Kenwood KDC-MP628 Service Manual page 5

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3 7 63 1515 0
Ref. No.
Q2 TRIANGLE RED LED SW
Q3 BLUE LED SW
Q4 GREEN LED SW
Q5 RED LED SW
Q6 SW3.3V SW
Q7,8 SW5V SW
Q9,10 FL3.3V SW
Q12 FL BLK SW
Q11,13 FL+B SW
● CD PLAYER UNIT (X32-5740-0x)
Ref. No.
IC1 A3.3V regulator
IC2 Ope amp for low-pass filter
IC3 4ch BTL driver
µ-com
IC4
TE
IC5 Bu 3.3V regulator
L 13942296513
IC6 D3.3V regulator
IC7 Audio DAC built-in servo DSP
IC8 Memory IC
IC11 Buffer IC
Q1 A3.3V discharge circuit
Q4 Electric AMP
Q5,6 SW 5V
Q7,8 SW 8V
D1 For electric AMP
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COMPONENTS DESCRIPTION
Application / Function
Application / Function
x ao u163
y
i
2 9
8
Operation / Condition
Lights up when base is "H"
Lights up when base is "H"
Lights up when base is "H"
Lights up when base is "H"
When base is "L", SW3.3V is supplied to IC1 and IC3
When Q8 base is "H", SW5V is supplied to IC2 and IC6
When Q9 base is "H", FL+3.3V (VDD1) is supplied to fruorescent indicator tube
When base is "H", fruorescent indicator tube (ED1) lights up
When Q11 base is "H", FL+B (VDD2) is supplied to fruorescent indicator tube
Operation / Condition
Power supply for audio 3.3V
Driving spindle motor and loading/ejection operation
Q Q
Power supply for backup 3.3V
3 6 7 1 3 1 5
Digital 3.3V power supply
MP3, WMA, and AAC compatible
Used only for 0-02 destination
Level shift
Adjusts current to be sent to laser
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KDC-MP628/MP7028/MP728
MP8029/W7031/W7031Y
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9
5