5
DPX701/701U/701UY
DPX-MP7090U
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q606,607
AUDIO 10.5V AVR
When Q606’s base goes Hi, AVR outputs 10.5V.
Q608~615
Pre-out mute SW
When a base gose Hi, Pre-out is set to mute.
Q800,802
REF+B AVR
When Q800’s base goes Hi, AVR outputs 13V.
Q801
SVR6.8V Ref Supply AGC Controller
When the voltage of B.U voltage falls, a return is hung and an output is reduced.
Q901
VFD & USB5V AVR SW
When base goes Hi, VFD & USB5V AVR on.
Q902
Mecha digital AVR SW
When base goes Hi, Mecha digital AVR on. (DXM-680*: 5V)
Switching Regulator frequency
Q903
control SW (IC901)
Q981~983
SW16V (Surge Protection)
When Q983’s 2 pin goes Hi, SW16V outputs (BU-0.6)V.
●
SWITCH UNIT (X16-352x-xx)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
ROM IC, Flash ROM IC
Graphics data included.
IC2
Spectrum analyzer IC
6ch band pass filter.
IC4
Panel
µ
-com
IC6
Remote control IC
Remote control receiver.
IC7
Buffer IC
It is change into 3.3V from 5V.
IC8
Buffer IC
It is change into 5V from 3.3V.
IC9
Buffer IC
For Control ED1.
IC10
2.5V regulator
The power supply For 2.5V.
IC11
3.3V regulator
The power supply For 3.3V.
Q1
Triangle green LED SW
Triangle green LED is lighting when Q1’s base level goes “H”.
Q2
Triangle red LED SW
Triangle red LED is lighting when Q2’s base level goes “H”.
Q3
Key LED SW
Key LED are lighting when Q3’s base level goes “H”.
Q4,5
Front galss SW
Front glass LED are lighting when Q5’s base level goes “H”.
Q6
SW3.3V SW
SW3.3V the power supply of IC1,3 is turned on when Q6’s base level goes “L”.
Q7,8
SW5V SW
SW5V the power supply of IC2,6 is turned on when Q8’s base level goes “H”.
Q9,10
FL3.3V SW
FL+3.3V (VDD1) is turned on when Q9’s base level goes “H”.
Q11,13
FL+B SW
FL+B (VDD2) is turned on when Q11’s base level goes “H”.
Q12
FL BLK SW
ED1 is lighted on when Q7’s base level goes “H”.
Q14
PAN RST
IC4 is reset when Q14's base level goes “H”.
●
CD PLAYER UNIT (X32-5870-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
Mechanism
µ
-com
IC2
Signal Processor
IC4
BTL Driver
Spindel motor, sled (including loading & eject) motor and pick-up actuator
IC5
SW3.3V Regulator
3.3V power supply for IC2, pick-up, IC18 digital part
IC13
Audio Active Filter
2nd LPF
IC14
A5V Regulator
3.3V power supply for DAC
COMPONENTS DESCRIPTION
2pin
L
H
1pin
L
430kHz
600kHz
H
650kHz
820kHz