracket. 7. Remove two screws (K) and two screws (L) from the Heat Sink of the left side then remove the IC Bracket (7809) and the IC Bracket 8568. 8. Remove the screw (M) from the heat sink t
7、hen remove the Heat Sink. 9. Remove two screws (N) from the Slide Bracket then remove the Slide Gear and the Slider Bracket. Remove two screws (O) from the “U” Cabinet then remove the Bracket Slide Way. 10. Remove the screw (P) from the “U” cabinet of the left side and remove two screws (Q) then rem
8、ove the Gear Holder. 11. Remove two screws (R) from the “U” Cabinet then remove the Gear Bracket ASSY. 12. Remove the screw (S) and the screw (T) from the Rear Bracket then remove the Antenna Clip and the Antenna Socket J-02-03 Signal. Hole. 13. Remove the screw (U) and two screws (V) from the Rear
9、Bracket then remove the CDC FIX Bracket. 14. Remove two screws (W) from the “U” Bracket of the left side then remove the Rear Bracket and the “U” Cabinet. 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 M
10、W 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 pilot 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 o
11、hm 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 ALIGNMENT LOCATIONS FM/MW/LW TUNER 8 ALIGNMENT PROCEDURES FM ADJUSTMENT Equipment Required ? ? AM IF/RF signal generator ? ? Sol
12、id-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 the radio. Signal generator output must be kept as low as possible to avoid overload and clipping. Step Generator Coupling G
13、enerator 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 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 outp
14、ut 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 station. Note: The tuner module is well-adjust and adjustment is not recommended. 9 PRINTED CIRCUIT BOARDS MAIN BOARD TOP VIEW 1
15、0 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 BOTTOM VIEW 17 FRONT BOARD 18 WIRING DIAGRAM 19 EXPLODED VIEW PANEL 20 EXPLODED VIEW PARTS LIST PANEL Ref. No. Description RS Part
16、 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 Lens: RM (S. OPC0000) T. Panel W/CDC (S. OPC0000) Bottom Panel /777 Panel Bracket ASSY VOL Knob (S. OPC0000) Volume Knob Adaptor/Blue Volume Back-Light/Blue Right Back-Light White Trim Knob (
17、L/R) Blue Up Left Decoration E-Silver Up Right Decoration E-Silver Down Decoration (Elect RO Silver) Open/1-6/LOC/AS/PS (L-Up) S.0000 Power Knob (L-Up) (S. OPC0000) EQ Knob (Crystal/PUMRED 198C#) TUNE/SKIP/BAND/MODE/MO/ST (L-Up) Open/Mute/LOU/DSP (L-Up) S.0000 EQ Adaptor Sponge Middle Back Light Lef
18、t Back Light White CD Jack Bracket Band Light Cover Sensor Holder Key Board CD115 Rotate Encoder VOL. LCD Cover Color LCD NEG CD138X3.4 LCD REFLECT Paper LCD Back Light Screw 2X8 BH/ST Screw 2X3 CH/MS Black Screw 2.6X8 BH/ST Black Screw 2.6X10 BH/ST Black 53-13849-31 51-13821-31 51-13822-00 61-13811
19、-00 52-13829-31 52-13836-70 52-13839-70 52-13843-01 52-13838-70 52-13831-90E 52-13832-90E 52-13830-90E 52-13827-31 52-13825-31 52-13837-51R 52-13826-31 52-13828-32 81-13801-00 52-13842-00 52-13841-01 52-13834-00 52-13835-00 52-13833-00 12-01380-305 18-00115-00 39-13806-00 27-01380-01Y 44-13804-00 52
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