Download
Share
Print this page
Aiwa LCX-K277 Service Manual
  1. Manuals
  2. Brands
  3. Aiwa Manuals
  4. Stereo System
  5. LCX-K277
  6. Service manual
Aiwa LCX-K277 Service Manual

Aiwa LCX-K277 Service Manual

Compact disc stereo system
Hide thumbs

Advertisement

Quick Links

Download this manual
LCX-K277
HC(S)
SERVICE MANUAL
COMPACT DISC STEREO
BASIC TAPE MECHANISM : TN-21ZSC-2003
SYSTEM
BASIC CD MECHANISM : DA-11T3C
MODEL CODE : 86HR8-0117(B)
S/M Code No. 09-007-347-4N2

Advertisement

loading

Related Manuals for Aiwa LCX-K277

Summary of Contents for Aiwa LCX-K277

  • Page 1 LCX-K277 HC(S) SERVICE MANUAL COMPACT DISC STEREO BASIC TAPE MECHANISM : TN-21ZSC-2003 SYSTEM BASIC CD MECHANISM : DA-11T3C MODEL CODE : 86HR8-0117(B) S/M Code No. 09-007-347-4N2...

  • Page 2: Specifications

    SPECIFICATIONS • Design and specifications are subject to change without notice...

  • Page 3: Protection Of Eyes From Laser Beam During Servicing

    PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully the CAUTION instructions below when servicing. Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous WARNING! radiation exposure.
  • Page 4 Precaution to replace Optical block (SF-P101NR) PICK-UP Assy P.W.B Body or clothes electrostatic potential could ruin laser diode in the optical block. Be sure ground body and workbench, and use care the clothes do not touch the diode. 1) After the connection, remove solder shown in the right figure.
  • Page 5 ELECTRICAL MAIN PARTS LIST-1/4 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C117 87-010-403-080 CAP, ELECT 3.3-50V C118 87-010-101-080 CAP, ELECT 220-16 87-A20-547-010 C-IC,CXA1992AR C119 87-010-196-080 CHIP CAPACITOR,0.1-25 87-A21-368-010 IC,NJM7812FA(A) C120 87-010-263-080 CAP, ELECT 100-10V 87-A20-919-040 C-IC,BA5915FP C201 87-010-248-080...
  • Page 6 ELECTRICAL MAIN PARTS LIST-2/4 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C709 87-012-195-080 C-CAP,U 100P-50CH CN201 87-099-719-010 CONN,30P TYK-B(X) C711 87-010-260-080 CAP, ELECT 47-25V CN203 87-A60-060-010 CONN,07P V 9604S-07C C712 87-010-831-080 C-CAP,U,0.1-16F CN301 87-A60-627-010 CONN,10P V 2MM JMT C714 87-012-286-080 CAP, U 0.01-25...
  • Page 7 ELECTRICAL MAIN PARTS LIST-3/4 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C119 87-010-313-080 CAP, CHIP 18P C520 87-012-157-080 C-CAP,S 330P-50 CH C120 87-010-992-080 C-CAP,S 0.047-25 B C521 87-012-154-080 C-CAP,S 150P-50 CH C121 87-010-992-080 C-CAP,S 0.047-25 B C522 87-010-371-080 CAP, ELECT 470-6.3V...

  • Page 8: Chip Resistor Part Code

    ELECTRICAL MAIN PARTS LIST-4/4 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION L510 87-005-270-080 COIL,4.7UH K LAL03 PT C.B R109 87-022-364-080 C-RES,S 82K-1/10W F R507 87-A00-408-080 C-RES,S 2K-1/10W D C100 87-010-398-010 CAP ELECT 2200 S201 88-CDV-607-010 SW,SL 2-2-3 SK23D02G9 C101 87-010-198-080...
  • Page 9 WIRING-1/5 (MAIN) C743 C810 C700 C965...
  • Page 10 SCHEMATIC DIAGRAM-1/5 (MAIN1/2) 1800p L202 1800p FB703 FB702 IC102 TAPE DECK NJM7812FA (TN-21ZSC-2003) FB705 S101 AC VOLTAGE -10-...
  • Page 11 SCHEMATIC DIAGRAM-2/5 (MAIN2/2: TUNER) C700 -11-...
  • Page 12 WIRING-2/5 (MICON/KEY/LED) SELECT CLEAR/ CD/PBC RETURN PREVIOUS NEXT S920 VOLUME/ MULTI JOG TO VCD C.B CN403 -12-...
  • Page 13 SCHEMATIC DIAGRAM-3/5 (MICON) XBUSY XBUSY COMMAND COMMAND STATUS STATUS STATUS I-STATUS IC601 LC877248A-5R97 XBUSY I/O-XBUSY O-SCK COMMAND O-COMMAND DESTINATION DOWN/ CLEAR/ PRESET/ CD/PBC PREVIOUS NEXT RETURN SELECT -13-...
  • Page 14 WIRING-3/5 (VCD: COMPONENT SIDE) -14-...
  • Page 15 WIRING-4/5 (VCD: CONDUCTOR SIDE) CN602 PIN3 CN203 CN405 CN101 C605 J501 -15-...
  • Page 16 SCHEMATIC DIAGRAM-4/5 (VCD1/2) R140 5.6k C320 PIN3 -16-...
  • Page 17 SCHEMATIC DIAGRAM-5/5 (VCD2/2) J501 -17-...
  • Page 18 WIRING-5/5 (PT/MOTOR) MOTOR C.B (SLED MOTOR) (INSIDE LIMIT SW) (SPINDLE MOTOR) -18-...
  • Page 19 ELECTRICAL ADJUSTMENT-1/1 MAIN C.B (RED) (YELLOW) L771 L981 L772 IC772 IC721 L301 J201 PHONS MICON C.B IC404 SFR430 -19-...
  • Page 20 VOLTAGE CHART-1/1 -20-...
  • Page 21 FL (AIW4214-30PIN ACJ-11) GRID ASSIGNMENT/ANODE CONNECTION-1/1 GRID ASSIGNMENT ANODE CONNECTION -21-...
  • Page 22 TRANSISTOR ILLUSTRATION-1/1 E C B E C B E C B 2SA1162 2SC2001 2SB1370F KTC3198 2SC2712 2SD655 DTC114YS 2SC2714 2SA952 DTA123JK DTA124XK DTC114EK RT1P144C DTC124XK RN1410 E C B E C B 2SA933S 2SA1357 HN1C03F -22-...
  • Page 23 IC BLOCK DIAGRAM-1/1 IC, M62495AFP IC, M5291FP Switch collector Driver Peak currect Switch emitter detection External capacitance Power supply 1.17V for oscillation REF. VOL Ground Comparator input IC, LC72131D IC, LA1837NL IC, BA4560N -23-...
  • Page 24 IC DESCRIPTION-1/7 (LC877248A-5R97)-1/2 Pin No. Pin Name Description O-ARDY O-SREQ O-SOUT Not connected. I-SIN I-ACLK I-MREQ NC (SELECT) Pull down. O-PCONT Main power control. ___________ I-HOLD Hold status detection. O-CLKSFT Clock shift control. I-RESET Reset terminal. Connected to VDD. Not connected. VSS1 —...
  • Page 25 IC DESCRIPTION-1/7 (LC877248A-5R97)-2/2 Pin No. Pin Name Description 56-79 S24-S47 LCD SEG terminal initial setting output. (No.28-5) I-DOOR CD door detection. I-WRQ Sub-code Q reading stand-by for CD LSI communication. I-DRF RF level detection input. 83-86 COM0-COM3 LCD common output. (No.4-1) O-CDCONT CD/VCD power supply control.
  • Page 26 IC DESCRIPTION-2/7 (CXA1992AR)-1/2 Pin No. Pin Name Description Output terminal for focus error amplifier. Internally connected to window comparator input for bias condition. Input terminal for focus error. FDFCT Capacitor connection terminal for time constant used when there is defect. This pin is connected to GND via capacitor when high frequency gain of the focus servo is attenuated.
  • Page 27 IC DESCRIPTION-2/7 (CXA1992AR)-2/2 Pin No. Pin Name Description RF_O Output terminal of RF summing amplifier. Checkpoint of Eye pattern. Anti-reverse input terminal for RF summing amplifier. RF_M The gain of RF amplifier is decided by the connection resistance between RF_M and RFO terminals.
  • Page 28 IC DESCRIPTION-3/7 (CXD2540Q)-1/3 Pin No. Pin Name Description Focus OK input. Used for SENS output and the servo auto sequencer. Spindle motor output filter switching output. (Not connected) Spindle motor on/off control output. (Not connected) Spindle motor servo control. (Pin 5 is not connected) High, when sampled value of GFS at 460Hz is high.
  • Page 29 IC DESCRIPTION-3/7 (CXD2540Q)-2/3 Pin No. Pin Name Description LRCK64 DA12 output when PSSL=1. 64-bit slot LR clock when PSSL=0. (Not connected) GTOP DA11 output when PSSL=1. GTOP output when PSSL=0. (Not connected) XVCF DA10 output when PSSL=1. XUGF output when PSSL=0. (Not connected) XPCLK DA09 output when PSSL=1.
  • Page 30 IC DESCRIPTION-3/7 (CXD2540Q)-3/3 Pin No. Pin Name Description CNIN Track jump count signal input. DATO Serial data output to SSP. XLTO Serial data latch output to SSP. Latched at the falling edge. CLKO Serial data transfer clock output to SSP. Mirror signal input.
  • Page 31 IC DESCRIPTION-4/7 (CL680)-1/3 Pin No. Pin Name Description — No connection. — GND. CD BCK Bit clock input from CD DSP. CD DATA Data input from CD DSP. CD LRCK LRCK input from CD DSP. CD C2PO C2 pointer input from CD DSP. —...
  • Page 32 IC DESCRIPTION-4/7 (CL680)-2/3 Pin No. Pin Name Description Y OUT Video signal “Y” OUT. (No connection) AVDD DAC — Analog power supply (DAC) 3.3V. AGND DAC — Analog ground. R REF Reference resistor input. V REF Voltage reference input. AVDD DAC —...
  • Page 33 IC DESCRIPTION-4/7 (CL680)-3/3 Pin No. Pin Name Description __________ HINT Micon interface. (Host interrupt) CDG SCK CD-G serial clock input. — Ground. Micon interface. (Host clock) VDD3 — Power supply 3.3V. HD IN Micon interface. (Host data in) VDD3 — Power supply 3.3V.
  • Page 34 IC DESCRIPTION-5/7 (LC74781M)-1/2 Pin No. Pin Name Description VSS1 — GND connection terminal. (Digital ground terminal) Xtal IN External X’tal and capacitor for internal sync generator, or the external clock are Xtal OUT connected to this terminal. (2fsc or 4fsc) Either the external clock input mode or the X’tal generator mode is selected by this selector CTRL1 terminal.
  • Page 35 IC DESCRIPTION-5/7 (LC74781M)-2/2 Pin No. Pin Name Description VDD1 — Power supply. (+5V digital power supply) -35-...
  • Page 36 IC DESCRIPTION-6/7 (µPD78016FGC-578-AB8)-1/2 Pin No. Pin Name Description RBPLS RADIAL BALANCE PLUS. AMUTE AUDIO ANALOG MUTE. (H=MUTE ON) GFS. XVCDMD AUDIO/VIDEO CD MODE. (L=VCD=SPINDLE GAIN UP) DOUT MUTE CONT. EMPH EMPHASIS. SQSO SQDATA FROM CD. SQCK SQCLK TO CD. — GND.
  • Page 37 IC DESCRIPTION-6/7 (µPD78016FGC-578-AB8)-2/2 Pin No. Pin Name Description 8.0MHz CERALOCK. — GND. — Not connected. 5.0VDD. AVSS — GND. XMPGRST MPEG BLOCK IC RESET. HSEL ADDRESS/DATA SEL TO CL680. INLSW INSIDE LIMIT SW . — Not connected. OSDXCS OSD CHIP SELECT. ABSEL CXA1992A/B SELECT.
  • Page 38 IC DESCRIPTION-7/7 (SM5878AM)-1/1 Pin No. Pin Name Description MODE = H: Soft mute ON/OFF terminal. (Mute at H) MUTE MODE = L: Attenuator level DOWN/UP terminal. (DOWN at H) DEEM De-emphasis ON/OFF terminal. (De-emphasis ON at H) Oscillator clock output. (16.9344 MHz) DVSS —...
  • Page 39 MECHANICAL EXPLODED VIEW-1/1 SH, REFRECTOR SH, DIFFUSION HT-SINK BINDER HT-SINK, WIRE TN-21ZSC BINDER CHAS, MAIN WIRE -39-...
  • Page 40 MECHANICAL PARTS LIST-1/1 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 8A-CJB-044-010 WINDOW,CASS (S) 33 8A-CJB-206-010 HLDR,CHAS CD R 2 8A-CGC-005-010 LID,CASS 34 87-036-389-010 SW,PUSH LOCK 3 8A-CJB-221-010 SPR-T,CASS 35 8A-CJB-205-010 HLDR,CHAS CD L 4 8A-CJB-020-010 KNOB,RTRY JOG 36 8Z-NF6-210-010 DMPR,150 N...

  • Page 41: Color Name Table

    COLOR NAME TABLE Basic color symbol Color Basic color symbol Color Basic color symbol Color Black Cream Orange Green Gray Blue Transparent Blue Gold Pink Silver Titan Silver Brown Violet White Transparent White Yellow Transparent Yellow Metallic Blue Light Blue Transparent Green Dark Blue Transparent Orange...
  • Page 42 TAPE MECHANISM EXPLODED VIEW-1/1 (TN21ZSC) LUG PLATE -42-...
  • Page 43 TAPE MECHANISM PARTS LIST-1/1 (TN21ZSC) REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 1 S1-921-030-4A0 HEAD BASE 36 S1-921-140-220 REC BUTTON LEVER 2 S1-821-030-070 AZIMUTH SPRING 37 S1-921-140-170 P.S.LEVER SPRING 3 S1-921-030-090 PANEL P SPRING 38 S1-921-073-040 RF CLUTCH ASSY 4 S1-921-260-050 GEAR PLATE SPRING...
  • Page 44 CD MECHANISM EXPLODED VIEW-1/1 (DTA11T3C) MOTOR C.B PIN 3 -44-...
  • Page 45 CD MECHANISM PARTS LIST-1/1 (DTA11T3C) REF. NO PART NO. KANRI DESCRIPTION 1 M8-ZZK-E90-070 DA11T3C 2 S2-121-A28-400 COVER GEAR 3 S2-511-A21-000 GEAR MIDDLE 4 S2-511-A21-100 GEAR,DRIVE A S1-PN2-03R-OSE SCR PAN PCS 2-3 -45-...
  • Page 46 SPEAKER PARTS LIST-1/1 REF. NO PART NO. KANRI DESCRIPTION 1 8A-CJB-632-010 SPKR,100MM 4OHM 2 8A-CJB-021-010 CABI,SPKR FR 3 8A-CJB-023-110 PANEL,SPKR 4 8A-CJB-220-010 HLDR,SPKR REAR 5 8A-CJB-204-010 HLDR,SPKR WIRE 6 8A-CJB-627-010 CORD,SPKR 7 8A-CJB-027-010 CUSH,FOOT A 87-067-698-010 BVT2+3-18(W/O,SLOT) B 87-067-703-010 TAPPING SCREW, BVT2+3-10 -46-...
  • Page 47 ACCESSORIES/PACKAGE LIST-1/1 REF. NO PART NO. KANRI DESCRIPTION 1 8A-CGC-911-010 IB,H(EC-K)B 2 87-A90-030-010 ANT,LOOP AM-NC C 3 87-043-115-010 ANT,FEEDER FM 4 8Z-CG8-952-010 RC UNIT,RC-ZAT05 -47-...
  • Page 48 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 737004 Printed in Singapore...