Service manual Kenwood KDC-W313, KDC-W3044, KDC-W3544.pdf

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KDC-W3044A_W3044AY_W3044G_W3044GY_W313A_W313AY_W313G_W313GY_W3544W_W3544WY
CD RECEIVER
KDC-W3044A/W3044AY
KDC-W3044G/W3044GY
KDC-W313A/W313AY
KDC-W317G/W313GY
KDC-W3544W/W3544WY
SERVICE MANUAL
© 2008-9 PRINTED IN JAPAN
B53-0678-00 ( N ) 181
Panel assy
KDC-W3044xx (A64-4657-02)
Panel assy
KDC-W313xx (A64-4658-02)
KDC-W3044
KDC-W313
Panel assy
KDC-W3544xx (A64-4656-02)
TDF SPARE-PANEL
MAIN UNIT NAME TDF PARTS No. TDF NAME
KDC-W3044A
Y33-2982-71
TDF-W3044A
KDC-W3044AY
Y33-2982-71
TDF-W3044A
KDC-W3544
KDC-W3044G
Y33-2982-72
TDF-W3044G
KDC-W3044GY
Y33-2982-72
TDF-W3044G
KDC-W313A
Y33-2982-73
TDF-W313A
KDC-W313AY
Y33-2982-73
TDF-W313A
KDC-W313G
Y33-2982-74
TDF-W313G
KDC-W313GY
Y33-2982-74
TDF-W313G
KDC-W3544W
Y33-2982-70
TDF-W3544W
KDC-W3544WY
Y33-2982-70
TDF-W3544W
Lever
(D10-7049-04) x2
DC cord
(E30-6800-05)
Carrying case
(W01-1710-05)
Escutcheon
(B07-3270-01)
Mounting hardware assy
(J22-0789-03)
This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
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KDC-W3044A/W3044AY/W3044G/W3044GY/W313A
KDC-W313AY/W317G/W313GY/W3544W/W3544WY
BLOCK DIAGRAM
ELECTRIC UNIT (X34- )
J2
R118
ANT.
BU
PHONE
PHONE
BU5
A1
J4
IC6
DME1
AM+B
A8V
Q101
TUNER
LX-BUS
BU
BU5
CD
MECHA
ACC-DET
FRONT-END
ACC DET
SW5
SERVO+B
2
POWER
3
16
IC
Q103
BU-DET
Q102
1
BU5
BU DET
J1
IC2
DC-CN
1
1
SURGE
PHONE
P STBY
DET
Q701-704
CN4,J5
SP-OUT
E-VOL
MUTE
FRONT L/R
REAR L/R
1
SW5
A8V
PRE-OUT
PRE-OUT
IC7
MUTE
FRONT
REAR/SW
RDS
DECODER
ROM CORRECTION (NOT USED)
IC4
ACC
B.U.
IC10
BU5
PS1 1 / PS1 2 / PS1 3
PS2 1 / PS2 2
P-ANT
P-CON
SW5
E2PROM
3
3
8
2
11
BU5
IC1
Q705
FL+B
BU5
BU DET
AM+B
MUTE
POWER
RST
SW5
SUPPLY
SYSTEM u-COM
IC
9
1
A8V
SW5
DC-CN etc
D5
BU5
IC8
1
1
2
1
1
5
PHONE
BU5
RESET IC
Q301
ACC DET / BU DET
Q2,3
P.ON FL
R11-15
PS1-1 / PS1-2 / PS1-3
PAN5V
CD
SERVO
SERVO+B
1/2W
PS2-1 / PS2-2
FL+B
Rx5
RST
BU5
Q11,12
J3
SW14V
SW5
CN
Q7-10
J1
R61,62
ILLUMI
+B
ILLUMI+B
to GND
1/4W
Rx2
FL+B
PANEL DET
IC1
ED1
S2
J2
S1
5
RESET
FRONT
ROTARY
ENCODER
FL
D3-17
FL
AUX
DRIVER
KEY
ILLUMI
SW5
IC2
9
S3-20
SW5
REMOTE
KEY
MATRIX
SWITCH UNIT (X16- )
CD PLAYER UNIT (X32-6240-00)
MOTHER
(X34- )
DPU1
IC4
Q11
SIGNAL A/B/C/E/F
SRAM STB
LEVEL
SHIFT
SRAM STB
PD
SO
SO
Q1
A
B
Q12
E
F
APC
LD
C
SI
BUCK
LEVEL
SI
SHIFT
BUCK
RF AMP
SERVO
Q10
VREF
+
CCE
PIO0
LEVEL
CCE
PIO0
SHIFT
IC3
PROCESSOR
+
R15
FO COIL
FO OUT
MP3 DECODER
WMA DECODER
LEVEL SHIFT
RESISTOR
FO OUT
TR OUT
DM OUT
FM OUT
+
MRST
MRST
TR COIL
TR OUT
+
C43
AAC DECODER
+
Lch
FILTER
Lch
MOTOR
DRIVER
1M bit SRAM
C44
DM1
Rch
FILTER
Rch
SPINDLE
DM OUT
Q13
REVERSAL
CIRCUIT
ZDET
MUTE L/R
DM2
A3.3V
LOADING &
AGND
A.GND
SLED
MOTOR
FM OUT
IC5
X1
BU1.5V/
CLOCK
D3.3V
BU5V
P.ON
16.934MHz
REG
Q14
OUTPUT
D.GND
S1
LOS-SW
S2
12EJE-SW
S3
LOE-SW
DRV MUTE
LO/EJ
MOTOR
S7.5V
S.GND
2
BOARD
MOTOR
D1.5V
102690727.032.png
KDC-W3044A/W3044AY/W3044G/W3044GY/W313A
KDC-W313AY/W317G/W313GY/W3544W/W3544WY
COMPONENTS DESCRIPTION
● ELECTRIC UNIT (X34-621x-xx)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
System μ-COM
Controls FM/AM tuner, the changer, CD mechanism, panel, volume and tone.
IC2
E-VOL
Controls the source, volume, tone.
IC4
Power Supply IC
Outputs 5V×2, 8.1V×2, 10.2V, P-CON, P-ANT.
IC6
Power IC
Amplifi es the front L/R and the rear L/R to 50W maximum.
IC7
RDS IC
Decodes RDS.
IC8
Reset IC
Lo when detection voltage goes below 3.6V.
Q2
Servo+B AVR
When Q3’s base goes Hi, Servo+B AVR outputs 7.5V.
Q3
Control SW for Servo+B
ON when the base goes Hi.
Q7
FL+B SW
ON when the base goes Hi.
Q8
FL+B AVR
When Q9’s base goes Hi, Servo+B AVR outputs 10.5V.
Q9
Control SW for FL+B
ON when the base goes Hi.
Q10
FL+B SW
ON when the base goes Lo.
Q11
14V SW
ON when the base goes Hi.
Q12
14V SW
ON when the base goes Lo.
Q101
ACC DET
ON when the base goes Hi during ACC is applied.
Q102
Serge DET
When the base goes Hi, surge voltage is detected.
Q103
BU DET
ON when the base goes Hi during BU is applied.
Q104
Mute Control
ON when the base goes Hi.
Q105
Mute Control
ON when the base goes Hi.
Q301
Panel 5V SW
ON when the base goes Lo.
Q701,702
Pre-out Mute SW
When a base goes Hi, pre-out is muted.
Q705
Mute Driver for Pre-out
ON when the base goes Lo.
● SWITCH UNIT (X16-646x-xx)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC1
FL Driver
IC2
Remote Control Sensor
● CD PLAYER UNIT (X32-6240-00)
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC3
4ch BTL Driver
Driver for focusing & tracking coil, driver for sled & spindle motor, and operation for disc
loading & ejection.
IC4
Servo DSP with built-in Audio DAC With built-in MP3/WMA/ACC decoder and 1M-bit-SRAM.
IC5
BU1.5V/D3.3V REG.
Power supply for BU1.5V.
Power supply for digital/analogue/audio 3.3V.
Q1
APC (Auto Power Control)
Drives LD (Laser Diode).
Q10~12
5V-3.3V Level Shift
Converts signal from 5V to 3.3V, or from 3.3V to 5V.
Q13
Inverter
Inverts ZDET (Zero data DETection) signal.
3
102690727.033.png
KDC-W3044A/W3044AY/W3044G/W3044GY/W313A
KDC-W313AY/W317G/W313GY/W3544W/W3544WY
COMPONENTS DESCRIPTION
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q14
D1.5V Output
Switches ON/OFF at one end of BU1.5V line which is separated into 2 directions.
Uses output voltage as D1.5V.
D1
Level Down
Lowers signal level by about 1.2V so that Lo level signal that turns the regulator ON/OFF
surely becomes Lo judgment level of the regulator SW.
D2
Laser Diode Protection
Prevents reverse bias which is applied to laser.
Laser destruction prevention.
D3,4
Static Electricity Countermeasure
Prevents malfunction by static electricity.
4
102690727.034.png
MICROCOMPUTER’S TERMINAL DESCRIPTION
KDC-W3044A/W3044AY/W3044G/W3044GY/W313A
KDC-W313AY/W317G/W313GY/W3544W/W3544WY
● SYSTEM μ-COM: IC1 on X34- (ELECTRIC UNIT)
Pin No.
Pin Name
I/O
Application
Truth Value
Table
Processing Operation Description
1
LX DATA M
I/O Data to slave unit
2
LX CLK
I/O LX-BUS clock
125kHz~65kHz
3~5
NC
- Not used
Output L fi xed
6
REMO
I Remote control signal input
Detects pulse width
7
NC
- Not used
Output L fi xed
8
BYTE
I Memory extension bus width setting
Connects to VSS
9
CNVSS
-
Connects to VSS, H: Possible to rewrite fl ash ROM
10
XCIN
- 32.768kHz
11
XCOUT
- 32.768kHz
12
RESET
-
L: Reset
13
XOUT
- 10.0MHz
14
VSS
-
15
XIN
- 10.0MHz
16
VCC1
-
17
NMI
I
Connects to VSS
18
PANEL DET
I Panel communication detection
H: Panel detached, L: Panel attached
19,20
NC
- Not used
Output L fi xed
21
ROMCOR DET I E2PROM writing request
H: E2PROM writing
22,23
NC
- Not used
Output L fi xed
24
PON FL
O Key illumination power supply control
ON: H, OFF: L
25
NC
- Not used
Output L fi xed
26
PON PANEL
I/O Panel 5V control
ON: L, 11 minutes after momentary power-down,
panel detached or ACC OFF: Hi-Z
27,28
NC
- Not used
Output L fi xed
29
AUD SCL
I/O E-VOL clock input/output
30
AUD SDA
I/O E-VOL data input/output
31
VFD SYS DATA O VFD data output
32
VFD PAN DATA I VFD data input
33
VFD CL
O VFD clock output
125kHz
34
VFD XBLK
O VFD data blanking output
H: Reset cancelled, L: Reset
11 minutes after momentary power-down, panel
detached or ACC OFF: L
35
CD SI
O CD mechanism serial output
36
CD SO
I CD mechanism serial input
37
CD CLK
O Serial clock output
(Only when playing MP3) f=1MHz
38
CD LOS SW
I CD loading detection
39
CD PIO0
I Communication request from mechanism DSP
H: Data request
40
CD SRAMSTB O 1M-bit SRAM standby
L: SRAM standby
41
EPM
I Flash ROM EPM input
L: Possible to rewrite fl ash ROM
Connects to VSS (Never set it to output H)
5
102690727.035.png

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