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KDC-5090B/BY
4
Ref. No.
Component Name
Application / Function
Operation / Condition / Compatibility
IC1
LC75808W
LCD driver with the key matrix
IC2
RS-171
Remote sensor IC
Q1
DTA114EUA or KRA302
Key-permission SW
For the key scanning start
Q3
2SD2114K
Red LED SW
When a base goes Hi, RED LEDs are turned on.
Q4
2SD2114K
Green LED SW
When a base goes Hi, GREEN LEDs are turned on.
Q5
2SC2412K or 2SD601A
VLCD AVR
Q6
DTA114EUA or KRA302
REMO SW
While a base goes Lo, PAN 5V is supplied to the Remote
sensor IC.
Q7
DTC143ZK
Dimmer SW
Usually Q7’s base goes Hi. When DIMMER mode is
selected, pulse wave shape is applied to Q7’s base.
●
ELECTRIC UNIT (X25-87X2-7X)
Ref. No.
Component Name
Application / Function
Operation / Condition / Compatibility
IC1
UPD703033GC117
System MI-COM.
or UPD703033GC145
IC2
TDA7407D
E.VOL & N.C.MPX IC
IC3
HD74HC02FP
Mute logic
2-input NOR x 4
or TC74HC02AF
IC4
TA8263BH
Power AMP. IC
IC7
TDA7479D
RDS decoder
IC8
S-80837ANNP
Reset IC
When BU 5V voltage is less than 3.7V, IC outputs Lo.
Q1
DTC143TUA or KRC410
Pre mute (Front L)
When Q1’s base goes Hi, Pre-output is muted.
Q2
DTC143TUA or KRC410
Pre mute (Front R)
When Q2’s base goes Hi, Pre-output is muted.
Q5
DTC143TUA or KRC410
Pre mute (Rear L)
When Q5’s base goes Hi, Pre-output is muted.
Q6
DTC143TUA or KRC410
Pre mute (Rear R)
When Q6’s base goes Hi, Pre-output is muted.
Q7
DTA124EUA or KRA303
Mute driver
When BU detection SW or System RESET or MI-COM.’s
Pre-mute is working, a base goes Lo, and Q7 is turned on.
Q11
2SC4081 or 2SD1819A
BU 5V AVR
While BACKUP is applied, AVR o5V.
Q12
2SB1548(P)
Q11 and Q12 are inverted Darlington connection.
Q13
2SA1576A or 2SB1218A
SW 5V
While a base goes Lo, SW 5V is supplied to the
microprocessor peripheral circuits.
Q14
2SC4081 or 2SD1819A
A8V AVR
When Q14’s base goes Hi, A8V AVR outputs 8V.
Q15
2SB1548(P)
Q16
DTC124EUA or UN5212
A8V AVR and SERVO +B AVR ON/OFF control
Q17
DTA124EUA or KRA303
SW14V SW
While Q16’s base goes Hi, Q17 is turned on, A8V AVR and
SERVO +B AVR are working.
Q18
2SD2375
SERVO +B AVR
When Q18’s base goes Hi, SERVO +B AVR outputs 8V.
Q19
DTC124EUA or UN5212
ILL +B AVR ON/OFF control
Q20
DTA124EUA or KRA303
ILL +B SW
While Q19’s base goes Hi, Q20 is turned on, and ILL +B
AVR is working.
COMPONENT DESCRIPTION
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SWITCH UNIT (X13-99XX-X4)
Содержание KDC-5090B
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