KDC-116S/1018
3
●
ELECTRIC UNIT(X25-8700-XX)
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC1
UPD780058GC233
System
µ
-COM.
IC2
TDA7407D
E-VOL. & N.C. MPX
IC4
TDA7386
Power IC
IC7
BA4911-V4
Power supply IC
IC8
HD74HC27FP
Mute gate IC
3 input NOR gate x3
IC11
S-80830ANNP
RESET IC
Detection voltage 3.0V
IC12
BR24C01AF or BR24C01AF-W
E2PROM
M24C01-WMN6T or S-24C01B
Q10
2SC4081 or 2SD1819A
B.U. detection
Detect BU voltage
Q20
2SC4081 or 2SD1819A
ACC detection
Detect ACC voltage
Q40
DTA124EUA or UN5112
PREOUT mute driver
Mutes when base is "Lo" (controls Q221-224)
Q50
2SA1036K
SW 5V
ON when the base is "Lo".
Q51
UMC2N
SW 14V
ON when the base is "Hi" (controls Q55)
Q53
UMC2N
Switch for power supply IC
ON when the base is "Hi" (controls SW1 pin of power
supply IC)
Q55
2SD2375 or 2SD2396
AVR for SERBO +B
Output issued when SW14V is on (base is "Hi")
Q70
2SC4081 or 2SD1819A
SURGE detection
Detect SURGE voltage
Q223,224 DTC143TUA or UN5216
PREOUT MUTE
Mute applied to PREOUT (output) when base is "Lo"
Q251
DTC114YUA or UN5214
Power IC SVR SW
Turns ON when base is "Hi" and capacitor on SVR
pin discharges
COMPONENT DESCRIPTION
●
SWITCH UNIT(X13-9880-14)
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC1
LC75853NE
LCD driver
Ready on key-matrix
Q1
DTA114EK or KRA102S or
key-matrix permission SW
Ready on key-matrix, ON when the base goes "Lo"
UN2111
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