KDC-5090B/BY
5
Ref. No.
Component Name
Application / Function
Operation / Condition / Compatibility
Q21
2SB1184
ILL +B AVR
While Q22's base goes Hi, AVR outputs +10.5V.
Q22
2SC4081 or 2SD1819A
Works during POWER ON mode with a panel attached to the set.
Q26
DTC144EUA or UN5213
Small lamp detection SW
When vehicle small lamps turn on, Q26 is turned on .
Q27
DTC114YUA or UN5214
P-CON SW
When Q27's base goes Hi, Q32 is turned on .
Q32
2SB1277(Q,R)
Works during POWER ON mode.
Q29
DTA124EUA or KRA303
P-CON. protection inhibit SW
Prevents Q30 tuning ON during start-up after power ON.
Q30
2SA1576A or 2SB1218A
P-CON. protection SW
Protect Q32 by turning ON when P-CON output is grounded.
While BACKUP is applied, a base goes Hi, and Q33 is
Q33
2SC4081 or 2SD1819A
BU detection SW
turned on. When momentary power down has detected,
a base goes Lo, and Q33 is turned off.
Q34
2SC4081 or 2SD1819A
ACC detection SW
While ACC is applied, a base goes Hi, and Q34 is turned on.
Q42
DTC124EUA or UN5212
E. VOL mute SW
When BU detection SW or MI-COM.'s mute is working,
a base goes Hi, and Q42 is turned on.
Q43
2SC4081 or 2SD1819A
Noise buffer
Q45
DTC124EUA or UN5212
FM +B SW
When Q45's base goes Hi, Q47 is turned on.
Q47
2SB1277(Q,R)
Works during FM reception mode.
Q46
DTC124EUA or UN5212
AM +B SW
When Q46's base goes Hi, Q48 is turned on.
Q48
2SB1277(Q,R)
Works during AM reception mode.
Q51
DTC144EUA or UN5213
IFC buffer
Waveform shaping
Q52
2SC4081 or 2SD1819A
Composite signal output buffer
Q55
2SA1576A or 2SB1218A
PAN 5V SW
While a panel is attached to the set, Q56's base goes Hi,
Q56
DTC124EUA or UN5212
and Q55 is turned on.
q CD PLAYER UNIT (X32-5010-00)
Ref. No.
Component Name
Application / Function
Operation / Condition / Compatibility
Generation of RF signal based on the signals from the APC
circuit and pickup, and generation of servo error (focusing
IC1
AN22000AA
RF amplifier
error and tracking error) signals.
Detection of dropout, anti-shock, track crossing and off-track
conditions, Gain control function building in.
IC2
MN662774KG1
CD signal processor bult-in MI-COM.
IC4
BA5917AFP
4CH BTL driver
Focusing coil, tracking coil, spindle motor and sled motor driver
IC6
NJM4565MD
OP Amp.
Low pass filter
Q1
MCH6101
APC
LD power control
Q2
DTC124EUA
P ON SW
When CD source is selected, Q2's base goes Hi, Q3 and
Q4 are turned on.
Q3
DTA143XUA
A.8V SW
A8V ON/OFF control. When a base goes Lo, Q3 is turnde on.
Q4
2SA1362 (Y)
D.5V SW
D5V ON/OFF control. When a base goes Lo, Q4 is turnde on.
Q5
DTC124EUA
MOTOR SW
When CD loading or eject operation is activating, Q5's base
goes Hi, Q4 is turned on.
COMPONENT DESCRIPTION
