Gear Position In A Dvd Mechanism; Block Diagram - Kenwood KVT-512DVD Service Manual

GEAR POSITION IN A DVD MECHANISM

In assembling the Traverse UD arm, Drive cam assembly,
Drive gear 5 and Drive gear 4C, align register marks on
these components.
DVS-8000V BLOCK DIAGRAM (X37-1100)
SPINDLE
MOTOR
OPTICAL PICKUP
HALL
IC
LO/EJ
DC MOTOR
M
IC10
FO6,RO6
D3.3V
3
H1H,H1L,HB
3
A1,A2,A3
MOTOR &
ACTUATOR
DRIVER
P5V

BLOCK DIAGRAM

DISC
PDIC VCC
DVD LD/CD LD
HFM
VREFH
IMON/VR DVD/VR CD
PDIC I/V OUT
THERMISTER
FO+/-,TR+/-
CN1
30PIN
2 PHASE
STEPPING
4
CN3
28PIN
4
P5V
VR
FO2,RO2
FO3,RO3
VHALF
VREF,EC
STBY,SPIN,IN2-6
BMS,MUTE
FG
A5V
D5V
A3.3V
D3.3V
1.5V
Traverse UD arm
Drive cam assembly
Inscriptions
(register marks)
on gears
Align 6 marks as
shown in the
figure
A3.3V
HFM3.3V
A5V
IC12
IOP
Q7,8
DET
IC4
APC
HFM
Tr
IOP(AD)
A5V
A3.3V
A5V
IC1
2
ARF,NARF
FRONT-END
3
PROCESSOR FBAL,JLINE,
TSTSG
HFM3.3V
7
FE,AS,RFENV,RFDIFO
OFTR,BDO,VREF2
VREFH
VHALF(1.65V)
LPC1,2
TRCRS
9
A,B,C,D,E,F,
VHALF
RF,FE1,FE2 TE
3
SEN,SCK,STDI SEN,SCK,STDI
2
DVDON/
CDON
Q1,2
TEMP
DET(AD)
9
D5V
IC7
3.3V REG
IC8
ON/OFF
VOLTAGE DET
IC9
1.5V REG
KVT-50DVDRY/512/522DVD
/522DVDY/532DVD/532DVDM
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
RESET IC
16.897849MHz
D5V A3.3V D3.3V 1.5V
OPTICAL DISC
CONTROLLER
ATAPI IF
DISC DET
2 21 8
D3.3V D3.3V
IC11 IC3
EEPROM FLASH ROM
4
CN2
50PIN
D5V
to
MAIN
UNIT
P5V
SW LOST
SW LOEND
5