Kenwood KRC-108S, Руководство по обслуживанию

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KRC-108S/188
3
BLOCK DIAGRAM
IC1
KEY
MUTE
B
.U DET
.
B.
U
AC
C
P-CONT
.
MUTE PRE
PO
WER IC
EQ.
AMP
AMP NC/MPX E-V
OL.
FR
ONT Lch
FR
ONT Rch
REAR Lch REAR Rch
J2
LED
T
APE MECHA
MAIN
IC5
1 Lch 2 Rch PRE OUT
IC2
IC4
IC3
SP OUT
REAR
RST SW
RST IC PST9130NR
IC6
A
CC DET
.
P-CONT
.
ANT
-CONT
J2
J5
HD74HC27FP
40W TD
A7384A
FM+B
Q201
AM+B
Q203
5V
AM BPF FM BPF
Q450,451 Q62 Q50 Q350
Q53
SW5V
Q56
8V
Q60
ILLUMI
B
U5V
Q51
SYSTEM u-COM
TD
A7400D
RST
Q370
ANT
-CONT
LA3161
M38258MCD
FP
7SEG LCD
ED1
FM ANT AM ANT RF GND
FM+B AM+B
OSC GND OSC GND OSC GND
VT
PLL +B
IFC OUT
SD
A
SCL
DIG GND
IF1+B
IF1 GND
S-METER
IF2 GND
SD
FM+B
PON
A
CC DET
B
.U DET
SCL
MUTE
SD
A
P CON
RESET
FWD/REV
MOTO R
Rch COM Lch
T
APE
MP IN AM MPX
OUT RR OUT LR OUT RF
LEVEL SCL SD
A
OUT LF
STBY MUTE
Rch Lch
T
-MUTE
FWD
REV
B.
U
SMUTE
9
(FF/REW)
B
U5V
AM+B
VDD 5V
P A CK IN
ANT CON
BEEP
SVR
AMP
. STBY
SVR A
C
GND(BEEP)
Rch
Lch
T
APE :1681mV
AM :546mV FM :1781mV
8V
RF GND
OSC GND
IF2 +B
A
UDIO OUT
8V
S-METER SD PLL-SCL PLL-SD
A
HEAD
R
55.6mV
B
U5V
B.
U
.5
V
8V
B
U5V
AM:
170mV
FM:
400mV
L
PA
C
K
IN
PLA
Y
FF/REW
ILL
9
KS0-KS4
KI0-KI3
25 25
SEG1-SEG22
COM1-COM3
AMP
. MUTE
8V
B
U5V
(X13)
M
F/E
KRC-188 ONL
Y