Akai ACR-18H Service Manual Download

Page: 37 / 37

SPECIFICATIONS

T. H. D

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Less than 0.35%

Signal to Noise Radio

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More than 55 dB

Channel Separation

················································································································

More than 50 dB

Frequency Response

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20Hz - 20kHz (CD Player)

Frequency Response

··························································································

50Hz - 8kHz (Cassette Player)

Stereo separating (FM)

·············································································································

30 dB (at 1kHz)

Signal to noise ratio (FM)

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Better than 50 dB

Output power

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4 X 40W

Speaker output impedance

4 To 8 ohm

Power source

DC 12V, Negative ground.

Frequency range

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FM 87.5 - 108 MHz

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MW 522 - 1620 kHz

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LW 144 - 288 kHz

Sensitivity

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FM 3 µV (S/N=30dB)

MW 32 dBµ (S/N=20 dB)

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LW 35 dBµ (S/N=20 dB)

Specifications are subject to change without notice.

Summary of Contents for ACR-18H

Page 1: ...OW ER BAND PUSH SELEC T OP EN LOUD SW LOC AS PS AUXIN IR M O ST DSP M O D E AUDIO 3 i n 1 CD CA S S E T T E R E CE IV E R ADJUST TUNE 1PAU 2 3 4 5 6 SC N RP T RN D C D C D TRAC K SKIP LOUD ST EQ RPT DISC CLAS MODEL AKAI ACR 18H ...

Page 2: ...tions 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 24 Exploded View Parts List Deck 25 Schematic Diagram 27 Electrical Parts List 30 Specifications 37 ...

Page 3: ...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 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 Re...

Page 4: ...4 DISASSEMBLY DIAGRAM ...

Page 5: ...Hz 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 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 ...

Page 6: ...6 BLOCK DIAGRAM ...

Page 7: ...7 ALIGNMENT LOCATIONS FM MW LW TUNER ...

Page 8: ...ep 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 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 60dBµV output 98 1 MHz 40 dBµ 98 1 MHz VR2 Stereo Separation 25 dB 5 dB STOP SENS Signal Generator To...

Page 9: ...9 PRINTED CIRCUIT BOARDS MAIN BOARD TOP VIEW ...

Page 10: ...10 MAIN BOARD BOTTOM VIEW ...

Page 11: ...11 KEY BOARD TOP VIEW ...

Page 12: ...12 KEY BOARD BOTTOM VIEW ...

Page 13: ...13 CD SERVO BOARD TOP VIEW ...

Page 14: ...14 CD SERVO BOARD BOTTOM VIEW ...

Page 15: ...15 REMOTE BOARD TOP VIEW ...

Page 16: ...16 REMOTE BOARD BOTTOM VIEW ...

Page 17: ...17 FRONT BOARD ...

Page 18: ...18 WIRING DIAGRAM ...

Page 19: ...19 EXPLODED VIEW PANEL ...

Page 20: ... 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 Color NEG CD148X3 4 LCD Back Light Spray White FIX Plate Left Panel Bracket Spray Black Right Panel Bracket Spray Black Screw Ø2 6X10 BH ST Black Screw Ø2X8 BA ST Black 53 C4853 12C 51 C4821 82Y 51 C4822 00 52 C4...

Page 21: ...21 EXPLODED VIEW CABINET ...

Page 22: ...r FIX Plate 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 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...

Page 23: ...2 X 3 CH MS Black Screw Ø2 X 6 BH ST Screw Ø2 6 X 3 PH MS Screw Ø2 6 X 3 PH TAPTITE Screw Ø2 6X4 BH MS Screw Ø2 6 X 4 PH TAPTITE Screw Ø2 6 X 6 BH MS Screw Ø2 6 X 7 BH MS Screw Ø3 X 8 BH ST Screw Ø3 X 18 PH MS 25 M1421 22 39 00017 02 40 12003 09H 40 12006 01 40 02603 00 40 02604 03 40 02604 01 40 02604 03 40 02606 01 40 02607 00 40 03008 02 40 03018 00 ...

Page 24: ...24 EXPLODED VIEW CD DECK ...

Page 25: ... LOAD D GEAR LOAD B GEAR LOAD A PIN LOAD 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 03 POM F20 03 POM F20 03 SUS304WPB SUS304WPB POM F20 03 POM F20 03 POM F20 03 PO...

Page 26: ... 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 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...

Page 27: ...27 SCHEMATIC DIAGRAM MAIN BOARD ...

Page 28: ...28 SCHEMATIC DIAGRAM CD SERVO BOARD ...

Page 29: ...29 SCHEMATIC DIAGRAM REMOTE BOARD ...

Page 30: ... 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 REGULATOR 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 Ø3X6MM TAI WAH ZENER DIO...

Page 31: ... 63000 00 07 63101 00 07 63102 00 07 63103 00 07 63104 00 07 63105 00 07 63153 00 07 63154 00 07 63221 00 07 63222 00 07 63223 00 07 63224 00 07 63330 00 07 63331 00 CHIP 2200PF 10 X7R 0603 SMT CHIP 0 022µF 10 X7R 0603 SMT CHIP 2700PF 10 X7R 0603 SMT CHIP CAP 33PF 5 NPO 0603 SMT CHIP 3300PF 10 X7R 0603 SMT CHIP 5600PF 10 X7R 0603 SMT E CAP 100µF 10V Ø5X7MM MINI E CAP 47µF 10V Ø4X7 MINI E CAP 10µF ...

Page 32: ...148X3 4 FLEXIBLE PCB SPK 80UH 0 25W 4 6X23MM TRANS WT 2672 JBC 544 EFD15 RING COIL Ø27X12MM V TYPE TACT SW DCT 1101 4 3MM 2 PIN TACT SW TS 065001 150 H 5MM PUSH SW SPPB51377A DS 20 KONEX 6 2 4 37 1 2 2 1 2 1 1 1 1 1 1 1 1 1 1 PC BOARD ASSY FM TUNER BOARD FM AM TUNER 29 17870 00 LA1787 FM AM TUNE CET 7000USA 1 PC BOARD ASSY AM TUNER BOARD Q204 Q203 Q202 C206 C204 C208 C207 C205 R203 5 R207 R206 L20...

Page 33: ... 0603 SMT CCT148X3 4 KB D S 1 2X184 8X65 8 TACT SW DCT 1101A 2PIN L 5MM CD115 ROTRAY ENCODER VOL 1 1 1 3 5 1 3 9 3 3 3 1 3 5 4 2 1 21 1 CD BOARD ASSY COUNTER BOARD Q650 3 IC650 C652 3 C650 C656 C654 5 C651 R659 60 62 R650 3 R665 R654 R655 R663 R656 8 R664 01 01623 00 03 04558 06 05 63104 01 05 63682 01 06 10227 01 06 16107 01 06 50225 01 07 63103 00 07 63124 00 07 63220 00 07 63222 00 07 63332 00 ...

Page 34: ... 07 05273 54 IC KS9286 CRYSTAL HC 49 US 16 9344MHz CHIP CER 4P 50V J CH TA CHIP CER 8P 50V J CH TA CHIP CER 1000P 50V K Y5P TA CHIP CER 0 01µF 50V K Y5P TA CHIP CER 0 1µF 50V K Y5P TA CHIP CER CAP 150PF CHIP CER 1500P 50V K Y5P TA CHIP CER 20P 50V COG TA 5 CHIP CER 2200P 50V K Y5P TA CHIP CER 330P 50V K Y5P TA CHIP CER 0 033µF 50V X7R 10 CHIP CER 390P 50V K Y5P TA CHIP CER 4700 50V K Y5P TA CHIP C...

Page 35: ...RO SW SW 111 SHIN MEI 2 1 2 1 6 1 1 1 1 1 1 4 2 2 9 1 2 1 1 PC BOARD ASSY REMOTE BOARD Q500 LD901 D500 2 IC500 C504 X2 C501 2 R501 R500 R502 4 8 CF501 01 01781 18 02 00334 00 02 04148 00 03 06121 01 05 03105 10M 05 03121 06 07 05022 54 07 05102 54 07 05104 54 09 50455 05J 12 04931 819 TR 2SD1781K R ROHM INFRARED LED Ø3MM MIE 334A4 DIODE IN 4148 IC µPD 6121G 001 CHIP CAP KC20E1C105M TS CHIP CAP 120...

Page 36: ...E1C105M TS CHIP 680PF 5 NPO 0603 SMT E CAP 100µF 10V Ø5X7MM MINI E CAP 1µF 50V Ø4X7MM E CAP 2 2µF 50V Ø4X7MM CHIP RES 1kΩ 5 0603 SMT CHIP RES 10kΩ 5 0603 SMT CHIP RES 22kΩ 5 0603 SMT CHIP RES 330kΩ CHIP RES 470Ω 5 0603 SMT CHIP RES 8 2kΩ 5 0603 SMT Ø3 5MM JACK 4PIN W SW DOUBLE RCA 200MM BLACK W C 2 1 2 2 1 2 2 3 4 2 2 2 2 1 1 PC BOARD ASSY JB GIB BOARD Z701 IC701 C704 C703 C701 2 5 6 C707 R701 10 ...

Page 37: ... 8kHz Cassette Player Stereo separating FM 30 dB at 1kHz Signal to noise ratio FM Better than 50 dB Output power 4 X 40W Speaker output impedance 4 To 8 ohm Power source DC 12V Negative ground Frequency range FM 87 5 108 MHz MW 522 1620 kHz LW 144 288 kHz Sensitivity FM 3 µV S N 30dB MW 32 dBµ S N 20 dB LW 35 dBµ S N 20 dB Specifications are subject to change without notice ...

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