Kenwood DMF-9020 User manual

Kenwood
Brand
Kenwood
Model
DMF-9020
Type
User manual

This manual is also suitable for

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,
Subchapter J.
DANGER : Laser radiation when open and interlock
defeated.
AVOID DIRECT EXPOSURE TO BEAM.
Illustration is DMF-9020.
Refer to parts list on page 29.
STEREO MINIDISC RECORDER
DMF-9020/9020(S)
MD-2070
SERVICE MANUAL
©
1998-11/B51-5495-00 (K/K) 2945
EDIT/
SPACE
FADE/
DELETE
INPUT
MONITORREC INPUT
STEREO MINIDISC RECORD ER
TIMER
PHONES
KEYBOARD
LEVEL
MIN MAX
OFF
PLAYREC
SEARCH
TITLE
DISC LOADING MECHANISM
24 bit Rec. & Play D.R.I.V.E.
0
1 ¡
4 ¢
8
7 3
ENTER
/TIME DISPLAY
U PDOWN
PUSH SET
SEARCH
JOG DIAL
REC LEVEL REC BALANCE
MIN
L R
MAX
REC MODE
/CHARAC.
POWER
- O N – OFF
TEXT
R
L
SYSTEM
CONTROL
PLAY
OUT
OPT.COAX.
REC
IN
3 COAX.1 COAX. 2 OPT.
D I G I T A L
L I N E
PLAY
OUT
REC
I N
R
L
Knob
(K27-2178-04)
Knob
(K29-6700-03)
Knob
(K29-6692-04)
Front glass
(B10-2362-04)
Phone jack
(E63-0190-05)
Metallic cabinet
(A01-3449-01)
Phono jack
(E63-1066-05)
Oscillating module
(W02-1114-05)
AC Power cord *
(E30-)
Optic receiving module
(W02-1181-05)
Phono jack
(E63-1059-05)
Phono jack
(E63-0174-05)
Miniature phone jack
(E11-0188-05)
Power cord bushing
(J42-0083-05)
Knob
(K29-6697-04)
Color filter
(B11-0237-14)
Dressing panel ass'y
(A21-3756-03)
Knob
(K29-6695-14)
Knob
(K29-3741-04)
KENWOOD badge
(B43-0302-04)
Phono jack
(E63-1066-05)
DMF-9020(K) INT1,1P( 98.11.26 5:23 PM y[W 2
Caution on condensation
Condensation (of dew) may occur inside the unit when there is a great
difference in temperature between this unit and the outside.
This unit may not function properly if condensation occurs. In this
case, leave the unit for a few hours with the power left ON, and
restart the operation after the condensation has dried up.
Be specially cautious against condensation in a follow-
ing circumstance:
When this unit is carried from a place to another across a large
difference in temperature, when the humidity in the room where this
unit is installed increases, etc.
Operation to reset
The microprocessor may fall into malfunction (impossibility to operate
erroneous display, etc.) when the power cord is unplugged while power
is ON or due to an external factor. In this case, execute the following
procedure to reset the microprocessor and return it to normal condition.
With the POWER key left to ON, unplug the power cord
from the power outlet then, while holding the eject (
0
)
key depressed, plug the power cord again.
÷ Please note that resetting the microprocessor clears the contents
stored in, it returns the microprocessor to the condition when it left
the factory.
Before transporting or moving this unit, carry out the
following operations.
1. Set the POWER key to ON without loading a Mini Disc.
÷ Check that no disc is present in the unit.
2. Wait a few seconds and verify that the display shown
appears.
3. Set the POWER key to OFF.
Note related to transportation and
movement
N O D
I
S
C
DMF-9020/9020(S)/MD-2070
2
CONTENTS/ACCESSORIES/CAUTIONS
CONTENTS/ACCESSORIES/CAUTIONS...................2
CONTROLS.................................................................3
BLOCK DIAGRAM.......................................................5
CIRCUIT DESCRIPTION.............................................6
PC BOARD ................................................................. 9
SCHEMATIC DIAGRAM........................................... 13
EXPLODED VIEW .....................................................27
PARTS LIST...............................................................29
SPECIFICATIONS .......................................Back cover
CONTENTS
Remote control unit (1)
RC-M0905
(A70-1255-05)
Battery cover (A09-1106-08)
Batteries (2)
Audio
(E30-0505-05) (E30-2733-05) (B19-1529-05)
cord (2) System control cord (1) Optical fiber cable (1)
Cautions
Accessories
DMF-9020(K) INT1,1P( 98.11.26 5:24 PM y[W 3
DMF-9020/9020(S)/MD-2070
3
CONTROLS
Description of main unit keys
1 POWER key
: Press to turn the unit ON and OFF.
: The unit may enter the standby mode when the POWER key
is pressed to turn it ON. This is because the unit holds the
memory that it has been put to the standby mode by the
remote control unit in the last operation.
2Remote control sensor
3EDIT/SPACE key
EDIT
: Press to switch the editing mode ON/OFF.
SPACE
: Press to insert a blank space character during the title input
operation.
4TITLE INPUT key
: Press to switch the title input mode ON/OFF.
5TITLE SEARCH key
: Press to switch the title search mode ON/OFF.
: During title editing, press to switch the title change input
mode between the “overwrite mode” and “insert mode”.
6JOG DIAL
Skip down (4)/ Skip up(¢) knob
: During playback, rotate to skip tracks.
: Before starting recording in record mode, rotate to select the
recording setting adjustment mode.
: During title search, rotate to select a track number.
: During title input, rotate to select a track number or a
character.
: During editing, rotate to select the editing mode or a track
number.
PUSH SET knob
: For use in setting the editing result and input title in memory.
: When pressed in the recording pause mode, the MEMORY
REC function is set and recording starts from the sound
approximately 6 seconds before the current sound.
7REC MODE/CHARAC. (Character) key
REC MODE
: Press to switch the recording setting adjustment modes
(record modes) ON/OFF.
CHARAC.
: Press to select a character group during the title input
operation.
8ENTER/TIME DISPLAY key
ENTER
: For use in executing the editing and title input operations.
TIME DISPLAY
: Press to switch the time and title display.
9REC LEVEL knob
: Rotate to adjust the analog recording level.
0REC BALANCE knob
: Rotate to adjust the analog recording balance.
!Keyboard connector
: Connect an IBM PC compatible keyboard (optional) here.
@PHONES jack
: Connect stereo headphones (optional) here.
#PHONES LEVEL knob
: Rotate to adjust the volume of the headphones.
$ TIMER switch
: This switch is used in timer playback and timer recording.
% REC INPUT key
: Press to switch the recording input line between digital
(optical/coaxial), analog and monaural.
^ MONITOR key
: Press to monitor the sound being input from the source
while the unit is in stop mode.
& FADE/DELETE key
FADE
: Press to switch the fade mode ON/OFF.
DELETE
: During title editing, press to delete a character. During track
editing, press to delete a track.
* Mini Disc insertion slot
: When a Mini Disc is inserted while the unit is in the standby
mode, it is turned ON automatically.
( Eject (0) key
: Press to eject the Mini Disc.
) Manual search down (1) key
: This key also functions as the fast reverse key during
playback.
: During an editing mode, press to move the title input
cursor or to scroll the track title display to the left.
¡Manual search up (¡) key
: This key also functions as the fast forward key during
playback.
: During an editing mode, press to move the title input
cursor or to scroll the track title display to the right.
™Pause (8) key
: Press to let playback or recording pause temporarily.
£ Stop (7) key
: Press to stop playback or recording.
¢ Play (3) key
: Press to start playback.
∞ Record (¶) key
: Press to start recording.
In stop mode
: When the ¶ key is pressed while a recordable disc is present
in the unit, it enters record-pause mode.
(It enters record-pause mode at the position immediately
after the last existing track.)
In record-pause mode
: When the ¶ key is pressed, the SOUND SYNCHRO REC
standby mode is set.
: In the SOUND SYNCHRO REC standby mode, the set
functions in the same way as in the normal recording pause
mode.
Display / Main unit
EDIT/
SPACE
FADE/
DELETE
INPUT
MONITORREC INPUT
STEREO MINIDISC RECORD ER
TIMER
PHONES
KEYBOARD
LEVEL
MIN MAX
OFF
PLAYREC
SEARCH
TITLE
DISC LOADING MECHANISM
24 bit Rec. & Play D.R.I.V.E.
0
1 ¡
4 ¢
8 ¶
7 3
ENTER
/TIME DISPLAY
U PDOWN
PUSH SET
SEARCH
JOG DIAL
REC LEVEL REC BALANCE
MIN
L R
MAX
REC MODE
/CHARAC.
@
# $
%
^ & *
(
)
¡
£
¢
∞
™
6
3 4
7 8
0
9
1
2
5
IN
REPEAT
FADE
OVER
OUT
OVER (
-
dB)
(
-
dB)
MONO
MANUAL
A . PAUSE
R
L
REMAIN
TOTAL
SINGLECOPY
TITLE
•
•
•
•
•
•
•
•
•
•
•
•
¥¥ŸŸ
¥¥ŸŸ
912 7
5
1
3
40 30
21
18
0
1518 12
9
3
6
40 30
27
24
0
SEARCHPGM
MONITOR
ANALOG
32kHz
2
1 3
48kHz
44.1kHz
DIGITAL
15
21
!
POWER
- O N – OFF
Display
TITLE and SEARCH indicators MONO indicator
PGM (Program) indicator
COPY indicator
FADE, IN, OUT and peak level indicators
ANALOG input indicator
DIGITAL input 1/2/3 indicators
REPEAT indicator
SINGLE, TOTAL and
REMAIN indicators
Character information
display
A. PAUSE indicator
MANUAL indicator
MONITOR indicator
Operation indicators
¶ REC indicator
8 Pause indicator
3 Play indicator
Sumpling frequency
indicators
DMF-9020(K) INT1,1P( 98.11.26 5:24 PM y[W 6
DMF-9020/9020(S)/MD-2070
4
CONTROLS
2
Character editing keys
TIME DISPLAY key
: Press to switch the time and title display.
CHARA. (Character)/ P.MODE (Play
Mode) key
CHARA.
: Press to select a character group dur-
ing the title input operation.
P.MODE
: Press to initiate the program mode.
DELETE / CLEAR key
DELETE
: During title input, press to delete a
character.
CLEAR
: During editing, press to clear a selected
track number.
: In program mode, press to clear the
program.
SPACE / CHECK key
SPACE
: During title input, press to insert a blank
space character.
CHECK
: In program mode, press to check the
program contents.
7
EJECT (0) key
8
Editing mode keys
EDIT CANCEL key
: Press to cancel the editing operation.
TITLE INPUT key
: Press to switch the title input mode ON/
OFF.
TITLE SEARCH key
: Press to switch the title search mode
ON/OFF.
: During title editing, press to switch the
title change input mode between the
“overwrite mode” and “insert mode”.
SET key
: This key is used in the title assignment or
editing operations.
: When pressed in the recording pause
mode, the MEMORY REC function is set
and recording starts from the sound ap-
proximately 6 seconds before the cur-
rent sound.
ENTER key
: Press to execute editing or enter the
input title in memory.
EDIT key
: Press to switch the editing mode ON/
OFF.
Remote control unit
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.
The keys on the remote control unit with the same names as on the main unit have the same function as the keys
on the main unit.
Model: RC-M0905
Infrared ray system
3
MONITOR key
: Press to monitor the sound being input
from the source while the unit is in stop
mode.
METER key
: Press to switch the level meter display
contents.
RANDOM key
: Press to initiate the random play mode.
REPEAT key
: Press to switch the repeat modes for
repeat playback.
1
ON/STANDBY key
: Press to turn the unit between ON and
STANDBY (
/ ) modes.
5
Recording-related keys
REC MODE key
: Press to switch the recording setting ad-
justment modes ON/OFF.
AUTO/MANU. key
: Selects whether the track numbers are
to be marked automatically during re-
cording (AUTO) or to be marked manu-
ally after it (MANUAL).
AUTO PAUSE key
: When this key is pressed, the pause
mode is initiated automatically at the
point where the track number changes
during playback.
: When pressed in the recording or record-
ing standby mode, the AUTO REC PAUSE
mode is turned on.
REC INPUT key
: Press to switch the recording input line
between digital (optical/coaxial), analog
and monaural.
EDIT CANCEL
MONITOR
÷
0
REC MODE
SET
1
GHI
4
PRS
7
+100
METER
AUTO/MANU.
INPUT
ABC
ENTER
2
JKL
5
TUV
8
QZ
0
RANDOM
AUTO PAUSE
SEARCH
DEF
EDIT
3
MNO
6
WXY
9
+10
REPEAT
8
REC INPUT
CHARA.
DELETE
SPACE
TITLE
™™
/CUR.L CUR.R/
££
TIME
DISPLAY
POWER
REMOTE CONTROL UNIT
RC-M0905
4 ¢
£
7
CLEAR
CHECK
P.MODE
7
8
1
2
3
4
5
6
9
4
Basic operation keys
3 : Play key
4 , ¢ : Skip down/up keys
¶ : Record key
7 : Stop key
8 : Pause key
6
CURSOR / 1 , ¡ shuttle
CURSOR
: During title input, rotate to move the
cursor.
1 , ¡
: Use this during playback for forward and
reverse search.
9
Numeric keys
0-9
: Press when selecting a track number
directly.
+10
: Press when selecting a track number 10
or more.
+100
: Press when selecting a track number
100 or more.
: These keys are also used to select a
character or symbol during title editing.
DMF-9020(K) INT1,1P( 98.11.26 5:24 PM y[W 7
DMF-9020/9020(S)/MD-2070
5
BLOCK DIAGRAM
RF,TE,FE,SE
CONT,BUS
APC REF
I,J,
A,B,C,D,E,F
SPINDLE
FEED
FCS,TRK,SPIN,SLED PWM
AUDIO
SYSTEM
AC
TRK
FCS
-VFL
512fs
256fs
MECHA: MDM-04 (X33-1100-00)
(X25-617X-XX)
(X00)
(X14-4380-00)
MAIN (MECHA.)
u-COM
UPD784215GF533
256K SRAM
IC31
POWER
TRANSFORMER
FILTER
LINE
AVR
AVR
AVR
AVR
ANALOG 5V
DIGITAL HEAD MOTOR
+5V
BACK-UP
ACIRC
DSP
SERVO
ATRAC
MEMO. CONT
(CXD2652AR)
(CXA2523AR)
RF AMP
IC1
SERVO
(BH6511FS)
MOTOR
DRIVER
IC2
IC8
M
M
M
PLAY POS. SW
DRAM
IC7
PICKUP
KMS-260A
FL
ED1
FL DOT MATRIX
DRIVER
IC1
KEY
MATRIX
TIMER SW
IC2
JOG
REC SW
REFRECT SW
PROTECT SW
START LIMIT SW
DISC IN SW
BUFFER
IC37
REG.
+3.3V
DIGITAL+5V
5.0V
LOADING MOTOR
FEED
MOTOR
Q7
LASER DRIVE APC
DISC
MOTOR
DISC
IC35
MOTOR
DRIVER
PHONES
OUT
IN
LINE
OPT.
COAX.
OPT.
KEY
BOARD
REC
IN
OUT
PLAY
TEMP. DET.
AC
u-COM VDD
u-COM +5V
33V
FL AC
DIGITAL
IC5
HEAD
RECORDING
CONTROL
REMOTE
3.3V
E PROM
2
HEAD DRIVER
3.3V 5.0V
12V
3.3V 4Mx1
SENSOR
24bit RESOLUTION
D/A CONVERTER
DIGITAL
DIGITAL
24bit
OSC
ANALOG
IC11 (2/2)
MUTE
Q16-19
IC22 (1/2)
IC21 (1/3)
IC21 (2/3)
IC10
IC6
IC39 (2/2)
FIP12XM1GA
A1
S25
S3
IC34
IC39 (1/2)
IC7
IC13,14
J1
A1
A2
J7
D1
Q42,44
Q11
Q7,8
Q13
IC24 IC25
IC15
SRAM +5V
SHUNT
OUT
IN
ANALOG
2V/0.3K
0.5V/22K
15~ 21dBm
0.5Vp-p/75COAX.
DIGITAL (IN/OUT)
OPT.
5.0V
IC38
3.3V
D.R.I.V.E.
KAN06
SM5844AF
SAMPLING
CONVERTER
RATE
DIGITAL
X1
22.5MHz
IC26
REC
PLAY
(ANALOG)
IC10 (2/2),
A/D CONV.
(CS5360)
IC8
20bit
IC10 (1/2),
IC11 (1/2)
DATA
DEMOD.
DET.
SUBCODE
(LC8904Q)
RECEIVER
DIGITAL
INTERFACE
IC21 (3/3)
IC22 (2/2)
DIGITAL
1
3
2
DIGITAL
L1S1
D31,32
NON REG.
(LC89170M)
DECODER
CD TEXT
IC27
CD TEXT)
SUB u-COM
(TITLER and
IC28
256K SRAM
IC29
SYSTEM
CONTROL
SL16
J5
CONTROL
SYSTEM
(LC75710NE)
VR2
MUTE
Q7,8
DIGITAL
ANALOG
IC23
I/O
EXP.
IC32
IC36
COAX.
COAX.
D11
REC LEVEL
BALANCE
LOADING
VR1
DMF-9020(K) INT1,1P( 98.11.26 5:24 PM y[W 10
DMF-9020/9020(S)/MD-2070
6
CIRCUIT DESCRIPTION
No. Name I/O Description
1,2 - O N.C.
H; DIGITAL 1
5 RD O SRAM read strobe
6 WR O SRAM write strobe
7 CS O SRAM CS L; SRAM enable
8 ASTB O SRAM address strobe
9 Vdd - Power supply (Microprocessor)
10 POWER O Power terminal H; Power ON
11 MUTE O Mute control output L; Mute ON
13 SCHNG O E2PROM data IN/OUT change-over H; SDA output
14 SBUSY I/O 16 serial busy
15 SDATA I/O 16 serial data
16 SCL O E2PROM clock
17 SDA I/O E2PROM data
18 LDON O Laser ON / OFF control port H; LD ON
19 RMS O Pick RMS H; ON
20 XLAT O System IC latch
21 SENS I System IC sens
22 Vpp - GND
23 PROTECT I Detection port of protect switch L; Protect ON
24 REFLECT I Detection port of reflect switch H; Low reflect
25 DISCIN I Detection of disc input switch L; Disc out SW ON
26 STTLMT I Detection port of limit switch L; Start limit SW ON
27 PHOTSW I Detection of mechanism play position L; Photo sensor ON
28 REC SW I Input port of detection from REC position switch L; REC SW ON
29 LOADIN O Output port of loading motor control signal L; Loading OUT
30 LOADOUT O Output port of loading motor control signal L; Loading IN
31 MNT0 I FOK signal from CXD2652AR (IC2) L; Focus ON
32 MNT2 I Input port of monitor 2 from CXD2652AR (IC2)
33 XRST O Output port of reset signal to CXD2652AR (IC2)
34 TX O Output port of recording permitted signal
35 RECP O Laser power control to CXD2652AR (IC2)
36 MNT3 I Input port of monitor 3 from CXD2652AR (IC2)
37 Vdd - Power supply (Microprocessor)
-
-
41 OPEN O No used
42 GND I No used
43 RESET I Microprocessor hard reset
44 REM I Remocon signal input terminal
45 XINT I Input port of interrupted status from CXD2652AR (IC2)
46 CE I Microprocessor chip enable H; Enable / L; disable
47 SQSY I Input port of sub code Q from CXD2652AR (IC2)
48 DQSY I U-bit of digital IN / SUB Q sync input of CD format from CXD2652AR (IC2)
50 MNT1 I Input port of track jump detection from CXD2652AR (IC2)
51 Vdd - Microprocessor power supply (+5V)
52 AVref 0 - A/D reference voltage (Connect Vdd)
53~56 KR0~KR3 I Key return (KR0~KR3)
57 TMSW I Timer switch input 0.0V
OFF
1.25V
PLAY
3.7V
REC
5.0V
58 INISW1 I Detection selector
59 BACK I Back up voltage detection (Less than 2.2V : NG)
61 GND - GND
62 BACK ON O Back up charge control H; Charge ON
63 ENCA I Rotary encoder A
64 AVref 1 - D/A reference voltage (+5V)
65 SRDT I Data for reading input from CXD2652AR (IC2)
1-2 Pin description
1,2
3 EXLAT O Extension port latch
4 EXCL O Extension port clock
12 INISW2 O Destination selector H:DMF-9020,MD-2070
38,39 X2.1 Clock OUT/IN (12.5MHz)
40 Vss GND
49 DDQSY I DIR.(LC8904Q)SUB-Q thrust
60 ENCB I Encoder input B
1. Mechanism microprocessor : uPD784215GF533 (X25: IC31)
1-1 Microprocessor peripley block diagram
E2PROM
RF AMP
EXLAT:03
EXDT:71
DINSEL1
DINSEL2
DRON
ADRST
DARST
EMPHA
FLDRST
DIGRST
EXCK:04
CENA:70
CRXD:68
CTXD:69
SRCLAT:80
SRCDT:83
SRCCK:82
DEMPH:77
DSUB2:83
DSUB1:78
DRDT:73
DDQSY:49
DLAT:76
ENCB:60
31:MNT0
50:MNT1
ATRAC
DRAM
(X33) IC7
IC31
(X33) IC2
(X33) IC1
(X33) IC6
(X25) IC34
(X25) IC33
36:MNT3
32:MNT2
CXD2652AR
66:SWDT
20:XLAT
67:SCLK
65:SRDT
33:XRST
21:SENS
47:SQSY
48:DASY
45:XINT
35:RECP
34:TX
18:LDON
u-COM
19:RMS
CXA2523AR
13:SCHNG
DWDT:74
DCLK:75
17:SDA
16:SCL
LC75710NE
TC74HC4094
SM5844AF
ENCODER
FL DRIVER
(X14) S3
(X14) IC1
EXPANDER IC
AD/DA
SUB U-COM
SRC
LC8904Q
DIR
(X25) IC32
(X25) IC7,8
(X25) IC30
(X25) IC25
(X25) IC23
FLDCE:72
23:PROTECT
24:REFLECT
25:DISCIN
(MDM-04)
MD MECHA.
ENCA:70
27:PHOTSW
26:STTLMT
POWER:10
28:RECSW
MUTE:11
29:LOADIN
INISW2:12
INISW1:58
30:LOADOUT
TMSW:57
5:RD
KR2:55
KR3:56
7:CS
6:WR
SRAM
8BIT MEMORY
LATCH
KR1:54
KR0:53
~ ~
84:AD0
91:AD7
– BUS –
92:A8
98:A14
RESET:43
CE:46
BACKCHK:85
BACKV:59
BACKON:62
SDATA:15
SBUSY:14
REM:44
DMF-9020(K) INT1,1P( 98.11.26 5:24 PM y[W 11
DMF-9020/9020(S)/MD-2070
7
CIRCUIT DESCRIPTION
Pin No. Port Name I/O Description
1 SCLK O Text data read clock
2 NC O no use
3 XMODE O Text data decode LSI reset L : POWER DOWN
4-6 NC O no use
7 RESET – Microprocessor reset
8 VDD – Microprocessor power supply (+)
9 X2 O Oscillation (12MHz)
10 X1 I Oscillation (13MHz)
11 VSS – Microprocessor GND
12,13 NC O no use
14 DATA I/O IBM key board I/F data line
15 CLOCK_CHG O IBM key board I/F data output line H : CLOCK LINE LOW
16-20 NC O no use
LC89170M
CYBER TITLER
MECHA uCOM
(X25) J7
(X25) IC31
(X25) J2
(X25) IC27
(X25) IC28 (X25) IC30
IBM KEYBOARD
DQSY
DQSY73
1
ADDRESS
43
42
40
40
39
38
37
36
35
34
33
32
31
30
29
ASTB 44
RD 23
WR 22
CS 21
/DATA
HM62256BLFP-8T
TC-74HCT373AF
[ SRAM ]
BAS
SCLK
SRDT
XMODE
TTXD
TRXD
MTXD
MRXD
MENA
DATA
CLOCK
CLOCK_CHG
78
3
80
79
SUB
U-COM
51
50
49
14
77
15
RxD
CRxD
CTxD
DATA
CLOCK
CENA
TxD
SCLK
SRDT
XMOD
2. Sub microprocessor : uPD784035GC836 (X25 : IC28)
2-1 Microprocessor peripley block diagram
2-2 Pin description
1-3 Initialization
POWER = ON (DM-9090,DM-5090)
REC INPUT = ANALOG
AUTO CUT = OFF
AUTO/MANUAL = AUTO
= 0 dB
PLAY MODE = TRACK
REPEAT = OFF
TIME DISPLAY = SINGLE(+)
LEVEL METER MODE = NORMAL MODE
AUTO TNO TIME = 2 sec
AUTO TNO LEVEL = 0 (-55 dB)
REC END WRITE = ON
DRIVE = ON
PRESET TITLE = PRE1 : Pops
PRE2 : Rock
PRE3 : Classic
PRE4 : Jazz
PRE5 : Disco
PRE6 : Best Hits
PRE7 : Air Check
PRE8 : No.
PRE9 : Vol.
: Backup item
1-5 Key voltage matrix
Model INISW INISW
DMF-9020
3.5 (V)
MD-2070
HIGH
1-4 Switch control table
No. Name I/O Description
66 SWDT O Data for writing to CXD2652AR (IC2)
67 SCLK O Serial clock to CXD2652AR (IC2)
- -
H; ON
H; ON
80 - O No used / pull up
H; ON
83 ADRST O Data to SM5844AF (IC25) ADC reset
84~91 AD0~AD7 O SRAM address / data (AD0~AD7)
92~99 A8~A15 O SRAM address (A8~A15)
100 Vss - GND
DIGITAL REC LEVEL
FADE = OFF
FADE TIME = 3sec
68,69,70 N.C.
71 EXDT O Extension port data
72 FLDCE O CE to FL driver IC(LC75710NE)
73 DRDT I Data for reading form DIR.(LC8904Q)
74 DWDT O Data for writing to DIR.(LC8904Q) ,FL driver IC(LC75710NE)
75 DCLK O Clock to DIR.(LC8904Q) ,FL driver IC(LC75710NE)
76 DLAT O Latch to DIR.(LC8904Q)
77 DEMPH I Emphasis form DIR.(LC8904Q)
78 DSUB1 I SUB1 form DIR.(LC8904Q)
79 DSUB2 I SUB2 form DIR.(LC8904Q)
80 SRCLAT O Latch to SRC.(SM5844AF)
82 SRCCK O Clock to SRC.(SM5844AF)
83 SRCDT O Data to SRC.(SM5844AF)
0.0V 0.8V 1.6V 2.4V 3.2V 4.0V
KR0 POWER EJECT PAUSE - FF -
KR1 STOP REC PLAY - FB
TT
SEARCH
KR2
FADE/ EDIT/ TT REC
MONITOR -
DEL SPACE INPUT INPUT
KR3 SET
ENTER/ REC MODE/
- - -
TIME CHR
DMF-9020(K) INT1,1P( 98.11.26 5:24 PM y[W 14
DMF-9020/9020(S)/MD-2070
8
CIRCUIT DESCRIPTION
4. Test mode of the unit
4-1 Setting of the test mode
While pressing the [REC/INPUT] key, plug the AC power
cord into the AC wall outlet.
4-2 Contents of the test mode
Choose the 3 mode by TIMER switch position below.
NONE means none mode.
(1) [ INSPECTION ] mode
•
ENGLISH display (2secs)
• " NIAGARA TEST " display
Dot : Niagara
Segment : All lighting
• Push a key, then cancel " NIAGARA TEST "
Display [ KEY 028 ] into the KEY-TEST mode.
Push a key, then display [ KEY
] .
(2) [ ERROR RATE ] mode
• Function of the key
• Function of the key
5. Microprocessor reset
The microprocessor can be initialized while pressing the
[EJECT] key, plug the AC power cord into the AC wall
outlet.
6. Mechanism test mode
Refer to 1050MD/DM-5090/MD-9090 service manual (B51-
5387-00), if you see this test mode.
TIMER SW Mode
(1) REC INSPECTION
(2) PLAY ERROR RATE
OFF NONE
Key Mode
REC/INPUT KEY-TEST
EDIT NIAGARA TEST
TITLE INPUT None all lighting
Key Function
PLAY CPLAY (MID)
REC CREC (MID)
STOP
STOP CPLAY, CREC
(2time push) ERROR RATE
Pin No. Port Name I/O Description
21 CS (SRAM) O SRAM control. chip select H : POWER DOWN
22 WR – SRAM control. write strobe signal output
23 RD – SRAM control. read strobe signal output
24-28 NC O no use
29-35 A14-8 – SRAM control. address bus
36-42 AD7-1 – SRAM control. address/data bus
43 AD0 – SRAM control. address/data bus L : POWER DOWN
44 ASTB – SRAM control. address strobe signal output
45 VSS – Microprocessor GND
46 TEST – Microprocessor TEST
47,48 NC O no use
49 MENA O Mechanism-microprocessor. enable
50 MRXD – Mechanism-microprocessor. data in line (UART)
51 MTXD O Mechanism-microprocessor. data out line (UART)
52-54 NC O no use
55 VDD – Microprocessor power supply (+)
56-61 NC I no use
62 CTR_JIS I Cyber titler. for JIS code H : JIS
63 TXT_JIS – CD TEXT. for JIS code H : JIS
64 AVDD – A/D power supply
65 AVref1 – A/D reference voltage input port (+5V)
66 AVSS – A/D GND
67,68 NC O no use
69 AVref2 – D/A reference voltage input port (+5V)
70 AVref3 – A/D reference voltage input port (GND)
71,72 NC I no use
73 DQSY – Text data read permit L : interrupt
74-76 NC I no use
77 CLOCK I IBM key board I/F clock line L : interrupt
78 SRDT I Text data read line
79 TRXD I Cyber titler. data in line (UART)
80 TTXD O Cyber titler. data out line (UART)
AD1855
SERIAL DATA
INTERFACE
16-/18-/20-/24-BIT
DIGITAL
DATA INPUT
25
~
27
3
19
~ 5
20 ,
1
9
8 ,
6
2
7
11 , 24
23
18
22
12 , , ,
10
28
14
13
16 17
15
21
SERIAL
MODE
DIGITAL
GND
ANALOG
GND
RD/RST
MUTE DE-EMPHASIS
ANALOG
SUPPLY
ZERO
FLAG
ANALOG
OUTPUTS
384/256
96/48Fs
CLOCK
DIGITAL
SUPPLY
CONTROL DATA
INPUT
CLOCK
IN
X2MCLK
ATTEN/
MUTE
8x
INTERPOLATOR
MULTIBIT SIGMA-
DELTA MODULATOR
OUTPUT
BUFFER
CLOCK
CIRCUIT
VOLTAGE
REFERENCE
SERIAL CONTROL
INTERFACE
OUTPUT
BUFFER
DAC
DAC
MULTIBIT SIGMA-
DELTA MODULATOR
8x
INTERPOLATOR
ATTEN/
MUTE
3. D/A converter : AD1855 (X25 : IC7)
Block diagram (No. of : pin No.)
DMF-9020(K) INT1,1P( 98.11.26 5:24 PM y[W 15
E
B
E
B
EB
EB
E
B
E
B
EB
E
B
E
B
Q5
Q12
D2
D26
D31
Q24
Q23
IC21
Q45
D6
Q6
Q20
D18
D33
IC17
IC16
IC18
IC36
IC38
Q25
IC33
D12
D13
D3
D16
D14
D15
D7
D8
Q8
Q9
D17
Q10
D20
D19
D25
IC39
IC30
Q27
IC32
D23
D22
D36
D32
D37
D38
Q32
C216
R357
R215
R98
R160
R159
R356
R355
R354
R201
C201
R202
R203
R164
R23
R24
R116
R207
C202
C211
R211
R218
C213
R216
R219
C290
C122
R126
R125
R46
R35
R385
R33
R176
R190
R241
C207
R21
R330
R331
R328
R350
R332
R329
R333
R244
R151
R150
R383
R382
R411
R152
R145
C48
C95
R403
R416
C123
C124
C453
R317
C302
C325
C303
R316
R318
C301
C91
C308
R147
R146
R20
C34
C35
R11
R10
R12
C22
C24
C26
C27
C18
R6
R169
R153
R157
R162
R163
R165
R144
R143
R384
R108
R109
R16
R17
R456
R455
R7
R13
R14
R8
W1
C39
R180
R123
C166
C172
C171
R127
R113
R111
R96
R124
R122
C178
C165
C177R106
R19
R388
R386
R97
R387
R394
C212
R186
R189
R185
C315
R301
R297
C175
C176
R188
R187
R308
C230
R227
R223
R226
R225
R224
R228
R229
R231
R233
R232
C214
C405
R234
C220
R119
R405
C209
R239
R236
C226
R319
R209
R15
R120
R287
C306
R349
R302
R298
R313
R368
R325
R366
R300
R369
C311
C309
C312
C310
R365
R364
R363
R321
R345
R361
C228
R286
R344
C322
R246
R247
R375
R220
R293
R294
R372
C318
R360
R359
R358
C400
C210
R212
R214
R310
R376
R338
R299
C321
C319
R235
C317
C224
C222
R238
R195
R114
R121
R117
R409
R118
R142
R141
R292
R451
C451
R240
L2
R289
R305
R306
R303
R377
R378
L1
L4
L3
C183
C184
C223
C219
R245
R324
R278
R277
R22
R452
C452
R32
R408
R158
R161
110
1120
1
10
11
20
1
7
14 8
17
14 8
1
7
8
14
18
16 9
17
8
14
18
16 9
1
7
14
8
10
1
11
20
EB
E
B
EB
E
B
R128
R129
R42 R41
R44
R284
R290
R213
R48
C324
C323
R173
R175
R210
C208
R166
R174
R217
R205
C203
R204
R206
C10
R49
R171
R167
R168
R172
R47
R99
R100
R107
R155
R83
R283
R339
C121
C5
C6
R85
C404
C406
R154
R82
R84
C408
R402
R404
C402
R414
C407
C403
C409
R407
R312
R401
R412
C170
C169
R327
R326
R342
R311
R322
R336
R323
C305
R320
R390
C401
R170
R110
R18
R9
R115
R112
R101
C206
R105
C109
C108
R389
R102
R103
C99
R104
R413
R415
R140
R374
R352
R156
R381
R380
R379
R222
C218
C217
R230
R193
C316
R295
C221
R237
R282
C205
R194
R296
R315
R341
R393
R314
R288
R346
R340
R348
R347
R337
R362
R335
R334
R351
R353
R370
R371
R196
R457
R221
R391
R285
C229
C411
C110
C111
C112
R304
R343
R307
R309
C225
C227
C232R280
R281
R279
R454
C410
80
1
20
21
40
41
60
61
1
11
12
22
2333
34
44
33
34
23
22
12
11
1
44
1
10
11
20
1
8
16
9
1
12
13
24
25
36
37
48
1
8
5
4
8
5
1
4
8
5
1
4
14
85
1
14
28
15
1
7
8
14
1
7
14
8
100
81
31
50
51
80
30
1
1
14
28
15
28
114
15
1
7
14
8
8
14
1
7
1
7
61
1
6
RIN
LIN
ROUT
LOUT
12.0MHz
22.5792MHz
256fs
CE
POWER
12.5MHz
ADDT
C28
SGND
BUSY
SDATA
GND
SGND
BUSY
SDATA
GND
9
29
DRIVE
LOAD
19
1
81
1
1
P1
MICOM
17
1
R191
C142
R43
X1
C94
C129
C148
C241
C128
C146
C134
C136
C130
C135
C139
C144
C133
C137
C127
C126
C138
C132
C143
R192
R45
C3
C23
C42
C41
C21
R27
C20
C2
C191
X2
C105
C104
C93
C92
C47
C304
C125
C31
C307
C4
C17
C25
C16
C15
C19
C30
C13
C140
C180
C164
C160
C156
C152
C151
C155
C158
C29
C32
C33
C36
C38
C40
C37
C162
C181
C163
C159
C153
C149
C150
C154
C157
C167
C168
C182
C101
C215
C231
X3
C103
C1
1
9
I
O
G
E
B
E
B
1
I
G
O
E
B
E
B
E
B
E
B
E
B
E
B
O
I
O
I
B
E
1
4
B
E
EB
E
B
E
B
E
B
B
E
IC15
IC26
IC34
IC31
IC25
Q46
IC13
Q30
Q31
IC14
IC22
IC37
D29
IC29
IC28
IC23
IC27
IC11
IC10
IC8
Q21
Q22
D24
IC24
Q28
IC7
IC2
IC1
WH2
CN2
CN3
Q18
CN4
J5
Q13
A1
J6
IC35
E1
A2
Q44
J3
Q16
Q19
Q17
Q42
E4
CN8
J4
IC5
CN1
D1
D11
Q11
D21
Q7
IC4
D10
J2
J1
CN5
D9
CN14
E3
J7
WH3
X25-6170-00 A/2 (J70-1263-21)
X25 B/2
MICOM
E2
4
POWER SUPPLY
4
D.R.I.V.E
ADC
SRC
DIR
DAC
CLOCK GEN
LPF
CN7
WH1
TX
SYSTEM
CONTROL
PLAY OUT
OPT.COAX.
REC IN
3
COAX.OPT.
2
COAX.
1
DIGITAL
REC IN PLAY OUT
LINE
RX
9
ACEBD
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
DMF-9020(K) INT1,1P( 98.11.26 7:09 PM y[W 18
F GIHJ
2
1
3
5
7
4
6
Refer to the schematic diagram for the value of resistors and capacitors.
PC BOARD (Component side view)
10
DMF-9020(K) INT1,1P( 98.11.26 7:06 PM y[W 17
GND LINE
PLAYBACK
RECORD
CN102
CN105
CN101
3.3V AVR
IC4
IC3
IC2
IC1
: TC7WU04FU
: TC7S08FU
: CXD2652AR
: CXA2523AR
IC5 : TC74ACT540FS
: X24C01AS-2.7
: HM51W4400BTT-7
: L88MS33T
: BH6511FS
: AK4520
IC10
IC11
IC7
IC8
IC6
: FMW1
: DTC114YUA
: DTA144EUA
Q4,5
: 2SJ278
: 2SB798-DL
: 2SA1576A(R,S)
Q8
Q7
Q6
Q1
Q2,3
Q10
Q9
: DTC114EUA
: 2SK1764
D1,2
D101
: F1J6TP
: MA101
CN3
CN2
CN1
SLT SW
M
M
M
MOTOR
MOTOR
MOTOR
WH1
S1
PROTECT
PH1
S2
REC SW
SPINDLE
SLED
LOAD
-CN3
X25-A/5
2/3
2/3
-CN2
X25-A/5
MEASUREMENT IMPOSSIBLE
NON
RECORD
PLAYBACK
STOP
PH1 : T95-0140-05
+B LINE
-B LINE
DIGITAL OUT
DIGITAL IN
DIGITAL
DIGITAL
OUT
IN
(LINE)
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
8
10
9
7
6
5
4
3
2
1
19
14
13
11
12
17
18
16
15
+5V
DISC IN
STTLMT
NC (EMPH)
PROTECT
PHOTO SW
REFLECT
REC SW
MOD
GND
LDON
MNT2(XBUSY)
XINT
SCL
SQSY
DIG-RST
DQSY
MNT1(SHCK)
SENSE
13
15
14
12
11
LOAD-OUT
LOAD-IN
STTLMT
PROTECT
GND
SPDL+
SLED+
REFRECT
SLED-
+5V
DISC IN
NC
PHOTO SW
SPDL-
REC SW
18
19
17
16
15
13
14
12
11
29
27
28
26
22
23
24
25
20
21
HGND
512FS
+5V
+5V
DOUT
H+5V
DIN
3.3V
GND
LOAD-OUT
GND
LOAD-IN
M+5V
LRCK
M+5V
DADT
MGND
BCK
MGND
ADDT
SCTX
SDA
MNT0(FOK)
MNT3(SLOCK)
SWDT
WRPWP
XLATCH
SRDT
SCLK
2
GND
+B
4
5
3
+B
GND
1
C187
100u
+
1
C195
100u
C190
+
6.3
R124
100
6.3
100
R120
W4
W3
W2
1
2
3
10987654321
2
1
1112131415
2
1
3
1
2
4
3
4.7K
R1
R2
180
PHOTO SW
REC SW
SPDL-
SPDL+
NC
+5V
DISC IN
SLED-
SLED+
REFRECT
PROTECT
GND
STTLMT
LOAD OUT
LOAD IN
0.1
C196
+B
B
+5V+5V+5V
M+5V
+5V
+3.3V
+5V
H+5V
H+5V
+5V
+5V
+5V
IC10
(MDM-04) (X29-2580-00) (A/2)
(X29- ) (B/2)
A
B
DMF-9020/9020(S)/MD-2070(K) (1/3)
5V
1.1V
3.3V
5.1V
MONK LN
Y22-7880-11
DMF-9020/9020(S)/MD-2070
CAUTION: For continued safety, replace safety criti-
cal components only with manufacturer's recom-
mended parts (refer to parts list). indicates safety
critical components. For continued protection
against risk of fire, replace only with same type and
rating fuse(s). To reduce the risk of electric shock,
leakage-current or resistance measurements shall
be carried out (exposed parts are acceptably insulat-
ed from the supply circuit) before the appliance is
returned to the customer.
The DC voltage is an actual reading measured with
a high impedance type voltmeter. The measurement
value may vary depending on the measuring instru-
ments used or on the product. Refer to the voltage
during RECORDABLE MD PLAY unless otherwise
specified; The value shown in ( ) is the voltage
measured at the moment of STOP. The voltage fol-
lowed by (REC) refers to the value during MD
RECORDING.
DMF-9020(K) INT1,1P( 98.11.26 7:09 PM y[W 20
P QSRT
2
1
3
5
7
4
6
5.0V
5.1V
3.3V
0V
4.9V
0V
4.9V
3.3V
5.0V
3.3V
5.1V
5.0V
5.0V
0.6V
2.7V
0.6V
5.1V
3.3V
0V
0V
5.1V
3.3V
5.1V
4.5V
3.1V
3.3V
3.3V
5.1V
1.2V
1.7V
0V
0V
5.1V
1.8V
5.1V
0V
5.0V
0V
5.1V
1.0V
5.1V
3.3V
5.1V
3.3V
1.6V
2.5V
1.7V
2.5V
5.1V
0V
5.1V
5.1V
0V
0V
0.5V
0V
3.4V
0V
0V
0V
3.3V
5.1V
5.2V
5.1V
5.1V
5.1V
R332 100K
R330 100K
R331 100K
R329 100K
R328 100K
R327
R326
1.8K
1.8K
R303 100K
R323 2.7K
R322 2.7K
28
27
26
25
24
23
21
20
19
18
17
16
15
14
13
11
10
8
7
6
5
4
3
78
GND
VDD
7
1
2
3
4
5
6
7
8
9
10
16
17
15
14
13
11
12
ENCB
ENCA
KD3
KD1
uGND
KD2
KDO
u+5V
FL GND
-33V
AC
AC
FLDCE
BCLK
DWDT
REM
TM SW
16CHACK-IN
17STTLMT
15
14
13
PB-P
PROTECT
REFRECT
LDON 9
12
11
10
MOD
REC-P
GND
MNT2(X BUSY) 8
SCL
XINT 7
6
DIG-RST 4
SQSY 5
DQSY 3
SENSE
MNT1(SHCK) 2
1
19+5V
18DISC-IN
1
2
3
SCLK
SRDT
XLATCH
6
4
5SWDT
WRPWP
MNT3(SLOCK)
9
10
7
8SDA
MNTO(FOK)
SCTX
ADDT
BCK 12
M GND 11
M GND 13
M+5V 17
M+5V 15
DADT 14
LRCK 16
LOAD-IN 18
GND 19
23D IN
20
21GND
LOAD-OUT
223.3V
24H+5V
26+5V
25D OUT
28512fs
27+5V
29H GND
5
3
1
7
3
10
4
7
9
8
6
5
3
2
1
11
17
14
12
13
15
16
18
19
20
4
GND
7
5
6
8
10
9
VCC
3
2
12
11
13
114
R304
100K
20
100K
R305
100K
R306
35
R308
100K
GND
7
6
8
5
4
2
3
1
11
10
9
13
12
14
VCC
13
7
GND
6
5
4
3
2
8
9
10
12
11
1
14
VCC
C325 0.01
0.01
C301
1
3
5
31
36
65
12
8
13
13
45
48
47
50
21
32
5
3
1
1
3
5
33
16
18
19
28
27
24
23
25
26
R312
1.8K
R311
2.7K
4
7
VREF
IN1
9
OUT1
8
GND
VS
6
NC
5
OUT2
3
IN2
VCC
2
1
47u10
C304
+
1000P
C303
33K
R318
12K
R316
0.1
C305
57
44
2
1
72
7
6
54
56
55
53
3
7
100K
R375
R317
8.2K
100
R247
100
R246
R334 100K
R335 100K
63
60
13
11
9
9
11
13
17
66
67
R302
47K
10
100K
R310
34
0.01
C302
100K
R309
1K
R389
R390
330
R388
1K
1234
GND
KD3
ENCA
ENCB
5
100
R321
R372 100K
+3.3V +3.3V
+3.3V
33V
33V33V33V
33V33V
33V
33V
Q30,31
+5V
+5V
+5V+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
CN8
SRAM
SEL.
Q30
Q31
CN4
CN3
CN2
D29
3 STAGE BUFFER
L-MOTOR
MOTOR DRIVE
CONTROL
Q25
Q27
DIGITAL
OUT
MBL-3
MECHA.
1/3
1/3
MBL-3
MECHA.
F
H
CN5
OUT
DIGITAL
MECHA CONTROL
BUFFER (3.3V 5.0V)
MECHA CONTROL
BUFFER (3.3V 5.0V)
5.0V3.3V
G
IC39
IC38
IC37
IC36
IC35
(X25-617X-XX) (A/2)
B
A
ELECTRIC UNIT
DMF-9020(K) INT1,1P( 98.11.26 7:09 PM y[W 19
U W Y AA ACV X Z AB AD
5.1V
0.2V
0.2V
0.2V
0V
5.0V
5.1V
0V
5.2V
5.0V
2.5V
2.1V
2.5V
2.5V
2.4V
2.3V
0V
2.4V
5.1V
0V
5.1V
5.1V
0V
5.1V
5.1V
5.1V
0V
5.1V
0V
0V
0V
0.2V
0.2V
0V
0V
0V
5.2V
5.1V
5.1V
5.1V
2.4V
0.2V
5.0V
5.0V
5.0V
5.1V
5.0V
0V
0V
0V
0V
5.1V
0V
5.1V
0V
5.0V
4.9V
5.0V
5.1V
5.1V
4.6V
4.8V
0V
5.1V
5.1V
5.0V
0V
0V
5.1V
0V
5.1V
5.1V
5.0V
5.0V
0V
5.0V
5.0V
5.0V
2.2V
5.0V
5.0V
0V
5.0V
2.4V
0V
5.1V
2.5V
0V
0V
5.2V
0V
5.1V
5.0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0.2V
0.2V
0.2V
0.2V
0.2V
5.1V
0V
5.1V
5.1V
5.1V
5.1V
5.1V
5.1V
0.2V
0.2V
0V
0V
0.2V
0.2V
5.1V
0.2V
0.2V
0V
5.1V
0.2V
0.2V
0V
0V
0V
5.1V
0V
0V
5.1V
2.8V
5.1V
5.1V
5.0V
0V
0V
0V
0V
5.1V
5.1V
5.1V
0V
0V
0V
0V
0V
0V
0V
5.1V
5.1V
5.1V
5.1V
0V
0V
0V
5.1V
0.2V
4.7V
4.7V
0V
5.1V
5.0V
0V
5.1V
0V
0V
5.0V
5.1V
5.0V
0V
0V
5.1V
5.1V
2.8V
2.4V
4.8V
5.1V
5.1V
5.1V
5.1V
5.1V
5.1V
5.1V
5.1V
1.5V
0V
2.8V
5.1V
5.1V
0V
0V
0V
5.1V
5.1V
0V
5.1V
0V
5.1V
5.0V
0V
5.0V
0V
0V
5.0V
5.0V
0V
0.2V
0V
0V
0.4V
0.4V
0.2V
0V
5.1V
5.1V
0V
5.0V
0V
5.0V
0V
0V
5.0V
5.0V
0.5V
5.0V
0V
0.5V
0.4V
0V
0.2V
0.6V
0.4V
0.5V
0.2V
0V
4.6V
5.1V
5.1V
4.8V
4.9V
5.0V
5.1V
5.1V
4.4V
0V
5.1V
0.3V
4.8V
0.5V
0V
0V
0.3V
4.6V
0V
0.3V
4.9V
4.8V
0.4V
0.4V
4.8V
0V
0V
0V
0V
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
GND
A15
A14
A13
A12
A11
A10
A9
A8
D7
D6
D5
D4
D3
D2
D1
D0
VLDT
VLCK
BACK CHK
MNTO
MNT2
XRST
TX
RECP(WRDWP)
MNT3
VDD
X IN
X OUT
GND
GND
RESET
REM
XINT
CE
SQSY
DQSY
DDQSY
MNT1
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
28
29
30
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
EXLAT
RD
WR
CS
STB
VDD
POWER
MUTE
INI SW2
SCHNG
S BUSY
S DATA
SCL
SDA
LDON
RMS
XLAT
SENS
GND
PROTECT
PEFRECT
DISC IN
STTLMT
PHOT SW
REC SW(REC-P)
LOAD IN
LOAD OUT
SRCLAT
DSUB2
DSUB1
DEMPH
DLAT
DCLK
DWDT
DRDT
FLDCE
EXDT
CENA
CTXD
CRXD
SCLK
SWDT
SRDT
+5V
ENCA
BACK ON
GND
ENCB
BACK V
INI SW
TM SW
KR3
KR2
KR1
KR0
+5V
VDD
X3
12.5MHz
R336 2.7K
R307 100K
R340 100K
R339 100K
R343 100K
31
32
34
33
35
36
R342
1.8K
38
R345 100K
R346 100K
R348 100K
R347 100K
44
45
46
47
48
50
42
C322
0.01R344
1K
0.1
C323
R333 100K
53
R349 10K
R382
R350 10K
R351 10K
R353 10K
R383 100
R385 100
R384 100
54
56
55
57
C324
0.1
R370 47K
R371 110K
R354 100K
1K
R355
1K
R356
60
63
R379 100
R380 100
R381 100
65
66
67
70
69
68
74
73
77
78
76
75
80
72
1
2
3
2
1
2
83
82
96
97
98
94
95
93
91
92
90
88
89
86
87
85
84
123456
X IN
RST
VPP
SCK
SO
SI
75
74
73
1
2
3
43
38
13
14
VSS D3
D2 D4
10
11
12
D0
D1
D6
D5
A0 D7
4
7
A10A2
A1
9
CS
A3
8
OE
A9A5
A4
6
A11
A6
5
A8
A7
3
A13
A14
A12
2
VCC
WR
1
15
16
17
19
18
25
22
20
21
23
24
26
27
28
98
97
96
95
94
93
92
8
9
10
88
86
90
84
85
87
89
91
100K
R320
21
23
24
25
26
D1 D6
3
4
2
QO Q7
1
OE VCC
D0 D7
D3 D4
7
8
5
6
Q2 Q5
Q1 Q6
D2 D5
9
10
GND LE
Q3 Q4
20
19
18
17
16
15
14
13
11
12
25
9184
8885
88
824
923
8687
8687
9089
9089
1021
84
85
100K
R319
6
5
8
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
D3
D4
D5
D6
D7
A8
A9
A10
A11
A12
A13
A14
A15
RD
WR
CS
VDD
AVREF1
GND
AVREF2
AVREF3
DOSY
SRDT
RXD
TXD
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
D2
D1
D0
STB
GND
CENA
CTXD
CRXD
VDD
VSS
X1
X2
VDD
RESET
X MODE
SCLK
0.01
C312
0.1
C321
R300 100K
R364 100K
R341 100K
R298
1M
R315 100K
R313 100K
R314 100K
R324 100K
R338 100K
R325 100K
78
73
R299
R369 100K
R368 100K
R365 100K
R363 100K
R366 100K
C310 0.01
C311 0.01
70
69
68
21
22
23
29
31
30
32
34
33
35
20
VCC OE
14
17
D0D7
Q7
19
Q0
D6
18
D1
Q2Q5
Q6
16
Q1
D5
15
D2
D4
13
D3
E4
Q4
12
GND
Q3
11
1
7
4
2
3
5
6
8
9
10
A0
A11
23
22
21
20
19
D7
A10
CS
OE
28
27
26
25
24
WE
A8
A9
A13
VCC
A4
10
A2
A1
9
8
A3
7
6
A12
A6
A5
5
4
A7
3
2
A14
1
14
VSS
D1
12
13
D2
11
D0
D3
15
16
17
18
D5
D4
D6
35
34
33
32
30
31
21
23
22
100K
R361
100K
R362
29
38
37
36
36
37
38
49
71
62
4
7
QS
GND
AD RST
8
Q'S
FLD RST
SEL2
DIN
DIG RST
6
EMPHA
DINSEL1
5
DRIVE
CLK
3
DA RST
STE
S IN
2
VCC
OE
1
13
10
9
11
12
14
15
16
3
0.01
C207
71
4
R376 100K
R377 100K
R378 100K
10
1K
R337
C223
0.1
1K
23
2
1K
R297
R352 1.8K
47K
R374
100K
100K
73
21
22
20
78
1
100K
R288
1
L3
L4
4
7
3YGND
2Y
8
3B
4Y2A
2B
6
3A
1Y
5
4B
1B
3
4A
SEL
1A
2
VCC
ST
1
13
10
9
11
12
14
15
16
29
34
4
6
1
100P
C315
47K
R301
C316 0.01
C309 0.01
C306 0.01
47u10
C307
+
C308 1000P
SRAM
24
9
R295
R387
1K
R394
100
R391 100K
R393 100K
R386
1K
R357
100K
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
34
35
36
37
38
39
40
41
42
43
44
23
24
25
26
27
28
29
30
31
32
33
RND1
RND0
NT
DRON1
DRON0
VDD
NCON0
NCON1
NCON2
NCON3
VSS
IW1
IW0
IUD
IIS
IBF
VSS
RST
LRCK
DATA
BCK
MUTE
ICTH
VDD
CK
XO
VSS
VDD
MCK0
MCK1
MMOD0
MMOD1
OBF
OIS
OLRRL
OUD
FILN
VSS
LRCKO
DATAO
BCKO
DRVW
THRMN
VSS
10
R283
0.01
C221
K-CLK
K-DATA
MCKBCK
DATA LRCK
R287
1K
R209
0.01
C222
R236
330
R235
330
C229
1000P
R285
100K
R296
R457
R454
R456
100
14
77
5
43
79
1
47K
100
R455
X2 12.0MHz
10
R279
220
R284
330
R241
10
R290
33V33V33V
14
1
2
3
13
12
11
10
9
8
CIRCUIT
DUAL PORT RAM
32WORD x 8BIT
SIGNAL
PROTECTION
CHECKER
CRC
4
CPU
INTERFACE
&
SYNCHRONI-
ZATION
TIMING
6
5
7
R289
100K
47K
GND
TEST
VDD
100
91
26
MD-2070
DMF-9020
DMF-7020
DMF-7003
2.0 [V]
1.0-
L
H
+5V
+5V
+5V +5V
+5V
+5V
+5V+5V+5V
+5V
+5V
+5V
+5V+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+B
+B
+B
+B
+5V +5V
+B
+5V
+B
+B
+5V
+B
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B +B
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
Q24
Q23
8BIT MEMORY
LATCH
u-COM
SUB
LATCH
MEMORY
8BIT
SRAM
SER PARA
D33
D24
Q22
Q21
CD TEXT
D25
SEL.
DIGITAL
u-COM
MAIN
SRAM
Q28
D.R.I.V.E
24BIT
A
MECHA
IC31
IC34
IC33
IC28
IC30
IC29
IC32
IC26
IC24
IC27
CAUTION: For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list). indicates safety critical components. For continued
protection against risk of fire, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out
(exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input.
The measurement value may vary depending on the measuring instruments used or on the product.
DMF-9020(K) INT 2P( 98.11.26 5:38 PM y[W 6
4.8V 4.8V
4.8V
4.8V
5.8V
-32.6V
-32.0V
4.9V
5.1V
0V
5.1V
0V
2.2V
0V
5.1V
5.1V
0V
2.6V
0V
0V
0V
0V
2.6V
2.5V
2.5V
11.4V
11.4V
7.6V
8.3V
8.3V
0V
-11.5V
-11.5V
-8.8V
-8.1V
-0.6V
0V
5.1V
0.6V
6.4V
5.1V
5.1V
4.4V
0.6V
0V
0.6V
9.0V
5.2V
8.4V
5.7V 2.5V
0V
-35.8V
STNDBY: -38.4V
REC: -36.7V
5.2V
4.8V
2.4V
2.3V
2.5V
0V
0V
2.5V
2.6V
2.4V
4.8V
4.8V
4.8V
5.1V
0V
5.1V
4.8V
5.1V
5.1V
5.1V
5.1V
2.5V
2.5V
0V
2.5V
5.2V
5.1V
0V
5.1V
2.2V
2.4V
5.1V
0V
2.5V
0V
2.6V
5.1V
2.6V
5.1V
5.1V
5.1V
5.1V
4.9V
4.9V
1.9V
4.9V
2.5V
2.4V
4.9V
2.5V
2.4V4.9V
2.3V
2.3V
4.9V
2.6V
4.9V
2.4V
4.9V
2.1V
22
21
20
19
18
17
16
15
14
13
12
34
35
36
37
38
39
40
41
42
43
44
OW18N
OW18N
MLEN
MLEN
MCK
MDT
MCOM
DMUTE
DMUTE
VDD
VDD
SLAVE
SLAVE
THRUN
THRUN
OCKSL
OCLK
LRCO
BCKO
BCKO
DOUT
DOUT
23
24
25
26
27
28
29
30
31
32
33
11
10
9
8
7
6
5
4
3
2
1
OW20N
OW20N
IISN
IISN
STATE
TST1N
TST2N
RSTN
RSTN
VSS
VSS
IFM2
IFM2
IFM1
IFM1
ICKSL
ICLK
LRCI
BCKI
BCKI
DI
DI
12
11
10
9
8
7
6
5
4
3
2
1
25
26
27
28
29
30
31
32
33
34
35
36
DVDD
XMODE
TEST2
TEST1
CLK
CLKMD
DGND
CCB/SUB
RC2
RC1
ENPHA
DOUT/V
DVDD
XIN
XOUT
CLKOUT1
CLKOUT2
ERROR
DGND
SUB1
SUB2
BCLK
DATA
OUT
LRCK
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
NC
AVDD
R
AGND
VIN
VCO
DVDD
SBSY
PW
SFSY
SBCK
DGND
DGND
DIN4
DIN3
DIN2
DIN1
DVDD
CL/SCLK
CE/XLAT
DI/SWDT
DO
SRDT
LD/DOSY
470
83
23
22
21
20
R231
24K
R232 5.6K
R233 5.6K
C220
0.01
R234
150
0.1
C219
C217
0.01
R222
33K
C218
1000P
36
34
79
78
C121
1000P
100K
R230
49
3
2
76
1
77
82
80
C228
1000P
4
5
C230
0.01
R286 1K
R223 100K
R224 100K
R226 100K
R225 100K
R227 100K
29
R229 100K
R228 100K
100K
R221
36
C4 0.01
1/4W
R27 1
10
1K
R14
100P
C24
100
R12
C21 4700u16
+
C20 4700u16
+
0.01
C17
C25 100u10
+
C23 22u16
+
C22 0.01
470u10
C28
+
R13 100K
4.7K
R8
R6 1.8K
C16 0.01
C15 0.01
0.01
C18
GND
IN OUT
0.01
C26
680
R10
680
R11
47u16
C19
+
0.01
C27
R7
1u50
C29
+
10K
R9
100K
R15
750
1K
R16
100u10
C33
+
1F5.5
C32
+
0.01
C31
100
R17
1u50
C30
+
47K
R18
46
42
C34 0.01
R33 4.7K
1.5K
R21
GND
IN OUT
1.62K
R20
3300u16
C41
+
0.01
C36
100u50
C37
+
100P
C39
10u50
C38
+
10u50
C40
+
10u50
C42
+
1K
R19
100P
C35
R22 2.2K
R103 47K
R102 47K
100K
R125
47K
R126
C101 100u10
+
987654321
AUDIO
GND
AUDIO
SYSTEM
FL-AC
SYSTEM
GND
-VFL
FL-AC
C13 220u16
+
62
C122
1000P
RXD
TXD
CYBER TITLER
2
1
L1
L2
100K
R292
330
R359
14
100K
R360
R358 100K
330
R293
15
R294 100K
R189 330
5
0.01
C317
INPUTS
ST
SELECT
H
L
L
L
L
X X X
BA
L X L
L
Y(157A)
OUTPUTS
L
L
H
H X
X
H X
L
H H
L
H
X : Don,t Care
C225
100P
R245
2.2K
R96 470
R190 47
R98
10
R187
330
R188
330
12
8
10
R278
10
R282
6
330
R237
16
15
14
13
12
11
10
9
VCC
1CLK
2CLK
2CK
2K
2J
2PR
2Q
1
2
3
4
5
6
7
8
1CK
1K
1J
1PR
1Q
1Q
2Q
GND
330
R409
R185 47
1K
R407
6
R186 47
10
9
8
4
5
12
13
11
14
7
1M
R401
1K
R402
68P
C410
13
470
R404
22.5792MHz
X1
1000P
C408
1000P
C404
15P
C403
1M
R403
1M
R411
10P
C402
10
R415
1
R412
1
C409
0.01
C401
1K
R416
1
2
3
4321
C318 220P
C319 220P
GND
SGND
BUSY
DATA
BUSY
DATA
SGND
GND
220P
C183
C184
220P
4 123
77
14
220P
C451
R451 220
220P
C452
R452 220
C453
1
P2
2000u16
C2
+
2200u16
C1
+
47u16
C3
+
1K
R43
220
R44
1 1/4W
R45
1K
R46
2.2K
R49
100P
C10
10K
R47
9.1K
R48
1
C6
1
C5
10K
R35
R32 4.7K
1
R24
6
7
R238 470
R239 330
R280
150P
C232
C224 0.01
10
R281
R23 4.7
2.2K
R244
11
0.01
C405
2.2
R97
100u10
C103
+
+7.6V +7.6V
+7.6V
+7.6V
8V
8V
8V
8V 8V
33V33V
33V 33V 33V 33V
33V33V33V33V
Q44
IC1,2
+5V
CK
DATA
R413
220
C411
33P
+B
+B
+5V
+B +B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B
+B +B
+B
+5V
+5V
+5V
+5V
+5V
+B
+5V+5V
+5V +5V +5V +5V
+5V
BB
+5V
+5V
+B
+5V
+B
+5V
+B+B
+B
B
+5V
+5V
+5V
+5V
+5V
+5V
+B
+B
+B
+B
+B +B
+B
+B
+B
+B
+B
+5V
+B
+5V
+B +B
+B
+B
+B
+B
+B
B
+B
+B+B +B
+5V
+5V
+5V
+5V
+B +B
+B +B
+5V
+5V
+5V
+B
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+B
SAMPLING
RATE
CONVERTER
DIR/AC-3
D1
D31
D32
Q6
SW
POWER ON/STANDBY
D11
D13 D12
D16
D17
D10
D9
D7
D15
D14
D8
Q7
Q10
RESET IC
+5V AVR
Q8
Q9
D3 D18
D20
D21
D19
Q11
Q12
Q13
AD
CONVERTER
CN1
J2
E2
D26
D22
D23
-31V AVR
+5V AVR
I
J6
IC15
(2/4)
IC15
(3/4)
IC15
(4/4)
IC15 (1/4)
E4
SYSTEM
CONTROL
J5
P1
WH2
CN14
E3
D36 D37
D38
WH3
J7
D6
Q42
Q45
Q46
Q44
Q5
D2
IN
DIGITAL
+8V AVR
-8V AVR
IC PROTECTION
+5V AVR
MASTER CLOCK
B
C
D
E
J
IC22 (4/6)
IC22(5/6)
BACKUP
CON.
KEYBOARD
IC25
IC23
IC1
IC4
IC5
IC16
IC2
AE AF AH AJ AL ANAG AI AK AM
DMF-9020(K) INT 2P( 98.11.26 5:38 PM y[W 5
BI BK BM BO BQBJ BL BN BP BR
P24
P23
P19
P17
P13
P16
P22
P25
P15
P18
P6
P10
P11
P8
P3 P4 P5
P3
P18
P32
P4
P19 P20 P21
P6P5
P22
P7
P23
P8 P9
P24 P25
P10 P16
P31P30
P15P14
P29P28
P13P12
P27P26
P11
P20
P21
P17
P2
P33
P1
P14
P12
P9
P1 P2
P7
P31 P32 P33 P34
P27P26 P29P28
P35
P30
P19P18P17P16
P21 P22 P23 P24
P11 P12 P13 P14
P20
P25
P15
P7P6 P9P8
P1 P2 P3 P4
P10
P5
ON:2.1V OFF:-7.7V
-11.6V
10.9V
-29.7V
-29.0V
-32.3V
-30.2V
-29.8V
-30.2V
-15.7V
-29.8V
-29.6V
-15.0V
-29.6V
-29.6V
-29.6V
-29.6V
-29.6V
-29.6V
-29.6V
-29.6V
-17.2V
-31.4V
-29.0V
-17.0V
-15.0V
-19.5V
-31.5V
-19.5V
-26.7V
-26.7V
-31.5V
-19.5V
-19.5V
-29.0V
-26.7V
-19.3V
-19.3V
-19.3V
4.9V
-29.1V
-14.9V
-31.5V
-19.8V
-17.3V
-17.3V
-26.7V
-31.5V
-19.7V
-19.7V
-29.2V
-26.7V
-31.5V
-19.7V
-31.5V
-17.4V
4.9V
2.5V
2.5V
-29.6V
4.9V
-29.6V
-29.6V
-29.6V
-29.6V
-29.6V
4.9V
4.9V
4.9V
4.9V
4.9V
-29.8V
ED1
15G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G 13G
14G
11G 12G
(1G-12G)
FL DRIVER
Q1
Q2
Q3
Q4
Q5
D2
E1
S25
FADE
TITLE
SEARCH
INPUT
TITLE
INPUT
REC
EDIT
MONITOR
E2
S5
WH2
S13
S14
S15
S16
S17
S12
ENTER
S20
REC
S21
S3
JOG DIAL
PUSH SET
MODE
S11
S10
S9
S8
S7
S6
WH3
HEADPHONE
J1
Q8
Q7
D5
D4
WH1
E
A1 : W02-2571-05
ED1 : FIP12XM1GA or CM1777M
D4,5 : 1SS133 or HSS104
D2 : RD7.5JS(B) or HZS7.5S(B)
Q7,8 : 2SD1450(S,T)
Q1-5 : 2SC3311A(Q,R) or
IC2 : NJM4556AD
IC1 : LC75710NED
(1/2)
IC2
(2/2)
IC2
MUTE
AMP
BUFFER
BUFFER
REC LEVEL BALANCE
(BOTTOM VIEW)
J
WH3
2SC2458(Y,GR)
POWER
MAIN
S1
CN1
A1
LEVEL
REMOTE
SENSOR
DMF-7020 (X00-2840-01)
DM-2070 (X00-2840-11)
DMF-9020(S) (X00-2840-51)
DMF-9020 (X00-2840-51)
E1
2
41
4
2
3
12
7
P1
NP
NP
F
F
4
3
6
5
P6
P5
P4
P3
P2
9
8
11
10
P11
P10
P9
P8
P7
14
13
16
15
P13
P12
P16
P15
P14
19
18
17
21
20
14
9
5
6
7
8
10
11
13
12
19
15
16
17
18
20
21
22
23
P26
P21
P20
P19
P18
P17
24
23
22
26
25
P25
P24
P23
P22
29
28
27
31
30
P31
P30
P29
P28
P27
33
32
26
35
34
P35
P34
P33
P32
38
37
40
39
24
25
26
27
28
31
29
30
33
32
44
43
34
35
45
49
47
46
48
51
46
NP
NP
NP
NP
NP
43
42
45
44
NP
NP
NP
NP
NP
48
47
50
49
11G
12G
13G
14G
15G
53
52
55
54
6G
7G
8G
9G
10G
58
57
56
60
59
54
52
51
50
53
F
1G
2G
3G
4G
5G
63
62
61
65
64
F
F
NP
NP
68
67
66
70
69
L1 L2 L4L3 L6L5 L8 L9 L10 L11 L12 L13 L14L7
1
F
R1 R2 R4R3 R6R5 R7 R8 R9 R10 R11 R12 R13 R14
R15
L15
1
AM
2
AM
4
AMAM
3
AM
5
AM
6
AM
7
AM
8 9
AM
10
AM
AMAM
11
AM
12 13
AM
14
AM
15
2019181716
AMAM AM AM AM
AMAM
31
AM
32 33
AM
34
AM
35
3029282726
AMAM AM AM AM
AMAM
21
AM
22 23
AM
24
AM
25
G7
AM1
1
48
17
AM17
DI
64
2
AM2 G8
47
3
AM3 G9
46
4
AM4 G10
45
5
AM5 G11
44
6
AM6 AA8/G12
43
7
AM7 AA7/G13
42
8
AM8 AA6/G14
41
9
AM9 AA5/G15
40
10
AM10 AA4/G16
39
11
AM11 AA3
38
12
AM12 AA2
37
13
AM13 AA1
36
14
AM14 AM35
35
15
AM15 AM34
34
16
AM16 AM33
33
63
CL
AM18
18
62
CE
AM19
19
61
RST
AM20
20
60
VDD
AM21
21
59
OSC1
AM22
22
58
OSC0
AM23
23
57
VSS
AM24
24
56
TEST
AM25
25
55
VFL
AM26
26
54
G1
AM27
27
53
G2
AM28
28
52
G3
AM29
29
51
G4
AM30
30
50
G5
AM31
31
49
G6
AM32
32
1K
R47
17
2
54
48
3
4
5
6
7
8
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
53
52
51
50
49
47
46
45
44
43
35
34
R28
10K
C6
100P
14
15
16
17
1
2
11
12
1K
R32
R33
1K
R34 1K
R38
1K
1000P
C10
1000P
C11
R35
22K 100K
R36
1000P
22K
R37
C12
220P
100K
R39
C16
64
63
62 64
62
63
40
41
42
10K
R27
C5
0.01
R24
10K
R25 10K
R26 10K
1
C15
0.01
R30 100
R29 100
R40
47K
R41
10u35
C13
+
0.01
C7
+
C8
10u6.3
10K
R31
0.01
C9
40
33
41
42
7654321
1
2
3
4
5
6
Hi : REC
Md : PLAY
Lo : OFF
TIMER SW
10K
R3
R1
10K
0.01
GND
VCC
DATA
47u6.3
+
C4
100
C3
R4
C14
1000P
12
2
R14R15
1.8K2.7K4.7K
R16R17
8.2K
22K
R13
1
2
3
4
5
6
1
17
16
15
14
11
R7
1.8K
1 32 54 76
R20
2.7K 1.8K
R19
12K
R12
2.7K
R11 R10
1.8K
R65
100
100
R66
R9
12K 2.7K
R8
C27 470P
C28 470P
P1
3
2
8
1
+
5
6
4
+
7
L2
L1
2
3
1
5
4
6
7
-12V
R43 1K
R44 1K
R63 1K
R64
1K
VR1
50K
C33
2.2u2.2u
C34
1K
R46
C21
0.01
C22
100P
VR2
50K
C23
22u16
+
C24
22u16
+
R49R50
C19 100PC20 100P
C29
1000P
C30
1000P
56
R51 R53
1
R57
1K
1K
R58
56
R52 R54
1
R55
100K
R56
100K
1
R62
1
R61
R59
5.6K5.6K
R60
R45
R48
2.7K
5050
100K 100K
+12V
MUTE
ROUT
GND
LOUT
LOUT
U+5VU+5V
U+5V
U+5V
U+5V
U+5V
U+5V U+5V U+5V
U+5V
U+5V
U+5VU+5V
+12V
+12V
+12V
Q7.8
Q1-5
R2
470
AC5.9V
AC29V
AC29V
AC10V
AC5.9V
AC10V
AC18.5V
GND
AC18.5V
(GRY)
L1
WH2
(WHT)
C1
6800P
C3
6800P
6800P
C2
1
WH1
2
3
2
1
U+5V
220P
C17
2.7K
C35
0.1
P2
WH5
E3
1
(BRW)
WH5
(RED)
WH4
UNIT No.
0-01
DESTINATION
COUNTRY
JAPAN
ABB.
J2 NO 1.25A 125V
F1
WH1,2
YES
WH4,5
L07-2362-05
TRANSFORMER
WH1,2
YES
U.S.A.
0-11
K1
DESTINATION
COUNTRY
UNIT No.
ABB.
1.25A 125VNO L07-2412-05
WH4,5
F1 TRANSFORMER
CANADA P1
ABB.COUNTRY
YES
EUROPE
U.K.
0-51
E2
T2
T800mA L250VNO L07-2270-05
WH1,2
DESTINATION
UNIT No.
WH4,5
F1 TRANSFORMER
T800mA L250V
EUROPE
U.K.
COUNTRY
DESTINATION
WH4,5WH1,2
YES0-51
E1
UNIT No.
T1
ABB.
NO
F1 TRANSFORMER
L07-2270-05
12V 12V
33V
33V
33V
33V
33V
33V
33V 33V
1K
(K,P)
(J)
(T,E)
: AC120V 60Hz
: AC100V~ 50/60Hz
: AC230V~ 50Hz
5
9
7
8
6
CN5
3
4
2
1
-VFL
-VFL
SYSTEM
SHIELD
F1
CN3
SYSTEM
AUDIO
AUDIO
AUDIO
AC
AC
TRANSFORMER
(X14-4380-00) (B/5) : DMF-7020(J2)/MD-2070(K1,P1)/DMF-9020(T1,E1)/DMF-9020(S) (T2,E2)
IC1
(X14- ) (C/5) (X14- ) (A/5)
(X14- ) (D/5)
DMF-7020/7003/7003G(J) (3/3)
DISPLAY UNIT
(X00-2840-XX) (B/2)
(X00- ) (A/2)
MD-2070(K,P) (3/3)
DMF-9020/9020(S) (T,E) (3/3)
PGM
(-dB)
R
REPEAT FADE
TOTAL
REMAIN
30
SEARCH
TITLE
L
40 9
MANUAL
MONO
1821 15
IN
A.PAUSE
MONITOR
32kHz
44.1kHz
48kHz
1 2 3
ANALOG DIGITAL
7 5 3 1 0 OVER12
40 30 27 OVER1224 21 18 15 9 6 3 0
(-dB)
OUT
COPY
SINGLE
B
+B
GND LINE
SIGNAL LINE
RECORDING LINE
B LINE
B LINE
Y22-7880-11
DMF-9020/9020(S)/MD-2070
AD1855 TC74HC373AF
TC74VHC244F
BH6511FS LM431AIZ
TC74AC112F
TC74HC157AF
CXD2652AR
ICP-N10 TC74ACT540FS
TC7WU04FU
1
4
5
8
L88MS33T
1
5
1
7
8
14
HD74HCT126FPEL
The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measurement value may vary
depending on the measuring instruments used or on the product.
DMF-9020(K) INT 2P( 98.11.26 5:38 PM y[W 7
DMF-9020/9020(S)/MD-2070
Parts with exploded view numbers larger than 700 are not supplied.
MDM-04
S 2
S 1
X33-1100-00
X29
(B/2)
AH
AH
AH
AH
AH
ADx2
AF
AD
AE
AG
AD
AF
AC
AE
AE
AD
AD
AF
AF
AF
AFx2
AA
AA
AA
AA
AH
AH
AH
X29-2580-00
(A/2)
AA
AB
AC
AD
ø2.6x10
M1.7x2
M1.7x3
ø2x6
: N09-2817-05
: N09-3104-05
: N09-3279-05
: N09-4145-05
19
3
30
17
39
9
20
28
6
31
33
25
38
18
32
2
37
7
24
1
4
34
21
48
10
47
5
27
26
15
16
22
36
35
12
23
41
48
LM
DM
FM
PU
29
29
40
29
29
13
11
RH
8
849
42
B
A
27
26
18
AE
AF
AG
AH
M1.7x4.5
ø2x4
ø2x8
ø2.6x6(BLK)
: N39-1745-46
: N82-2004-46
: N89-2008-46
: N89-2606-45
When assembling
a mechanism, adjust
"slit A and slit B "
of "the main slider
(Ref. No.18) and
the main gear
(Ref. No.27)"
The figure which
was seen from
below
Slit
1
2
3
A B
27
EXPLODED VIEW (MECHANISM)
DMF-9020(K) INT1,1P( 98.11.26 7:09 PM y[W 21
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Kenwood DMF-9020 User manual

Kenwood
Brand
Kenwood
Model
DMF-9020
Type
User manual
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