Kenwood KRC-31Y Service Manual
CASSETTE RECEIVER
KRC-31Y/36/366L/37/37Y
/391/394/394Y/466R
/4904Y
SERVICE MANUAL
Mechanism extension cord : W05-0477-00 (7P), W05-0609-00 (10P)
© 2002-10 PRINTED IN JAPAN
B51-7986-00 (N) 2139
KRC-36/37/37Y
/391/394
/394Y/466R
KRC-31Y/366L
KRC-4904Y
SRC
SRC
SRC
Panel assy
KRC-391:
(A64-2538-02)
KRC-XXXX
OFF
LOUD SCRL SCAN REP T.CALL M.RDMB.S/RDM MENU TI VOL ADJCLK
45Wx4
DISC
AUD
KRC-36:
(A64-2541-02)
KRC-466R:
(A64-2941-02)
KRC-394/394Y:
(A64-2945-02)
KRC-37/37Y:
(A64-2947-02)
Panel assy
KRC-XXXX
OFF
OFF
LOUD SCRL SCAN REP T.CALL M.RDMB.S/RDM MENU AUTO AMECLK
KRC-4904
LOUD SCRL SCAN REP T.CALL M.RDMB.S/RDM MENU AUTO AMECLK
45Wx4
DISC
AUD
WIDE BAND
45Wx4
DISC
AUD
KRC-366L:
(A64-2942-02)
KRC-31Y:
(A64-2946-02)
Panel assy
(A64-2948-02)
DC cord
(E30-4792-05)
Screw set
(N99-1610-15)
Plastic cabinet assy
(A02-1486-13)
Screw set
(N99-1719-05)
Depends on model. Refer to the parts list.
Mounting hardware assy
(J21-9716-03)
Antenna adaptor
(T90-0523-05)
Escutcheon
(B07-)
Lever
(D10-4589-04)
x2
KRC-31Y/36/366L/37/Y
FM ANT
AM ANT
RF GND
FM+B
AM+B
AM LO/DX
FM LO/DX
IF SELECT
RDS OUT
FM SD OUT
REQUEST
K2I-VTH
VCO-GND
FSD OUT
FM DET OUT
AM DET OUT
IF GND
COMMON+B
P-ON 5V
DIG GND
PLL DATA
PLL CLK
PLL CE
HI UP ADJ
FM+B
AM+B
A8V
SW5V
LO/DX
SD
S-METER
PLL-DATA
PLL-CE
SW5V
ACC-DET
BU-DET
SCL
MUTE
SDA
EN1
EN2
EN3
PANEL
RESET
DSI
CH MUTE
NOISE
DATA H
DATA C
REQ H
REQ C
CH RST
CH CON
CH CLK
Rch
COM
Lch
TAPE L/R
MP IN
AFS
QUAL
AM
MPX
OUT RR
OUT LR
OUT RF
LEVEL
SCL
SW5V
SDA
SCL
SDA
OUT LF
STBY
MUTE
SMUTE
5
10
BU5V
AFS
R QUAL
R CLK
R DATA
BU5V
REMO
SW5V
GREEN
RED
BU5V
PHONE
BEEP
SVR
P-MUTE
P-STBY
SVR
AC GND(BEEP)
TAPE L/R
PLL-CLK
SW5V
L-RES
L-CLK
L- DATA S
L- DATA L
MUSIC
EQ-MUTE
MS-CONT
MUSIC
EQ-MUTE
MS-CONT
FWD/REV
PACK IN
M-STBY
T-MODE
T-END
L-CE
340mV
SUB+
SUB-
Rch
Lch
PACK
T-END
M-STBY
T-MODE
FWD
REV
AUDIO
8V
MOTOR
BU14V
SW5V
IN
PLAY HEAD
SW5V
BU14V
BU5V
BU14V
EN1
EN2
EN3
P,CON
ILLUM
B.U.5V
AM+B
AUDIO
FM+BFM+B
AM+B
AUDIO 8V
AUDIO 8V
AUDIO 8V
BU5V
SW5V
TAPE
CD-CH
AM
FM
: 1719mV
: 3424mV
: 550mV
: 1727mV
TAPE
CD-CH
AM
FM
: 1786mV
: 3546mV
: 850mV
: 1345mV
AM : 160mV
FM : 213mV
CD L/R
1200mV
BU14V
CD L/R
8
RDS
ANT.
DECODER
SYSTEM u-COM
KEY
PAN 5V
MUTE
E2PROM
EQ AMP
CD ISO AMP
E-VOL
LCD DRIVER
LCD
DSI
REMO
RST SWPAN IN SW
GREEN
RED or
RST IC
TEL DET TEL MUTE
DRIVER
MAIN
SUB
AVR
SW5
B.U. DET
SURGE-DET
B.U.
ACC
P-CONT
DC CONNECTOR
REGULATOR
ACC DET
J2
VOLTAGE
MUTE
PRE
R-Lch
R-Rch
AMP
SVR
MUTE
THERMO
PROTECTION
FRONT Lch
FRONT Rch
REAR Lch
REAR Rch
IC4
J4
POWER IC
TDA7386
CD/MD
CHANGER
SP OUT
J5
PRE OUT
IC10
SUB MOTOR
DRIVER
MOTOR
DRIVER
IC1
IC2
IC12
IC9
IC2
IC1
IC11
IC7
IC8
Q2,3
IC6
TUNER
(X16)
(X14)
MM
TAPE MECHA
2
/391/394/Y/466R/4904Y
BLOCK DIAGRAM
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