Block Diagram - Kenwood GX-204KE Service Manual

GX204KEF2/KHF2/LEF2
GX204REF2/SEF2
QQ
3 7 63 1515 0
(X14-967)
IC121
SUB
ANT
DIVERSITY
MAIN
ANT
USED
(0-00) (0-21)
USED
(0-00)
MD
0.8Vrms
MECHA
AUX 1.4Vrms(MAX)
AUX
0.8Vrms
6CD
MECHA
EXT CH 1.3Vrms
EXT
UNIT
NAVI 1.2Vrms
TE
L 13942296513
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2

BLOCK DIAGRAM

A1
FM
270mVrms
FM/AM
N/C
AM
FRONT-END
215mVrms
-3.8dB
IC141
RDS
USED
(2-71) (2-72)
MIX
IC551
ISO
IC201
ISO+LPF
0.0dB
IC222
ISO
0.0dB
(X34-401)
LED
(X34-405)
LED
(X00-410)
x ao
y
i
8
IC221
FRONT
E VOL
0.0dB
FM MPX
7BAND EQ
LPF
FAD
BAL
FM : -0.3dB
-4.5dB
REAR
AM : +15.6dB
-30.0dB
CD : +6.6dB
MD : +6.6dB
EXT CH :+2.6dB
AUX : +2.6dB
NAVI : -20.0dB
MUTE
(VOL. MAX)
ATT
-12.7dB
IC751 IC802
RESET
MUTE
ATT
LOGIC
-20.0dB
IC801
SYSTEM
u-COM
DC/DC
Q Q
AVR
3 6 7 1 3
Q602
IC501
VFD
PANEL
u-COM
IC1 IC2
VFD RESET
Q7
KEY
HTR-C
u-COM
Q5
ILL-
DET
u163
.
2 9 9 4 2 8
IC401
+26.0dB
4ch
POEWR
AMP
+26.0dB
IC251
SRS-
WOW
Q721
BU
DET
Q711
ACC
DET
Q352
ANT
CONT
Q806
ILL-
DET
Q805
ILL+
DET
Q692
LED
AVR
1 5 0 5 8 2 9 9 4
KEY
Q73
DC/DC
(UP)
Q51
DC/DC
ACC
(DOWN)
DET
Q41
IGN
AVR
Q31
LED
AVR
m
co
9 9
FRONT SP
REAR SP
BU
ACC
P ANT
USED
TEL
(2-71)
MUTE
(2-72)
ILL-
ILL+
2 8 9 9
SATELLITE
IGN
ACC
UART
ILL+
ILL-