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KDC-9023R
/PSW9524/X969
QQ
3 7 63 1515 0
Ref. No.
Application/Function
Q20~22
Pre-Amp +9V AVR
Q23, 24
P-ANT SW
Q25
Ex amp control buffer
Q26
Small lamp det SW
Q27
BU det
Q29
ACC det
Q30, 31
Mute driver
Q201
Noise buffer
Q202
E-vol mute SW
Q203~208
Pre-out mute SW
Q210
AGC for SA
Q303, 304
AM+B SW
Q305
Composite signal buffer for RDS
Q501
E2P 5V SW
Q502, 503
PANEL 5V SW
Q603
SW for IC20
TE
L 13942296513
CD PLAYER UNIT (X32-5440-00)
Ref. No.
Application/Function
IC1
Audio 3.3V regulator
IC2
Audio LPF
IC4
BTL driver
IC5
2.5V regulator
IC6
3.3V regulator
Mechanism control µ-com
IC7
IC8
Level shift (3.3V→5V)
IC9
WMA decoder
IC10
WMA clock buffer
CD signal processor LSI
IC11
+ RF amplifier + MP3 decoder
IC12
WMA chip schmitt trigger
IC13
Data buffer DRAM
Q1
A.8V SW
Q2
3.3V regulator SW
Q3
A.8V SW
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Q4
APC (Auto Power Control)
Q5
D.5V SW
.
D1
Pick-up laser diode protection
D2
Dropped out diode
6
COMPONENTS DESCRIPTION
Q20 and 22 works as a differential amplifier, Q21 works as a driver and +9.4V is supplied
to OP amp for Pre-out.
When Q23'base goes Hi, P-ANT SW outputs 14V.
When Q26'base goes Hi, Q26 is turned on.
When Q27'base gose Hi, Q27 is turned on.
When Q29'base gose Hi, Q29 is turned on.
When a base gose Lo, mute driver is turned on.
When a base gose Hi, mute SW is turned on.
When a base gose Hi, Pre-out is muted.
When Q303'base gose Hi, AM+B is out.
When Q501'base gose Lo, E2P 5V is out.
When Q503'base gose Hi, PANEL 5V is out.
When Q603'base gose Hi, Q603 is turned on.
When Q3 is on, Q1 is turned on.
When PON is on, Q2 is turned on.
When PON is on, Q3 is turned on.
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ao
u163
y
When PON is Lo, Q5 is turned on.
i
2 9
8
Operation/Condition/Compatibility
Q Q
3
6 7
1 3
1 5
Operation/Condition/Compatibility
co
.
9 4
2 8
0 5
8
2 9
9 4
2 8
m
9 9
9 9
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