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Aiwa lcx-k170 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
COMPACT DISC
STEREO SYSTEM
This Service Manual is the "Revision Publishing" and replaces "Simple Manual"
LCX-K170(HRJST)(S/M Code No.09-993-324-7T1).
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http://www.xiaoyu163.com
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u163
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S/M Code No. 09-993-324-7R1
http://www.xiaoyu163.com
LCX-K170
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8
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1 5
BASIC TAPE MECHANISM : TN21ZSC-1653
BASIC CD MECHANISM : KSM-2131 BDM
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HRJ(ST)
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2 8
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  • Page 1 3 7 63 1515 0 SERVICE MANUAL L 13942296513 BASIC TAPE MECHANISM : TN21ZSC-1653 COMPACT DISC BASIC CD MECHANISM : KSM-2131 BDM STEREO SYSTEM This Service Manual is the “Revision Publishing” and replaces “Simple Manual” LCX-K170(HRJST)(S/M Code No.09-993-324-7T1). u163 S/M Code No. 09-993-324-7R1 http://www.xiaoyu163.com...

  • Page 2: Table Of Contents

    http://www.xiaoyu163.com TABLE OF CONTENTS 3 7 63 1515 0 SPECIFICATIONS ..........................3 PROTECTION OF EYES FROM LASER BEAM DURING SERVICING/ Precaution to replace Optical block......................4 ELECTRICAL MAIN PARTS LIST ....................... 5-8 TRANSISTOR ILLUSTRATION ......................8 WIRING-1 (MAIN) ..........................9, 10 SCHEMATIC DIAGRAM-1 (MAIN) ....................

  • Page 3: Specifications

    http://www.xiaoyu163.com SPECIFICATIONS 3 7 63 1515 0 • Design and specifications are subject to change without notice L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 4: Protection Of Eyes From Laser Beam During Servicing

    http://www.xiaoyu163.com PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs laser. Therefore, be sure to follow carefully the CAUTION 3 7 63 1515 0 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 5: Electrical Main Parts List

    http://www.xiaoyu163.com ELECTRICAL MAIN PARTS LIST 3 7 63 1515 0 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION 87-010-405-080 CAP, ELECT 10-50V 87-010-404-080 CAP, ELECT 4.7-50V 87-A20-591-010 IC,BA5417 87-010-405-080 CAP, ELECT 10-50V 87-A21-373-010 IC,BA328 87-010-404-080 CAP, ELECT 4.7-50V 87-A20-547-010 C-IC,CXA1992AR 87-010-405-080...
  • Page 6 http://www.xiaoyu163.com 3 7 63 1515 0 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C508 87-010-545-080 CAP, ELECT 0.22-50V CF802 87-008-261-010 FILTER, SFE10.7MA5-A C509 87-010-545-080 CAP, ELECT 0.22-50V CN401 87-099-043-010 CONN 2P EH C510 87-010-263-080 CAP, ELECT 100-10V CN601 87-099-719-010 CONN,30P TYK-B(X)

  • Page 7: Transistor Illustration

    http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION REF. NO PART NO. KANRI DESCRIPTION C161 87-010-182-080 C-CAP,S 2200P-50 B C358 87-010-197-080 CAP, CHIP 0.01 DM S504...

  • Page 8: Wiring-1 (Main)

    http://www.xiaoyu163.com WIRING-1 (MAIN) 3 7 6 3 1 5 1 5 0 MAIN C. B(INSERTED PARTS) MAIN C. B(CHIP PARTS) J403 PHONES L403 R428 R417 C416 R413 R415 D414 C414 D411 Q403 J403 Q404 SPEAKER C427 C495 D410 C496 Q406 C436 SW301 R419...

  • Page 9: Schematic Diagram-1 (Main)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM-1 (MAIN) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 T218 w w w S301 u 1 6 3 http://www.xiaoyu163.com...

  • Page 10: Wiring-2 (Vcd/Front)

    http://www.xiaoyu163.com WIRING-2 (VCD/FRONT) 3 7 6 3 1 5 1 5 0 FRONT C. B (COMPONENT SIDE) VCD C. B (COMPONENT SIDE) R536 C503 JR211 R537 IC303 IC302 R546 R545 JR212 R379 C512 C288 C372 C287 C291 R291 R287 C286 C295 R284 R285...
  • Page 11 http://www.xiaoyu163.com 3 7 6 3 1 5 1 5 0 FRONT C. B TO/FROM MAIN C. B CN601 (CONDUCTOR SIDE) S101 (OPEN / CLOSE) VCD C. B (CONDUCTOR SIDE) REPEAT J301 VIDEO R294 R296 C303 R293 J301 Q301 C302 R304 R398 R203 R224...

  • Page 12: Schematic Diagram-2 (Vcd)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM-2 (VCD 1/2) 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 SWITCHING REGULATOR AC/DC CONVERTER w w w u 1 6 3 http://www.xiaoyu163.com...

  • Page 13: Schematic Diagram-3 (Vcd)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM-3 (VCD 2/2) 3 7 6 3 1 5 1 5 0 1/2 DIVIDE VCK OSC 1 3 9 4 2 2 9 6 5 1 3 OR GATE DELAY MUTE w w w u 1 6 3 NOISE SHAPER D/A CONVERTER http://www.xiaoyu163.com...

  • Page 14: Schematic Diagram-4 (Front)

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM-4 (FRONT) 3 7 6 3 1 5 1 5 0 D545-549 SLR,342-MG3F 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...

  • Page 15: Voltage Chart

    http://www.xiaoyu163.com VOLTAGE CHART 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 16 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 17 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 18: Ic Description

    http://www.xiaoyu163.com IC DESCRIPTION IC, CXA1992AR 3 7 63 1515 0 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 19 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Description RF_I Input terminal by capacity combination of RF summing amplifier. 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 20 http://www.xiaoyu163.com IC, CXD2540Q 3 7 63 1515 0 Pin No. Pin Name Description Focus OK input. Used for SENS output and the servo auto sequencer. Spindle motor output filter switching output. Spindle motor on/off control output. Spindle motor servo control. High, when sampled value of GFS at 460Hz is high.
  • Page 21 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Description DA11 DA11 output when PSSL=1. GTOP output when PSSL=0. DA10 DA10 output when PSSL=1. XUGF output when PSSL=0. DA09 DA09 output when PSSL=1. XPLCK output when PSSL=0. DA08 DA08 output when PSSL=1. GFS output when PSSL=0. DA07 DA07 output when PSSL=1.
  • Page 22 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Description 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. Used when the number of tracks is 128 or more for the 2N-track MIRR jump and M track move of the auto sequencer.
  • Page 23 http://www.xiaoyu163.com IC, CL680-D1 3 7 63 1515 0 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 24 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Description Y OUT Video signal “Y” OUT. 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 25 http://www.xiaoyu163.com 3 7 63 1515 0 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 —...
  • Page 26 http://www.xiaoyu163.com IC, LC867248A-5H31 3 7 63 1515 0 Pin No. Pin Name Description O-SCONTM M62439SP control. open drain output. O-SCONTL O-TUDI Tuner control. CMOS output. I-TUDO Tuner control. O-TUCL Tuner control. CMOS output. O-COIN CD control. open drain output. I-SQOUT CD control.
  • Page 27 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Description 83-86 COM0-COM3 LCD common output. I-INIT Initial setting input. O-BEAT Beat selector output. “H” during selection. CMOS output . VSS3 — GND. VDD3 — O-QSDON Q sound ON/OFF output. “H” at ON. CMOS output . O-TUCE Tuner chip enable output.
  • Page 28 http://www.xiaoyu163.com IC, SM5878AN 3 7 63 1515 0 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.
  • Page 29 http://www.xiaoyu163.com IC, LC74781M-9017 3 7 63 1515 0 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 CTRL1 selector terminal.
  • Page 30 http://www.xiaoyu163.com 3 7 63 1515 0 Pin No. Pin Name Description ______________ Controls whether or not to input the VSYNC signal to the SEPIN input. L: to input the CTRL3 ______________ ______________ VSYNC signal. H: not to input the VSYNC signal. ________ System reset input terminal.

  • Page 31: Ic Block Diagram

    http://www.xiaoyu163.com IC BLOCK DIAGRAM IC, BA5915FP IC, M62439SP 3 7 6 3 1 5 1 5 0 6.65K 6.65K 6.65K 6.65K MUTE IC, LA1837NL T.S.D: Thermal shut-down Resistors are in units of Ω. IC, SN74LV74APW 1 3 9 4 2 2 9 6 5 1 3 IC, LC72131 w w w u 1 6 3...

  • Page 32: Electrical Adjustment

    http://www.xiaoyu163.com ELECTRICAL ADJUSTMENT 3 7 6 3 1 5 1 5 0 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 http://www.xiaoyu163.com...

  • Page 33: Practical Service Figure

    http://www.xiaoyu163.com PRACTICAL SERVICE FIGURE LCD DISPLAY < TUNER SECTION > < TAPE SECTION > 3 7 6 3 1 5 1 5 0 < FM SECTION > Tape speed: 3000Hz+3%/–2% Wow & flutter: Less than 0.35% IHF Sensitivity: Less than 15dB (at 87.5MHz) (JIS, R.M.S) (THD 3%) Less than 19dB...

  • Page 34: Mechanical Exploded View 1/1

    http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW 1/1 3 7 6 3 1 5 1 5 0 P.C.B HLDER,CORD HLDR,LCD P.C.B HT-SINK HLDER,LOCKER P.C.B 1 3 9 4 2 2 9 6 5 1 3 P.C.B TN-21ZSC-1653 SHILD PLATE TRANS KSM-2131 BDM HLDR,TRANS w w w u 1 6 3 http://www.xiaoyu163.com...

  • Page 35: Mechanical Parts List 1/1

    REF. NO PART NO. KANRI DESCRIPTION 1 88-CG6-007-010 WINDOW,DISPLAY 26 87-036-368-010 MAGNET 2 88-CG6-005-010 PANEL,FRONT 27 88-CD9-210-010 BASE,CHUCK 3 84-CD8-083-010 BADGE,AIWA 30.5-5.2 2.5LEAD 28 84-CT5-209-010 PLATE,MAGNET 4 88-CL6-019-010 KEY,CD 29 88-CG6-004-010 DOOR,CD 5 88-CL6-007-010 LENS,CASS 30 88-CL6-031-010 WINDOW,CD 6 88-CG6-003-010 DOOR,CASS...

  • Page 36: Tape Mechanism Exploded View 1/1

    http://www.xiaoyu163.com TAPE MECHANISM EXPLODED VIEW 1/1 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 37: Tape Mechanism Parts List 1/1

    http://www.xiaoyu163.com TAPE MECHANISM PARTS LIST 1/1 3 7 63 1515 0 L 13942296513 u163 http://www.xiaoyu163.com...

  • Page 38: Cd Mechanism Exploded View 1/1

    http://www.xiaoyu163.com CD MECHANISM EXPLODED VIEW 1/1 3 7 63 1515 0 COVER SPINDLE MOTOR SPINDLE MOTOR L 13942296513 (M1) (M3) MOTOR C.B MOTOR-1 C.B CD MECHANISM PARTS LIST 1/1 REF. NO PART NO. KANRI DESCRIPTION 1 9X-262-587-010 MOTOR CHASSIS ASSY 2 92-626-907-010 GEAR(A) 6 98-848-376-110...

  • Page 39: Accessories/Package List

    http://www.xiaoyu163.com ACCESSORIES/PACKAGE LIST 3 7 63 1515 0 REF. NO PART NO. KANRI DESCRIPTION 1 88-CL5-628-010 ANT,LOOP 2 88-CG6-901-010 IB,H(EC-H)B 3 87-A90-312-010 PLUG,CONVERSION WTN-1157R1 4 88-CG6-951-010 RC UNIT,RC-8AT05 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 40 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111 Printed in Singapore 931196 http://www.xiaoyu163.com...

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