Components Description - Kenwood KSC-MPV619 Service Manual

QQ
3 7 63 1515 0
SWITCH UNIT (X16-1620-10/X16-1652-70)
Ref.No. Component Name
IC1 LC75808W
IC2 RS-171
IC3 M62333FP
Q1 DTA114EUA or KRA302 Key permission SW
Q3 2SD2114K
Q4 2SD2114K
Q5 2SC4081
Q6 DTA114EUA or KRA302 5V SW
Q50 2SC4081
Q51 2SC4081
Q52 2SC4081
Q53 2SC4081
Q54 2SC4081
Q55 2SC4081
Q56 2SC4081
Q57 2SC4081
Q58 2SC4081
Q59 2SC4081
Q60 2SC4081
TE
Q61 2SC4081
L 13942296513
Q62 2SC4081
Q63 2SC4081
Q64 2SC4081
ELECTRIC UNIT (X25-9190-XX/X25-9202-70)
Ref.No. Component Name
UPD703030GFA03
IC1 or UPD703033GFA05
or UPD703033GFA13
IC2 TDA7407D
HD74HC02FP
IC3
or TC74HC02AF
IC4 TA8273H
IC6 NJM2123V-TE2
IC7 SAA6581T
IC8 S-80837ANNP
IC9 TC4066BF(N)
IC10 TC4066BF(N)
IC11 SI-8050JD
www
Q1 DTC143TUA
Q2 DTC143TUA
Q3 DTC143TUA
.
Q4 DTC143TUA
Q5 2SD2114K
Q6 2SD2114K
KDC-MPV619/MPV7019/MPV7020/MV6521

COMPONENTS DESCRIPTION

Application/Function
LCD driver with key matrix
Remote control sensor IC
D/A converter
Key illumination red SW
Key illumination green SW
VLCD AVR
V-I converter
V-I converter
V-I converter
V-I converter
V-I converter
V-I converter
V-I converter
V-I converter
V-I converter
V-I converter
V-I converter
V-I converter
Buffer
Buffer
Buffer
Application/Function
System MI-COM.
E.VOL & N.C.MPX IC
Mute logic
Power IC
Switched Op. Amp.
RDS decoder
Reset IC
AUX input SW
Changer input SW
CD+5V AVR
Audio mute SW
Audio mute SW
x ao u163
y
Audio mute SW
i
Audio mute SW
Audio mute SW
Audio mute SW
2 9
8
Operation/Condition/Compatibility
The brightness control of red, green and blue colour
For the key scanning start and the key detection SW
When a base goes Hi, RED LEDs are turned on.
When a base goes Hi, GREEN LEDs are turned on.
For LCD driver IC
While a base goes Lo, PAN 5V is supplied to the remote
control sensor IC and D/A converter IC.
Current driver for blue LED
Current driver for green LED
Current driver for red LED
Current driver for blue LED
Current driver for green LED
Current driver for red LED
Current driver for blue LED
Current driver for green LED
Current driver for red LED
Current driver for blue LED
Current driver for green LED
Q Q
Current driver for red LED
3 6 7 1 3 1 5
Control voltage buffer for red LEDs brightness
Control voltage buffer for green LEDs brightness
Control voltage buffer for blue LEDs brightness
Operation/Condition/Compatibility
2-input NOR x 4
When BU 5V voltage is less than 3.7V, IC outputs Lo.
When 5 pin, 12 pin and 13 pin terminals go Hi, AUX's inputs
are selected.
When 5 pin, 12 pin and 13 pin terminals go Hi, Changer's
inputs are selected.
DC/DC converter
When a base goes Hi, Front R Ch. pre-out is muted.
When a base goes Hi, Front L Ch. pre-out is muted.
co
When a base goes Hi, Rear R Ch. pre-out is muted.
.
When a base goes Hi, Rear L Ch. pre-out is muted.
When a base goes Hi, NON-F R Ch. pre-out is muted.
When a base goes Hi, NON-F L Ch. pre-out is muted.
9 4 2 8
0 5 8 2 9 9 4 2 8
m
9 9
9 9
3