Kenwood DM-3090 Service manual

STEREO MINIDISC RECORDER

MULTI CONTROL

TIME DISPLAY

DISPLAY/CHARAC.

TRACK/EDIT

ON/STAND BY

STEREO MINIDISC RECORDER

TIMER/
DELETE

ENTER

REC REC LEVEL

0 10

PHONES LEVEL

MIN MAX

PHONES

R

L

R

L

PLAY

OUT

REC

IN

DIGITAL

LINE

2

REC IN

1

REC INPLAY OUT

OPT.

RESET

DM-3090

SERVICE MANUAL

© 1997-11/B51-5396-00 (K/K) 1812

KENWOOD badge
(B43-0302-04)

Knob (POWER)
(K27-2261-08)

AC power cord bushing
(J42-0338-08)

Front glass
(B10-2457-08)

Panel
(A29-0898-08)

Optical digital input
(W02-2643-08)

Front panel
(A60-1370-08)

Analogue output terminal

(E63-1031-08)

Knob (JOG)
(K29-6946-08)

Knob
(K27-2262-08)

Knob (REC/HP)
(K29-6947-08)

Head phone jack
(E11-0345-08)

Optical digital output
AC power cord *
(E30-)

Digital input terminal
(E63-1032-08)

In compliance with Federal Regulations, following are
reproductions of labels on, or inside the product relating to
laser product safety,

(W02-2643-08)

Switch (RESET)
(S68-0091-08)

*Refer to parts list on page 49.

KENWOOD-Corp. certifies this equipment conforms to
DHHS Regulation No.21 CFR 1040.10, Chapter 1,
Subchapter J.

DANGER : Laser radiation when open and interlock
defeated.
AVOID DIRECT EXPOSURE TO BEAM.

If a problem occurs

If this product is subjected to strong external interference
(mechanical shock, excessive static electricity, abnormal
supply voltage due to lightning, etc.) or if it is operated
incorrectly, it may malfunction or the display may not
function correctly. If such a problem occurs, do the
following:

• Unplug the AC power lead from the AC socket.

• Wait about 20 - 30 seconds and then plug the AC power
lead back into the AC socket.

• Press the reset key on the back of the unit.

• When the reset key is pressed, all of the settings in memory

will be erased.

Beware of condensation

When water vapor comes into contact with the surface of
cold material, water drops are produced. If condensation
occurs, correct operation may not be possible, or the unit
may not function correctly.
This is not a malfunction, however, and the unit should be
dried.
(To do this, turn the POWER switch ON and leave the unit
as it is for several hours.)

Be especially careful in the following conditions:

• When the unit is brought from a cold place to a warm place
and there is a large temperature difference.

• When a heater starts operating.

• When the unit is brought from an air-conditioned place to
a place of high temperature with high humidity.

• When there is a large difference between the internal
temperature of the unit and the ambient temperature, or in
conditions where condensation occurs easily.

619

+10

2 3

4 5

7 8

0

DM-3090

CONTENTS/ACCESSORIES/CAUTIONS

CONTENTS

CONTENTS/ACCESSORIES/CAUTIONS...................2

CONTROLS.................................................................3

DISASSEMBLY FOR REPAIR.....................................5

BLOCK DIAGRAM.......................................................7

CIRCUIT DESCRIPTION.............................................9

TROUBLE SHOOTING..............................................16

Accessories

ADJUSTMENT...........................................................24

PC BOARD ............................................................... 32

SCHEMATIC DIAGRAM........................................... 37

EXPLODED VIEW .....................................................47

PARTS LIST...............................................................49

SPECIFICATIONS .......................................Back cover

Audio cord (2)
(E30-0505-05)

Remote control unit (1)
(A70-1208-08)

Battery cover (A09-0337-08)

Cautions

Optical fiber cable (1)
(B19-1529-05)

Batteries (2)

2

DIGITAL

LINE

REC

PLAY

OPT.

IN

OUT

2

REC IN1REC INPLAY OUT

L

RLR

RESET

RESET

Names and functions of parts

MULTI CONTROL

TIME DISPLAY

DISPLAY/CHARAC.

TRACK/EDIT

ON/STAND BY

STEREO MINIDISC RECORDER

TIMER/
DELETE

ENTER

REC REC LEVEL

0 10

PHONES LEVEL

MIN MAX

PHONES

1


2


3


456789



0!



@


#


$


%
^

1 Eject key:
2 Power switch (ON/STAND BY key)
3 Mini Disc Insertion slot
4 TIME DISPLAY key
5 DISPLAY/CHARAC key
6 TRACK/EDIT key
7 TIMER/DELETE key
8 Jog dial (Next/Previous)

9 ENTER key
0 Headphone jack (HONES)
! Headphone output level control
@ Record level control
# Record key:
$ Play/Pause key:
% Stop key:
^ Cue/Review key: /

−

∞

TOC DISC

TOTAL
REMAIN

RANDOM

TIMER REC CLOCK

TRACK

DATE 0dB OVER12 4

MONO LP PRGM

1
8

15

2
9

16

3
10
17

4
11
18

5
12
19

6
13
20

7

14

1


2


3


456



7


8


9


0


!


@


#


$


%


^


&


*


(


1 Pause indicator:
2 Record indicator:
3 Play indicator:
4 Monaural Long-Play Mode indicator
5 Programme indicator
6 Repeat indicator:
7 Total Time/Remaining Time indicator
8 Random indicator
9 Timer Playback/Timer Recording indicator
0 Clock indicator

! Music Calendar
@ More Tracks indicator
# Recording Level indicator
$ Recording level too high indicator
% Level Meter/Character Information display
^ Date indicator
& Track indicator
* Disc Name indicator
) TOC Indicator: TOC

Front panel

Display

Display

DM-3090

CONTROLS

3

Remote control unit

POWER

DISPLAY

TIME

DISPLAY

6

1

9

+10

REC

MODE

PLAY

MODE

AUTO
MARK

REC

CANCEL

SYNCHRO

REC

REC

REC

INPUT

TRACK EDIT TIMERENTER

PROGRAM

CLEAR

EJECT

2 3

4 5

7 8

0

SELECT

REMOTE CONTROL UNIT

RC-M0301

7


6


5

4


3


2


1


4 Basic operation keys

/

: Skip down/ Skip up
(Cue/Review) key

REC : Record key

: Stop key
: Play/Pause key

PLAY MODE

: Play mode key

7 Display keys

DISPLAY : Display key
TIME DISPLAY : Time display

key

Model: RC-M0301
Infrared ray system

The remote control unit incorporates the basic operation keys as well as a variety of applied operation keys
so that it can be used in a wide range of purposes.
Use care to store the remote control unit in a safe place so as not to lose it.

1 POWER key

2 EJECT key

3 Numeric keys

6 Recording operation keys

REC INPUT: Input select key
REC MODE: Record mode key
AUTO MARK: Auto mark key
REC CANCEL: Record cancel

key

Plug the stereo headphones (with standard-plug) available in audio stores into the PHONES jack and adjust the listening volume
with the PHONES LEVEL control on the front panel.

Listening through headphones

5 Applied operation keys

ENTET: Entet key
TRACK EDIT: Edit key
TIMER: Timer key
SYNCHRO REC:

Synchro recording key

PROGRAM: Program key

DM-3090

CONTROLS

4

PHONES LEVEL

PHONES

MAX

MIN

REMOVING AND REINSTALLING THE MAIN PARTS

MD MECHANISM SECTION

Perform steps 1 to 3 of the disassembly method to remove the
MD mechanism.

How to remove the magnetic head
(See Fig. 10-1)

1. Remove the screws (A1) x 1 pc.
10
Caution:

Take utmost care so that the magnetic head is not damaged
when it is mounted.

How to remove the cartridge holder
(See Fig. 10-2)

1. Open the roller arm lever in the arrow direction, and lower
the clamper lever to the rear side.

2. Apply +5V to the red line side of blue connector of loading
motor, push the rack gear in the arrow direction to move the
cam plate lever until tick is heard.

3. Remove the screw (B1) x1 pc., and the spring (B2) x1 pc.,
fitted to the holder arm, and shift the cartridge holder to the
left side to remove it.

How to remove the mechanism switch PWB
(See Fig. 10-3)

1. Remove the screws (C1) x 2 pcs., and remove the mecha­nism switch PWB.

Figure 10-1

Figure 10-2

Figure 10-3

DISASSEMBLY FOR REPAIR

DM-3090

(A1)x1
ø1.7x5mm

Magnetic Head

MD Mechanism

Loading Motor

Clampa Lever

Lack Gear

Roller Arm Lever

Cam Plate Lever

(C1)x1
Ø1.7x3mm

Slider Lever

Cartridge Holder

(B2) x1

(C1)x1
Ø1.7x9.5mm

MD Mechanism
Switch PWB

(B1) x1
Ø1.7x5mm

5

How to remove the sled motor/loading motor
(See Fig. 11-1)

1. Remove the screws (D1) x 1 pcs., and remove the sled

motor/loading motor.

Caution:

Be careful so that the gear is not damaged.
(The damaged gear emits noise during searching.)

Figure 11-1

Figure 11-2

Figure 11-3

How to remove the spindle motor
(See Fig. 11-2)

1. Remove the screws (E1) x 3 pcs., and remove the spidle
motor.

Caution:

Be careful so that the turntable is not damaged.

How to remove the optical pickup
(See Fig. 11-3)

1. Remove the screws (F1) x 3 pcs.
Caution:

Be careful so that the gear is not damaged.
(The damaged gear emits noise during searching.)

DM-3090

DISASSEMBLY FOR REPAIR

Loading
Motor

Turntable

(D1)x2
Ø1.7x2mm

(D1)x2
Ø1.7x2mm

Sled Motor

(E1)x3
Ø1.7x2.5mm

(F1)x3
Ø1.7x9.5mm

Spindle Motor

Optical Pickup

6

Figure 28BLOCK DIAGRAM (1/2)

D6.5/4.75 ~ 5.25V

MECHAN1SM

6.5/4.75~5.25V

D3.2V

SYSCLK

DVDD

DVDD

D3.2V

DIGITAL

3.2V

D3.2V

D4.3V

D4.3V

D3.2V

D4.3V

D3.2V

BACKUP

VOLTAGE

REGULATOR

POWER

IC1402
S29294A
E

2

PROM

IC1601

M56758FP

5-CH

MOTOR

DRIVER

BACKUP

MD MICRO COMPUTER

IC1401

IX0227AW

MD SYSTEM

MICRO

COMPUTER

DIGIN(EIAJ)

PDOWN

DIGOUT(EIAJ)

GND

GND

1
2

4

3

BCLK

MUTE

DFS0

DADATA

LRCLK

ADDATA

DFS1

LOAD IN
RESET
MD-ST
DSCK
SERCH

1
2

24

23

22

21

20

19

18

17

16

15

14

4
5
6
7
8
9

13

10
11
12

3

D.GND

D.GND

D.GND

D.GND

DSTB

MDDATA

KDATA

4M

DRAM

ENDEC
ATRAC

IC1201

LR37648

OSCILLATOR

XL1201

(33.8688MHz)

SW1956

SW1955

SW1954

SW1953

SW1952

Q1251~Q1254

MD

RECORDING HEAD

M901
SPINDLE MOTOR

M902

SLED MOTOR

M903

LOADING SWITCH

RECSWITCH

PLAYSWITCH

LEAD INSWITCH

A–BSIGNALE–FSIGNAL

RF1 ~ RF4SIGNAL

HEAD DRIVE

SIGNAL

IC1251

IC1101
IR3R55

RF

SIGNAL

PROCESSOR

LOADING MOTOR

HEAD UP/DOWN

M

M

DIRECT SWITCH

WRITE PRO

M

LASER DIODE

MONITOR DIODE

RF4

RF3

RF2

RF1

LIGHT

RECEIVING

SECTION

ERROR
SIGNAL

LIGHT

RECEIVING

SECTION

RF

F
A
B
E

FOCUS

TRACKING

PICK UP UNIT

IC1202

IX2474AF

CNP1904

CNP1902

IC1906
AND GATE TC7ST08F
IC1907
CLOCK GENERATOR TC92ASF
IC1990
INVERTOR 74AC04FS

IC1916
AND GATE
74VHC08F

BLOCK DIAGRAM

DM-3090

7

Figure 29BLOCK DIAGRAM (2/2)

LINE IN

J101

IC101

NJM4560D

OPE AMP

+7V

+7V

-7V

-7V

REC VOL

VR901

SYSCLK

AD DATA

LRCLK

BLCK

DA DATA

MODE

CLK

DATA

Q601
Q602

IC501

REGULATOR

S81233YK

J301
DIGITAL -IN
(COAXIAL JACK)

SO302
DIGITAL IN
(OPTICAL JACK)

RX302
DIGITAL OUT
(OPTICAL JACK)

IC301

74HCU04

INVERTER

IC302

NAND GATE

74HC10AP

DIGITAL IN

MD UNIT

DIGIN VCC
DIGITAL OUT

Q503

A-7V
POWER
CIRCUIT

MD+
POWER
CIRCUIT

5V SYSTEM
POWER
CIRCUIT

BACK UP 5V

DIGITAL 5V

MD 5V
MD+

S-ID,SYN,RESET,DSTB,DSCK

K-DATA,MD DATA

FL DISPLAY +B

FL901

~ ~

~ ~

DIG
SEG

JOG

KEY

RX-IN

IC901

IX0196AW

SYSTEM

MICROCOMPUTER

MD

MUTE

SW901

JOG

SWITCH

KEY IN

BLOCK

UN970
REMOTE
SENSOR

FL VP(-31V)

A/D +5V

BACK UP +5V

FL

POWER

CIRCUIT

FL VP(-32V)

FL DISPLAY +B

RECTIFYING
CIRCUIT

F551

1A L 250V

F552

1A L 250V

T551

POWER TRANSFORMER

AC 230V

50Hz

HEADPHINES

J981

H.P.VOL

VR981

IC651

NJM4560D

OPE AMP

Q451
Q452

MUTE

J101

LINE OUT

3

4

5

1

7

8

3
5

121916

13

15

24
26

10
2

3

4

5

1
7

2

1

3

8

3

4

5

1

7

8

8

13

2

6

13
10

17

21

21

42

60 89

45

90

92 97

2
3

6

32

10

33

96

91

100

~

~

+7V

-7V

IC201

UDA1340

AD/DA

CONVERTER

IC601

LINE AMP.

NJM4580D

Q502

Q506

Q504

A+7V
POWER
CIRCUIT

3V

~

8

DM-3090

BLOCK DIAGRAM

1 RF1 I

I
I
I

I

I
I
I

I
I
I

I
I
I

O
O
O

O
O
O
O
O
O

I
O
O

O
O

–

–
–
–

–

–

–

–
–
–

I

–

I

O
O

O
O

–

O
O

RF signal input terminal 1 Input of RF signal output of pickup
2 RF2 RF signal input terminal 2 Input of RF signal output of pickup
3 RF3 RF signal input terminal 3 Input of RF signal output of pickup
4 RF4 RF signal input terminal 4 Input of RF signal output of pickup
5 REFI Reference voltage amp. input terminal
6 REFO Reference voltage amp. output terminal
7 RFADD RF1 to 4 resistance addition output terminal
8 TCGI Track cross detection signal amp. input terminal for groove
9 AIN Servo signal amp. (focus servo system) inversion input terminal
10 BIN Servo signal amp. (focus servo system) inversion input terminal
11 EIN Servo signal amp. (tracking servo system) inversion input terminal
12 FIN Servo signal amp. (tracking servo system) inversion input terminal
13 BIAS Bias input terminal
14 AVCC Analog section power terminal
15* VSTBY Logic signal output terminal (STBY signal inversion signal is output.)
16* XDISC Logic signal output terminal (DISC signal inversion signal is output.)
17* XSGAIN Logic signal output terminal (SGAIN signal inversion signal is output.)
18 AGND Analog section GND terminal
19 DGND Digital section GND terminal
20 DTEMP Chip temperature detection terminal
21 LATCH Latch signal input terminal
22 CLOCK Clock signal input terminal
23 DATA Serial data input terminal
24 DVCC Digital section power terminal
25 FOUT Servo signal amp. (tracking servo system) output terminal
26 EOUT Servo signal amp. (tracking servo system) output terminal
27 BOUT Servo signal amp. (focus servo system) output terminal
28 AOUT Servo signal amp. (focus servo system) output terminal
29 TCGO Track cross detection signal amp. output terminal for groove
30 WBO Comparator output terminal for ADIP signal binary-coding
31 22KI Comparator input terminal for ADIP signal binary-coding
32 22KO ADIP signal HPF amp. output terminal
33 ADLPFO ADIP signal LPF amp. output terminal
34* NC NC
35 ADIPO ADIP signal primp. output terminal
36 ADIPI ADIP signal AGC amp. output terminal
37 ADAGC ADIP signal AGC smoothing capacitor connection terminal
38 ADAGI ADIP signal AGC amp. input terminal
39 RF2-1 RF1 and RF2 difference signal
40 EFMO RF signal primp. output terminal
41* WFMI RF signal AGC amp. output terminal
42 AVCC Analog section power terminal
43 AGND Analog section GND terminal
44 EFMAGC EFM signal AGC smoothing capacitor connection terminal
45 EFMAGI EFM signal AGC amp. output terminal
46* ATTR Pins 47 and 48 output signal attenuation terminal
47 GOUT Output of signal of RF1+RF2-RF3-RF4 for groove
48 POUT Rf1 to 4 resistance addition output for pit

IC1101 VHiiR3R55//-1:RF Signal Control (IR3R55)

Pin No.

Terminal Name I/O

Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

CIRCUIT DESCRIPTION

DM-3090

9

DM-3090

1* EFMMON Output EFM monitor output
2 AVCC — Analog power
3 EFMI Input EFM signal input from RF amp.
4 AGND — Analog GND
5 AIN Input Focus error signal A
6 EIN Input Tracking error signal E
7 TCG Input Track cross signal
8 BIN Input Focus error signal B
9 FIN Input Tracking error signal F
10* VBAT Input Power voltage detection signal for constant voltage servo
11 WBI Input ADIP wobble signal
12 VDD1 — Digital power
13 DGND — Digital GND
14,15 TEST0,TEST1 Input Input for test. Connection to GND in case of normal use
16 TEST2 Input Input for test. Endecode/servo mode and ATRAC mode selection
17 X176KO Output Clock output. f=176.4 kHz (4fs)
18 FODRF Output Focus servo forward output. PWM
19 FODRR Output Focus servo reverse output. PWM
20 TRDRF Output Tracking servo forward output. PWM
21 LATCH Output Tracking servo reverse output. PWM
22 CLOCK Output Slide servo forward output. PWM
23 DATA Output Slide servo reverse output. PWM
24 DVCC Output Spindle servo forward output or spindle servo output. PWM
25 FOUT Output Spindle servo reverse output or spindle rotation (forward/reverse)selection
26 EOUT Output Address output to external D-RAM. ADR3
27 BOUT Output Address output to external D-RAM. ADR2
28 AOUT Output Address output to external D-RAM. ADR1
29 TCGO Output Address output to external D-RAM. ADR0 (LSB)
30* WBO Output Address output to external D-RAM. ADR10 (MSB)
31 22KI — Power supply for DRAM interface
32 22KO Output Address output to external D-RAM. ADR4
33 ADLPFO Output Address output to external D-RAM. ADR5
34 NC Output Address output to external D-RAM. ADR6
35 ADIPO Output Address output to external D-RAM. ADR7
36 ADIPI Output Address output to external D-RAM. ADR8
37 ADAGC Output Data output enable signal output to external D-RAM
38 ADAGI — Digital GND
39 RF2-1 Output Column address strobe signal output to external D-RAM
40 EFMO In/Output Data input/output from and to external D-RAM. D2
41 WFMI In/Output Data input/output from and to external D-RAM. D3 (MSB)
42 AVCC Output Data input/output from and to external D-RAM. ADR9
43 AGND Output Low address strobe signal output to external D-RAM
44 EFMAGC Output Data write enable signal output to external D-RAM
45 EFMAGI In/Output Data input/output from and to external D-RAM. D1
46 ATTR In/Output Data input/output from and to external D-RAM. D0 (LSB)
47* GOUT Output Track cross signal
48* POUT Output ADIP CRC error flag monitor output
49* PLCK Output EFM PLL clock output in playback mode
50 EFM0 Output EFM signal output in record mode. C1F (C1 error flag) monitor output in playback mode
51* X700KO Output Clock output. f = 705.6 kHz. Clock output is not performed when RSTX = 0.
52* EXPORT0 Output Microcomputer extension output port 0
53* EXPORT1 Output Microcomputer extension output port 1

IC1201 VHiLR37648/-1:ENDEC/ATRAC (LR37648)

Pin No.

Terminal Name

Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Input/Output

CIRCUIT DESCRIPTION

10

54 TESO1 Output PLLLR. Microcomputer extension output port 2 in case of selection
55 TESO3 In/Output PLLOSC. Microcomputer extension output port 3 in case of selection
56 TEST4 In/Output EXTCLK. Microcomputer extension output port 4 in case of selection
57 CDDATA In/Output

High speed dubbing CD data input. Microcomputer extension output port 5 in case of selection

58 CDLRCK In/Output

High speed dubbing CD LR data input. Microcomputer extension output port 6 in case of selection

59 CDBCLK In/Output

High speed dubbing CD bit data input. Microcomputer extension output port 7 in case of selection
60 VXI Input Vari-pitch PLL clock input
61 VPO Output Vari-pitch PLL phase error output
62 VDD1 — Digital power
63 DGND — Digital GND
64 XI Input Oscillation circuit input. 33.8688 MHz
65 XO Output Oscillation circuit input. 33.8688 MHz
66 DIN Input Digital input signal
67 DOUT Output Digital output signal
68 VDD3 — Power for internal PLL
69 DGND — Digital GND
70 LRCK Output Music data Lch/Rch selection output
71 BLCK Output Music data shift clock
72 DFCK Output AD/DA converter digital filter clock. 256 Fs
73 ADDATA Input Audio data input
74 DADATA Output Audio data output
75* FEMON Output Focus error signal monitor output
76* TOTMON Output Total signal monitor output
77* TEMON Output Tracking error signal monitor output
78* SBCK Input DIN subcode read clock. EIAJ CP-309 Format
79* SBO Output DIN subcode serial data. EIAJ CP-309 Format
80* SBSY Output DIN subcode block sync signal. EIAJ CP-309 Format
81 SFSY Output DIN subcode frame sync signal. EIAJ CP-309 Format
82 FOK Output Focus OK detection signal. "0" : Focus OK
83 SENSE Output Servo status detection signal. "1": Auto-move, auto-jump, auto-focus retraction
84 COUT Output Track cross signal output
85 MCCK Output Microcomputer clock output. Clock output is performed also when RSTX = 0.
86 DINTX Output System controller interface interruption request output terminal
87 VDD1 — Digital power
88 DGND — Digital GND
89 RSTX Input Chip reset input. "L": Reset
90 SYD0 In/Output System controller interface data bus terminal (LSB)
91~96 SYD1~SYD6 In/Output System controller interface data bus terminal
97 SYD7 In/Output System controller interface data bus terminal (MSB)
98 SYWRX Input System controller interface register writing pulse input
99 SYRDX Input System controller register read pulse input
100 SYRS Input System controller interface register selection input

Pin No.

Terminal Name

Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Input/Output

CIRCUIT DESCRIPTION

DM-3090

11

1* P96/ANEX1 Output Not used
2* P95/ANEX0 Output Not used
3 P94/DA1 Output LDVAR (laser power adjustment output)
4* P93/DA0 Output ADJS (for automatic adjustment step check)
5* P92/TB2IN Output Not used
6 P91/TB1IN Input LD SW CK input (interruption input only in single state)
7 P90/TB0IN Input ERR input (monitor PLL UNLOCK)
8 BYTE Input GND
9 CNVss Input GND
10* P87/XCIN Output ST-ID Output
11* P86/XOUT Output MD search output
12 RESET Input RESETInput
13* XOUT — Extal clock output
14 Vss — GND
15 XIN Input EXTAL (8.4672 MHz)
16 Vcc — + 3.15V
17 P85/NMI Input Connect +B
18 P84/INT2 Input DINT (interruption input from MD LSI)
19 P83/INT1 Input DSENSE (servo sense input from MD LSI)
20 P82/INT0 Input ST-ID Input (MD-ON)
21 P81/TA4IN Input CD search input (syncro REC suspension input from MD LSI)
22 P80/TA4OUT Output MD RSW Output
23* P77/TA3IN Input FSW1 (SW power frequency selection)
24 P76/TA3OUT Output Vari-pitch correspondence given (H)/not given (L)
25 P75/TA2IN Input P-DOWN (power failure detection)
26 P74/TA2OUT Output HDON (magnetic head current ON/OFF output)
27 P73/TA1IN Output LD+ (loading motor + control output)
28 P72/TA1OUT Output LD- (loading motor + control output)
29 P71/TA0IN Input CIN (track count signal input)
30 P70/TA0OUT Input INN SW (inner SW detection input)
31 P67/TXD1 Output R-DATA
32 P66/RXD1 Output R-LATCH
33 P65/CLK1 Output R-CLK
34

P64/CTS1/RTS1/

Output DSTB (system controller communication enable and communication beingexecuted)

CTS0/CLKS1
35 P63/TXD0 Output MD DATA (MD Data Output)
36 P62/RXD0 Input K DATA (system controller data input)
37 P61/CLK0 Input DSCK (system controller communication clock input)
38

P60/CTS0/RTS0

Input 4M/16M DRAM selection input

39

P57/RDY/CLK

OUT

Output R/P output (REC/PLAY selection)
40 P56/ALE Input FOK (focus servo status monitor input)
41* WFMI Input/Output Not used
42 AVCC Output S2 Ouput
43 AGND Output S1 Output
44 EFMAGC Output SYRS (MD-LSI register selection signal output)
45 EFMAGI Output SYRD (MD-LSI read signal output)
46 ATTR Output SYWR (MD-LSI right signal output)
47 GOUT In/Output SYS D7 (data bus 7)
48 POUT In/Output SYS D6 (data bus 6)
49 PLCK In/Output SYS D5 (data bus 5)
50 EFM0 In/Output SYS D4 (data bus 4)
51 X700KO In/Output SYS D3 (data bus 3)

IC1401 RX-iX0227AWZZ:MD System Microcomputer (IX0227AW)

Pin No.

Terminal Name

Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Input/Output

DM-3090

CIRCUIT DESCRIPTION

12

52 P42/A18 In/Output SYS D2 (data bus 2)
53 P41/A17 In/Output SYS D1 (data bus 1)
54 P40/A16 In/Output SYS D0 (data bus 0)
55* P37/A15 Output Not used
56* P36/A14 Output Not used
57* P35/A13 Output Not used
58 P34/A12 Output EEPRO (EEPROM protection cancel)
59 P33/A11 Output EPCS (EEPROM chip selector output)
60 P32/A10 In/Output EEPD (EEPROM sirial data output)
61 P31A9 Output EEPK (EEPROM sirial colck output)
62 Vcc Input + 3.15V
63* P30/A8 Output Not used
64 Vss — GND
65* P27/A7 Output L3 DATA (soft serial communication, 2 modes provided, LSB fast)
66* P26/A6 Output L3 MODE (soft serial communication, 2 modes provided, LSB fast)
67* P25/A5 Output L3 CLK (soft serial communication, 2 modes provided, LSB fast)
68* P24/A4 Output Not used
69* P23/A3 Output Not used
70 P22/A2 Output PCNT0 output
71* P21/A1 Output Not used
72 P20/A0 Output LDON output (H: ON)
73 P17/D15 Output ANLPTR output
74* P16/D14 Output ADPON output (for CK)
75* P15/D13 Output DAPON output (for CK)
76 P14/D12 Output DFS0 output
77 P13/D11 Output DFS1 output
78* P12/D10 Output DIG EX output (for CK)
79* P11/D9 Output DIG CD output (for CK)
80 P10/D8 Output XRST (system reset output)
81* P07/D7 Output AD MUTE output (for CK)
82* P06/D6 Output EMPHA output (for CK)
83* P05/D5 Output DA MUTE output (for CK)
84 P04/D4 Output MUTE output
85* P03/D3 Output DOUTM output (for CK)
86 P02/D2 Input TEST2 (special mode selection 2)
87 P01/D1 Input TEST1 (special mode selection 1)
88 P00/D0 Input TEST0 (special mode selection 0)
89 P107/AN7/KI3 Input AVCK3 (special mode monitor input)
90 P106/AN6/KI2 Input AVCK2 (AD/DA section 3.1V monitor input)
91 P105/AN5/KI1 Input AVCK1 (DOUT section 5V monitor input)
92 P104/AN4/KI0 Input DTEMP (temperature detection input)
93 P103/AN3 Input MINF (disc type/REC input)
94 P102/AN2 Input TEST K1 (test key input 1)
95 P101/AN1 Input TEST K2 (test key input 2)
96 AVss — GND
97 P100/AN0 Input HINF (mechanism position/HEAD position)
98 VREF — + 3.15V
99 AVcc — + 3.15V
100 P97/ADTRG Input Connect +B

Pin No.

Terminal Name

Function

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Input/Output

CIRCUIT DESCRIPTION

DM-3090

13

DM-3090

IC901 RH-iX0196AFZZ: System Control Microcomputer (iX0196AW)

Pin No.

FunctionPort Name

Input/Output

Terminal Name

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

1* P77/AN7 KEY1 Output Not used
2 P76/AN6 KEY2 Input Key entry
3 P75/AN5 KEY3 Input Key entry
4* P74/AN4 — Output Not used
5 P73/AN3 INI Input Initial setting entry
6 P72/AN2 JOG_AD Input Jog dial entry
7*,8* P71/AN1,P70/AN0 — Output Not used
9* PB3 — Output Not used
10 PB2/DA DIG SEL1 Output Digital signal selector selection signal
11* P57/SRDY3/AN15 DIG SEL2 Output Not used
12* P56/SCLK3/AN14 — Output Not used
13* P55/SOUT3/AN13 — Output Not used
14 P54/SIN3/AN12 DAC_MODE Output Externally provided DAC/ADC serial interface mode signal
15 P52/SRDY2/AN11 DAC_CLK/EX Output Externally provided DAC/ADC serial interface clock signal
16 P52/SCLK2/AN10 DAC_DATA/EX Output Externally provided DAC/ADC serial interface clock signal
17* P51/SOUT2/AN9 — Output Not used
18 P50/SIN2/AN8 DFS0/DFS1 Input EMPHASIS information from MD
19 P67/SRDY1/CS/ DSTRB Input MD serial interface strobe signal

SCLK12
20 P66/SCLK1 DSCK Output MD serial interface clock signal
21 P65/SOUT1 K-DATA Output MD serial interface transmission signal
22 P64/SIN1 MD-DATA Input MD serial interface reception signal
23 P63/CNTR1 MD-LO/EJ Output MD loading power voltage selection signal
24* P62/CNTR0 — Output Not used
25* P61/PWM — Output Not used
26* P60 — Output Not used
27* P47/T3OUT — Output Not used
28* P46/T1OUT — Output Not used
29 P45/INT1/2CR P IN Input Power failure detection
30* P44/INT4 P.CNT Output Power control
31 P41 P-OUT Output MD power failure detection signal
32 P42/INT2 RX-IN Input Remote control loght reception signal
33 P41 P-MUTE Output Audio mute control signal
34 P40/INT0 — Input GND
35 RESET RESET Input RESET signal entry
36 PB1/Xcin Xcin Input Sub clock IN connection (32.7k)
37 PB0/Xcout Xcout Output Sub clock OUT connection (32.7k)
38 Xin Xin Input Main clock IN connection (8M)
39 Xout Xout Output Main clock OUT connection (8M)
40 VSS VSS Input GND
41 P27 SERCH Output CD to MD search monitor signal
42 P26 LOAD Input MD loading detection
43 P25 S-ID Output CD to MD start ID signal
44 P24 MD RESET Output RESET signal to MD

CIRCUIT DESCRIPTION

14

CIRCUIT DESCRIPTION

Pin No.

FunctionPort Name

Input/Output

Terminal Name

72-80 P97/SEG23- S0-S8 Output Segment for FL drive

P90/SEG16
81-88 P87/SEG15- S9-S16 Output Segment for FL drive

P80/SEG8
89,90 PA7/SEG7, S17,S18 Output Segment for FL drive

PA6/SEG6
91 VCC VCC Input +5V
92-97 PA5/SEG5- S19-S24 Output Segment for FL drive

PA0/SEG0
98 VEE VEE Input -30V
99 AVSS AVSS Input GND
100 VREF VREF Input +5V

45-54 P23/DIG19- UDIG0-UDIG9 Output Digit for FL drive

P12/DIG10
55,56 P11/SEG41/DIG9, UDIG10,UDIG11 Output Digit for FL drive

P10/SEG40/DIG8
57-60 P07/SEG39/DIG7- UDIG12-UDIG15 Output Digit for FL drive

P04/SEG36/DIG4
61-64 P05/SEG35/DIG3- S35-S32 Output Segment for FL drive

P00/SEG33/DIG0
65-72 P37/SEG31- S31-S25 Output Segment for FL drive

P30/SEG25

DM-3090

15