Kenwood DDX7019 Service Manual page 9

Ref. No. Application / Function
Q302 General Purpose Transistor
Q303 General Purpose Transistor
Q304 General Purpose Transistor
● DVD UNIT (X37-1120-03)
Ref. No. Application / Function
IC1 One chip LSI for DVD player
IC5 FLASH ROM
IC9 EEP ROM
IC10 Driver IC
IC12 1ch video AMP
IC15 Audio DAC
IC21 2-output switching REG
IC39 OP-AMP for Iop measurement
IC42 Logic IC for port extension
IC49 Low voltage logic
IC50 OP-AMP for audio LPF
IC51 OP-AMP for audio LPF
IC54 SDRAM
IC55,56 Logic IC for port extension
IC57 3ch video amplifi er
IC60 Power supply for 5.0V
Q1 Transistor with internal resistor
Q2 Transistor with internal resistor
Q3 Transistor with internal resistor
Q4 Transistor with internal resistor
Q10 Front end transistor for APC
Q11 Front end transistor for APC
Q12 Rear end transistor for APC
Q13 Rear end transistor for APC
Q14 MOS-FET
Q15 MOS-FET
Q20 MOS-FET for level shifter
Q21 MOS-FET for level shifter
Q24 MOS-FET
Q25 Transistor with internal resistor
Q27 Transistor with internal resistor
Q28 Transistor for APC
Q29 Transistor for APC
COMPONENTS DESCRIPTION
OSD ROUT Current Amplifi er
OSD GOUT Current Amplifi er
OSD BOUT Current Amplifi er
RF signal processing / Servo processing / Decoding processing / AV decoding processing
To retain F/W for one chip LSI (Nonvolatile memory)
To retain data for one chip LSI (Nonvolatile memory)
Fo coil / Tr coil / SP motor / SLD motor / LO-EJ motor drive
+6dB amplifi er with internal composite video output fi lter
DA converter for 2ch analogue audio output
5V 3.3V/1.2V
→
For Iop measurement
For port extension
For S/PDIF signal amplitude conversion (3.3V
LPF for 2ch analogue audio output (Rch)
LPF for 3ch analogue audio output (Lch)
To retain data for one chip LSI (Nonvolatile memory)
For port extension
With built-in fi lter +6dB amplifi er for component/RGB video output
8V 5V (Exclusively for audio DAC)
→
LO_MUTE control
For FG signal
For BMS
DRMUTE control
Control of CD laser diode emission
Control of DVD laser diode emission
Control of CD laser diode emission
Control of DVD laser diode emission
ON/OFF control of CD laser diode
ON/OFF control of DVD laser diode
Level shifter for I2C clock
Level shifter for I2C data
For Iop measurement
IFSEL control
HFM ON/OFF control
For CD laser diode protection (Current limiter)
For DVD laser diode protection (Current limiter)
DDX7019/7029/7029Y/7039
DNX7100/7200
Operation / Condition / Compatibility
Operation / Condition / Compatibility
1.2V)
→
9