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MULTIPLE COMPACT DISC PLAYER
CD-323M/324M
DPF-J5020
SERVICE MANUAL
© 1998-11/B51-5496-00 (K/K) 2945
MULTIPLE COMPACT DISC PLAYER
STANDBY
POWER
DISPLAY
DISC SKIP
0
PUSH OPEN
RANDOM
CONFIRM
REPEAT
6
7
4
¢
200 DISC LOADING WITH TWIN PICK UP MECHANISM
TIMER PLAY
OFF
ON
L
R
OUTPUT
SYSTEM
CONTROL
DIGITAL
OUT
DIGITAL
OUT
COAXIAL
OPTICAL
SL16 XS 8
KENWOOD badge
(B43-0302-04)
Knob
(K29-6885-38)
Panel *
(A29-)
Metallic cabinet
(A01-3501-08)
AC power cord *
(E30-)
Mini phone jack
(E11-0293-05)
Oscillating module *
(W02-1114-05) : T1E1
Power cord bushing
(J42-0083-05)
Slide switch
(S31-2132-05)
Phono jack *
(E63-1079-05) : KP1K1P2Y1
Phono jack
(E63-1078-05)
Front glass
(B10-2395-08)
Front glass
(B10-2396-18)
Dressing panel *
(A21-)
Dressing panel *
(A21-)
Knob
(K29-6824-18)
Panel *
(A60-)
* Refer to parts list on page 17.
Refer to CD-223M/DPF-J3010 service manual (B51-5409-
00) if require the following items in detail.
1) Mechanism operation description.
2) Disassembly for repair.
Illustration is CD-324M/DPF-J5020.
In compliance with Federal Regulations, following are
reproductions of labels on, or inside the product relating to
laser product safety.
KENWOOD-Corp. certifies this equipment conforms to
DHHS Regulation No.21 CFR 1040.10, Chapter 1, Sub-
chapter J.
DANGER : Laser radiation when open and interlock
defeated.
AVOID DIRECT EXPOSURE TO BEAM.
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CD-323M/324M/DPF-J5020
2
CONTENTS/ACCESSORIES/EXTERNAL VIEW
Contents
Audio cord (1)
(E30-0505-05)
System control cord (1)
(E30-2816-05)
Batteries (R6/AA) (2)
Remote control unit (1)
(A70-1257-08) : CD-324M/DPF-J5020
Battery cover : (A09-0374-08)
MULTIPLE COMPACT DISC PLAYER
STANDBY
POWER
BEST SELECTION
DISC SKIP
RANDOM
MODE
CONFIRM
REPEAT
DISPLAY/INSERT
6
7
4
¢
1
¡
P.MODE/CHARA.
ENTER
CHECK/
SPACE
CLEAR/
DELETE
SET
200 DISC LOADING WITH TWIN PICK UP MECHANISM
TIMER PLAY
OFF
ON
KENWOOD badge
(B43-0302-04)
Knob
(K29-6885-08)
Panel
(A29-0886-28)
Front glass
(B10-2485-08)
Front glass
(B10-2456-08)
Dressing panel
(A21-3749-08)
Dressing panel
(A21-3732-08)
Knob
(K29-6824-18)
Panel
(A60-1261-28)
Illustration is CD-323M.
* Refer to parts list on page 17.
CONTENTS/ACCESSORIES/EXTERNAL VIEW .......2
CIRCUIT DESCRIPTION ............................................3
ADJUSTMENT ............................................................8
PC BOARD .................................................................9
SCHEMATIC DIAGRAM ...........................................11
EXPLODED VIEW ....................................................15
PARTS LIST..............................................................17
SPECIFICATIONS ......................................Back cover
Accessories
External view
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CD-323M/324M/DPF-J5020
3
CIRCUIT DESCRIPTION
LOAD_P1
UNLOAD_SW1
SQCK
75
SQCK
LOADM+1
LOADM-1
LOAD_M1
SO
SI
DOT/QDATA
72
67
X32, IC14
STB1
74
71
47
55
56
uPD784215GF541
PERIPHERY IC RESET
JOG
IC RESET
ENCODE_B
ENCODE_A
X32, IC9
HM62256BLFP-8T
LDC
70
LASER ON/OFF
ON/STANDBY
MON
RMUTE
31
48
ANALOG MUTE
SPINDLE MOTOR ON/OFF
84~91
(AD0~AD7)
76~83, 92~99
1~2
(A0~A17)
8/16
A/D0
53
54
8BIT/16BIT
MODEL DISCRIMINATION
CS
CE
SERIAL
COMMUNICATION
WE
OE
IC2
X32, IC8
S1_SW
CLOCK
34
CDM-31
MECHA
3
4
7
S3_SW
S2_SW
S1_SW
S3_SW
S2_SW
DATA
XLAT
36
35
DATA
XLAT
CLOK
CLK
SO
SI
STB
7P
4P
CXD2587Q
(DSP)
uPD780204
(DOT
DRIVER)
POWER ON
PLAY ON/OFF
DISC SW
D_PWM
ROTARY+
23
10
D_SENS
24
25
28
29
26
27
D_PWM
SCLK
SENS
MUTEG
33
45
32
SCLK
SYSM
SENS
ROTARY-
LOAD SW1
UNLOAD_SW1
LOAD SW1
ROTALY_CW
ROTALY_CCW
SCOR
SUBQ
73
44
SQSO
SCOR
8
5
6
30
49
50
SBUSY
SDATA
ASTB
RD
WR
CS
1. Main microprocessor : uPD784215GF541 (IC8)
1-1 Microprocessor periphery block diagram
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CD-323M/324M/DPF-J5020
4
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Description
1
A16
O
No connection.
2
A17
O
No connection.
2
NC
­
No connection.
3
S3-SW
I
Mechanism address detector switch.
4
S2-SW
I
Mechanism address detector switch.
5
RD
O
SRAM read strobe.
6
WR
O
SRAM write strobe
7
S1-SW
I
Mechanism address detector switch.
8
ASTB(CE)
O
No connection.
9
VDD
­
Power supply (+5V).
10
+5VPUL
O
Disc sensor PWM output.
11
RTRN
O
No connection.
12
RWR
O
No connection.
13
RWRR
O
No connection.
14-21
L-D0-D7
O
No connection.
22
TEST
­
GND.
23
DISC-SW
I
Disc sensor.
24
ROTARY-CW
O
Mechanism rotary motor (+).
H : CCW
25
ROTARY-CCW
O
Mechanism rotary motor (-).
H : CW
26
LOADM+1
O
Loading motor (+) for main pickup.
27
LOADM-1
O
Loading motor (-) for main pickup.
28
LOAD-SW1
I
Loading switch for main pickup.
29
UNLOAD-SW1
I
Unloading switch for main pickup.
30
CS
O
SRAM CS.
31
MON
O
Control port of poor focus works.
32
SCLK
O
Sens serial data read clock.
33
SENS
I
SENS signal input.
34
CLOCK
O
Serial data clock.
35
XLAT
O
CXD2587Q latch.
36
DATA
O
Serial data output.
37
VDD
­
Power supply (+5V).
38, 39
X1, 2
­
Main system clock (12.5MHz).
40
VSS
­
GND.
41
XT2
­
No connection.
42
XT1
I
GND.
43
RESET
I
System reset signal input.
44
SCOR
I
Sub code synchro detection.
45
MUTEG
O
Muting control output.
H : MUTE ON.
46
STB2
O
No connection.
47
IC RESET
O
IC reset.
48
RMUTE
O
Analog mute.
L : MUTE ON.
49
SDATA
I/O
Serial data signal I/O.
50
SBUSY
I/O
Serial busy signal I/O.
51
AVDD
­
Power supply(+5V).
52
AVREF
­
A/D reference power supply.
53
A/D0
I
Model selector.
54
8/16
I
8/16 bit selector. H:16bit.
55
JOG2
I
Encoder signal A input.
1-2 Microprocessor pin description (X32, IC8)
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CD-323M/324M/DPF-J5020
5
CIRCUIT DESCRIPTION
Pin No.
Pin Name
I/O
Description
56
JOG1
I
Encoder signal B input.
57
DOOR-SW
I
Door open/close detector switch.
58
LOAD-SW2
I
GND.
59
UNLOAD-SW2
I
GND.
60
DISC-SW2
I
Disc2 sensor.
61
AVSS
­
GND.
62
LOADM-2
O
No connection.
63
LOADM+2
O
No connection.
64
AVREF1
­
D/A reference power supply.
65
RXD-R
I
No connection.
66
TXD-R
O
No connection.
67
SQCK/SCK-SW
O
"SQCK,SCK(DOT/DSP clock).
L: "DSP."
68
RXD SUB
I
No connection.
69
TXD SUB
O
No connection.
70
LDC
O
Laser on/off.
L: Laser diode ON.
71
STB1
O
Strobe signal output to dot driver.
72
S0
I
Data input from dot driver.
73
SQS1
I
Sub code read data input.
74
S1
O
Data output to dot driver.
75
SCK/SQCK
O
Dot driver/sub code read clock.
76-83
A14~7
O
Address output to SRAM.
84-91
D0~7
I/O
SRAM data buss.
92-98
A0~6
O
Address output to SRAM.
99
A15
O
No connection.
100
VSS
­
GND.
1-3 Key matrix
( ) : IC14 Pin No.
VOLTAGE
KEY RETURN 0 (33)
KEY RETURN 1 (32)
KEY RETURN 2 (31)
4.166V
323M
CHECK/SPACE
323M
MODE
323M
BEST SEL.
324M/J5020
DISPLAY
3.333V
323M
CLEAR/DELETE
323M
SET
RANDOM
2.5V
323M
FB
323M
ENTER
CONFIRM
1.666V
323M
FF
REPEAT
323M
DISP/INS
0.833V
DOWN
PLAY/PAUSE
0V
UP
POWER
STOP
323M
P.MODE/CHARA
CD-323M(K) COVER1,1p( 98.11.26 5:01 PM y[W 10