Aiwa HT-DV2300 Service Manual Download Page 43

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-43-

IC BLOCK DIAGRAM -3/4

IC, KA3031

NOTES:

SW = Logic switch

MSC = Motor speed control

D = Output driver

−

M
S
C

−

MUTE4
MUTE3
MUTE2
MUTE1

ALL MUTE

T.S.D

O.V.P

−

2.5V

IN1.2

OUT1

IN2.1

IN2.2

OUT2

IN3.1

IN3.2

OUT3

IN4.1

IN4.2

OUT4

CTL1

DO2.1

DO2.2

PGND3

DO3.1

DO3.2

PGND2

PGND1

DO4.1

DO4.2

DO5.1

DO5.2

DO6.1

FWD1

REV1

CTL

FWD2

REV2

SGND

MUTE1 MUTE2 MUTE3 MUTE4 PVCC1 DO6.2

DO1.2

DO1.1

PVCC2

OPOUT

OPIN(

−

)

OPIN(+)

RES50

SVCC

REF

REG050

REG50

IN1.1

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TEL 13942296513

TEL 13942296513 QQ 376315150 892498299

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Summary of Contents for HT-DV2300

Page 1: ...09 028 363 6N1 This Service Manual does not includeis speaker system SX AVR30 These items will be issued in the next Supplement AV SNW31 XD SPM823 SX AVR30R SX AVR30F Satellite speakers SX AVR30F SX A...

Page 2: ...B 30 SCHEMATIC DIAGRAM 7 8 FRONT KEY SECTION 31 WIRING 4 6 FRONT C B 32 WIRING 5 6 KEY C B 33 SCHEMATIC DIAGRAM 8 8 POWER SECTION 34 WIRING 6 6 POWER C B 35 VOLTAGECHART 36 38 WAVEFORMS 39 LCD DISPLA...

Page 3: ...s 1992 1999 Dolby Laboratories All rights reserved DTS and DTS Digital Out are trademarks of Digital Theater Systems Inc Power supply 120 V AC 60 Hz Power consumption 16 W Power consumption in standby...

Page 4: ...hedsafbrydereer ude af funktion Undg uds ttelse for str ling This Compact Disc player is classified as a CLASS 1 LASER product The CLASS 1 LASER PRODUCT label is located on the rear exterior This set...

Page 5: ...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 5 ACCESSORIES PARTS LIST 1 1 XD SPM823 UBC...

Page 6: ...e parts can not be fixed Top Case A A A A A A A Tray Door Disc Tray Front Panel Front Cable Stopper Stopper CABINET DISASSEMBLY 1 Top Case 1 Release 7 screws A See Fig 2 1 2 Lift the top case with hol...

Page 7: ...e 4 screws F at Power circuit 11 Disassemble power circuit board from Main chassis CIRCUIT BOARD DISASSEMBLY Note Before removing the main circuit board be sure to shortcircuit the laserdiode output l...

Page 8: ...942 C CAP CER 1UF 10V a DVD X C 254 SC H11 05D 942 C CAP CER 1UF 10V a DVD X C 255 SC H11 04K 942 C CAP 0 1UF 50V a DVD X C 258 SC H11 05D 942 C CAP CER 1UF 10V a DVD O C 261 SC H81 06F 611 C CAP E 10...

Page 9: ...SC H12 25F 944 C CAP 2 2UF 16V a DVD X C 310 SC H11 03K 562 C CAP 0 01UF 50V a DVD O C 311 SC H84 76C 611 C CAP E 47UF 6 3V a DVD X C 314 SC H11 04K 942 C CAP 0 1UF 50V a DVD X C 316 SC H11 04K 942 C...

Page 10: ...CER 27PF 50V a DVD O C 562 SC H84 76C 611 C CAP E 47UF 6 3V a DVD X C 563 SC H12 25F 944 C CAP 2 2UF 16V a DVD O C 570 SC H84 76C 611 C CAP E 47UF 6 3V a XD SPM823 UBC1 DVD X C 571 SC H12 25F 944 C C...

Page 11: ...R H02 22C 622 RES 22 1 16W a DVD X R 254 SR H02 22C 622 RES 22 1 16W a DVD X R 255 SR H02 22C 622 RES 22 1 16W a DVD X R 256 SR H02 22C 622 RES 22 1 16W a DVD X R 257 SR H02 22C 622 RES 22 1 16W a DVD...

Page 12: ...ES 1K 1 16W a DVD X R 2M9 SR H10 02C 622 RES 10K 1 16W a DVD X R 2N0 SR H12 02C 622 C RES 12K 1 16W a DVD X R 2N1 SR H10 01C 622 RES 1K 1 16W a DVD X R 2N2 SR H56 01C 622 RES 5 6K 1 16W a DVD X R 2N3...

Page 13: ...a DVD X R 416 SR H10 02C 622 RES 10K 1 16W a DVD X R 417 SR H18 01C 622 RES 1 8K 1 16W a DVD X R 418 SR H10 02C 622 RES 10K 1 16W a DVD X R 419 SR H33 00C 622 RES 330 1 16W a DVD X R 420 SR H33 00C 62...

Page 14: ...ONT X R 933 SR D33 00F 608 RES 330 1 6W a FRONT X R 939 SR D22 00F 608 RES 220 1 6W a FRONT X R 944 SR D10 02F 608 RES 10K 1 6W a FRONT X R 951 SR D10 03F 608 RES 100K 1 6W a FRONT X R 952 SR D10 03F...

Page 15: ...K 1 6W a JACK X R 622 SR D02 22F 608 RES 22 1 6W a JACK X R 624 SR D10 01F 608 RES 1 0K 1 6W a JACK X R 633 SR D47 01F 608 RES 4 7K 1 6W a JACK X R 634 SR D56 01F 608 RES 5 6K 1 6W a JACK X R 6M2 SR D...

Page 16: ...01 000 9AC DIODE EU01W a POWER O D 109 SD R20 200 0AB DIODE HER202 BK a POWER S D 110 SD D01 000 9AC DIODE EU01W a POWER O D 111 SD RRE 000 29A DIODE 1N17 a POWER O F 101 S5 850 27B 000 FUSE 1600MA 25...

Page 17: ...rs they are not stocked as they are not the initial order items The connectors are available after they are supplied from connector manufacturers upon the order is received ELECTRICAL PARTS LIST 10 10...

Page 18: ...osite FIL TER Y Pr SW602 S OUT COMP OUT SWICHING VIDEO SW CVBS Pr R C Pb Y G CVBS Y C L R VF AC 120V 60Hz POWER BOARD VF 27VA 8V 5 2VA 5V_D 5V_A 12VA 3 3V_M1 AD 0 7 LADD4 5 LA0 3 AD 00 15 MDP FDO TDO...

Page 19: ...HOTO COUPLER D109 D103 D106 D110 D107 D108 ZD101 IC103 KIA78R12PI 12V REG IC105 KA78R08TSTU 8V REG IC106 KA78R33TSTU 8V REG IC107 KA78R33TSTU 8V REG L103 C123 Q107 BD101 L105 C116 C124 5 6 7 3 4 2 1 1...

Page 20: ...DVD SERVO IC2A1 HD153702TF FDO TDO FMO Load open close loading control UCOM I F DVD A B C D FE TE PI SBADD 4 4 DVD CD RF IC203 SDRAM 16 9 ICADDR 0 8 ICDATA 00 15 DO 0 7 AO 0 5 DVD_DATA 0 7 MON MDP SP...

Page 21: ...3 DA_BCK DA_LRCK DA_XCK 4 DAC_L0 DAC_L1 DAC_RST A V JACK I F C R B CVBS G R Y B G CVBS V_MUTE ZISENB RD PWED IC301 HS353106 CPLD I O PORT IC502 AT93C56 10SC SI EEPROM IC501 NDV8601 PANTERA IC305 HY57...

Page 22: ...VD7 To DVD 4 5 MEMORY SECTION 1H 5H To DVD 2 5 DRIVE RF SECTION 1E 12E INVERTER 5D 7D 8D 9D 10D 11D 12D 13D 14D 15D 16D 22D 21D 20D 17D 19D 23D 18D 1H 2H 3H 4H 5H 4E 2E 3E 5E 9E 10E 8E 11E 12E 7E 1E 6...

Page 23: ...DVD 1 5 DVD DSP SECTION 12E To DVD 3 5 PANTERA SECTION 1J 3J To DVD 4 5 MEMORY SECTION 10F 11F To DVD 4 5 MEMORY SECTION 12F To SLED MOTOR C B CN1 To DVD MECHA PICK UP C B SPINDLE MOTOR LOADING MOTOR...

Page 24: ...8 AD19 AD20 AD21 14A 13A 18A 17A 16A 15A 8D 7D 1D 2D 3D 4D 17D 18D 19D 20D 21D 22D 23D 6D 11D 12D 15D 5D 14D 13D DVD0 DVD1 DVD2 DVD3 DVD4 DVD5 DVD6 DVD7 9D 10D 2J 1J 3J 16D 7A 6A 4A 5A 8A 9A 10A MD0 M...

Page 25: ...F 9F 1F 11F 10F 6F 5F 1H 3H 2H 4H 5H 31A 32A 33A AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 AD8 AD9 AD10 AD11 AD12 AD13 AD14 AD15 AD16 AD17 AD18 AD19 AD20 AD21 12 11 10 9 8 7 6 5 4 3 2 1 2A 30A 29A 3A 28A 27A 26...

Page 26: ...N 1B 16B To DVD 4 5 MEMORY SECTION 1C 7C To DVD 4 5 MEMORY SECTION 1 4 10 12 S VIDEO C SIGNAL AUDIO L SIGNAL AUDIO R SIGNAL OPTICAL SIGNAL COMP VIDEO SIGNAL S VIDEO Y SIGNAL w w w x i a o y u 1 6 3 c...

Page 27: ...ECTOR 1 30 31 60 1 4 8 5 1 10 1 9 1 1 2 22 21 2 23 22 25 26 1 2 1 2 14 15 1 2 19 20 E B C C230 120 61 1 16 17 32 33 48 49 64 To JACK C B P6401 To DVD MECHA PICK UP C B To SLED MOTOR C B CN1 WIRING 1 6...

Page 28: ...C 1 12 13 24 25 36 37 44 1 4 8 5 1 4 8 5 1 10 20 11 1 24 48 25 1 4 8 5 1 4 8 5 WIRING 2 6 DVD C B Bottom View 28 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2...

Page 29: ...4 S VIDEO OUT VIDEO OUT Y PB CB PR CR R L COMPONENT VIDEO OUT PROGRESSIVE SCAN AUDIO OUT 2 AUDIO OUT 1 S VIDEO C SIGNAL AUDIO L SIGNAL AUDIO R SIGNAL OPTICAL SIGNAL COMP VIDEO SIGNAL S VIDEO Y SIGNAL...

Page 30: ...OGRESSIVE SCAN JK602 3 1 DIGITAL OUT OPTICAL 26 To DVD C B P4601 WIRING 3 6 JACK C B 30 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 2...

Page 31: ...SW904 SW902 R908 8 2K R909 15K R910 27K SW901 DISC CHANGE SW904 DISC SKIP SW902 ENTER SW913 POWER STANDBY ON RANDOM SW912 REPEAT SW911 SW910 CLEAR SW909 5 SW908 SW907 SW906 SW905 4 3 2 1 R907 4 7K R90...

Page 32: ...1 19 1 2 7 8 1 3 2 6 4 3 1 WIRING 4 6 FRONT C B 32 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 w w w x i a o y u 1...

Page 33: ...2 STANDBY ON LED901 1 3 WIRING 5 6 KEY C B 33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A B C D E F G H I J K L M N O P Q R S T U www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4...

Page 34: ...REG IC106 KA78R33TSTU 3 3V REG IC103 KIA78R12PI 12V REG IC107 KA78R33TSTU 3 3V REG 6 3V GDZJ5 6B ICP N10 HER202 C1 To DVD 4 5 C B MEMORY SECTION P3101 To DVD 4 5 C B MEMORY SECTION P3102 POWER C B 5V...

Page 35: ...ING 6 6 POWER C B 35 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 A B C D E F G H I J K L M N O P Q R S T U www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q...

Page 36: ...27 2 05 2 07 1 2 1 39 3 23 0 3 24 MODE PIN NO 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 1...

Page 37: ...0 49 0 0 53 50 51 52 54 48 47 0 I C 3 F 1 STOP PLAY MODE PIN NO 0 0 0 0 0 0 0 0 3 13 3 12 3 2 3 2 0 0 0 0 0 0 0 0 0 0 3 19 0 0 0 0 0 0 0 0 0 0 0 3 17 3 2 0 0 3 11 0 0 61 1 07 0 0 0 0 0 0 0 6 0 0 0 0...

Page 38: ...P A N T E R A I C 5 0 1 I C 5 0 2 STOP PLAY MODE PIN NO 0 0 5 03 5 03 0 0 5 1 5 1 1 2 3 4 0 0 5 04 5 04 0 0 5 03 5 04 5 6 7 8 I C 5 0 3 I C 5 0 6 0 0 3 1 3 1 5 03 5 03 0 0 1 2 3 4 0 0 0 5 05 0 5 05 5...

Page 39: ...C Level 280mV Mode Holdoff 3 Ch3 1 00V T Slope T IC501 Pin 99 MPEG Clock 27MHz IC501 Pin 112 Component Pb IC501 Pin 110 Component Pr TURN from Motor Drive Reverse turn IC2M1 17 Sensor 1 disc position...

Page 40: ...P9 P8 P7 P6 P5 P4 P3 P2 P1 NP NP F F NOTE 1 F F Filament 2 NP No pin 3 NC No connection 4 DL Datum Line 5 1G 7G Grid P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 S1 S2 S3 S4 S5 S6 S...

Page 41: ...CDIN AD0 CS AOUTA AOUTB CMOUT REFERENCE FILT BMUTEC M1 M3 M2 MODE SELECT M0 1G Vcc 2G 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8...

Page 42: ...RA PWM A X Y High Voltage Port R51 R30 R31 R32 R33 R34 R35 RA R40 R41 R42 R43 R50 T0O Vdisp R66 R04 R03 R02 R01 R00 VDD AVDD R73 R72 R71 R70 R67 AN6 AN8 AN7 R27 R25 R24 R23 R22 R21 R20 R17 R16 R15 R1...

Page 43: ...P 2P 2P 2P 2P 2P 2P 2P 2 5V IN1 2 OUT1 IN2 1 IN2 2 OUT2 IN3 1 IN3 2 OUT3 IN4 1 IN4 2 OUT4 CTL1 DO2 1 DO2 2 PGND3 DO3 1 DO3 2 PGND2 PGND1 DO4 1 DO4 2 DO5 1 DO5 2 DO6 1 FWD1 REV1 CTL FWD2 REV2 SGND MUTE...

Page 44: ...A8 A7 A6 A5 A4 GND Bank Select Data Input Register Column Decoder Latency Burst Length Programming Register 512K x 16 512K x 16 Timing Register CLK CKE CS RAS CAS WE L U DQM LDQM LWCBR DQi LDQM LWE LR...

Page 45: ...T O DEFECT detection output terminal 27 MIRR O MIRROR and BLANK detection output terminal 28 MRSTB I Master reset reversal input terminal 29 SCLK I Serial I F clock input terminal 30 SDATA O Serial I...

Page 46: ...53 FON I 54 FOP 55 TRN I 56 TRP 57 SD I 58 SC 59 SB 60 SA 61 SUBI I SUB signal input terminal 62 SUBO O SUB signal output terminal 63 VCC_RF Power supply connection terminal RF system 64 NC Not connec...

Page 47: ...0 and bank 1 GM72V161621ET ELT Series contain 2048 row x 256 column x 16bits If A11 is Low bank 0 is selected and if A11 is High bank 1 is selected Row address AX0 to AX10 is determined by A0 to A10 l...

Page 48: ...M is Low the data is written Not used 3 3 V is applied VCCQ is for the output buffer Data is input and ouput from these pins These pins are the same as those of a conventional DRAM Ground is connected...

Page 49: ...ctional data to DRAM 18 VDD VDD 19 ADD0 O Address output to DRAM 20 ADD1 O Address output to DRAM 21 ADD2 O Address output to DRAM 22 ADD3 O Address output to DRAM 23 ADD4 O Address output to DRAM 24...

Page 50: ...D VDD 62 E_ST0 O DSP3B EMUL STATUS 0 63 E_ST1 O DSP3B EMUL STATUS 1 64 E_ST2 O DSP3B EMUL STATUS 2 65 GND GND 66 GPIO7 I O SERVO DSP GENERAL I O DSP_SENSE 67 GPIO6 I O SERVO DSP GENERAL I O 68 GPIO5 I...

Page 51: ...for adjusting the bias level e 104 REF I ADC REF BIAS 105 TESTOUT1 I O TEST OUT Default 0 106 TESTOUT1 I O TEST OUT Default 0 107 TESTOUT1 I O TEST OUT Default 0 108 TESTOUT1 I O TEST OUT Default 0 1...

Page 52: ...D 143 FG1 I SLED ENCODER1 INPUT 144 FG2 I SLED ENCODER2 INPUT 145 GND GND 146 DVDC16M I DVD FS384 INPUT 147 DVDLRCK I DVD FS INPUT 148 DVDADAT I DVD Audio data INPUT 149 DVDBCLK I DVD FS48 INPUT 150 T...

Page 53: ...from HOST 185 GND GND 186 RESET I Hardware Reset 187 PS0 I O bi directional data to Host 188 VDD VDD 189 PS1 I O bi directional data to Host 190 PS2 I O bi directional data to Host 191 PS3 I O bi dir...

Page 54: ...ignal CD 208 SYNC D O MPEG data sector sync Signal CD DOT IC DESCRIPTION 3 3 HDC25D811B 6 6 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL...

Page 55: ...283 280 463 463 463 A00 452 A46 A47 A48 A50 A49 467 Ref No MC1 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q...

Page 56: ...416 032 034 033 035 416 416 416 416 416 037 038 030 024 022 023 021 020 036 A03 A01 A02 A04 Ref No SD1 w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1...

Page 57: ...UP DOWN a O SD1012 S0 40R 004 7D0 RUBBER DAMPER DARK GR a X SD1013 S8 71R 000 1K0 PWB ASSY DPM1 JUNCTION DVD CD a O SD1014 S0 40R 004 7B0 RUBBER DAMPER a O SD1016 S4 70R 005 0A0 GEAR ASSY FEED a O SD1...

Page 58: ...01 Is 5 2V applied to IC102 Pin 1 Is there a DC voltage at the terminal of BD101 Check R127 128 SHUTDOWN CKT 1 Power SMPS Circuit No FLD Is 5 2VA section working Replace SMPS trans T101 Replace the in...

Page 59: ...y Is P3901 Pin 15 16 19 normal The waveform on 3 5 7 pin of IC503 normal Check the oscillation Check short OK Replace IC501 or IC3F1 Check power Refer to power If power is normal OK POWER ON 1 1 YES Y...

Page 60: ...Replace B D Check Front Reconnect it Refer to SERVO part Check the connection of MD AUDIO ABNORMAL OPEN CLOSE ABNORMAL C Video abnormal Check Video jack YES If OK YES If OK YES If OK Refer to Video p...

Page 61: ...Replace B D PICTURE ABNORMAL F Disc Error Check Disc YES If OK YES If OK Refer to Servo part Replace B D DISC ERROR www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0...

Page 62: ...ignal YES YES YES YES YES YES YES NO NO NO NO ELECTRICAL TROUBLESHOOTING GUIDE 5 10 Is PANTERA data signal normal Is error signal normal Is PANTERA data signal normal Check power clock Check CD DVD DS...

Page 63: ...Pin 1 Is RC901 Pin 2 5V Power on Check and replace R926 R925 Solder defective parts again Solder defective parts Replace IC901 Solder Key part Check Power Replace IC902 Replace IC901 Replace LED901 R...

Page 64: ...Pin 63 Replace IC201 IC206 soldering or IC defect Check 2 PANTERA Part Replace X201 or IC206 30MHz clock defect CHECK POINT General 5 RF Servo Circuit A NO NO NO YES YES YES www xiaoyu163 com QQ376315...

Page 65: ...C201 Pin 80 IC2M1 Pins 28 29 IC201 Pin 80 no output IC201 is defective IC2M1 Pins 28 29 no output IC2M1 is defective IC201 Pin 88 no output IC201 is defective IC2M1 Pins 37 38 no output IC2M1 is defec...

Page 66: ...FOCUS ERROR waveform IC201 no output Pick up is defective Check IC201 and IC2M1 when PMD03 Pin 5 is abnormal Check IC2M1 Pin 21 PMD03 Pin 5 turn when the IC2M1 Pin 21 is less than 2 2V Check A Video...

Page 67: ...al Pick up is defective Replace IC201 Check IC201 Pin84 No signal at IC201 IC201 is defective Check IC201 Pin 105 Check the clock at the IC201 Pins 138 Both are normal IC201 is defective Replace IC2A1...

Page 68: ...ws 2 Connectors 1 Hook 2 Locking Tabs 1 Screw 2 Locking Tabs 2 Screws 1 Connector 2 Screws 1 Screw 2 Screws 5 Connectors 4 Screws 1 Connector 1 Locking Tab 1 Screw 2 Connectors 3 Screws 1 Screw 1 Scre...

Page 69: ...ay Disc Fig 4 2 1 Release Screw S2 Put the Base Assembly Tray face down Bottom side 2 2 Roller Base Tray 1 Unlock the two Locking Tabs L2 2 3 PCB Assembly Tray 1 Release two Screws S3 2 Unconnect the...

Page 70: ...ion 1 Unconnect the 5 Connectors C5 C6 2 Release 2 Screws S6 3 2 Base Assembly Sled Damper Put the Base Assembly Main on original position Top side 1 Release 4 Screws S7 2 Disconnect the Connector C7...

Page 71: ...r Slider 1 Release Screw S10 4 3 Gear Exchange 1 Release Screw S11 4 4 Gear Main 1 Release Screw S12 When reassembling align the A position of the Gear Main to the B position of Mode Switch as Fig B 4...

Page 72: ...ts 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 72 OTHER PARTS LIST 1...

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