DPX-3070/3070B
3
COMPONENTS DESCRIPTION
●
MAIN UNIT
Ref. No.
Application / Function
Operation / Condition
IC1
MAIN
µ
-COM
Main microcomputer
IC2
RESET
IC3
MUTE
IC4
ROM COLLECTION
IC5
SECURITY ROM
IC12
PLL
PLL for tuner
IC101
E-VOL
Electric volume
IC103
WOW
IC104
WOW FOCUS
IC301
AUDIO SELECTOR
Audio switch for cassette
and tuner
IC351
CASSETTE MOTOR DRIVER
Driver for cassette motor
IC601
POWER IC
Output amplifier
Q1
RESET SW
Q5
FM VCC SW
Q101
E-VOL MUTE SW
Q141
WOW FOCUS SW
Q221
FM/AM VT DRIVER
Q271,272
PRE MUTE DRIVER
Mute switch for preout
Q277
PRE MUTE SW
Q281,282
PRE MUTE DRIVER
Mute switch for preout
Q287
PRE MUTE SW
Q802~805
P. CON SW (P-ANT SW)
Q806,807
P-ANT SW
External amplifier driver
7.5V power supply for
CD mechanism
Q855,856
D5V AVR
5V power supply for
CD mechanism
Q857,858
BU5V AVR
Q859
SW5V SW
Q860
SW5V DRIVER
Ref. No.
Application/Function
Operation/Condition
Q861,862
MOTOR+B SW
Power supply for
cassette motor
Q863,864
A8V AVR
8V power supply for audio
Q865
P. ON-ILULMI SW
Q866,867
LED11V AVR
11V power supply for LED
Q868,869
MAIN MOTOR+B SW
Power supply for
cassette main motor
Q870
P. ON SW
●
CONTROL UNIT
Ref. No.
Application/Function
Operation/Condition
IC901
LCD DRIVER
LCD driver
IC921
REMOTE
Receives remote signal
Q903
RED LED SW
Q904
BLUE LED SW
Q905
GREEN LED SW
Q906
SECURITY INDICATOR SW
Q921
REMOTE SW
●
EQUALIZER UNIT
Ref. No.
Application/Function
Operation/Condition
IC250
DOLBY/EQUALIZER
Cassette audio equalizer
●
CD PLAYER UNIT (X32-5490-01)
Ref. No.
Application/Function
Operation/Condition
IC1
MECHANISM
Activates when BU5 and
CONTROL IC
MSTOP (Pin No.12) goes “H”.
IC2
SW3.3V AVR
Activates when CNTL
(Pin No.1) goes “H”.
IC3
CD RF/SERVO/
Activates when SW3.3V
DSP/DAC IC
goes “H”.
Focusing coil, tracking
IC4
4ch BTL DRIVER
coil, spindle motor and
sled motor driver.
Q2
SW 5V
Switch for SW5V.
Q3
AUTOMATIC POWER
LD driver.
CONTROL
Q4
SW
For switching equalizer.
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