Kenwood KRC-594 Service Manual
©
2002-12 PRINTED IN JAPAN
B53-0017-00 (N)1874
DC cord
(E30-4790-05)
Plastic cabinet assy
(A02-1486-13)
Lever
(D10-4589-04)x2
Mounting hardware assy
(J22-0011-03)
Antenna adaptor
(T90-0523-05)
Screw set
(N99-1730-15)
DOLBY B NR
Panel assy
(A64-2850-02): KRC-594 /Y
(A64-2852-02): KRC-594V/YV
Escutcheon
(B07-3083-02)
CASSETTE RECEIVER
KRC-594/V/Y/YV
SERVICE MANUAL
The CASSETTE MECHANISM OPERATION DESCRIPTION is the same model D40-1122-05.
Please refer to the service manual for model D40-1122-05 (B51-7452-00).
KRC-594/V/Y/YV
2
DISASSEMBLY FOR REPAIR
How to remove the Volume Knob
1. Remove the rear cover of panel unit.
2. Juck up as remove the switch unit (x16-) and Volume Knob
as shown.
(CAUTION)
Volume Knob cannot pull of front side that looked at tab
point in the rotary encoder.
LIGHTING BOARD
CAP
Be careful of direction.
Rib: tall
CAP
KNOB(VOL)
Dented part
Rib: short
How to install the Volume Knob
1. Remove the peeling paper of LIGHTING BOARD BOSS
side.
2. CAP and LIGHTING BOARD are install positioning as
shown.
5. Install a Volume Knob in rotary encoder positioning as
shown.
KNOB(VOL)
BROAD SIDE
OTHER SIDE
Mount the Volume Knob into
the broad Y shaped cutting in
the direction of the picture.
3. Remove the peeling paper.(Use Tweezers)
4. CAP and Volume Knob are install positioning as shown.
KRC-594/V/Y/YV
3
BLOCK DIAGRAM
TUNER
CASSETTE
CH
BUFFER
RDS
DECODER
E-VOL
MPX
&
BUFFER
u-COM
DOLBY EQ
MOTOR
MAIN
AVR
SUB MOTOR
SUB MOTOR
DRIVER
PANEL 5V
EJECT ILLUMI
LCD
EJECT SW
PANEL DET
ROTARY
ENCODER
KEY MATRIX
LCD DRIVER
WITH
RESET SW
REMOCON
P CON
ANT CON
POWER
SUPPLY
IC
SW 5V
RESET
WIRED REMO
ACC DET
SURGE DET
B.U DET
TEL MUTE
BACK UP
TEL MUTE
ACC
SP OUT
POWER
IC
DRIVER
PROTECT
THERMAL
MUTE
PRE MUTE PRE OUT
IC2
IC7
IC9
Q51
Q53
IC11
IC8
IC3
IC6
IC4
IC1
PLL-DATA
PLL-CLK
IFC OUT
AUDIO OUT
S-METER
SW5V
A8V
AM+B
SW5V
R CLK
R DATA
S-METER
QUAL
AFS
QUAL
MP IN
LEVEL
TAPE
CH
AM
FM
MODE2
MODE3
SUB-
MOT +B
SUB+
MODE1
FOR(L)
FOR(R)
REV(L)
R REEL
F REEL
REV(R)
MTL ON/OFF
DOLBY ON/OFF
MUTE
MS OUT
MS MODE
F/R
SW5V
A8V
BACK UP
SUB-
SUB+
MOT +B
LX REQ M
BACK UP
LX RST
LX MUTE
LX DATA S
LX DATA M
LX CON
LX CLK
LX REQ S
BU5V
I2C DATA
I2C CLK
PANEL
EJECT ILL
EJECT
REMO
VOLUME B
VOLUME A
L DATAL
L CE
L DATAS
L CLK
ILLUMI
BU5V
A8V
FM+B
AM+B
BU5V
ACC DET
B.U DET
PHONE
EN1
EN2
EN3
RST
BEEP
P-MUTE
MUTE
BACK UP
BU5V
SW5V
3600mV
600mV
1800mV
1800mV
K,M-TYPE
FM
CH
AM
TAPE
MODE
1372mV
3600mV
855mV
1800mV
E-TYPE
A8V
DET
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