Aiwa RC-AAT20, Service Manual

Page 1: ...SERVICE MANUAL D A T A SYSTEM SPEAKER REMOTE CONTROL CONPACT DISC STEREO SYSTEM XR MSK3 S M Code No 09 00A 351 3N1 HRJ S HRJ7 S BASIC CD MECHANISM TN CCD1001 149M XR MSK3 SX MS7 RC AAT20 ...

Page 2: ...SECTION 19 SCHEMATIC DIAGRAM 6 CD SECTION 21 SCHEMATIC DIAGRAM 7 TUNER SECTION 23 SCHEMATIC DIAGRAM 8 PT SECTION 25 WIRING 1 MAIN 1 2 C B 14 WIRING 2 MAIN 2 2 C B 15 WIRING 3 FRONT HP JACK C B 17 WIRING 4 VCD C B 20 WIRING 5 CD C B 22 WIRING 6 TUNER C B 24 WIRING 7 PT C B 25 IC BLOCK DIAGRAM 23 26 27 IC DESCRIPTION 28 45 FL 9 ST 19GONK GRID ASSIGNMENT ANODE CONNECTION 46 48 ADJUSTMENT TUNER MAIN S...

Page 3: ... RC UNIT RC AAT20 3 87 006 225 010 AM LOOP ANT NC2 4 87 043 115 010 ANT FEEDER FM 5 87 050 103 010 CORD PIN 1PY1 5M 6 87 A91 017 010 PLUG CONVERSION JT 0476 Design and specifications are subject to change without notice The word BBE and the BBE symbol are trademarks of BBE Sound Inc Under license from BBE Sound Inc ...

Page 4: ...UP BLOCK CAUTION Use of controls or adjustments or performance of proce dures other than those specified herin may result in hazardous radiation exposure This Compact Disc player is classified as a CLASS 1 LASER product The CLASS 1 LASER PRODUCT label is located on the rear exterior PICK UP ASSY VED0375 TN Precaution to replace Optical block VED0375 TN Body or clothes electrostatic potential could...

Page 5: ...AR 1 CD BLOCK 1 Remove the PANEL SIDE Remove the four screws indicated by the arrows and remove the PANEL SIDE right and left 2 Remove the CABI TOP ASSY Remove the five screws indicated by the arrows and remove the CABI TOPASSY Screw Screw Screw CABI REAR PANEL SIDE Screw Screw Screw Screw Screw Screw CABI TOP ASSY Screw ...

Page 6: ...emove the TUNER board connected to the connector 6 Remove the CD MECHA 1 Remove the two screws indicated by the arrows 2 Lift up the CD MECHA in the direction of arrow 1 and hook in the position indicated in circle 3 Remove the CD MECHA in the direction of arrow 2 TUNER board Screw Screw Screw CABI FR ASSY Screw Screw Hook CD MECHA ...

Page 7: ...838 87 A40 004 080 ZENER MTZJ16A 87 070 136 080 ZENER MTZJ5 1B 87 A40 509 080 ZENER MTZJ6 8C 87 A40 269 080 C DIODE MC2836 87 A40 293 080 ZENER DZ2 7M 87 017 654 060 DIODE GBU6J 87 A40 874 040 C ZENER UDZS 5 6B 87 A40 335 080 ZENER MTZJ11C 87 A40 341 080 ZENER MTZJ 36 A 87 020 027 080 CHIP DIODE 1SS184 87 017 024 040 C DIODE DA204K 87 A40 180 040 C DIODE SB07 015C 87 001 731 080 ZENER HZS6C2L 87 0...

Page 8: ...2 080 C CAP S 100P 50 CH C905 87 010 196 080 CHIP CAPACITOR 0 1 25 C914 87 010 196 080 CHIP CAPACITOR 0 1 25 CN1 87 A61 142 010 CONN 7P V THL P07 A1 CN91 87 A60 619 010 CONN 2P V 2MM JMT CN901 87 A60 770 010 CONN 18P B TMC D X CN902 87 009 799 010 CONN 14P TKC M X CN903 87 099 570 010 CONN 13P TUC P13P B1 CN905 87 A60 901 010 CONN 12P V BLK FMN BTRK CNA2 88 805 030 820 CONN ASSY 3P 80 CNA201 88 80...

Page 9: ...000P 50B C320 87 010 196 080 CHIP CAPACITOR 0 1 25 C501 87 010 197 080 CAP CHIP 0 01 DM C502 87 010 197 080 CAP CHIP 0 01 DM C503 87 012 286 080 CAP U 0 01 25 C504 87 012 172 080 CAPACITOR CHIP U 10P CH C505 87 012 172 080 CAPACITOR CHIP U 10P CH C506 87 012 286 080 CAP U 0 01 25 C508 87 010 263 040 CAP E 100 10 C509 87 016 669 080 C CAP S 0 1 25 K B C510 87 010 263 040 CAP E 100 10 C511 87 010 19...

Page 10: ...7 A10 592 080 C CAP S 0 015 50 J B C0706 87 A10 592 080 C CAP S 0 015 50 J B C0709 87 012 195 080 C CAP U 100P 50 J CH C0711 87 010 260 080 CAP E 47 25 M 11L SME C0712 87 010 831 080 C CAP U 0 1 16 Z F C0714 87 012 286 080 C CAP U 0 01 25 K B C0717 87 012 286 080 C CAP U 0 01 25 K B C0719 87 012 286 080 C CAP U 0 01 25 K B C0720 87 012 195 080 C CAP U 100P 50 J CH C0721 87 012 176 080 C CAP U 15P ...

Page 11: ... 2 1 6 108 118 128 A A CHIP RESISTOR PART CODE 0 55 Resistor Code Dimensions mm Symbol 1 16W 1005 5 CJ 1 0 0 5 0 35 104 L t W E C B CSC4115 KTA1266 KTC3198 E C B DTC114ES KTC3199 B C E 2SB1370 E C B 2SD1858 E C B 2SA1357 B E C 2SA1162 2SA1235 2SC2712 2SC2714 2SC3052 CSD1306 DTA123JK DTA124XK DTA144EK DTA144TK DTC114TUA DTC124EKA DTC124XK DTC144EK RT1N141C RT1P144C E1 B1 C2 C1 B2 E2 HN1C03 G S D 2S...

Page 12: ... 1 MAIN 1 2 SECTION 10V 10V 11V 11V 0V 0V 4V 4V 2 7V 27V 44V 27 9V 8 5V 11V 11V 11V 11V 11V 11V 11V 11V 8 3V 7 7V 20V 20V 7V 19V 0 5V 0 9V 11V 11V 10V 0 01V 0 01V 3 7V 0 6V 0 6V 0 02V 0 6V 0 4V 0V 0 88V 1 2V 0V 20V 20V 11V ...

Page 13: ... 13 SCHEMATIC DIAGRAM 2 MAIN 2 2 SECTION IC101 LC876564V 5S40 0V 5V 0V 5V 0V 5V 5V 0V 5V 0V 10V 6V 6V 5V 5V 5V 5V 5V 5V 11V 5 4V AT CD 5V W O CD 0V AT CD 5V W O CD 0V ...

Page 14: ...ING 1 MAIN C B 1 2 14 R908 D902 C031 R019 R010 D013 R024 TP1 13 14 C091 C092 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 A B C D E F G H I J K L M N O P Q R S T U 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 ...

Page 15: ...WIRING 2 MAIN C B 15 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 ...

Page 16: ... 16 SCHEMATIC DIAGRAM 3 FRONT SECTION 11V 0V 5V 0V 5V 0V 11V 0V 11V 0V 11V 0V 11V 0V 11V 0V 11V 0V 11V 0V 11V 0V 11V 11V 0V 11V 0V 11V 0V 11V 0V 11V ...

Page 17: ...WIRING 3 FRONT HP JACK C B 17 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 A B C D E F G H I J K L M N O P Q R S T U 1 2 3 4 5 6 7 8 9 25 26 27 28 29 30 31 32 ...

Page 18: ...D OUT IN GND OUT 5V 2 47V 2 47V 2 47V 2 47V 2 47V 2 47V 2 47V 2 46V 2 46V 2 46V 2 47V 2 47V 4 6V 4 6V 4 8V 4 8V 0V 5 7V 5 7V 2 6V 2 6V 2 5V 2 5V 2 5V 2 5V 5V 5V 5V 5V 5V 5V 5V 5V 5V 5 7V 5 7V 5 7V 3 3V 11V 11V 11V 11V 11V 11V 7 6V 7 6V 0V 0V 5 3V ...

Page 19: ... 19 SCHEMATIC DIAGRAM 5 VCD 2 2 SECTION 9017 5V 5V 5V 5V 5V 5V 5V 5V 3V 3V 3V 3V 3V 3V 3V 3V 3V 3 2V 3 2V 3 2V 3 2V 3 2V 4 8V 4 7V 4 7V 4 7V 4 7V 4 7V 0V 4V 3 4V 3V 3V ...

Page 20: ...28 1 7 5 8 10 14 7 5 3 1 14 12 10 8 14 15 20 25 30 35 13 1 5 10 52 40 45 50 39 26 27 X201 48 49 50 55 60 64 1 5 10 16 15 17 20 25 30 33 35 40 45 32 5 7 8 1 3 4 1 3 2 1 3 2 8 10 14 8 10 14 1 1 32 3 5 7 9 11 13 15 31 29 27 25 23 21 19 17 16 5 7 1 5 7 1 1 3 5 7 9 11 23 24 21 19 17 15 13 12 5 10 12 13 15 20 24 8 7 6 5 4 3 2 1 1 3 4 5 6 7 8 A B C D E F G H I J K L M N O P Q R S T U 2 A B C D E F G H I ...

Page 21: ...IAGRAM 6 CD SECTION 2 5V UP 8 5V 8 5V 8 5V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 5 3V 2 5V 2 5V 2 5V 2 5V 2 5V 2 5V 4 8V 4 8V 2 5V 2 5V 2 5V 2 5V 2 5V 2 5V ...

Page 22: ...WIRING 5 CD C B 22 ...

Page 23: ... 23 SCHEMATIC DIAGRAM 7 TUNER SECTION IC BLOCK DIAGRAM 1 IC LC72131D IC LA1837NL FEMUNM 4F 4F 4F 10V 10 10V 7 5V 5 5V ...

Page 24: ...WIRING 6 TUNER C B 24 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 A B C D E F G H I J K L M N O P Q R S T U 1 2 3 4 5 6 7 8 9 25 26 27 28 29 30 31 32 ...

Page 25: ...SCHEMATIC DIAGRAM 8 PT SECTION WIRING 7 PT C B 25 T001 T002 8V 11V 11V 11V 10 11 12 13 14 15 16 17 18 19 A B C D E F G H I J K L M N O P Q R S T U 1 2 3 4 5 6 7 8 9 ...

Page 26: ...FL LPFL 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VCA VCA CTL CTL HPF LPF LPF HPF LO LO HI HI MID MID 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 BIAS VCC RIN PNR B Q DET QF6 ROUT LOUT GND LIN VREF QF1 QF2 QF3 QF4 QF5 QSurround IC M5291FP IC BA6289F VCC VREF VM OUT1 OUT2 GND DRIVER DRIVER 3 6 2 5 4 8 1 7 POWER SAVE CONTROL LOGIC TSD RIN FIN M ...

Page 27: ...2 5 7 10 35 38 40 43 DQ0 DQ3 DQ4 DQ7 DQ8 DQ11 DQ12 DQ15 9 9 9 9 16 16 8 8 8 8 8 8 8 8 8 8 BUFFER SENSE AMP BUFFER BUFFER TIMING CIRCUIT ADDRESS BUFFER ADDRESS DECODER MEMORY MATRIX 262 144 X 8bit COLUMN SELECT VCC GND D0 D1 D2 D3 D4 D5 D6 D7 13 16 32 24 22 12 11 10 9 8 7 6 5 27 26 25 23 4 28 29 8 2 30 14 15 17 18 19 20 21 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 CE OE 28 27 26...

Page 28: ...LEVEL I Level meter input AD 19 I KEY1 I Key 1 AD input 20 I KEY0 I Key 0 AD input 21 I MODE SW TP I Deck mechanical status detection input AD 22 O STB F O Front shift registor BU4094BCF latch reversal output 23 I JOG1 I AD input from multi jog rotary encoder output A B 24 O BBEB O BBE control reversal output B 25 O CE TU O Tuner PLL IC LC72131D chip enable output 26 O BBEA O BBE control reversal ...

Page 29: ...Reset output to CD MICON 79 I SWCD I CD disc detection switch H active 80 I D CD MS CD I Transmission data from CD MICON 81 O QSURR O Q Surround IC control output 82 O TUON TU O Tuner power supply switch output 83 O MOTOR TP O Deck mechanical motor control output Not used 84 O SWSCAN O Tuner test mode TP used for coil adjustment point 85 O SREQ MD O Serial data for MD unit control transmission req...

Page 30: ...put 16 SLO O Sled drive output 17 ISET I The current which determines height of the focus search track jump and sled kick is input with external resistance connected 18 VCC I Power supply 19 LOCK I L setting starts sled disorder prevention circuit No pull up resistance Connected to VC 20 CLK I Clock input for serial data transfer from CPU No pull up resistance 21 XLT I Latch input from CPU No pull...

Page 31: ...mplifier inverted input pins These pins are connected to the F and E of the optical pickup receiving by current input 43 EI Gain adjustment pin of the I V amplifier E When not in use of BAL automatic adjustment Not used 44 VEE GND connection pin 45 TEO O Output terminal for tacking error amplifier Output E F signal 46 LPFI I BAL adjustment comparator input pin Input through LPF from TEO 47 TEI I I...

Page 32: ...o connection DRAM ROM interface DATA Ground DRAM ROM interface DATA DRAM ROM interface DATA Ground DRAM ROM interface DATA DRAM ROM interface DATA No connection ROM chip enable DRAM write enable Ground DRAM ROM interface Power supply 3 3V DRAM ROM interface DRAM ROM interface Address Ground DRAM ROM interface Address Power supply 3 3V DRAM ROM interface Address Ground DRAM ROM interface Address Po...

Page 33: ...z Global clock signal output 27 0MHz DAC LRCK output Power supply VDD MAX 5 0V DAC PCM data output DAC BIT clock output Micon interface Data out Micon interface Host ready O I I O I I I I O I O I O I O O O O I I O O O O O O Y OUT AVDD DAC AGND DAC R REF V REF AVDD DAC C OUT AGND DAC CLK SEL0 2 VSS CLK SEL3 VDD3 CLK SEL4 5 AGND PLL DA XCK AVDD PLL DA EMP PGIO5 O6 PGIO0 PGIO8 VSYNC CSYNC AVDD PLL NC...

Page 34: ...4 115 116 117 118 119 120 121 122 123 124 125 128 Micon interface Host interrupt CD G serial clock input Ground Micon interface Host clock Power supply 3 3V Micon interface Host data in Power supply 3 3V Micon interface Host select in CD G data input CD G VFSY input CD G SOSI input Not connected O I I I I I I I ...

Page 35: ...lation input for the wide band EFM PLL Multiplier PLL filter input Multiplier PLL charge pump output Analog GND Multiplier VCO1 control voltage input Analog power supply 5V EFM signal input Constant current input of the asymmetry circuit Asymmetry comparator voltage input EFM full swing output Low asymmetry circuit off high asymmetry circuit on Not used Audio data output mode switching input Low s...

Page 36: ... when PSSL 0 Aperture compensation control output This pin outputs a high signal when the right channel is used Aperture compensation control output This pin outputs a high signal when the left channel is used GND Crystal oscillation circuit output Crystal selector input 2 3 frequency divider output for Pins 53 and 54 1 4 frequency divider output for Pins 53 and 54 16 9344MHz output V16M output in...

Page 37: ...ndow open XUGF is the negative pulse for the frame sync obtained from the EFM signal It is the signal before sync protection XPLCK is the inverse of the EFM PLL clock The PLL is designed so that the falling edge and the EFM signal transition point coincide GFS goes high when the frame sync and the insertion protection timing match RFCK is derived from the crystal accuracy and has a cycle of 136µ C...

Page 38: ...d to GND or not connected Composite video signal input terminal Power supply 5V digital power supply Video signal for the internal sync separator circuit is input to this terminal When the internal sync separator circuit is not used the horizontal sync signal or composite sync signal is input to this terminal Internal sync separator circuit bias voltage monitoring terminal The composite sync outpu...

Page 39: ... 39 23 24 Pin No Pin Name I O Description RST VDD1 I System reset input terminal Pull up resistor is built in Hysteresis input Power supply 5V digital power supply ...

Page 40: ...rminal Digital VDD terminal Sample rate clock fs input terminal H L ch L R ch Test input H or open during normal operation Test output 1 Normally low level output Analog VDD terminal For L ch Left channel analog output terminal Analog VSS terminal Right channel analog output terminal Analog VDD terminal For R ch Infinity zero detection output X tal system VDD terminal X tal oscillator terminal Or ...

Page 41: ... GAIN UP DOUT MUTE CONT EMPHASIS SQDATA FROM CD SQCLK TO CD GND SW TV OUT MODE L NTSC SW TV OUT MODE L NTSC PAL AUTO SW TV OUT MODE L PAL POWER EMERGENCY STOP L 3sec STOP Not used Not used GFS FRAME SYNC LOCK NO USE H DIGITAL DATA OUT MUTE DSP SENS1 FROM CD CD RESET DATA TO CD XLT TO CD CLK TO CD GND FOCUS OK SSP SENS2 FROM CD READY BUSY I O TO HOST OD CHECK LAND RESET HRDY FROM CL680 XHINT FROM C...

Page 42: ... 64 GND Not used 5 0VDD GND MPEG BLOCK IC RESET ADDRESS DATA SEL TO CL680 INSIDE LIMIT SW Not used CXA1992A B SELECT L CXA1992A CLV MODE SELECT H CLV N AUTO ADJUST SELECT H AUTO ON 5 0VDD HD OUT FROM CL680 OSD DATA OSD CLOCK COMMAND FROM HOST STATUS TO HOST SCK FROM HOST I I O O I O I I I I O O O O I O I Pin No Pin Name I O Description 8 0MHz CERALOCK OSD CHIP SELECT HD IN FROM CL680 HCK TO CL680 ...

Page 43: ...ata input to CXD2587Q Clock output for transferring serial data to CXD2587Q Not used Latch signal output to CXD2587Q Latches serial data at the trailing edge Not used Serial data output to CXD2587Q Not used Muting output to CXD2587Q L Muting OFF H Muting ON Not used For setting the amount of 12 cm disc to come out when it is ejected Not used For setting the amount of 8 cm disc to come out when it ...

Page 44: ...Q Not used Not used Not used Not used Not used Not used Not used Interrupt input for controlling microprocessor sleep mode CPU issues STOP command L CPU sleep status H CPU operational status sleep mode is released by the leading edge Interrupt input for serial communication request from system microprocessor leading edge is detected Sub code sync input from CXD2587Q Disc insertion detection switch...

Page 45: ... 45 75 76 77 78 79 80 SW2 PG6 PG7 PF0 PF1 PF2 12 cm disc detection End detection when 12 cm disc is ejected Not used Not used Not used Not used Not used I O I I I I Pin No Pin Name I O Description ...

Page 46: ... 46 LCD DISPLAY FL 9 ST 19GONK GRID ASSIGNMENT AND ANODE CONNECTION GRID ASSIGNMENT ...

Page 47: ... 47 ANODE CONNECTION ...

Page 48: ... 48 ...

Page 49: ...1 Method Insert AC plug with pressing TUNER function key Adjust L101 so that frequency across the test point is 97 258 0 098 Hz 10 292 10 272 ms L771 L981 L772 FFE801 1 IC771 TP1 VT TP2 CLK TP4 DC TP3 DC 1 CN701 GND TP6 LCH TP7 RCH TUNER C B 1 2 3 3 4 4 4 6 7 7 5 7 MAIN C B CN902 CN903 CN905 IC201 CNA201 CN091 CNA002 IC101 L101 CN901 CN001 TP1 GND 8 8 1 Clock Frequency Check Settings Test point TP...

Page 50: ...12 23 25 24 13 14 16 HLDR FR PWB HT SINK HT SINK ASSY SUB HT SINK MAIN HLDR TR HT SINK IC B HT SINK IC A ZZA 1 PWB PWB PWB TN CCD1001 149M 18 PWB 17 15 29 28 27 20 19 26 C B B G G M A N C A C P J I C O O A N C A K H D E E E F K A A L P E A A d CHAS MAIN 22 21 c SH CD COVER ...

Page 51: ...symbol Color B Black C Cream D Orange G Green H Gray L Blue LT Transparent Blue N Gold P Pink R Red S Silver ST Titan Silver T Brown V Violet W White WT Transparent White Y Yellow YT Transparent Yellow LM Metallic Blue LL Light Blue GT Transparent Green LD Dark Blue DT Transparent Orange GM Metallic Green YM Metallic Yellow DM Metallic Orange PT Transparent Pink LA Aqua Blue GL Light Green 26 8A C...

Page 52: ...A A F B B B 50 A A A A A A A J J B H D D I H H G E I C 41 40 38 37 39 DET SW 30 31 32 36 29 28 DET SW FD GR C DET SW 31 33 34 35 13 14 15 44 48 51 52 53 54 55 58 57 56 60 61 62 66 64 68 59 59 44 24 23 22 25 4 22 21 68 20 10 11 12 65 63 8 9 8 7 6 2 3 1 5 18 16 17 42 19 26 27 PWB PWB ...

Page 53: ... 37 S3 031 010 380 LDG GR 6 B 38 S3 031 010 220 LDG GR 6 SPRING 39 S3 031 010 370 FIX PL R B 40 S3 031 010 340 FIX ARM L B 41 S3 031 010 500 FIX PL L Z 42 S3 031 050 310 FD SCREW M 43 S3 031 010 620 BARNCE SPRING LR 44 S3 031 050 240 DAMPER J 45 S3 031 010 020 REAR D BRKT 46 S3 031 010 150 TRIG PL SPRING 47 S3 031 010 160 TRIG ARM 48 S3 031 010 120 TRIG LVR 49 S3 031 010 550 TRIG PL Z 50 S3 031 01...

Page 54: ...completely Type 1 Insert a flat bladed screwdriver into the position indicated by the arrows and remove the panel Remove the screws of each speaker unit and then remove the speaker units Type 2 Remove the grill frame and four pieces of rubber caps by pulling out with a flat bladed screwdriver Remove the screws from hole where installed rubber caps Insert a flat bladed screwdriver into the position...

Page 55: ... REF NO PART NO KANRI DESCRIPTION NO 1 8A CJ5 422 010 GRILLE FRAME ASSY Y 2 8A CJ5 405 010 PANEL SP 3 8A CJ5 403 010 PANEL FR 4 8A CJ5 415 010 TERMINAL 5 8A CJ5 411 010 SPKR W 87S 6 8A CJ5 417 010 SPKR TW 25 7 8Z CL5 543 010 CORD SP ...

Page 56: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 8710 JAPAN TEL 03 3827 3111 737004 Printed inSingapore ...