Sony SLV-ME100MI, SLV-ME100ML, SLV-K990, SLV-ED100ME, SLV-EZ2000S Service Manual
...
SLV-ED100/EZ2000/K990/KH9
RMT-V282/V282A/V284/V284A
SERVICE MANUAL
Photo: SLV-K990
Australian Model
SLV-EZ2000S
E Model
SLV-ED100ML/K990PS/KH9PS
Hong K ong Model
SLV-ED100MI
Irish Model
SLV-ED100MI
ME Model
SLV-ED100ME/ED100MI/KH9ME
New Zealand Model
SLV-EZ2000Y
South Africa Model
SLV-ED100MI
Tourist Model
SLV-ED100ME
UK Model
SLV-ED100MI
• Refer to the SERVICE MANUAL of VHS MECHANICAL
ADJUSTMENTS VI for MECHANICAL ADJUSTMENTS.
(9-921-647-11)
* The abbreviations of ED100, EZ2000, K990, KH9 contained
in this service manual are indicated when these models are
common to all their corresponding models as given below.
Abbreviated
model name
All model
names
SLV-
ED100
ED100ME
ED100MI
ED100ML
EZ2000 K990
EZ2000S
EZ2000Y
K990PS
KH9
KH9PS
KH9ME
SR MECHANISM
G
MICROFILM
VIDEO CASSETTE RECORDER
SPECIFICATIONS
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder
splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them
out to the customer and recommend their replacement.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED
LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
4. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and recommend their replacement.
5. Check the B+ voltage to see it is at the values specified.
– 2 –
• Feature Difference
Feature
TUNER
MODULATOR SYSTEM “G, K, I, M” “G, K, I, M” G G “G, K, I” “G, K”
RF MOD UHF 21-69 UHF 21-69 UHF AS28-69 UHF 21-69 UHF 21-69 UHF 30-39
TELETEXT ××aa××
LINE2 IN/OUT a/× a/× a/× a/× a/aa/a
LINE3 IN aaa×××
SKY TV DEC ×××a ××
MIC JACK 1 1 1 1 2 2
(COLOR) (GOLD) (GOLD) (GOLD) (GOLD) (SILVER) (SILVER)
POWER REQUIREMENTS 110-240V AC 110-240V AC 220-240V AC 220-240V AC 110-240V AC 110-240V AC
BACK UP TIME 24h 8h 8h 8h 8h 8h
COLOR SILVER SILVER AUDIO BLACK AUDIO BLACK SILVER SILVER
KARAOKE ××××aa
REMOTE COMMANDER RMT-V284A RMT-V284A RMT-V284 RMT-V284 RMT-V282 RMT-V282A
SLV- ED100ME ME100MI/ML EZ2000S EZ2000Y K990 KH9
BG (NICAM/ZWEI) BG (NICAM/ZWEI)
DK (MONO) DK (MONO) DK (MONO)
I (NICAM) I (NICAM) I (MONO)
M (MONO) M (MONO)
50/60 Hz 50/60 Hz 50 50 50 50
BG (ZWEI)
BG (NICAM/ZWEI)
BG (ZWEI)
– 3 –
TABLE OF CONTENTS
Section Title Page Section Title Page
Feature Difference ................................................................... 3
SERVICE NOTE ...................................................................... 6
1. GENERAL
Getting Started .............................................................. 1-1
Basic Operations ........................................................... 1-4
Additional Operations.................................................... 1-8
Karaoke sing-along ....................................................... 1-12
Editing............................................................................ 1-15
Additional Information ................................................... 1-17
2. DISASSEMBLY
2-1. Upper Case Removal .................................................... 2-1
2-2. Front Panel Section Removal........................................ 2-1
2-3. FL-110/FR-165 Board Rotary Switch,
KR Jack Holder Removal .............................................. 2-1
2-4. Mechanism Deck Removal ............................................ 2-1
2-5. TU-170 Board Removal................................................. 2-2
2-6. Rear Panel Section Removal........................................ 2-2
2-7. Power Block Removal ................................................... 2-2
2-8. MA-361 Board Removal................................................ 2-2
2-9. Internal Views ................................................................ 2-3
2-10. Circuit Boards Location ................................................. 2-4
3. BLOCK DIAGRAMS
3-1. Overall Block Diagram................................................... 3-1
3-2. Servo/System Control Block Diagram .......................... 3-3
3-3. Video (1) Block Diagram ............................................... 3-5
3-4. Video (2) Block Diagram ............................................... 3-7
3-5. Audio Block Diagram..................................................... 3-9
3-6. Karaoke Block Diagram ................................................ 3-11
3-7. Surround Block Diagram............................................... 3-13
3-8. Tuner Block Diagram..................................................... 3-15
3-9. Mode Control Block Diagram ........................................ 3-17
3-10. Power Block Diagram.................................................... 3-19
KR-33 (Karaoke 1) Schematic Diagram ....................... 4-47
KR-33 (Karaoke 2) Schematic Diagram ....................... 4-49
SR-36 Printed Wiring Board.......................................... 4-51
SR-36 Schematic Diagram............................................ 4-53
MJ-93 Printed Wiring Board and
Schematic Diagram ....................................................... 4-55
MJ-94 Printed Wiring Board and
Schematic Diagram ....................................................... 4-57
VR-74 Printed Wiring Board and
Schematic Diagram ....................................................... 4-59
SW-329 Printed Wiring Board and
Schematic Diagram ....................................................... 4-61
FL-110 Printed Wiring Board ........................................ 4-63
FL-110 Schematic Diagram .......................................... 4-65
FR-165 Printed Wiring Board........................................ 4-67
FR-165 Schematic Diagram.......................................... 4-69
HS-028SF Printed Wiring Board ................................... 4-71
HS-028SF Schematic Diagram..................................... 4-73
5. INTERFACE, IC PIN FUNCTION DESCRIPTION
5-1. System Control-Video Block Interface
(MA-361 BOARD IC003)............................................... 5-1
5-2. System Control-Servo Peripheral Circuit Interface
(MA-361 BOARD IC003)............................................... 5-1
5-3. System Control-Mechanism Interface
(MA-361 BOARD IC003)............................................... 5-2
5-4. System Control-System Control Peripheral Circuit
Interface (MA-361 BOARD IC003)................................ 5-3
5-5. System Control-Hi-Fi Audio Block Interface
(MA-361 BOARD IC003)............................................... 5-3
5-6. Servo/System/Timer/Tuner/Mode Control
Pin Function (MA-361 BOARD IC003) ......................... 5-4
5-7. Shift Resister
(TU-170 BOARD IC705) ............................................... 5-5
5-8. NICAM Processor Pin Function
(NK-11 BOARD IC1) ..................................................... 5-6
5-9. ZWEITON Processor Pin Function
(GK-12 BOARD IC001) ................................................. 5-6
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1. Frame Schematic Diagram ............................................ 4-3
4-2. Printed Wiring Boards and Schematic Diagrams ......... 4-9
MA-361 Printed Wiring Board ....................................... 4-9
MA-361 (Video, Audio) Schematic Diagram ................. 4-13
MA-361 (Servo/System Control)
Schematic Diagram ....................................................... 4-17
MA-361 (HiFi Audio) Schematic Diagram..................... 4-19
MA-361 (OSD) Schematic Diagram.............................. 4-21
MA-361 (Surround) Schematic Diagram....................... 4-23
MA-361 (I/O) Schematic Diagram................................. 4-25
MA-361 (Power Supply) Schematic Diagram ............... 4-27
TU-170 Printed Wiring Board........................................ 4-29
TU-170 (Tuner) Schematic Diagram ............................. 4-31
TU-170 (SIF) Schematic Diagram ................................ 4-33
RF-46 Printed Wiring Board.......................................... 4-36
RF-46 Schematic Diagram............................................ 4-37
GK-12 Printed Wiring Board and
Schematic Diagram ....................................................... 4-39
NK-11 Printed Wiring Board and
Schematic Diagram ....................................................... 4-41
RJ-84 Printed Wiring Board and
Schematic Diagram ....................................................... 4-43
KR-33 Printed Wiring Board.......................................... 4-45
6. ERROR CODES ....................................................... 6-1
7. ADJUSTMENTS
7-1. Mechanical Adjustments ............................................... 7-1
7-2. Electrical Adjustments................................................... 7-1
2-1. Pre-Adjustment Preparations........................................ 7-1
2-1-1. Instruments to be Used............................................ 7-1
2-1-2. Connection ............................................................... 7-1
2-1-3. Set-up of Adjustment ............................................... 7-1
2-1-4. Alignment Tapes....................................................... 7-1
2-1-5. Specified I/O Level and Impedance......................... 7-2
2-1-6. Adjusting Sequence ................................................. 7-2
2-2. Power Supply Adjustments ........................................... 7-2
2-2-1. Power Supply Check ................................................ 7-2
2-2-2. +6 V Adjustment ....................................................... 7-2
2-3. Servo System Adjustment............................................. 7-2
2-3-1. RF Switching Position Adjustment........................... 7-2
2-4. Audio System Adjustments ........................................... 7-3
2-4-1. Hi-Fi Audio System Adjustment ............................... 7-3
1. AF Switching Position Adjustment ........................... 7-3
2. Frequency Response Check .................................... 7-3
3. Overall Level Characteristic and
Distortion Factor Check ........................................... 7-4
4. Overall S/N Check.................................................... 7-4
– 4 –
2-4-2. Normal Audio System Adjustment........................... 7-4
1. ACE Head Adjustment ............................................. 7-4
2. E-E Output Level Check........................................... 7-4
3. Frequency Responce Check .................................... 7-4
4. Overall Level Characteristic and Distortion
Factor Check ............................................................ 7-5
5. Overall S/N Check.................................................... 7-5
2-5. Video System Adjustment ............................................. 7-5
2-5-1. VCO Oscillation Frequency Adjustment .................. 7-5
2-6. Tuner System Adjustment ............................................. 7-5
2-6-1. Separation Adjustment............................................. 7-5
2-7. Parts Arrangement Diagram for Adjustments............... 7-6
8. REPAIR PARTS LIST
8-1. Exploded Views ............................................................. 8-1
8-1-1. Front Panel and Cabinet Assemblies....................... 8-1
8-1-2. Chassis Assembly.................................................... 8-3
8-1-3. Mechanism Chassis Assembly (1) ........................... 8-4
8-1-4. Mechanism Chassis Assembly (2) ........................... 8-5
8-1-5. Mechanism Chassis Assembly (3) ........................... 8-6
8-2. Electrical Parts List ....................................................... 8-7
– 5 –
SERVICE NOTE
1. DISASSEMBLY
• This set can be disassembled in the order shown below.
Note: Pages in indicated pages in the SERVICE MANUAL.
Pages in indicated pages in the VHS MECHANICAL ADJUSTMENT MANUAL VI.
Set
Upper case
(Page 2-1)
Rear Panel
Section
(Page 2-2)
Power
Block
(Page 2-2)
MA-361
Board
(Page 2-2)
Rotary Switch
(Cam Encoder)
(Page 2-2)
Ground Shaft
Ass’y
(Page 13)
Drum
Ass’y
(Page 13)
Capstan
Motor
(Page 15)
Tuner
Unit
Pinch Press
Block Ass’y
(Page 14)
Mechanism
Deck
(Page 2-1)
Rubber
Belt
(Page 15)
Pully Gear
Ass’y
(Page 29)
Reel Direct
Ass’y
(Page 30)
Front Panel
Section
(Page 2-1)
FL Complete
Ass’y
(Page 13)
Retainer
Plate
(Page 22)
FL Slider
Block Ass’y
(Page 22)
Cam Gear
(Page 23)
FL-110
Board
(Page 2-1)
KR Jack
Holder
(Page 2-1)
Cam Motor
Retainer
(Page 31)
FR-165
Board
(Page 2-1)
Rotary Switch
(Jog/Shuttle)
(Page 2-1)
TU-170 Board
(EXCEPT KH9)
(Page 2-2)
Rubber
Belt
(Page 15)
Slider
(Page 26)
Loading
Gear (T, S)
(Page 28)
– 6 –
Cam Motor
(Page 31)
SECTION 1
GENERAL
SLV-ED100/EZ2000/K990/KH9
This section is extracted from SLV -K990
instruction manual. (3-867-112-11)
1-1
1-2
1-3
1-4
1-5
1-6
1-7
1-8
1-9
1-10
1-11
1-12
1-13
1-14
1-15
1-16
1-17
1-18 E
1-18
SLV-ED100/EZ2000/K990/KH9
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
2-1. UPPER CASE REMOVAL 2-3. FL-110/FR-165 BOARD, ROT AR Y SWITCH,
KR JACK HOLDER REMOVAL
1 Two tapping screws
3 Upper case
qa FL-110 board
2 Two tapping screws
qd VOL knob
(KH9)
qs Two VOL
knobs
6 Center button
0 Six screws
(B2.6 × 8)
qf KR jack
holder
8 Two screws
(B2.6 × 8)
9 Rotary switch (jog/shuttle)
7 Change speed ring
2 Four screws
(B2.6 × 8)
1 Flat cable
5 Flexible board
(CN105)
2-2. FRONT PANEL SECTION REMOVAL 2-4. MECHANISM DECK REMOVAL
(CN102)
4 FR-165
board
3 Five screws
(B2.6 × 8)
4 Connector
(CN204)
(ED100/EZ2000)
3 Connector
(CN901)
1 Connector
CN403: ED100/EZ2000
()
CN430: K990/KH9
6 Two claws
7 Two claws
0 Front panel section
8 Claw
(K990/KH9)
2 Flat cable
9 Claw
5 Connector
(CN903)
(K990/KH9)
CN701: EXCEPT KH9
CN702: KH9
7 Two screws
9 Mechanism deck
4 Flexible board
(CN201)
)(
Note:When mounting the mechanism deck,
5 Screw
(BVTP3 × 12)
1 Connector
(FE head)
(BVTP3 × 12)
first align f mark on the rotary
switch (cam encoder)
6 Earth lead
2 Connector
(ACE head)
3 Flat cable
8 Screw
(BVTP3 × 12)
2-1
2-5. TU-170 BOARD REMOVAL
(EXCEPT KH9)
2-7. POWER BLOCK REMOVAL
2 Three screws
(B3)
3 TU-170 board
1 Flat cable
(CN710)
1 Two tapping screws
2 Power block
2-6. REAR PANEL SECTION REMOVAL 2-8. MA-361 BOARD REMOVAL
1 Flat cable
(CN850)
(KH9)
2 Connector
(CN901)
(ED100/EZ2000)
5 Two harnesses
7 Two claws
6 Three claws
8 Two claws
3 Connector
(CN903)
(ED100/EZ2000)
4 Power cord
9 Rear panel
section
2 Two screws
(B3)
1 Flat cable
(CN701)
(EXCEPT KH9)
4 MA-361 board
3 Two screws
(B3)
2-2
2-9. INTERNAL VIEWS
FE head
1-500-144-11
Q012
Tape top sensor
8-729-043-84
Drum assembly (M901) (DZH-0A1A/Z-RP)
8-839-048-51
ACE head assembly
A-6759-620-A
D008
Tape top/end LED
8-719-048-26
Q011
Tape end sensor
8-729-043-84
Capstan motor
1-698-971-11
Drum assembly (M901) (DZH-0A1A/Z-RP)
8-839-048-51
Cam motor assembly
X-3947-577-1
2-3
2-10. CIRCUIT BOARDS LOCATION
RF-46 (KH9)
(RFMOD)
NK-11 (ED100/EZ2000Y)
(NICAM)
GK-12 (EZ2000S/K990)
(ZVEI TONE)
FL-110
MODE CONTROL,
()
IN/OUT
TU-170 (EXCEPT KH9)
(TUNER, SIF)
RJ-84 (ED100/EZ2000)
(ADDITIONAL REAR IN/OUT)
SR-36
(SURROUND)
KR-33 (K990/KH9)
(KARAOKE)
MJ-93 (ED100/EZ2000)
MIC IN/HEADPHONE,
()
MIC/HEADPHONE AMP
MJ-94 (K990/KH9)
(MIC IN, MIC AMP)
VR-74
MIC/ECHO/PHONE
()
LEVEL
SW-329
(ROTARY SWITCH)
MA-361
VIDEO, AUDIO, I/O,
(
SERVO/SYSTEM CONTROL
FR-165
(MODE CONTROL)
Power Block (HS-028SF)
(POWER SUPPLY)
)
2-4
2-4 E
J401
PHONES
ED100/EZ2000
LEVEL
IC905
SW2
S/P
SW1
DECODER OUT
R
K990/KH9
J302
IC401
SP2
SCL
VIDEO
LINE-2 OUT
FL-110 BOARD (2/4)
(SEE PAGE 4-55)
SLV-ED100/EZ2000/K990/KH9
MJ-93 BOARD (2/2)
RV451
(SEE PAGE 4-59)
VR-74 BOARD (3/3)
L, R
IC901
SURR
IC900
SS/SURR
(SEE PAGE 4-53)
SR-33 BOARD
EZ2000Y
PHONE
L
B
A/VC
J502
SKY TV
(SEE PAGE 4-43)
RJ-84 BOARD (2/3)
ED100/EZ2000
RJ-84 BOARD (3/3)
(SEE PAGE 4-63)
J500
(AUDIO)
LINE-2 OUT
L
R
(SEE PAGE 4-43)
K990/KH9
KR-33 BOARD (SEE PAGE 4-47, 49)
L/R IN
IC511
IC911
IC562
CTL
HEAD
M
PG/FG
DRUM
MOTOR
PICK UP
K990/KH9
J302
AUDIO
LINE 2 OUT
L
R
CTL (+)
CTL (–)
DRUM PG
DRUM FG
DRUM VS
AUDIO
CNJ901
LINE 1 OUT
(SEE PAGE 4-63)
FL-110 BOARD (3/4)
L
R
LINE
SELECT
D/A
LPF
IC561
XRST
REDY
TRDT
DSP
IC521
KARAOKE
A/D
LPF
IC542
MOD A
MUSIC DET
MUSIC
MONO
(1/2)
IC601
IC541
MIC A/D
IC003
LEVEL METER L,
LEVEL METER R
IC502
LEVEL
METER
AMS
AMS
IC621
LPF
NAI2
CONTROL
SERVO/SYSTEM
XRST
MUSIC DET
MIC IN
MIC IN
PB
MODE CONTROL
AMS
MIC DET
MIC CONT
MIC DET
(2/2)
IC601
TRDT
REDY
ECHO LEVEL
MIC CONT, ECHO LEVEL
FG
M
MOTOR
CAPSTAN
CAP FG
CAP VS
SP1, SP2, SCL, SDA, OCS
PICK UP
LOADING
IC007
FE
MOTOR
M
D008
T SENS
DMS1
DMS2
Q011
T SENS
LCD CS, A0
LED
SI, S CLK
DRIVER
S SENS
R2
POWER CONT
S255
T/S LED
Q012
S SENS
LED CS
SYS RESET
VTR, ETR
SYNC/K. ON, JOG,
A DUB, REC, TIMER
SWITCH
ROTARY
Q013
LED
END LED
S256
DRIVER
ETR 1, 2
ROTARY
VTR 1, 2
SWITCH
FUNC2
SWITCH
FUNCTION
MOTOR
CAM
MODE1-4
(SEE PAGE 4-63)
FL-110 BOARD (4/4)
FUNCTION
IC301
NTPB
S001
SIGNAL
CONTROL
SWITCH
REMOTE
NTPB
PAL TV
IC004
POWER FAIL
RECEIVER
COMMANDER
RESET
RESET
PLL DATA
PLAY
FR-165 BOARD
(SEE PAGE 4-69)
(SEE PAGE 4-62)
SW-329 BOARD
PLL CLOCK
PLL ENABLE
SWITCH
FUNCTION
STOP
CLICK
SHUTTLE
POWER CONT
S111, 112
IDA1
SW 12V
T REEL FG
ICL1
FUNC1
SWITCH
FUNCTION
IC006
PH002
DMS1, 2
T REEL
EEP ROM
S REEL FG
WC
LCD
MODULE
PH001
S REEL
SIRCS
FUNC1
IC102
PRF
REC
S003
S002
SWITCH
ROTARY
CAM
DRIVE
IC401
(1/2)
SECTION 3
IC201
BLOCK DIAGRAMS
MA-361 BOARD
VIDEO
VIDEO
CNJ901
LINE-1 OUT
SCL, SDA, OCS
OSD
CV
IDA1
ICL1
Y/C PROCESS
(SEE PAGE 4-13 to 29)
HEAD
SP
CH1SPCH2LPCH1LPCH2
(SEE PAGE 4-31, 33)
TU-170 BOARD (1/2):EXCEPT KH9
INS
IC202
VIDEO
VIDEO
L2V
L1V, L3V
SP1, SCL
IC705
:EXCEPT KH9
SHIFT
RESISTOR
INS
NAPB, A RP
(SEE PAGE 4-37)
RF-46 BOARD (1/2):KH9
INPUT
SELECT
ED100/EZ2000S
TUV
IC350
IC850
:KH9
IDA1
REC AFM
AUDIO
ICL1
HEAD
IC360
AUDIO
PB AFM
(HiFi)
MOD A
NAI2
(2/2)
IC201
AUDIO
PROCESSOR
SROL, SROR, L OUT, R OUT
SROM
NORM O
NORM I
( HiFi )
PROCESSOR
L1L
L1R
L2L, L2R
L3L, L3R
AMP
AUDIO
REC/PB
CH2
CH1
(MONO)
TU M
TU R
TU L,
(MONO)
IC321
AUDIO
HEAD
REC/PB
MOD V
SW
MOD A
TU701
TU M
:ED100
TU V
T331, Q332
SDA
TU702
BIAS
SCL
:EZ2000/
ERASE
AUDIO
K990
OSC
PLL DATA
PLL CLOCK
PLL ENABLE
BIAS
T330, Q331, 339
ERASE
FULL ERS
TU-170
BOARD (2/2)
AU OUT
SIF OUT,
(SEE PAGE 4-31, 33)
L1V
OSC
ERASE
VIDEO
FULL
ERASE
CNJ901
EXCEPT KH9
IC461
L
IN
LINE 1
ED100/
R
AUDIO
EZ2000
SDA, SCL
ED100/EZ2000Y
NICAM
J302
(SEE PAGE 4-42)
NK-11 BOARD
PROCESS
IC001
L2L
L3V
L2V,
(SEE PAGE 4-63)
FL-110 BOARD (1/4)
VIDEO
J301
K990/KH9
ED100/EZ2000
LINE-2
KH9
MOD V
MOD A
RFU850
(SEE PAGE 4-37)
RF-46BOARD (2/2)
EZ2000S/K990
(SEE PAGE 4-39)
GK-12 BOARD
SDA, SCL
IC001
ZWEITON
PROCESS
MIC CONT
ECHO LEVEL
L3L
L2R
(SEE PAGE 4-43)
RJ-84 BOARD (1/3)
L
R
AUDIO
IN
SKY TV
J502:EZ2000Y
ED100/EZ2000
DECODER IN
L3R
L3V
MIC
VOL 1
RV452
IC430
L
R
IN
VIDEO
J501
LINE-3
IN
AUDIO
(SAT IN)
OUT
K990/KH9
L
J430
MIC IN
OUT
J500
LINE-2
(AUDIO)
+35V
ED100/EZ2000
MIC
ECHO
VOL 2
RV451
RV450
R
J431
J432
CONTROL
+13V
+13V
MIC
RV452
IC400
J400
MIC IN
VR-74
BOARD (1/3)
(SEE PAGE 4-59)
(SEE PAGE 4-58)
MJ-94 BOARD
POWER
BLOCK
VOL
+6V
HS-028SF
(SEE PAGE
4-73)
VR-74
BOARD (2/3)
(SEE PAGE 4-59)
(SEE PAGE 4-55)
MJ-93 BOARD (1/2)
+6V
–12V
3-1 3-2
05
3-1. OVERALL BLOCK DIAGRAM
DRUM
MOTOR
MM
MOTOR
CAPSTAN
MM
FG
DRIVER
DRUM MOTOR
DRUM MOTOR
(M901)
2
4
D FG
D VS
2
4
CN004
59DRUM QR
102
108
DRUM FG
DRUM PWM
1/2
IC003
SERVO/SYSTEM CONTROL, MODE CONTROL
PLL DATA
PLL ENABLE
AFT
88 PLL CLK
87862074894049
PICK UPPGPICK UP
3
D PG
3
EXCEPT KH9
656467
107
X1
DRUM PG
IC003 <z/m REC/PB
I/DK
*
STEREO DET
S/P DATA1
BG*SAP DET
IIC DATA1
IC003 <z/, REC/PB
X002
X001
32.768kHz
X2
OSC1
4.96 Vp-p (25 Hz)
IC003 yf REC/PB
IIC CLK
WC
50
57
CAPSTAN
CAPSTAN MOTOR
(M902)
5
CAP VS
CAP RVS
5.04 Vp-p (301.2 Hz)
5
CN006
BZ001
(BUZZER)
10MHz
69
42
101
OSC2
BUZZER
CAP PWM
IC003 yj REC/PB
1.8 Vp-p (32.768 kHz)
AF SWP14AF ENV85AF REC P34AF REC95FULL ERASE47RVDT35SR MUTE28SCORE H54SCORE L32MUSIC DET33MIC DET31AMS
99
MOTER
DAIVER
246
CTL-REF
246
D5V
61
CAP RVS
FG
PICK UP
3
LIMITTER
CAP FG
3
CN005
IC007
CAM MOTOR
8
38
CAP FG
CAP TQR
3.5 Vp-p (10 MHz)
IC003 ek REC/PB
MIC CONT/DET21ECHO LEVEL79KR ON
18
M903
CAM MOTOR
CAM (+)
2•3
DRIVER
5.3 Vp-p (H)
X RST
103
M
10
CAM (+)
REDY
104
CAM (–)
IN2
4
75
CAM
IC003 8 REC/PB
XLAT
105
1
2
CAM (–)
S003
SWITCH
ROTARY
2425262715
MODE1
MODE2
MODE3
TRDT48SCK36S/P DATA292SD
46
D 5V
D008
MECHA
POSITION
Q011
Q012
11
T SENS
MODE4
S SENS
IC003 ok REC/PB
5.1 Vp-p (737.6 Hz)
LEVEL METER L
LEVEL METER R
17
A MUTE
16
83
Q013
QVD
C SYNC12RF ENV
98
110
IC003 1 REC/PB
PH002
FG
LED
T REEL
DRIVER
93
30
T REEL
END LED
4.8 Vp-p (H)
RF SWP
C KILLER DET
PAL97MESECAM DET39APC PWM13APC ERROR72OSD CS
94
80
100
5.6 Vp-p (25 Hz)
IC004
PH001
8
FG
RESET
S REEL
6
29
66
RESET
S REEL
REC/PB
IC003 <z//
CTL
HEAD
CTL (X)
CTL (Y)
3
1
CN002
1
CTL (+)
3
CTL (–)
56
POWER FAIL
5.36 Vp-p (25 Hz)
AO
SYS RESET
FUNC KEY1
FUNC KEY2
LCD CS
77
58
19
22
81
106
A DUB
S CLK
53
Q009
IC003 3 REC/PB
DUB
AUDIO
675
CTLAMP
S DATA
LED CS
52
76
CTL FB
SIRCS IN
DMS 1
60
55
+
4
CTL BIAS
DMS 2
44
5.6 Vp-p (25 Hz)
S002
(REC PRF)
96
112
CTL REF
REC PROOF
ETR1/KR CONT1
ETR2/KR CONT2
VIR. SURR1
VIR. SURR2
POWER CONT
41
91
90
44
78
IC003 ol REC/PB
3-2. SERVO/SYSTEM CONTROL BLOCK DIAGRAM
5.36 Vp-p (25 Hz)
PCL
PEN
PDA
MA-361 BOARD (1/10)
(SEE PAGE 4-17)
/DK
AFT
*
STDET
TUNER
(SEE PAGE 3-15)
7
WC
IDA1
56
IC006
ICL1
EEP ROM
BG
SP1
SCL
ICL1
IDA1
ICL1
IDA1
ASWP
AFE
AUDIO
FE
AFR
AFRP
SRMT
(SEE PAGE 3-9, 10)
RVDT
SCORE L
SCORE H
MIC DET
MUSIC DET
SF
SJ
SRSTSU
ECHO
KRON
KARAOKE
(SEE PAGE 3-11, 12)
SS
KRON
SG
SH
SP2
SCK
MICON
SELF
SURROUND
ICL1
(SEE PAGE 3-13, 14)
IDA1
FE
SCL
AMT
VCS1
VQV1
VR6
V SWP
Q010
ACK
VME
VPL1
VIDEO 1
(SEE PAGE 3-5, 6)
CONV.
PWM-DC
VPC
SCL
OCS
SDA
VIDEO 2
(SEE PAGE 3-5)
AO
SYS RESET
S CLK
LCD CS
FUNCTION KEY1
FUNCTION KEY2
MODE
SI
LED CS
SIARCS
CONTROL
(SEE PAGE 3-17)
DMS1
DMS2
ETR1
ETR2
VTR1
VTR2
P CONT
TO MA-361 BOARD
IC6014 pin, IC602 4 pin
05
3-3 3-4
SLV-ED100/EZ2000/K990/KH9
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