Kenwood AR-404 Service Manual page 4

AR-404/KRF-A4030/A4030E/A4030-S
www.freeservicemanuals.info
4. Microprocessor CXP82840-163Q, CXP82832-162Q (X09, IC51)
4-1 Microprocessor periphery block diagram diagram
LED
(STANDBY)
POWER RELAY
SPEAKER A RELAY
SPEAKER B RELAY
X09, IC3
SELECTOR IC
TC9164AN
REMOCON
SERIAL COMMUNICATION
BUSY
DATA
X09, S516
VOLUME
ENCODER
X09, S518
MULTI
ENCODER
X09, S517
SELECTOR
ENCODER
4
CIRCUIT DESCRIPTION
FL DISPLAY ED51
10-BT-216GK
16SEGMENT
10GRID
X2
X09, IC51
Receiver u-COM
CXP82840-163Q
(E TYPE ONLY)
CXP82832-162Q
(OTHERS)
X2
X2
X2
Digitized in Heiloo Netherlands
KEY
MATRIX
X8
X3
KS0~KS7
KR0(12)
KS0(81) -
KS1(80) SPEAKER B
KS2(79) SPEAKER A
KS3(78) -
KS4(77) -
KS5(76) DSW2(D505)
KS6(75) TAPE2/MONITOR
KS7(74) -
PTY,DISPLAY and TA/NEWS keys are only RDS version(E type).
X09, IC54
RDS IC
X2
SAA6579/R
E TYPE ONLY
X05, IC2
TUNER
X1
LC72131
X3
8.0MHz
CE
RESET
TUNER MUTE
AUDIO MUTE
-10dB ATT
X09, IC2
VOLUME IC
X3
M62492FP
X09, IC52
EEPROM
X2
BR24C02
E TYPE ONLY
SD
STEREO
KR0~KR2
KR1(13) KR2(14)
S.DIRECT BAND
*DIMMER/PTY *P.CALL UP/DISPLAY
POWER *P.CALL DOWN/TA NEWS
- -
- DSW3(507)
DSW1(D504) DSW0(D510)
SOUND AUTO
BALANCE MEMORY
12/11/2017