Kenwood KRC-478R, Руководство по обслуживанию

Страница: 2 / 23

KRC-478R/R
V/R
Y/R
YV
2
BLOCK DIAGRAM
IC8
RDS
DECODER
IC1
KEY
PANEL 5V
MUTE
B.U DET.
B.U
ACC
P-CONT.
MUTE
PRE OUT
POWER IC
MOTOR
DRIVER
IC6
EQ. AMP
CH. ISO AMP.
N.C/MPX
E-VOL.
CD/MD
CHANGER
FRONT Lch
FRONT Rch
REAR Lch
REAR Rch
J2
LCD DRIVER
LCD
ME1
MAIN SUB
IC5
1 Lch
2 Rch
PRE OUT
IC2
IC4
IC10
SP OUT
REAR SUB
J4
DSI
REMOTE
RESET SW PANEL SW (GND)
GRN/RED
u-COM
RESET
IC9
ACC DET.
P-CONT.
TEL MUTE
J2
J5
DRIVER
Lch
Rch
PRE OUT
FRONT
CN3
IC1
(40W)
FRONT-END UNIT
J1
FM+B
Q61,63
AM+B
Q62,64
5V
R216
AM BPF
FM BPF
R205,C207,211
R206,C206,212
MP SW
IC2
Q65
Q20
u-COM
RESET
D18,19
Q21
Q2,3
D1-17
Q57-60
Q18
Q19
Q14-17
Q3
SW5V
Q4,5
SW14W
Q6,7
8V AVR
Q10-13
ILLUMI.
AVR
AVR
B.U.5V
Q1,2
u-COM
ED1
DRIVER
FM ANT
AM ANT
OSC GND
FM+B
AM+B
OSC GND
OSC GND
OSC GND
VT
PLL +B
IFC OUT
SDA
SCL
DIG GND
IF1+B
IF1 GND
S-METER
IF2 GND
SD
FM+B
SUB+
SUB-
PON
ACC DET
B.U DET
SCL
MUTE
SDA
P CON
P
ANEL
RESET L-RESET L-CLK L-D
A
T
A
S
L-D
A
T
A
L
DSI FWD/REV T
-MODE
M
OTO
R
CH CON
D
ATA
H
D
ATA
C
REQ H REQ C
CH CLK
Rch
COM
Lch
TAPE
MP IN
AM
MPX
OUT RR
OUT LR
OUT RF
Rch
LEVEL
SCL
SDA
OUT LF
Rch
STBY
MUTE
Rch
Lch
PACK
T-END
SYBY
MODE
FWD
REV
B.U.5V
8V
B.U
CHRST
SMUTE
8V
8
5
10
IN
B.U.5V
AM+B
VDD 5V
R QUAL
R CLK
R DATA
P
A
CK IN
T
-END
L-CE
B.U.5V
REMO
TE
SW5V
GRN
RED
PHONE
CHMUTE
BEEP
SVR
STBY
SVR
AC GND(BEEP)
Lch Lch
Rch Lch
1200mV
3
2
1
TAPE :1778mV
CD/MD-CH :3592mV
AM :792mV
FM :1276mV
SW 5V
MUSIC
MUSIC
8V
RF GND
OSC GND
IF2 +B
AUDIO OUT
8V
S-METER
SD
PLL-SCL
PLL-SDA
M2 M1
Ref.103
Ref.94
Ref.95
Ref.105
Ref.102
HD1
AFC
NOISE
QUAL
MPOUT
R
MUTE
EQ MUTE
340mV
M-STBY
B.U.5V
B.U.5V
SW5V
8V
B.U.5V
AM: 175mV
FM: 213mV
L
(X13)
M M
A1
KRC-478R/RV/RY/RYV (E/E/E/E)