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DPX304/DPX308U/DPX404U
DPX-MP3120/U5120/U5120S
●
SWITCH UNIT (X16-7120-2x)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
LCD Driver
ED1 Drive.
IC2
Remote Control Receiver
Q1
LED Driver
KEY Illumination Driver (Blue)
Q2
LED Driver
KEY Illumination Driver (Green)
Q3
LED Driver
KEY Illumination Driver (Red)
Q4
LED Driver
KEY Illumination Driver (Blue)
Q5
LED Driver
KEY Illumination Driver (Green)
Q6
LED Driver
KEY Illumination Driver (Red)
Q7
LED Driver
LCD Back light Illumination Driver (Blue)
Q8
LED Driver
LCD Back light Illumination Driver (Red)
Q9
LED Driver
LCD Back light Illumination Driver (Green)
Q10
KEY Input timing switch
●
ELECTRIC UNIT (X34-700x-xx)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC70
USB5V & REMO IC Power Supply
Switching Regulator.
IC140
Power Control Switch
USB5V power control switch with over current detection and protection.
IC200
Power IC
Ampli
fi
es front L/R and rear L/R to 45W maximum.
IC300
System
μ
-com Reset Control
Output “L” (System
μ
-com Reset), when detection voltage goes below 3.6V
or less.
IC301
System
μ
-com
System control. Power management. Panel, AM/FM, External etc.
IC302
MUTE Logic
Controls logic for muting.
IC420
Source Selector & Electrical Volume
Select source & Full source volume. Speaker out “DC-Offset” detection and
protection. (This function consists of IC200 and IC420.)
IC501
Advanced tuner on main-board IC
The TEF6614TV1S4-X/TEF6614TV1S3-X is an AM/FM radio including Phase-
Locked Loop (PLL) tuning system. It includes a newly developed demodula-
tor for data reception of RDS and RBDS transmissions.
Q21~26
Audio 8V AVR
System power on time output 8V.
Q30,31
Switch 5V
Active time is Power ON.
Q32,33
Backup5V AVR
Always output 5V.
Q40,41
Servo AVR
CD Servo
Q42,44~47
Over current detection
Over current detection
Q50~53
ILL+B AVR
Active time is Power ON.
Q80
Backup detect switch
Check of Backup voltage. It is on if good.
Q81
ACC detect switch
Check of ACC voltage. It is on if good.
Q82
Surge detect switch
Check of over input voltage. Detects it in on.
Q100~103
Power control switch
Active time is Power ON.
Q104,105
Power antenna switch
Active time is AM/FM source.
Q120
Small lamp detect switch
Check of small lamp. Detects it in on.
Q400
Preout mute switch
SW/REAR Lch
Q401
Preout mute switch
SW/REAR Rch
Q402
Preout mute switch
FRONT Lch
Q403
Preout mute switch
FRONT Rch
Q404
Preout mute Driver
When this Tr does on, it is mute.
Q700,701
Panel 5V AVR
Active time is Power ON.
COMPONENTS DESCRIPTION