Table Of Contents; Block Diagram - Kenwood KDC-4080R Service Manual

KDC-4080R/RV/RY/RYV
QQ
3 7 63 1515 0

BLOCK DIAGRAM .............................................................. 2

COMPONENT DESCRIPTION ........................................... 3
MICROCOMPUTER'S TERMINAL DESCRIPTION ............ 4
ADJUSTMENT .................................................................... 6
PC BOARD ......................................................................... 7
TUNER
Q200,201
FM+B FM+B
Q202,203
AM+B AM+B
IF1/IF2/PLL+B
TUN5V
VDD 5V
AUDIO OUT
TE
L 13942296513
S-METER
SD
SERVO
CD
A8V
BU5V
SW1
SW2
SW3
CLK
DATA M
DATA S
SRQ
MUTE
CS
RST
STOP
LO/EJ
MO SW
CH
RST
REQ C
CLK
DATA H
CH-CON
REQ H
DATA C
MUTE
BACK
UP
www
2
BLOCK DIAGRAM
Q204 BUFF
Q205
SW5V
,206
IC6
,208
RDS NOISE
DECODER AMP
BU5V
IC1
u-COM
IC3,Q50
RST
(X13)
PAN 5V
RST SW
IC2
REMOTE
IC1
CONTROL
x ao
y
LCD DRIVER
WITH
KEY MATRIX
. i
LCD
CONTENTS
SCHEMATIC DIAGRAM ................................................... 11
EXPLODED VIEW ............................................................ 19
PARTS LIST ...................................................................... 22
SPECIFICATIONS ............................................................ 29
A8V
IC2
203mV
FM
AM
170mV
1200mV
E-VOL
and
CD
MPX
CH
1200mV
Q Q
QUAL
3 6 7
LEVEL
MUTE
PHONE TEL-MUTE
Q13
ACC DET. ACC DET.
SVR
Q12
BU DET. BU DET.
Q51
DSI DSI
BU5V
Q207
PAN 5V SW
Q7
PANEL PAN 5V
SW5V
u163
ILL. SW
2 9 9 4
8
Q151-154
MUTE
IC5,
Q155,156
MUTE DRIVER
1 3 1 5 0 5 8 2 9
IC4
POWER IC
Q150
SVR SW
THERMAL
PROTECTION
Q14 Q1,2 Q17-20
SW5V BU5V P-CON
BU5V
Q5,6
A8V
Q3,4
SW14V
SERVO
m
co
Q8-11
ILLUM
.
2 8
9 9
PRE OUT
FM 1276mV
AM 792mV
CD 3529mV
CD-CH 3529mV
9 4 2 8 9 9
SP-OUT
TEL-MUTE
ACC
P-CON
BACK UP