Kenwood-CD-425-M-Service-Manual.pdf

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MULTIPLE COMPACT DISC PLAYER
CD-425M/4260M/4700M
DPF-J6030
SERVICE MANUAL
Front glass
(B10-3557-08)
Dressing panel
(A21-3813-08)
Front glass
(B10-3558-18)
© 2000-3/B51-5610-00 (K/K) 3037
Front glass
(B10-3559-08)
Dressing panel
*
(A21-)
Knob
(K29-7717-18)
Dressing panel
(A21-3815-08)
Panel
(A29-1081-18)
Knob
(K29-7716-18)
Panel
(A60-1753-38)
Oscillating module
(W02-1114-15)
Pin jack
(E63-1078-05)
Power cord bushing
(J42-0083-05)
Metallic cabinet
*
(A01-)
Miniature phone jack
Rectangular receptacle
(E11-0293-05)
(E58-0024-05)
Miniature phone jack
(E11-0360-05)
AC power cord
(E30-2883-05)
*
Illustration is CD-4260M/4700M.
*
Refer to parts list on page 18.
In compliance with Federal Regulations, following are
reproduction of labels on, or inside the porduct relating to
laser product safety.
KENWOOD-Crop. certifies this equipment conforms to
DHHS Regulations No.21 CFR 1040. 10, Chapter 1, Sub-
chapter J.
DANGER : Laser radiation when open and interlock
defeated.
AVOID DIRECT EXPOSURE TO BEAM.
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.
70%
CD-425M/4260M/4700M/DPF-J6030
CONTENTS / ACCESSORIES / CAUTIONS
Contents
CONTENTS / ACCESSORIES / CAUTIONS............. 2
EXTERNAL VIEW .......................................................2
CIRCUIT DESCRIPTION ............................................3
ADJUSTMENT ............................................................8
PC BOARD ................................................................ 9
SCHEMATIC DIAGRAM .......................................... 11
EXPLODED VIEW ....................................................15
PARTS LIST..............................................................17
SPECIFICATIONS ......................................Back cover
Accessories
Audio cord ....................... (2)
(E30-0505-05)
System control cord ........ (1)
(E30-2816-05)
Communication cord ....... (1)
(E30-2861-05)
Batteries (R6/AA) ............ (4)
Remote control units ...... (2)
(A70-1326-05): RC-KB2
REMOTE CONTROL UNIT RC-KB2
(A70-1336-18): RC-P0714
DISPLAY
POWER
ENTER
MODE
+100
SET
6
CHARACTER
DOWN
UP
¢
G
K
O
S
W
4
8
'
CURSOR
LEFT
RIGHT
BEST
SELECTON
CONFIRM
DISC
SELECTOR
DELETE
/CLEAR
DISC SKIP
DOWN
UP
Battery cover (A09-0374-08)
Battery cover (A09-1176-08)
Cautions
Operation to reset
The microcomputer may malfunction (impossibility to operate,
erroneous display, etc.) when the connection cords are un-
plugged while power is ON or due to an external factor. In this
case, execute the following method to reset the microcomputer
and return it to normal condition.
Unplug the power cord from the power socket and plug the
power cord into the socket again.
1
A
D
H
L
P
T
1
5
9
–
X
REMOTE CONTROL UNIT
RC-P0714
RANDOM
CHARAC.
/P.MODE
+10
SPACE
/CHECK
REPEAT
¡
B
E
M
Q
U
Y
6
2
0
I
.
(
4
C
F
N
R
J
V
Z
7
3
7
/
)
To reset the registered contents
The registered contents for title, music type, user file, best se-
lection and DTS disc can be reset by the following procedure.
Unplug the power cord from the power socket, and while
holding the
7
key depressed, plug the power cord into the
socket again.
EXTERNAL VIEW
Dressing panel
*
(A21-)
Front glass
(B10-2395-08)
Front glass
(B10-2396-18)
Dressing panel
(A21-3786-08)
MULTIPLE COMPACT DISC PLAYER
PUSH OPEN
0
TIMER PLAY
OFF ON
DISC SKIP
STANDBY
DISPLAY
CONFIRM
6
7
4
¢
RANDOM
REPEAT
ON/STANDBY
200 DISC LOADING WITH TWIN PICK UP MECHANISM
Knob
(K29-6885-38)
Panel
(A29-1087-08)
Knob
(K29-6824-18)
Panel
(A60-1755-18)
2
*
Illustration is CD-425M/DPF-J6030.
*
Refer to parts list on page 17.
CD-425M/4260M/4700M/DPF-J6030
CIRCUIT DESCRIPTION
1. Main Microprocessor : uPD784217GF501
Microprocessor periphery block diagram
IC2
CXD2587Q
(DSP)
CLOCK
XLAT
DATA
SCLK
SENS
SYSM
SCOR
SQCO
SQCK
IC6
35 CLOK
36 XLAT
44 DATA
33 SCLK
34 SENS
45 MUTG
46 SCOR
73 SQSI
75 SCK/SQCK
67 SCK_SW
CLK
SO
SI
STB
72 SI
74 SO
71 STB
S1_SW 56
S2_SW 28
S3_SW 27
D1_SW 58
D2_SW 57
R_CW 24
R_CCW 25
LOAD_SW 55
UNLOAD_SW 54
LOAD_P 31
LOAD_M 30
CD MECHA
S1_SW
S2_SW
S3_SW
DISC_SW1
DISC_SW2
ROTARY+
ROTARY-
LOAD_SW
UNLOAD_SW
LOADM+
LOADM-
IC13
uPD780232GC
(DOT DRIVER)
TIMER_SW
RESET 43
REG_ON 29
IC RESET 63
RESET INPUT
PERIPHERY IC ON
PERIPHERY IC RESET
uPD784217GF501
TIMER PLAY
ON/OFF
SERIAL COMMUNICATION
REMOCOM INPUT
POWER KEY
JOG
49 SBUSY
50 SDATA
48 REM
47 POWER
60 JOG_2
59 JOG_1
23 PWM
32 LDC
26 MON
70 DOOR_SW
53 PROTECT
IC10
ANALOG MUTE
10 RMUTE
84~91
(AD0~AD7)
76~83,92~98
(A0~A14)
RD 5
WR 6
CS 7
OE
WE
CS
CY62128L-70SC
(SRAM)
DISC SENSOR ON/OFF
LASER ON/OFF
SPINDLE MOTOR ON/OFF
DOOR OPEN/CLOSE
PROTECTION
2. Key matrix
PORT
VOLTAGE
RESISTER
2.9V
5.1K
2.0V
3K
1.2V
2K
0.4V
SHORT
A/D 0(IC13,22pin)
RANDOM
DISPLAY
STOP
PLAY
A/D 1(IC13,21pin)
REPEAT
CONFIRM
DOWN
UP
3
CD-425M/4260M/4700M/DPF-J6030
CIRCUIT DESCRIPTION
3. Microprocessor pin description (X32, IC6) :UPD784217GF501
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14-21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38,39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
Pin Name
A16(1M)
A17
SCL
SDA
RD
WR
CE
ASTB(CE)
VDD
RMUTE
RWRR
RWR
RTRN
L-D7-D0
VPP
+5VPWM
R-M-CW
R-M-CCW
MON
S3-SW
S2-SW
REG-ON
LOADM- (IN2)
LOADM+ (IN1)
LDC
SCLK
SENS
CLK
XLAT
VDD
X1,2
VSS
XT2
XT1
RESET
DATA
MUTEG(SYSTEM)
SCOR
POWER
REM
SBUSY
SDATA
AVDD
AVREF
PROTECT
UNLOAD-SW1
LOAD-SW1
S1-SW
DISC-SW2
DISC-SW
JOG2
JOG1
I/O
O
O
O
I/O
O
O
O
O
-
O
O
I
I
O
-
O
O
O
O
I
I
O
O
O
O
O
I
O
O
-
-
-
-
I
I
O
O
I
I
I
I/O
I/O
-
-
I
I
I
I
I
I
I
I
Description
No used.
No connection.
No connection.
No connection.
SRAM read strobe.
SRAM write strobe
Chip selector
No connection.
Power supply(+5V).
Analog muting signal output.
No connection.
No connection.
No connection.
No connection.
GND.
Disc sensor ON/OFF. L:on
Mechanism rotary motor(+). H:CCW
Mechanism rotary motor(-). H:CW
Control port of poor focus works.
Mechanism address detector switch.
Mechanism address detector switch.
Power ON/OFF control.
Loading motor(-) for main pickup.
Loading motor(+) for main pickup.
Laser on/off. L: Laser diode on.
Sens serial data read clock.
SENS signal input.
Serial data clock.
CXD2587Q latch. H
î
L:latch
Power supply(+5V).
Main system clock(12.5MHz).
GND.
No connection.
GND.
System reset signal input.
Serial data output.
System muting control output.
Sub code synchro detection.
Power key input terminal.
Remote control signal input.
Serial busy signal I/O.
Serial data signal I/O.
Power supply(+5V).
A/D reference power supply.
Detection signal input of protection.
Unloading switch for main pickup.
Loading switch for main pickup.
Mechanism address detector switch.
Disc2 sensor input..
Disc sensor.
Encoder signal input.
Encoder signal input.
4
CD-425M/4260M/4700M/DPF-J6030
CIRCUIT DESCRIPTION
Pin No.
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76-83
84-91
92-98
99
100
Pin Name
AVSS
LED
ICRESET
AVREF1
RXD-232C
TXD-232C
SQCK/SCK-SW
RXD-R
TXD-R
DOOR-SW
STB1
S1
SQS1
S0
SCK/SQCK
A0~A7
D0-7
A8~A14
A15(1M)
VSS
I/O
-
O
O
-
I
O
O
I
O
I
O
O
I
I
O
O
I/O
O
O
-
Description
GND.
STANDBY LED control terminal.
IC reset.
D/A reference power supply.
No connection.
No connection.
SQCK,SCK(DOT/DSP clock) selector. L:DSP.
No connection.
No connection.
Door open/close detector switch.
Strobe signal output to dot driver.
Data output to dot driver.
Sub code read data input.
Data input from dot driver.
Dot driver/sub code read clock.
Address output to SRAM.
SRAM data bus.
Address output to SRAM.
No used.
GND.
4. FL Microprocessor : UPD 780232GC-012 (X32-IC13)
Pin description
Pin No.
1
2
3,4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19,20
21,22
23
24,25
26
27-43
44-58
59
60
61-63
64
65-72
73-80
Pin Name
VDD
VSS
X1,2
VPP
RESET
SCK
SI
SO
POW-P
LED-A
LED-B
STANDBY
NC
STB
REM
NC
AVSS
A/D3,A/D2
A/D1,A/D0
VSS
AVDD/VDD
NC
P1-P17
P21-35
VDD
VLOAD
P18-P20
NC
1G-8G
9G-16G
I/O
-
-
-
-
I
I
I
O
I/O
O
O
O
-
I
I
-
-
-
I
-
-
-
O
O
-
-
O
-
O
O
Description
Power supply(+5V)
GND.
Main system clock.(5MHz).
GND.
System reset input.
Serial clock.
Data input.
Data output.
Timer sw on input.
.
No used.
No used.
No used.
No used.
Strobe signal input.
No used.
No used.
GND.
GND.
Key return signal input(1,0).
GND.
Power supply(+5V)
No connection.
FL control output. 1G(38),2G-16G(P1to P17).
FL control output. 2G-16G(P21to P35).
Power supply(+5V)
Negative power supply(-37.5V)
FL control output. 2G-16G(P18 to P20).
No connection.
FL control output.1G-8G.
FL control output.9G-16G.
5

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