Dvd Unit (X37-1070-00) - Kenwood DDX8017 Service Manual

DDX8017/8027/8027Y
DDX8037/8047/8067
Ref. No. Application / Function
IC4 OP amp
IC5 3-terminal regulator
IC6 Audio DAC
IC7 A/D converter
IC9 DSP
IC10 DIR
IC11 OP amp
IC12 Analog switch
IC18 Logic IC
IC19 3-terminal regulator
IC20,21 3-terminal regulator
IC300 DC/DC converter
Q13 Digital transistor
Q14,15 Transistor for audio muting
Q300,302 Digital transistor
Q303 FET
Q306~310 Digital transistor
Q312 FET
Q313 Transistor∗2

DVD UNIT (X37-1070-00)

Ref. No. Application / Function
IC1 RF signal processing IC
IC2 Driver
IC3 FLASH ROM
µ-com built-in optical DISC control IC
IC4
IC5 Voltage detection IC
IC8 Voltage detection IC
IC9 S1.5V power supply IC
IC10 S3.3V power supply IC
IC11 EEPROM
Q1 MOS-FET
Q2 MOS-FET
Q7 APC transistor
Q8 APC transistor
Q9 MOS-FET
Q10 MOS-FET
Q11 Resistor built-in transistor
Q12 Resistor built-in transistor
Q13 Resistor built-in transistor
Q14 Resistor built-in transistor
14
COMPONENTS DESCRIPTION
For audio signal amplification (Front)
5V is output from 8V
D/A conversion of audio signal (Front, Rear, Center, Sub-woofer)
A/D conversion of audio signal (Lch, Rch)
Processing of computing for Dolby 5.1ch, dts etc.
Conversion of S/PDIF format data to digital audio format
For audio signal amplification (Front)
Switching audio signal (Sub-woofer) and A4V
Inverter for generating clock
1.25V his output from 3.3V
3.3V is output from 5V
For control of 5V and 7.8V
Comes ON at the time of momentary power down, resetting, and in audio muting timing
Comes Mute at the time of momentary power down, resetting, and in audio muting timing
Reference for voltage input at the time of DC-DC external oscillation frequency input stoppage
For generation of 5V and 7.8V
For Power ON control
For SW14.4V generation
For SW14.4V control
RF signal processing
Driver for motorists/pickup actuators
FW maintenance for optical DISC control IC
Optical DISC control in general/ATAPI interface
For reset of optical DISC control IC
For monitoring power supply voltage
S5V → S1.5V
S5V → S3.3V
Data storage for optical DISC control IC
DVD laser diode ON/OFF control
CD laser diode ON/OFF control
CD laser diode light emission amount control
DVD laser diode light emission amount control
For CD laser diode protection
For DVD laser diode protection
LO-MUTE signal control
FG signal control
BMS signal control
DRMU signal control
Operation / Condition / Compatibility
Operation / Condition / Compatibility