Kenwood FZDA07ELEF2 Service Manual page 13

● DVD UNIT (X37-1120-02)
Ref. No. Application / Function
IC1 One chip LSI for DVD player
IC5 FLASH ROM
IC9 EEP ROM
IC10 Driver IC
IC12 1ch video AMP
IC21 2-output switching REG
IC39 OP-AMP for Iop measurement
IC42 Logic IC for port extension
IC49 Low voltage logic
IC54 SDRAM
IC55,56 Logic IC for port extension
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
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
5V
For Iop measurement
For port extension
For S/PDIF signal amplitude conversion (3.3V
To retain data for one chip LSI (Nonvolatile memory)
For port extension
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)
FZDA07ELEF2/EREF2/MRHF2
Operation / Condition / Compatibility
→ 3.3V/1.2V
→ 1.2V)
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