Aiwa HT-DV90 Service Manual
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Aiwa HT-DV90 Service Manual

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3 7 63 1515 0
SERVICE MANUAL
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L 13942296513
DVD STEREO SYSTEM
This Service Manual is the "Revision Publishing" and replace
"Simple Manual" (S/M Code No. 09-01B-359-3T1).
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http://www.xiaoyu163.com
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S/M Code No. 09-01C-359-3R1
http://www.xiaoyu163.com
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BASIC DVD/CD MECHANISM: MGD-F6103A
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  • Page 1 HT-DV90 U (S) K(S) EZ(S) 3 7 63 1515 0 SERVICE MANUAL L 13942296513 DVD STEREO SYSTEM BASIC DVD/CD MECHANISM: MGD-F6103A This Service Manual is the ”Revision Publishing” and replace “Simple Manual” (S/M Code No. 09-01B-359-3T1). u163 S/M Code No. 09-01C-359-3R1...

  • Page 2: Table Of Contents

    http://www.xiaoyu163.com TABLE OF CONTENTS 3 7 63 1515 0 SPECIFICATIONS ..................................3 ~ 4 PROTECTION OF EYES FROM LASER BEAM DURING SERVING .................... 5 ACCESSORIES LIST ..................................6 ELECTRICAL MAIN PARTS LIST ............................7 ~ 23 TRANSISTOR ILLUSTRATION ..............................24 BLOCK DIAGRAM - 1 (OVERALL) ...............................

  • Page 3: Specifications

    SPECIFICATIONS -1/2 3 7 63 1515 0 [EZ, K Models] General Power requirements 230 V AC, 50 Hz Main unit HT-DV90 Power consumption 85 W Power consumption 4W in standby mode FM tuner section Dimensions 430 (W) x 70 (H) x 311 (D) mm Tuning range 87.5 MHz to 108 MHz...
  • Page 4 SPECIFICATIONS -2/2 3 7 63 1515 0 [U Model] General Power requirements 120 V AC, 60 Hz Main unit HT-DV90 Power consumption 85 W Power consumption 4W in standby mode FM tuner section Dimensions 430 (W) x 70 (H) x 311 (D) mm Tuning range 87.5 MHz to 108 MHz...
  • Page 5 http://www.xiaoyu163.com PROTECTION OF EYES FROM LASER BEAM DURING SERVICING -1/1 3 7 63 1515 0 CAUTION This set employs laser. Therefore, be sure to follow carefully the instructions below when servicing. Use of controls or adjustments or performance of procedures other than those specified herin may result in hazardous radiation WARNING! exposure.
  • Page 6 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC O AS1001 SQ-X1A-755-Z00 MANUAL,INSTRUCTION...
  • Page 7 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC DVD MAIN SC-US1-E10-4ZF C-CAP,0.1U-25 Z DVD MAIN SC-US1-E10-4ZF C-CAP,0.1U-25 Z...
  • Page 8 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC DVD MAIN SR-J10-DJ4-73T C-RES,47K-1/10W J...
  • Page 9 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC DVD MAIN SR-J10-DJ1-52T C-RES,1.5K-1/10W J...
  • Page 10 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC FRONT SR-J10-DJ1-02T C-RES,1K-1/10W J...
  • Page 11 Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers. Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC FUNCTION SC-US1-H10-3KC CAP,CHIP...
  • Page 12 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC FUNCTION SR-J10-DJ7-50T C-RES,75-1/10W J...
  • Page 13 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SC-US1-H47-1JA C-CAP,470P-50 J...
  • Page 14 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SC-US1-H22-2KC C-CAP,2200P-50 K...
  • Page 15 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SC-EA1-VH1-00T CAP,E 10U-35 MAIN SC-US1-E10-4ZF C-CAP,0.1U-25 Z...
  • Page 16 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SC-US1-H47-3ZF C-CAP,0.047U-50 Z MAIN SC-US1-H47-3ZF C-CAP,0.047U-50 Z...
  • Page 17 Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers. Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SV-D1S-S13-3MT DIODE,1SS133T-77...
  • Page 18 Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers. Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SV-TKR-C11-4S0 C-TR,KRC114S...
  • Page 19 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SR-J10-DJ4-71T C-RES,470-1/10W J...
  • Page 20 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SR-J10-DJ4-73T C-RES,47K-1/10W J...
  • Page 21 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SR-J10-DJ2-22T C-RES,2.2K-1/10W J MAIN SR-J10-DJ6-82T C-RES,6.8K-1/10W J...
  • Page 22 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SR-J10-DJ6-82T C-RES,6.8K-1/10W J MAIN SR-J10-DJ6-82T C-RES,6.8K-1/10W J...
  • Page 23 Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC MAIN SR-G2A-NJ8-21H RES,M/F 820-2W J...
  • Page 24 http://www.xiaoyu163.com TRANSISTOR ILLUSTRATION -1/1 3 7 63 1515 0 E C B E C B E C B KSB1151 KSC2316 KRA102M KTC3198 KRC102M KSB811Y KSD1021 G D S 2SK2654 KRA102S KRC102S KRC114S KTD1304 L 13942296513 u163 -24- http://www.xiaoyu163.com...
  • Page 25 http://www.xiaoyu163.com BLOCK DIAGRAM -1/1 (OVERALL SECTION) 3 7 6 3 1 5 1 5 0 FRONT C.B, KEY1 C.B(1/2), KEY2 C.B 8MHz IC61 74VHC04 TMP87PS71F ES4318 IC14 CS4955 DVD MAIN C.B SAA6579TV1 <EZ,K> POWER C.B TA7317P JK78 MAIN C.B IC32,IC42,IC52 IC39 M62446FP IC31,IC41,IC51 TA2022-100...
  • Page 26 http://www.xiaoyu163.com WIRE HARNESS DIAGRAM-1/1 3 7 6 3 1 5 1 5 0 FUNCTION C.B FFC13 FFC11 TUNER CN11 FFC12 PACK MAIN C.B FFC10 CARD CABLE 17P 1 3 9 4 2 2 9 6 5 1 3 CN12 CN65 DVD MAIN C.B CN62 DVD/CD...

  • Page 27: Q Q

    http://www.xiaoyu163.com SCHEMATIC DIAGRAM - 1/7 (MAIN SECTION) -1/2 TO MAIN C.B-2/2 12A-18A 3 7 6 3 1 5 1 5 0 MAIN C.B-1/2 AK4112A-VF-E2 CM0/ (1/4) CM1/ (1/4) OCKS1/ (1/3) CMPCLK CS_CE OCKS0/ (2/5) (1/3) VD2( (1/4) (1/5) CS_CK AUD2 CS_DA DIF0/ DIF1/...
  • Page 28 http://www.xiaoyu163.com SCHEMATIC DIAGRAM - 2/7 (MAIN SECTION) -2/2 3 7 6 3 1 5 1 5 0 MAIN C.B-2/2 CLASS-T DIGITAL AUDIO AMP OP AMP(AND GATE) (1/3) (6/11) (2/4) (1/6) (1/3) -24V (1/13) -24V (2/5) (1/11) (10/13) +24V +24V OUT4 DVDD OUT3 OUT2 OUT1...
  • Page 29 http://www.xiaoyu163.com SCHEMATIC DIAGRAM - 3/7 (FRONT/KEY1/KEY2 SECTION) 3 7 6 3 1 5 1 5 0 TO MAIN C.B-2/2 CN71 VIA FFC71 TO MAIN C.B-2/2 CN72 VIA FFC72 FRONT C.B (REMOTE SENSOR) KEY1 C.B JK78 PHONES KEY MATRIX 0 KEY MATRIX 1 KEY MATRIX 2 TO CHASSIS 1 3 9 4 2 2 9 6 5 1 3...
  • Page 30 http://www.xiaoyu163.com SCHEMATIC DIAGRAM - 5/7 (POWER SECTION) -Reference Drawing- <EZ, K> 3 7 6 3 1 5 1 5 0 POWER C.B 8,9,10 1 3 9 4 2 2 9 6 5 1 3 Note: A POWER circuit board is assembly exchange. The circuit board diagram and the schematic diagram have carried the reference drawing.
  • Page 31 http://www.xiaoyu163.com WIRING - 6/8 (POWER C.B) -Reference Drawing- <EZ,K> 3 7 6 3 1 5 1 5 0 POWER C.B R623 PT63 F604 R614 CN61 L602 Q612 Q611 C630 D664 IC65 C631 Q618 IC67 R612 PT62 R634 B603 T601 VT61 C638 CN63 R601...
  • Page 32 http://www.xiaoyu163.com SCHEMATIC DIAGRAM - 6/7 (POWER SECTION) -Reference Drawing- <U> 3 7 6 3 1 5 1 5 0 POWER C.B 8,9,10 1 3 9 4 2 2 9 6 5 1 3 Note: A POWER circuit board is assembly exchange. The circuit board diagram and the schematic diagram have carried the reference drawing.
  • Page 33 http://www.xiaoyu163.com SCHEMATIC DIAGRAM - 7/7 (DVD MAIN SECTION) TO DVD MECHANISM VIA FFC1 3 7 6 3 1 5 1 5 0 DVD MAIN C.B R197 4.7k R198 4.7k R213 4.7k R200 4.7k BYTE R250 DQ15 R108 /A-1 206 205 204 203 202 201 198 197 196 195 194 193...

  • Page 34: Lcd Display - 1/1

    http://www.xiaoyu163.com LCD DISPLAY - 1/1 3 7 63 1515 0 GRID ASSIGHNMENT ANODE CONNECTION L 13942296513 u163 -43- http://www.xiaoyu163.com...

  • Page 35: Ic Block Diagram

    http://www.xiaoyu163.com IC BLOCK DIAGRAM -1/4 3 7 63 1515 0 IC, BR24C16F 16kbits EEPROM ARRAY Pin name I / O Function 11bits 8bits Power supply Ground (0V) ADDRESS SLAVE WORD DATA DECODER REGISTER 11bits ADDRESS REGISTER A0, A1, A2 Out of use. Please connect to GND. Serial clock input START STOP...
  • Page 36 http://www.xiaoyu163.com IC BLOCK DIAGRAM -3/4 3 7 63 1515 0 IC, NJU3713G SYMBOL FUNCTION DATA Parallel Converts 15 P2 Data Output Terminals 16 P3 17 P4 1 P5 2 P6 Parallel Converts 3 P7 Data Output Terminals 4 P8 DATA Serial Data Input Terminal 6 P9 Clock Signal Input Terminal...
  • Page 37 http://www.xiaoyu163.com IC BLOCK DIAGRAM -4/4 3 7 63 1515 0 IC, TA2022-100 VBOOT1 VPP1 OAOUT1 Processing INV1 & OUT1 VN10 Modulation AGND VNN1 2.5V FBKOUT1 BIASCAP FBKGND1 MUTE HMUTE VBOOT2 VPP2 OAOUT2 Processing OUT2 INV 2 & VN10 Modulation AGND VNN2 FBKOUT2 FBKGND2...

  • Page 38: Ic Description

    http://www.xiaoyu163.com IC DESCRIPTION -2/9 (AK4527B-VQ) -1/2 3 7 63 1515 0 Pin No. Pin Name Description SDOS SDTO Source Select Pin (Note 1). "L": Internal ADC output, "H": DAUX input Control Mode Select Pin. "L": 3-wire Serial, "H": I C Bus Soft Mute Pin (Note 1).

  • Page 39: Ic Description

    http://www.xiaoyu163.com IC DESCRIPTION -2/9 (AK4527B-VQ) -2/2 3 7 63 1515 0 Pin No. Pin Name Description Common Voltage Output Pin, AVDD/2. Large external capacitor around 2.2µF is used to reduce VCOM power-supply noise. VREFH Positive Voltage Reference Input Pin, AVDD AVDD –...
  • Page 40 http://www.xiaoyu163.com IC DESCRIPTION -3/9 (AK4112A-VF-E2) -1/1 3 7 63 1515 0 Pin No. Pin Name Description DVDD – Digital Power Supply Pin, 3.3 V DVSS – Digital Ground Pin TVDD – Input Buffer Power Supply Pin, 3.3 V or 5 V Validity Flag Output Pin in Parallel Mode.
  • Page 41 http://www.xiaoyu163.com IC DESCRIPTION - 4/9 (CS493263-CL) -1/1 3 7 63 1515 0 Pin No. Pin Name Description – Digital power supply. Normally +2.5 V DGND – Digital ground AUD3 SPDIF transmitter output/Digital audio output (N.C) Host write strobe pin (connected to GND with an external resistor) Host parallel output enable pin (pulled up with an external resistor) CS_DA SPI Serial data input pin...
  • Page 42 http://www.xiaoyu163.com IC DESCRIPTION - 5/9 (TMP87PS71F) -1/2 3 7 63 1515 0 Pin No. Pin Name Description MREQ (DVD) – DVD interface REMOTE-IN Remote Control Sensor Data Input RDS_CLK RDS_DATA FREQ (DVD) – DVD interface EVOL_DATA EVOL_CLK ELECTRONIC VOL. IC (M62446) DATA/CLK/STB port EVOL_CE (STB) –...
  • Page 43 http://www.xiaoyu163.com IC DESCRIPTION - 5/9 (TMP87PS71F) -2/2 3 7 63 1515 0 Pin No. Pin Name Description FIP segment control port L 13942296513 –Vkk – FIP power supply port (-30 V) OPTION – Option control port Sampling freq. (96 kHz) sensing port ("H") Error sensing port ("H") PROTECT-IN Protect input port ("L")
  • Page 44 http://www.xiaoyu163.com IC DESCRIPTION - 6/9 (CS4955) -1/1 3 7 63 1515 0 Pin No. Pin Name Description 1 ~ 8 V0 ~ V7 Digital video data inputs FIELD/CB Video field ID. Selectable polarity or composite blank __________ HSYNC/CB Active "L" horizontal sync, or composite blank signal _______ VSYNC Active "L"...
  • Page 45 http://www.xiaoyu163.com IC DESCRIPTION -7/9 (ES4318F) -1/4 3 7 63 1515 0 Pin No. Pin Name Description – 3.65 V ± 150 mV 2 ~ 7 LA4 ~ LA9 Device address output – Ground – 3.65 V ± 150 mV 10 ~ 16 LA10 ~ LA16 Device address output –...
  • Page 46 http://www.xiaoyu163.com IC DESCRIPTION -7/9 (ES4318F) -2/4 3 7 63 1515 0 Pin No. Pin Name Description PBCK Audio receive bit clock APLLCAP Analog PLL Capacitor Crystal input XOUT Crystal output – 3.65 V ± 150 mV – Ground 53 ~ 58 DMA0 ~ DMA5 DRAM address bus –...
  • Page 47 http://www.xiaoyu163.com IC DESCRIPTION -7/9 (ES4318F) -3/4 3 7 63 1515 0 Pin No. Pin Name Description ________ VSYNCH Vertical synch for screen video interface, programmable for rising or falling edge, active "L". ________ HSYNCH Horizontal sync for screen video interface, programmable for rising or falling edge, active "L". –...
  • Page 48 http://www.xiaoyu163.com IC DESCRIPTION -7/9 (ES4318F) -4/4 3 7 63 1515 0 Pin No. Pin Name Description 185 ~ 191 LD5 ~ LD11 Device data bus – Ground – 3.65 V ± 150 mV 194 ~ 197 LD12 ~ LD15 Device data bus _______ LWRLL Device write enable, active "L".
  • Page 49 http://www.xiaoyu163.com IC DESCRIPTION -8/9 (HY29F400BT90) -1/2 3 7 63 1515 0 Pin No. Pin Name Description Address, active "H". In word mode, these 18 inputs select one of 262, 144 (256K) words within 1 ~ 8 A15 ~ A8 the array for read or write operations. In Byte mode, these inputs are combined with the DQ15/ A-1 input (LSB) to select one of 524,288 (512K) bytes within the array for read or write operations.
  • Page 50 http://www.xiaoyu163.com IC DESCRIPTION -8/9 (HY29F400BT90) -2/2 3 7 63 1515 0 Pin No. Pin Name Description Data Bus, active "H". In word mode, these pins provide a 16-bit data path for read and write DQ15/A -1 operations. In Byte mode, DQ [7:0] provide an 8-bit data path and DQ [15]/A [-1] is used as the LSB of the 19-bit byte address input.
  • Page 51 http://www.xiaoyu163.com IC DESCRIPTION -9/9 (HY57V161610DTC8) -1/1 3 7 63 1515 0 Pin No. Pin Name Description – Power supply. Power supply for internal circuit and input buffer. 2, 3 DQ0, DQ1 Data input/output. Multiplexed data input/output pin. VSSQ – Ground. Power supply for DQ. 5, 6 DQ2, DQ3 Data input/output.

  • Page 52: Mechanical Exploded View 1/1

    http://www.xiaoyu163.com MECHANICAL EXPLODED VIEW 1/1 3 7 6 3 1 5 1 5 0 FUNCTION C.B FRONT C.B KEY1 C.B 1 3 9 4 2 2 9 6 5 1 3 KEY2 C.B w w w u 1 6 3 -63- http://www.xiaoyu163.com...

  • Page 53: Mechanical Main Parts List 1/1

    Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC O MC1001 SG-X1A-313-ZC3 ORNAMENT,FRONT...

  • Page 54: Color Name Table

    http://www.xiaoyu163.com COLOR NAME TABLE -1/1 3 7 63 1515 0 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...

  • Page 55: Mechanism Exploded View 1/1

    http://www.xiaoyu163.com MECHANISM EXPLODED VIEW - 1/1 3 7 63 1515 0 L 13942296513 u163 -66- http://www.xiaoyu163.com...

  • Page 56: Mechanism Main Parts List 1/1

    Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC O SD1001 SF-6C1-001-000 CLAMPER BKT...

  • Page 57: Other Parts List 1/1

    Components marked X and R are not designated as spare parts for after sales service, and will not be stocked at the spare parts centers. UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL HT-DV90 HT-DV90 HT-DV90 EZSC SP-P1A-093-Z00 BAG,POLY(FR) SP-P1A-093-Y00 BAG,POLY(RE)

  • Page 58: Speaker Exploded View 1/1

    http://www.xiaoyu163.com SPEAKER EXPLODED VIEW -1/1 3 7 63 1515 0 L 13942296513 u163 -69- http://www.xiaoyu163.com...

  • Page 59: Speaker Parts List 1/1

    UNIT-NAME ! C REF-NO PARTS-NO PARTS-NAME SUFFIX&MODEL TS-W90 SX-F90 SX-F90 SX-R90 WOOFER CENTER FRONT SURRUND O MC1001 SG-B1A-104-H41 BADGE,AIWA(MOLD) O MC1002 SM-H1A-159-MP0 FRAME,NET O MC1003 SA-S10-FP2-01S SPEAKER,4INCH(F/C) O MC1003 SA-S10-FP2-03S SPEAKER,4INCH(REAR) O MC1004 SM-H1A-160-MR0 BAFFLE PANEL(F/R/C) X MC1005 SH-S1A-124-000 ABSORBOR(F/R/C) X MC1006...

  • Page 60: Speaker Other Parts List 1/1

    http://www.xiaoyu163.com SPEAKER OTHER PARTS LIST -1/1 = ! SAFTY PARTS = Components marked All components used on this model at the production line are shown in this service manual. 3 7 63 1515 0 However, please note that not all components will be available as spare parts for after-sales service. Components marked S and O are designated as spare parts for service and will be stocked at the spare parts centers.

  • Page 61: Speaker Disassembly Instruction

    http://www.xiaoyu163.com SPEAKER DISASSEMBLY INSTRUCTION -1/2 3 7 63 1515 0 Preparation: A plastic head hammer (or rubber head hammer), a cut chisel 2) It put on reverse and also open the crevice by the side of op- 1. FRONT, SURROUND, CENTER Speaker Decomposition posite.
  • Page 62 http://www.xiaoyu163.com SPEAKER DISASSEMBLY INSTRUCTION -2/2 3 7 63 1515 0 2) Being cautious of a boss (four places), extend a crevice and 2. SUB WOOFR Decomposition Method remove a panel. 1) Extend a crevice, putting a cut chisel into the crevice between a net and a cabinet, and prying it lightly.

  • Page 63: Amplifier Adjustment

    http://www.xiaoyu163.com AMPLIFIER ADJUSTMENT -1/1 3 7 63 1515 0 L 13942296513 1. DC OFFSET ADJUSTMENT Settings Oscillator (DC range) FUNCTION: DVD/CD (NO DISC) Input side: With no input. Output side: Dummy resistor (6 ohms) Test point: SP OUT, JK31 (FRONT Lch,Rch) JK41(SURROUND Lch,Rch / CENTER / SUB WOFER) Adjustment location: VR31 (FRONT Lch) VR32 (FRONT Rch)
  • Page 64 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 2–11, IKENOHATA 1–CHOME, TAITO-KU, TOKYO 110-8710, JAPAN TEL:03 (3827) 3111 H251941 Printed in Singapore http://www.xiaoyu163.com...

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