Switch Unit (X16-352X-Xx); Cd Player Unit (X32-5870-00) - Kenwood DPX701 Service Manual

Ref. No. Application / Function
Q606,607 AUDIO 10.5V AVR
Q608~615 Pre-out mute SW
Q800,802 REF+B AVR
Q801 SVR6.8V Ref Supply AGC Controller
Q901 VFD & USB5V AVR SW
Q902 Mecha digital AVR SW
Switching Regulator frequency
Q903
control SW (IC901)
Q981~983 SW16V (Surge Protection)

SWITCH UNIT (X16-352x-xx)

Ref. No. Application / Function
IC1 ROM IC, Flash ROM IC
IC2 Spectrum analyzer IC
Panel µ-com
IC4
IC6 Remote control IC
IC7 Buffer IC
IC8 Buffer IC
IC9 Buffer IC
IC10 2.5V regulator
IC11 3.3V regulator
Q1 Triangle green LED SW
Q2 Triangle red LED SW
Q3 Key LED SW
Q4,5 Front galss SW
Q6 SW3.3V SW
Q7,8 SW5V SW
Q9,10 FL3.3V SW
Q11,13 FL+B SW
Q12 FL BLK SW
Q14 PAN RST

CD PLAYER UNIT (X32-5870-00)

Ref. No. Application / Function
Mechanism µ-com
IC1
IC2 Signal Processor
IC4 BTL Driver
IC5 SW3.3V Regulator
IC13 Audio Active Filter
IC14 A5V Regulator
COMPONENTS DESCRIPTION
When Q606's base goes Hi, AVR outputs 10.5V.
When a base gose Hi, Pre-out is set to mute.
When Q800's base goes Hi, AVR outputs 13V.
When the voltage of B.U voltage falls, a return is hung and an output is reduced.
When base goes Hi, VFD & USB5V AVR on.
When base goes Hi, Mecha digital AVR on. (DXM-680*: 5V)
1pin
When Q983's 2 pin goes Hi, SW16V outputs (BU-0.6)V.
Graphics data included.
6ch band pass filter.
Remote control receiver.
It is change into 3.3V from 5V.
It is change into 5V from 3.3V.
For Control ED1.
The power supply For 2.5V.
The power supply For 3.3V.
Triangle green LED is lighting when Q1's base level goes "H".
Triangle red LED is lighting when Q2's base level goes "H".
Key LED are lighting when Q3's base level goes "H".
Front glass LED are lighting when Q5's base level goes "H".
SW3.3V the power supply of IC1,3 is turned on when Q6's base level goes "L".
SW5V the power supply of IC2,6 is turned on when Q8's base level goes "H".
FL+3.3V (VDD1) is turned on when Q9's base level goes "H".
FL+B (VDD2) is turned on when Q11's base level goes "H".
ED1 is lighted on when Q7's base level goes "H".
IC4 is reset when Q14's base level goes "H".
Spindel motor, sled (including loading & eject) motor and pick-up actuator
3.3V power supply for IC2, pick-up, IC18 digital part
2nd LPF
3.3V power supply for DAC
DPX701/701U/701UY
DPX-MP7090U
Operation / Condition / Compatibility
2pin
L H
L 430kHz 600kHz
H 650kHz 820kHz
Operation / Condition / Compatibility
Operation / Condition / Compatibility
5