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Kenwood DXM-6500W, Service Manual

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Kenwood DXM-6500W Service Manual Download Page 8

X92-4470-0x

8

OPERATION DESCRIPTION

3) Rotation of rollers during disc loading

As shown in the following figure, the

motor rotation force is transmitted

through sun gear 

➔

 helical gear 2 

➔ 

load

gear 2 to the gear that is coupled directly

with the roller shaft to rotate the roller

and pull in the disc.

(2) How to stop the roller rotation

The boss of the roller arm is engaged with

a groove on slider (R).

When slider (R) moves, the boss of the roller arm moves

along the groove of slider (R), thereby separating the

helical gear 2 coupled with it from load gear 2.

This stops transmission of the force to the rollers

so the rollers stop.

Boss

Groove

Groove

Groove

(3) Operation of the clamper (Disc chucking)

1) Engaged condition

The plate spring attached to the clamper chassis is

originally engaged with a groove on slider (R).

Force transmitted from the
motor

Sun gear

Roller

Rotation direction
for pulling the
disc in

Disc

Load gear 2

Helical gear 2

Roller arm

Slider (R) assy

Roller arm

Helical gear 2

Gear shaft

Roller arm

Slider (R)

Clamper assy

Plate spring

Stopped

Load gear 2

Helical gear 2

Slider (R)

Summary of Contents for DXM-6500W

Page 1: ... MANUAL outer chassis dumper X4 floating spring X4 traverse chassis assy Mecha PCB roller spring roller lever assy damper bracket disc guide assy DESCRIPTION MECHANISM X92 4470 00 DXM 6500W X92 4470 01 DXM 6501W X92 4470 02 DXM 6502W X92 4470 03 DXM 6503W CONSTRUCTION OF MAJOR PARTS ...

Page 2: ...or the pickup IC5 IC8 10 and IC11 IC3 D2 5V AVR Power supply for IC8 IC4 4CH BTL driver Focusing coil tracking coil spindle motor and sled motor driver disc loading and eject operation IC5 Mecha control MI COM IC6 A3 3V AVR Power supply for DAC LPF operational reference voltage IC7 Level shifting 3 3V 5V Buffer and logic level conversion from IC10 to IC5 IC8 WMA decoder IC9 Clock buffer for WMA IC...

Page 3: ...Low fixation Low 26 EFLG I WMA error detection H error L not error Out Low 27 WAIT I Weight control signal detection Out Low 28 FOK I Focus condition detection H Focus OK L Focus NG Out Low 29 30 NC O Not use Low fixation Low 31 RESET I Reset detection H normal L reset Hi Z 32 XT1 I Not use Hi Z 33 XT2 Not use 34 REGC 35 X2 36 X1 I Hi Z 37 Vss GND potential 38 VDD 5V potential 39 NC O NC Output st...

Page 4: ...correspond to WMA Hi Z L DXM 6400 Don t correspond to WMA 81 NC I Not use Hi Z 82 ASEL I Audio output polarity switching H turning over output Hi Z L non turning over output 83 DASC I Shock proof specification switching H shock proof ON L shock proof OFF Hi Z 84 TEST2 I Test terminal 2 Hi Z 85 TEST3 I Test terminal 3 Hi Z 86 NC O Not use Low fixation Low 87 MSTOP I Standby return interrupt H stop ...

Page 5: ...ration of Slider R 1 Activating the trigger arm 1 When the disc is pulled in by the rollers the disc edge pushes the trigger arm and rotates it 2 When the disc is an 8cm disc it is pulled upwards by the tapering on the disc guide The trigger arm is rotated when the disc pushes the claw section A located before the trig ger arm When the 8cm disc reaches the loading end position the roller areas sup...

Page 6: ...r R 1 Activating the trigger slider When the trigger arm is rotated by the pres sure of the disc the trigger arm pushes the trigger slider Locked Locked Center of rotation 2 Rotating engaging the planetary gear When the trigger slider is moved it pushes down the wall section A of the carrier gear Initial rotation of the carrier gear This causes the planetary gear which is attached on a pin of the ...

Page 7: ... To play back a CD it is required to perform a flow of opera tions as shown below 2 Coupling conditions The parts used for performing the above functions are coupled with slider R as shown below Pulling the disc in and stopping the roller rotations after it Moving the clamper downwards so that it can clamp the disc during playback Disc chucking Moving the rollers that are in contact with the disc ...

Page 8: ...rm moves along the groove of slider R thereby separating the helical gear 2 coupled with it from load gear 2 This stops transmission of the force to the rollers so the rollers stop Boss Groove Groove Groove 3 Operation of the clamper Disc chucking 1 Engaged condition The plate spring attached to the clamper chassis is originally engaged with a groove on slider R Force transmitted from the motor Su...

Page 9: ...er R moves the roller lever shaft engaged with a groove on slider R moves along the groove and lowers the rollers The following figure shows the flow of operation Center of rotation Center of rotation Shaft Final position Clamper Slider R Plate spring Clamper chassis assy Engaged condition Disc chucking completion position Initial position Roller lever Slider Engaged condition In contrast to the d...

Page 10: ...ing protects the disc playback operations and is referred to as the floating position 6 Function of slider L Slider L ensures the mechanism lock position because the shafts of the outer chassis are inserted into its grooves in the same way as they are inserted into the grooves on slider R As slider R moves the force moving the roller lever is transmitted to slider L which also starts the sliding m...

Page 11: ...Construction The optical pickup unit is attached on the rack gear The following figure shows the position ing of the gears 2 Activating the pickup After the above series of operations have completed and the disc is put in the playback condition the car rier gear rotates further and is meshed with pick gear 1 The force is then transmitted through pick gear 2 to the rack gear causing the optical pic...

Page 12: ...C6 C17 R63 C10 R18 CP31 R17 CP28 R84 R100 C25 C71 CP27 CP15 L1 R98 R97 CP32 R101 C72 C24 C23 C22 E B B E 1 20 40 21 1 3 5 4 1 3 4 5 1 15 30 16 1 25 75 51 76 100 50 26 SD MD FD TD IC11 Q4 IC4 Q3 IC9 IC6 S2 S1 S3 S4 IC8 X32 5220 0x J74 1247 22 PC BOARD COMPONENT SIDEVIEW Refer to the schematic diagram for the values of resistors and capacitors IC Q Address 4 6C 6 3B 8 4B 9 3B IC Q Address 11 2B 3 5D...

Page 13: ...9 1 16 1 36 73 108 144 109 37 72 1 4 5 8 1 7 8 14 1 25 51 75 76 100 26 50 1 7 14 8 1 5 1 5 1 24 MOTOR LO EJ PD MD FD SD BU5 D MUTE AA LD D P S7 5 D4 7 DGND LE LM MD VR RST RZM 63 RFOK 24 57M 58 62 59 EFM J SPD SPD T F IOP TE E F ARF VREF RF AGND ASY RFI C IOP 61 60 A F FE TE2 E A8V VC SD FD ADGND TD SLD SLD Lch Rch 12EJE LOS CLK DOUT DATA SGND SO0 F T TD uGND VPP 16 00M EFLG LZM TBC ATEST E B IC3 ...

Page 14: ...85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 SCK0 SDA0 D MUTE ZMUTE L ZMUTE R FOGUP INTSV MSTOP TEST3 TEST2 DASC ASEL WMA HOT AVREF AVSS AVDD DBBRRDY0 DBBWRDY0 REQ RESET CS HCSB AD15 AD14 AD13 AD12 A...

Page 15: ...VDD3 HAST HCSB HR WB HDSTB GND2 DIR EXTDIR DBBWRDY0 DBBWRDY1 DBBRRDY0 VDD2 L3 100K CP23 100K CP17 CP18 100K CP20 100K CP24 100 100K CP19 3 1 5 4 2 GND 1 2 3 4 5 6 7 VDD 14 13 12 11 10 9 8 A4 Y3 3 Y1 A1 2 1 A3 Y2 5 6 A2 4 12 A6 VCC 13 14 Y5 A5 10 9 Y6 11 7 GND 8 Y4 66 64 65 100K CP15 91 90 89 26 28 27 53 20 27 26 25 24 23 22 21 98 97 96 95 94 A5 A4 GND A8 A7 A6 88 I O15 39 38 37 36 35 34 33 32 31 3...

Page 16: ... D B C A A GND RF RF2 EQ1 EQ2 RF0 AGCI AGCO RFI A GND C3T ASY EFM ATEST A VDD MD SD TD FD TEST3 TEST2 TEST1 TEST0 VDD RA9 RA8 RA7 RA6 RA5 RA4 RA3 RA2 RA1 RA0 GND RDB15 RDB14 RDB13 RDB12 RDB11 RDB10 RDB9 RDB8 RDB7 RDB6 RDB5 RDB4 RDB3 RDB2 RDB1 RDB0 X VDD XTAL1 XTAL1 X GND X GND XTAL2 XTAL2 X VDD R GND DIN DOUT SCKIN SCKO LRCKIN LRCK TESTX RFOK C16M TESTEN TEST4 VDD RFCK HOLD WFCK MIRR PLCK LOCK C1D...

Page 17: ...55 36 33 33 40 15 39 42 11 13 12 10 22 32 35 43 2 37 Bx2 Ax2 Dx2 DPU1 H F F G DFPC1 E A B C D E F G H N09 4460 05 N09 4472 05 N09 6004 05 N09 6006 05 N09 6007 05 N09 6051 05 N19 2163 04 N39 2020 46 φ2x8 M1 7x8 5 M1 7x2 5 φ2x3 5 M2x2 φ2x6 BLK 1 6 WASHER M2x2 X32 522 8 809 5 EXPLODED VIEW Parts with the exploded numbers larger than 700 are not supplied ...

Page 18: ...3 CC73GCH1H681J CHIP C 680PF J C94 95 CC73GCH1H680J CHIP C 68PF J C96 97 CK73GB1C104K CHIP C 0 10UF K CN1 E40 9527 05 FLAT CABLE CONNECTOR CN1 E41 0213 05 FLAT CABLE CONNECTOR CN2 E40 9536 05 FLAT CABLE CONNECTOR CN2 E41 0193 05 FLAT CABLE CONNECTOR L1 L92 0329 05 CHIP FERRITE L3 L92 0329 05 CHIP FERRITE L5 L92 0329 05 CHIP FERRITE L7 L92 0329 05 CHIP FERRITE X1 L78 0862 05 RESONATOR X2 L78 0860 0...

Page 19: ...LER ASSY 10 3A D10 4581 13 ARM DISC ARM L 11 2A D10 4582 13 ARM DISC ARM R 12 3A D10 4583 03 ARM JOINT ARM L 13 3A D10 4584 03 ARM JOINT ARM R 14 3B D10 4585 03 ARM Ref No A d d N e w Parts No Description Desti nation Ref No A d d N e w Parts No Description Desti nation CD PLAYER UNIT X32 5220 0x 15 2A D10 4586 03 SLIDER L 16 3B D10 4587 12 SLIDER R 17 3B D10 4588 03 SLIDER TRIG SLIDER 18 3B D10 4...

Page 20: ... KENWOOD ELECTRONICS FRANCE S A 13 Boulevard Ney 75018 Paris France KENWOOD ELECTRONICS BELGIUM N V Leuvensesteenweg 248 J 1800 Vilvoorde Belgium KENWOOD ELECTRONICS ITALIA S p A Via G Sirtori 7 9 20129 Milano Italy KENWOOD IBÉRICA S A Bolivia 239 08020 Barcelona Spain KENWOOD ELECTRONICS AUSTRALIA PTY LTD A C N 001 499 074 16 Giffnock Avenue Centrecourt Estate North Ryde N S W 2113 Australia KENW...

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