Kenwood AR-404 Service Manual page 4
Audio receiver
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Also See for AR-404:
- Service manual (22 pages) ,
- Instruction manual (19 pages) ,
- Service manual (22 pages)
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AR-404/KRF-A4030/A4030E/A4030-S
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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
TE
L 13942296513
X09, IC3
SELECTOR IC
TC9164AN
REMOCON
SERIAL COMMUNICATION
BUSY
DATA
X09, S516
VOLUME
ENCODER
X09, S518
MULTI
ENCODER
www
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
x
ao
y
i
X2
8
KEY
MATRIX
X8
X3
Q Q
3
6 7
1 3
KS0~KS7
KR0(12)
u163
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).
2 9
9 4
2 8
X09, IC54
RDS IC
X2
SAA6579/R
E TYPE ONLY
X05, IC2
TUNER
X1
LC72131
X3
1 5
0 5
8
2 9
9 4
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
m
KR1(13)
KR2(14)
co
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
9 9
2 8
9 9
- Quick Links:
- Service Manual
- Circuit Description
- Adjustment
- Parts List
- Specifications
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