Kenwood DDX5024 Service Manual page 2

DDX5024/5034/5034BT/5034M/5054/514/54R
DNX5140/5240/5240BT/6000EX/6140
In assembling the Traverse UD arm, Drive cam assembly,
Drive gear 5 and Drive gear 4C, align register marks on
these components.
DVS-8220V/W BLOCK DIAGRAM (X37-123/125)
SPINDLE
MOTOR
HALL
IC
IC10
D3.3V
3
H1H,H1L,HB
3
A1,A2,A3
P5V
2
GEAR POSITION IN A DVD MECHANISM
BLOCK DIAGRAM
DISC
PDIC VCC
DVD LD/CD LD
HFM
VREFH
IMON/VR DVD/VR CD
OPTICAL PICKUP
PDIC I/V OUT
THERMISTER
FO+/-,TR+/-
CN1
30PIN
2 PHASE
LO/EJ
STEPPING
DC MOTOR
4
M
CN3
28PIN
4
P5V
FO6,RO6
FO2,RO2
FO3,RO3
VHALF
VREF,EC
MOTOR &
ACTUATOR
DRIVER
STBY,SPIN,IN2-6
BMS,MUTE
FG
Drive cam assembly
Inscriptions
(register marks)
on gears
Align 6 marks
as shown in the
figure
A5V
Q12,13
APC
Tr
A5V
A3.3V
A5V
IC1
2
FRONT-END
3
PROCESSOR
HFM3.3V
7
VREFH
LPC1,2
9
A,B,C,D,E,F,
VHALF
RF,FE1,FE2
3
SEN,SCK,STDI
VR
2
Q16
9
A5V
D5V
IC14
A3.3V 3.3V REG
D3.3V
IC13
1.5V 1.5V REG
Traverse UD arm
Drive gear 5 Drive gear 4C
Do not forcibly press gears to engage their teeth
but freely let the gears fall under their own weight
and engage their teeth.
D3.3V
IC5
RESET IC
16.897849MHz
D5V A3.3V D3.3V 1.5V
IC4
OPTICAL DISC
CONTROLLER
ARF,NARF
FBAL,JLINE,
TSTSG
FE,AS,RFENV,RFDIFO
OFTR,BDO,VREF2
VHALF(1.65V)
TRCRS
TE
SEN,SCK,STDI
DVDON/
CDON
TEMP
DET(AD)
2 21 8
D5V
D3.3V D3.3V
IC11 IC3
EEPROM FLASH ROM
4
CN2
50PIN
ATAPI IF
D5V
to
MAIN
UNIT
P5V
DISC DET
SW LOST
SW LOEND