SLV-ED8ME
Sony SLV-ED8ME, SLV-EZ8AS, RMT-V243, SLV-EZ8NZ, SLV-ED8ML Service Manual
...
MICROFILM
SERVICE MANUAL
Australian Model
SLV-EZ8AS/EZ9AS
E Model
SLV-ED8ML
ME Model
SLV-ED8ME
NewZealand Model
SLV-EZ8NZ
RMT-V243/V245
VIDEO CASSETTE RECORDER
SLV-ED8ME/ED8ML/EZ8AS/
EZ8NZ/EZ9AS
G
• Refer to the SERVICE MANUAL of VHS MECHANICAL
ADJUSTMENTS VI for MECHANICAL ADJUSTMENTS.
(9-921-647-11)
* The abbreviations of ED8, EZ8 and EZ9 contained in this service manual are
indicated when these models are common to all their corresponding models
as given below.
Photo: SLV-ED8ML
S MECHANISM
ED8ME
ED8ML
ED8
Abbreviated
model name
All model
names
SLV-
EZ8AS
EZ8NZ
EZ8
EZ9AS
EZ9
System
Color system
ED8:
PAL, MESECAM, NTSC 3.58,
NTSC 4.43
EZ8/EZ9:
PAL, NTSC 4.43
TV system
ED8:
B/G, D/K, I
EZ8/EZ9
B/G
Channel coverage
ED8:
B/G: VHF E2 to E12/UHF E21 to E69/
CATV S01 to S05, S1 to S41
D/K: VHF R1 to R12, UHF R21 to R69
I: VHF SA4 to SA13/UHF B21 to B69/
CATV S01 to S05, S1 to S41
M: VHF A2 to A13/UHF A14 to A69/
CATV A-8 to A1, A to W, W+1 to W+84
EZ8AS/EZ9AS:
VHF AS0 to AS12, AS5A, AS9A
UHF AS28 to AS69
CATV S01 to S05, S1 to S41
SPECIFICATIONS
EZ8NZ:
VHF NZ1 to NZ11
UHF E21 to E69
CATV S01 to S05, S1 to S41
Stereo system
ED8/EZ8NZ:
NICAM STEREO: B/G, I
ZWEITON German stereo: B/G
ED8AS/EZ9AS:
ZWEITON German stereo: B/G
RF output signal
ED8/EZ8NZ:
UHF channels 21 to 69
EZ8AS/EZ9AS:
UHF channels 28 to 69
Aerial out
75-ohm asymmetrical aerial socket
Inputs and outputs
LINE-1, 2-IN
VIDEO IN, phono jack (1)
Input signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO IN, phono jack (2)
Input level: 327 mVrms
Input impedance: more than 47 kilohms
LINE-3 IN (SAT IN) (ED8, EZ9)
VIDEO IN, phono jack (1)
Input signal: 1Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO IN, phono jack (2)
Input level: 327mVrms
Input impedance: more than 47 kilohms
– Continued on next page –
– 2 –
SAFETY CHECK-OUT
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.
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
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.
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.
LINE –1 OUT
VIDEO OUT, phono jack (1)
Output signal: 1 Vp-p, 75 ohms, unbalanced, sync negative
AUDIO OUT, phono jack (2)
Standard output: 327 mVrms
Load impedance; 47 kilohms
Output impedance: less than 10 kilohms
LINE –2 OUT (AUDIO)
AUDIO OUT, phono jack (2)
Standard output: 327 mVrms
Load impedance; 47 kilohms
Output impedance: less than 10 kilohms
SKY TV DECODER (EZ8NZ)
VIDEO IN, phono jack (1)
Input signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
VIDEO OUT, phono jack (1)
Output signal: 1 Vp-p, 75 ohms,
unbalanced, sync negative
General
Power requirements
110 – 240 V AC, 50/60 Hz (ED8)
220-240 V AC, 50 Hz (EZ8/EZ9)
Power consumption
22W (ED8)
23W (EZ8/EZ9)
Operating temperature
5 ˚C to 40 ˚C
Storage temperature
–20 ˚C to 60 ˚C
Dimensions
Approx. 430 × 100 × 286 mm (w/h/d):
including projecting parts and controls
Mass
Approx. 5.7 kg: (ED8)
Approx. 5.9 kg: (EZ8/EZ9)
Supplied accessories
Remote commander (1)
R6 (size AA) batteries (2)
Aerial cable (1)
Plug adaptor (1) (ED8)
Audio/Video cable (3-phono to 3-phono) (1)
Design and specifications are subject to change
without notice.
SLV- ED8 EZ8 EZ8 EZ9
FEATURE AS NZ AS
ME-SECAM (REC/PB) ®/®G/GG/GG/G
ADDITIONAL REAR INPUT (SAT IN) ®GG®
SKY TV DECODER IN/OUT G/GG/G®/®G/G
MODULATOR SYSTEM G,K,I,M G G G
CLICK/JOG SHUTTLE (REMOTE COMMANDER) G/GG/GG/G®/®
REMOTE COMMANDER RMT- V245 V245 V245 V243
• Feature Difference
– 3 –
TABLE OF CONTENTS
Section Title Page Section Title Page
Feature Difference ................................................................... 2
SERVICE NOTE...................................................................... 4
1. GENERAL
Getting Started .............................................................. 1-1
Basic Operations ........................................................... 1-9
Additional Operations.................................................... 1-13
Editing............................................................................ 1-15
Additional Information ................................................... 1-16
2. DISASSEMBLY
2-1. Upper Case Removal.................................................... 2-1
2-2. RJ-79, NK-11 Board Removal....................................... 2-1
2-3. Rear Panel Removal ..................................................... 2-1
2-4. Front Panel Section Removal ....................................... 2-1
2-5. FR-137, DM-77, SW-307, IO-64 Board
Removal (EZ9) .............................................................. 2-2
2-6. Control Switch Block Removal (EZ9) ........................... 2-2
2-7. FR-137, DM-77, IO-64 Board Removal (ED8/EZ8)...... 2-2
2-8. Mechanism Deck Removal ........................................... 2-2
2-9. Power Block Removal ................................................... 2-3
2-10. PS-414, MA-325 board Removal .................................. 2-3
2-11. Internal Views................................................................ 2-4
2-12. Circuit Boards Location ................................................. 2-5
3. BLOCK DIAGRAMS
3-1. Overall Block Diagram .................................................. 3-1
3-2. Video1 Block Diagram ................................................... 3-4
3-3. Video2 Block Diagram ................................................... 3-5
3-4. Servo/System control Block Diagram ........................... 3-7
3-5. Audio Block Diagram..................................................... 3-9
3-6. Tuner Block Diagram ..................................................... 3-11
3-7. Mode Control Block Diagram ........................................ 3-13
3-8. Power Block Diagram.................................................... 3-15
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1. Frame Schematic Diagram ........................................... 4-3
4-2. Printed Wiring Boards and Schematic Diagrams ......... 4-5
MA-325 (Head Amp) Schematic Diagram .................... 4-5
MA-325 Printed Wiring Board ....................................... 4-9
MA-325 (Video, Audio) Schematic Diagram................. 4-11
MA-325 (System Control) Schematic Diagram ............ 4-15
MA-325 (Servo Control) Schematic Diagram ............... 4-17
MA-325 (Bias, CTL) Schematic Diagram ..................... 4-19
MA-325 (Hi-Fi Audio) Schematic Diagram.................... 4-21
MA-325 (OSD) Schematic Diagram.............................. 4-23
MA-325 (IO) Schematic Diagram.................................. 4-25
MA-325 (Tuner) Schematic Diagram ............................ 4-27
IO-64 Printed Wiring Board and
Schematic Diagram ....................................................... 4-30
RJ-79 Printed Wiring Board and Schematic Diagram .. 4-31
NK-11 Printed Wiring Board and
Schematic Diagram ....................................................... 4-33
DM-77 Printed Wiring Board and
Schematic Diagram ....................................................... 4-35
FR-137, SW-307 Printed Wiring Boards....................... 4-37
FR-137, SW-307 Schematic Diagram .......................... 4-39
PS-414 Printed Wiring Board........................................ 4-41
PS-414 Schematic Diagram.......................................... 4-43
SR-718 Printed Wiring Board ....................................... 4-45
SR-718 Schematic Diagram ......................................... 4-47
5. INTERFACE, IC PIN FUNCTION DESCRIPTION
5-1. System Control-Video Block Interface
(MA-325 board IC161) .................................................. 5-1
5-2. System Control-Servo Peripheral Circuit Interface
(MA-325 board IC161) .................................................. 5-1
5-3. System Control-Mechanism Interface
(MA-325 board IC161) .................................................. 5-2
5-4. System Control-System Control Peripheral Circuit
Interface (MA-325 board IC161) ................................... 5-3
5-5. System Control-Hi-Fi Audio Block Interface
(MA-325 board IC161) .................................................. 5-3
5-6. Servo/System Control Microprocessor Pin Function
(MA-325 board IC161) .................................................. 5-4
5-7. Timer/Tuner Control Microprocessor Pin Function
(FR-137 board IC301) ................................................... 5-5
5-8. Nicam Processor Pin Function
(NK-11 board IC1) ......................................................... 5-6
6. ERROR CODE.......................................................... 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 Tape......................................................... 7-1
2-1-5. Specified I/O Level and Impedance......................... 7-1
2-1-6. Adjusting Sequence ................................................. 7-2
2-2. Power Supply Adjustment............................................. 7-2
2-2-1. Power Supply Check................................................ 7-2
2-2-2. +6V 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
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. 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
(ED8/EZ8) ................................................................ 8- 1
8-1-2. Front panel and Cabinet Assemblies
(EZ9)......................................................................... 8-2
8-1-3. Chassis Assembly .................................................... 8-3
8-1-4. Mechanism Chassis Assembly (1)........................... 8-4
8-1-5. Mechanism Chassis Assembly (2)........................... 8-5
8-1-6. Mechanism Chassis Assembly (3)........................... 8-6
8-2. Electrical Parts List........................................................ 8-7
– 4 –
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.
NK-11 Board
(ED8/EZ8NZ)
(Page 2-1)
Set
Upper case
(Page 2-1)
Front Panel
Section
(Page 2-1)
Power
Block
(Page 2-3)
Rear Panel
(Page 2-1)
Pinch Press
Block Ass’y
(Page 14)
Ground Shaft
Ass’y
(Page 13)
Drum Ass’y
(Page 13)
RJ-79 Board
(Page 2-1)
Mechanism
Deck
(Page 2-2)
FR-137 Board
(Page 2-2)
FL complete
Ass’y
(Page 13)
FL Slider
Block Ass’y
(Page 22)
DM-77 Board
(Page 2-2)
SW-307 Board
(EZ9)
(Page 2-2)
Rubber
Belt
(Page 15)
IO-64 Board
(Page 2-2)
Retainer
Plate
(Page 22)
Rubber
Belt
(Page 15)
Capstan
Motor
(Page 15)
Control Switch
Block (EZ9)
(Page 2-2)
Rotary
Switch
(Page 2-2)
Tuner
Unit
Pully Gear
Ass’y
(Page 29)
Cam Gear
(Page 23)
Cam Motor
Retainer
(Page 31)
Rubber
Belt
(Page 15)
Reel Direct
Ass’y
(Page 30)
Slider
(Page 26)
Loading
Gear (T, S)
(Page 28)
Cam Motor
(Page 31)
MA-325 Board
(Page 2-3)
PS-414 Board
(Page 2-3)
1-1
SECTION 1
GENERAL
This section is extracted from SLV ED8ME/ML instruction manual.
SLV-ED8/EZ8/EZ9
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
1-17 (E)
2-1
Note: Follow the disassembly procedure in the numerical order given.
2-1. UPPER CASE REMOVAL 2-3. REAR PANEL REMOVAL
2-2. RJ-79, NK-11 BOARD REMOVAL
2-4. FRONT PANEL SECTION REMOVAL
SECTION 2
DISASSEMBLY
SLV-ED8/EZ8/EZ9
1 Two tapping screws
2 Two tapping screws
3 Upper case
5 NK-11 board
(ED8/EZ8NZ)
1 Two connectors
(CN951, 952)
4 Connector
(CN751)
3 RJ-79 board
2 Four screws
(BVTP3 × 12)
3 Harness
5 Two claws
4 Three claws
6 Claw
7 Claw
8 Rear panel
2 Connector
(CN361)
1 Two connectors
(CN101, 901)
1 Connector
(CN423)
2 Flat cable
(CN105)
3 Two claws
4 Claw
5 Three claws
6 Front panel section
2-2
2-5. FR-137, DM-77, SW-307, IO-64 BOARD
REMOVAL (EZ9)
2-8. MECHANISM DECK REMOVAL
2-6. CONTROL SWITCH BLOCK REMOVAL
(EZ9)
2-7. FR-137, DM-77, IO-64 BOARD
REMOVAL (ED8/EZ8)
8 DM-77 board
!™ IO-64
board
1 Flat cable
(CN309)
5 Flat cable
(CN308)
9 Flexible board
(CN451)
6 Flexible board
(CN302)
7 Four screws
(B2.6 × 8)
3 Four screws
(B2.6 × 8)
2 Screw
(B2.6 × 8)
4 FR-137 board
!¡ SW-307 board
0 Two screws
(B2.6 × 8)
5 Control switch block
2 Damper holder
4 Fulcrum plate
(right) assembly
1 Two screws
(B2.6 × 8)
3 Screw
(B2.6 × 8)
8 IO-64 board
4 Flexible board
(CN451)
2 Four screws
(B2.6 × 8)
1 Nine screws
(B2.6 × 8)
3 FR-137 board
5 Connector
(CN307)
6 DM-77 board
7 Screw
(B2.6 × 8)
1 Flexible board
5 Screw
(BVTP3 × 12)
4 Screw
(B3)
6 Two screws
(BVTP3 × 12)
7 Mechanism deck
3 Connector
(FE head)
2 Connector
(ACE head)
Note: When mounting the mechanism deck,
first align ¢ mark on the rotary switch.
2-3
2-9. POWER BLOCK REMOVAL
2-10. PS-414, MA-325 BOARD REMOVAL
1 Power cord
3 Power block
2 Two screws
(B3)
6 MA-325 board
3 PS-414 board
2 Three screws
(B3)
4 Screw
(B3)
1 Connector
(CN162)
5 Three screws
(B3)
2-4
2-11. INTERNAL VIEWS
Drum assembly (M901) (DZH-95A/Z-RP)
8-839-045-02
Q100
Tape end sensor
8-729-043-84
D102
Tape top/end LED
8-719-048-26
M903
Cam motor assembly
X-3947-577-1
Q101
Tape top sensor
8-729-043-84
FE head
1-500-144-11
Drum assembly (M901) (DZH-95A/Z-RP)
8-839-045-02
M902
Capstan motor
1-698-971-11
2-5
2-12. CIRCUIT BOARDS LOCATION
2-5 E
MA-325
(
VIDEO, AUDIO, I/O,
SERVO/SYSTEM CONTROL, TUNER
)
DM-77
(MODE CONTROL)
PS414
(POWER SUPPLY)
SW-307 (EZ9)
(POWER SWITCH)
NK-11 (ED8, EZ8NZ)
(NICAM)
RJ-79
(ADDITIONAL REAR IN/OUT)
FR-137
(
FL DRIVE,
)
MODE CONTROL
POWER BLOCK
(SR-718)
(SWITCHING REGULATOR)
IO-64
(FRONT IN)
SLV-ED8/EZ8/EZ9
3-1 3-2
SECTION 3
BLOCK DIAGRAM
3-1. OVERALL BLOCK DIAGRAM
MPX
PROCESSOR
INSEL1
IIC CLK, IIC DATA
COMP SYNC
RF ENV, RF SWP
SCK, SO
AF SWP
A MUTE
CNJ480
L2 IN V
L2 IN L
L2 IN R
VIDEO
AUDIO L
AUDIO R
IO-64 BOARD
(SEE PAGE 4-30)
RJ-79 BOARD (2/3)
(SEE PAGE 4-31)
LINE 2 IN
CNJ901
L1 IN V
L1 IN L
L1 IN R
L1 IN L
NA HEAD PB
BIAS VCC
NORMAL AU
NA HF OUT
A MUTE
NA REC
L1 IN R
VIDEO
AUDIO L
AUDIO R
LINE 1 IN
CNJ953
VIDEO
AUDIO L
AUDIO R
AUDIO L
AUDIO R
LINE-1 OUT
LINE-2 OUT
CNJ952
L3 IN V
L3 IN L
L3 IN R
SAT L
SAT R
VIDEO
AUDIO L
AUDIO R
RJ-79 BOARD (1/3)
(SEE PAGE 4-30)
PS-414 BOARD
(SEE PAGE 4-43)
LINE 3 IN
(SAT IN)
BUFFER
IC961
BUFFER
IC901
IC501
ED8/EZ9
SWITCH
Q600
VIDEO
SELECTOR
CNJ901
SWITCH
Q601
12V
REC
MTR12V
UN13V
UN30V
POWER CONT
UN12V
SW5V
D6V
–13V
–F
+F
GND
35V
AC
110~240V
6V
–13V
GND
13V
SWITCH
Q603
SWITCH
Q602
IC600
VIDEO
REC/PB
AMP
IC340
AUDIO
REC/PB
AMP
IC201
AUDIO
PROCESSOR
(MONO)
IC201
IC202
IC401
CCD
OSD
BUFFER
BUFFER
IC203
IC702
Y/C
PROCESSOR
VIDEO
HEAD
Hi-Fi
AUDIO HEAD
(1/2)
(2/2)
IC360
LINE OUT L, LINE OUT R
MOD A
TUNER M
TUNER L
TUNER R
IC750
AUDIO
PROCESSOR
(Hi-Fi)
IN
OUT
AERIAL IN
AERIAL OUT
CNJ954
DEC IN
DEC OUT
RJ-79 BOARD (3/3)
(SEE PAGE 4-31)
BUFFER
TUNER/MODURATOR
Q901
DRUM FG
DRUM PG
M901
DRUM MOTOR
MONO
AUDIO HEAD
AUDIO
ERASE HEAD
FULL
ERASE HEAD
SP CH1
SP CH2
EP CH1
EP CH2
CH1
CH2
COMP SYNC
RF ENV, RF SWP
REC RF, PB RF, CROT
SCK, SO
AF SWP
AFM REC, PB AFM
BIAS
OSC
BIAS
OSC
SWITCH
T081
T091
IC071
TU701:ED8
TU702:EZ8/EZ9
EZ8NZ
Q901
MUTE
Q750, Q753
MOD V
LINE OUT L
LINE OUT R
MA-325 BOARD
(SEE PAGE 4-5~4-27)
IIC CLK, IIC DATA
QVD, NT JUDGE, MESECAM DET
TV VIDEO
VIDEO OUT
OSD V
CGV, HDET,
CG CS
SCK, SI
TV VIDEO
DEC IN
INSEL 1
L3 IN V
TV/VTR
VIDEO
MOD A
AUDIO
SDA0,SCL0
PLL DATA,
PLL CLK,
PL ENABLE,
AFT, SAP,
FMONO
MUTE
Q751-Q753
TA MUTE
L OUT, R OUT
EZ8AS/EZ9
NICAM
PROCESSOR
IC301
IC303
IC302
IC400
POWER
L OUT, R OUT
ED8/EZ8NZ
NK-11 BOARD
(SEE PAGE 4-33)
TIMER/TUNER/
MODE
CONTROL
SW-307 BOARD
(SEE PAGE 4-39)
FR-137 BOARD
(SEE PAGE 4-39)
DM-77 BOARD
(SEE PAGE 4-35)
LED
DRIVER
FUNCTION
SWITCH
FUNCTION
SWITCH
EEP
ROM
RESET PULS
GENERATOR
FUNCTION
SWITCH
FUNCTION
SWITCH
CLIK
SHUTTLE
REMOTE
CONTROL
RECEIVER
OPERATING
SWITCH BLOCK
REMOTE
CONTROL
RECEIVER
FLUORESCENT
INDICATOR
TUBE
Q400
EZ9
ED8/EZ8
POWER
LED
DRIVER
Q300
JOG
LED
DRIVER
POWER CONT
A/D2
TA MUTE
HDET, CGV, CG CS
SCK, SI, SO
A/D6, 7
LED CS
A/D0, 1
DMS1, 2
SIRCS IN
SDA0, SCL0
PLL DATA, PLL CLK, PLL ENABLE,
AFT, FMONO, SAP
BZ201
ASURA CS, ASURA RESET
POWER
FAIL
RESET
BUZZER
G1-G3
SEG1-6
ND320
D FG
D PG
DRM DA
D VS
M
IC101
IC161
(1/2)
CAP FG
M902
CAPSTAN MOTOR
CAP FG
CAP DA
CAP RVS, CAP TRQ PWM
M
CAM
M903
CAM MOTOR
CAP VS
M
MODE1-4
IC101
IC130
S100
(2/2)
CAM MOTOR
DRIVER
T/S LED
Q111
LED
DRIVER
ROTARY
SWITCH
D102
Q101
T SENS
Q101
S SENS
PH100
T REEL
SENS
T REEL FG
PH101
S REEL
SENS
NTSC PB
SWITCH
S REEL FG
T SENS
S SENS
S101
REC PRE
REC PRE
S151
CTL RESET
NT PB SW
CTL HEAD
IC001, IC021
CTL AMP
Q001
CTL HYS HIGH
PB CTL, REC CTL
AF RECP, AF RFC, FULL ERASE
CAP STOP
SERVO/SYSTEM
CONTROL
WC
POWER
BLOCK
SR-718
SAT DEC
ED8/EZ9
EZ8NZ
AF RECP, AF RFC, FULL ERASE
FULL ERASE
AMP
AMP
GAIN
SWITCH
05
3-4
3-2. VIDEO1 BLOCK DIAGRAM
SLV-ED8/EZ8/EZ9
3
REC
IDEL
ENV
DET
PB RF
BUFF
3
2
4
7
5
6
8
1
11
10
2
5
13
14
22
28
21
18
26
4
12
30
6
2
1
3
20
19
17
REC
ADJ
IC501
CN502
SP CH1 F
SP CH1 S
SP CH2 F
SP CH2 S
EP CH2 F
EP CH2 S
EP
CH1 S
EP
CH1 F
DET
HPF
MA-325 BOARD (1/5)
(SEE PAGE 4-11)
CN501
REC CURR
REC RF
REC SWP
CHECK
VIDEO
HEAD
SP
CH1
SP
CH2
EP
CH2
EP
CH1
SW2
SW1
SW9
SW5
REC
REC
VCA
PB
PB
PB
PB
VIDEO REC/PB AMP
SW6
SW10
SW4
SW8
SW3
SW7
Q501
C ROT
COMP SYNC
PB RF
REC RF
C ROT
COMP SYNC
PB ENV
SCK1 (SSB)
SO1 (SSB)
RF SWP
SCK1 (SSB)
SO1 (SSB)
RF SWP
SYSTEM
CONTROL
(SEE PAGE 3-8)
VIDEO 2
(SEE PAGE 3-5)
05
IC501 !¶ REC/PB
5.1Vp-p (2V)
2.5Vp-p (H)
IC501 !• REC/PB
IC501 @¡ REC/PB
4.6Vp-p (2V)
IC501@™ PB
88mVp-p (H)
IC501 @• REC
640mVp-p (H)
IC5014 REC
3.4Vp-p (H)
SLV-ED8/EZ8/EZ9
3-5 3-6
3-3. VIDEO2 BLOCK DIAGRAM
1.5 Vp-p (14.32 MHz)
IC401 5 REC/PB
IC401 7 REC/PB
IC401 2 REC/PB
5.2 Vp-p (2V)
1.6Vp-p (17.73MHz)
1.6 Vp-p (H)
IC401 @º REC/PB
3.6 Vp-p (13.89 MHz)
IC401 @•REC/PB
2.0Vp-p ( H)
IC401 !§,!• REC/PB
4.4Vp-p (H)
IC201 #¶ REC/PB
IC201 %∞ REC/PB
552mVp-p (3.58MHz)(NTSC)
IC202^º REC/PB
512mp-p (4.43MHz)(PAL)
IC202!£ REC/PB
REC:360mVp-p (H)
PB:270mVp-p(H)
IC202 7 REC/PB
REC:320mVp-p(H)
PB:360mVp-p(H)
IC201 $• REC/PB
REC:320mVp-p(H)
PB:270mVp-p(H)
REC:330mVp-p(H)
PB:400mVp-p(H)
IC201 $™ REC/PB
528mVp-p(H)
IC201 @• REC
576mVp-p(H)
IC201 !∞ PB
310mVp-p(H)
IC201 !• REC/PB
340mVp-p(H)
IC201 !¢ REC
MA-325 BOARD (2/5)
(SEE PAGE 4-11)
5 7 4042
348
NTH
12
CLK
10
1H
DL
YNRLPF
DL EQBPF1
SUB
LPF
DEM
DOUB
LIM
FM
AGC
1/2
BUFFER
SUB
CONV
SUB
BPF
KIL
C LPF
SEQ
PB EQ
ACC
DET
1H/2H
DL
BUFFER
13 52
BUFFER
BUFFER
150
25
26
23
45
37
33
38
18
16
10
9
29
7
8
19
20
60
43
63
64
62
65
46
59
55
56
DE
EMH
CLP
DE
EMPH
TRAP
SW
SW
SW
CLP
LPF
KIL
B.D.
NAP
BPF
REC
BGA
PB
BGA-B
SW
NL
DE-EM
DHP
NC
PIC
CTL
C
NC
SYNC
SEP
QV/QH
INS
VIDEO
AMP
BUFFER
CLP
SYNC
SEP
FBC
34 35
VIDEO
AGC
Y/C
MIX
FM
MOD
REC
EQ
BUFFER
IC202
CCD DELAY
IC401
OSD
17
1416
15
20
18
66
28
30
32
ACC
AMP
BPF2
MAIN
CONV
+
Q203
S
N
Q208
Q204
Q201
X202
3.58MHz
X201
4.43MHz
COMB
CTH
R
P
S
N
R
P
R
P
PB RF
REC RF
C ROT
COMP SYNC
VIDEO 1
(SEE PAGE 3-4)
Q202
C ROT
IC201 (1/2)
Y/C PROCESS
P
R
P
R
NT
Q211
Q210
Q205
Q209
Q206
P
R
R
P
2
3
X401
17.734475MHz
5
6
X402
14.31818MHz
15
28 27
Q403, 404
BUFFER
Q401
BUFFER
Q901
Q402
SW5V
CT401
VCO ADJ
VCO
OUT
VCO
IN
CV IN
S IN
S CLK
CV OUT
SYNC DET
V SYNC OUT
CS
XTAL OUT1
XTAL OUT2
XTAL IN2
XTAL IN1
CV CR
SYNC IN
RESET
VCLK (IIC)
VSDATA (IIC)
VCLK (IIC)
VSDATA (IIC)
NT_JUDGE
MESCAM DET
ACK OUT
MESCAM DET OUT
COMP SYNC
QVD
S1 TU SEL
SI
S CLK
MOD V
SYSTEM
CONTROL
(SEE PAGE 3-8)
TUNER
(SEE PAGE 3-11)
MODE
CONTROL
(SEE PAGE 3-14)
5 5
CN480
CN423
5 5
CN951
CN901
CN952
CN361
JS954
SAT/DEC V
L2 VIDEO
JS210
JS209
TU V
ED8/EZ9
EZ8NZ
10
15
26
CN105
H DET
CG V
OSD CS
VIDEO
LINE-1
OUT
CNJ901
VIDEO
LINE-2
IN
CNJ480
VIDEO
OUT
IN
LINE-3
IN
(SAT IN)
CNJ952
CNJ954
SAT DEC
VIDEO
LINE-1
IN
CNJ901
5 1
IO-64 BOARD (1/2)
(SEE PAGE 4-30)
RJ-79 BOARD (1/3)
(SEE PAGE 4-31)
1 3
7
IC203
VIDEO INPUT SELECT
IC702
VIDEO BUFFER
BUFFER
Q901
ED8/EZ9
ED8NZ
EZ8AS
1
2
3
TU VIDEO
TUNER
(SEE PAGE 3-11)
P
R
05
SLV-ED8/EZ8/EZ9
3-8
3-4. SERVO/SYSTEM CONTROL BLOCK DIAGRAM
3-7
MA-325 BOARD (3/5)
(SEE PAGE 4-15,4-17)
CN101
MTR 12V
DRUM VS
DRUM PG
DRUM FG
1
2
3
4
OUTPUT
DRIVER
OUTPUT
DRIVER
HALL
DEVICE
MATRIX
M
MTR 12V
SW 5V
CTL-REF
CAP FG
MTR 12V
CAP VS
CAP RVS
CAP TRQ PWM
HALL
DEVICE
CAPSTAN
FG
CN102
1
4
3
7
5
2
6
U+
REF
VM
VS
FRC
TL
VCC
U–
V+
V–
W+
W–
U
V
W
PG
FG
M901
DRUM MOTOR
M902
CAPSTAN
MOTOR
+
–
+
–
DRUM DA
68
DRUM PG
69
DRUM FG
73
35
99
STEP PLS
72
CAP RVS
84
CAP TRQ PWM
60
F ENV
RF ENV
70
CAP FG
7
REC CTL
77
REC COUNT
8
CTL RESET
67
92
CTLHYS HIGH
15
C IN (REC PRF)
XTAL
EXTAL
DRUM ERROR
INTEGRATOR
(1/2)
IC101
SERVO/SYSTEM
CONTROL
IC161
7
6
5
CAP ERROR
INTEGRATOR
(2/2)
IC101
1
3
2
+
–
+
–
CTL AMP
CAM (+)
CAM (+)
CAM (–)
(2/2)
(1/2)
IC021
REF AMP
IC001
CAM MOTOR DRIVE
IC130
COMPARATOR
IC001
1
7
6
5
31
3
2
SW5V
SW5V
MTR 12V
D141
+
PS100
3
1
CN161
1
2
3
CN103
+
GAIN
SW
43
CAM
9
MODE1
22
MODE 2
21
MODE 3
20
MODE 4
19
42
D5V
Q001
CTL CHECK
S101
REC PRF
X161
16MHz
CTL
HEAD
CTL (X)
CTL (Y)
M
CAM+
CAM–
MODE SWITCH
10
2
3
IN2
IN1
4
MECHA
POSITION
S100
CAM ENCODER
M903
CAM MOTOR
81
SCK I (SSB)
SCKI
80
SO I (SSB)
SOI
46
SI 0
SO
44
ASURA CS
40
ASURA RESET
SCLK
SD 0
1
RF SWP
RE SWP
45
SI
SI
47
SCLK
S CLK
13
NT JUDGE
NT JUDGE
14
MESECAM DET
MESECAM DET
66
COMP SYNC
V SYNC
4
QVD
QVD
93
SI TU SEL
IN SELI
30
V CLK (IIC)
SCL 0 (I2C)
28
VS DATA (IIC)
SDA 0 (I2C)
2
96
AF REC
AF REC
59
AF ENV
AF ENV
DATA (IIC)
CLOCK (IIC)
100
AF SWP
AF SWP
31
A MUTE
A MUTE
36
56
AV ADJ
55
S151
NT PB SW
61
D102
T/S LED
Q101
T. SENS
Q100
T. SENS
T SENS
32
T/S LED
64
PH100
T. REEL
T REEL FG
25
7
8
5
24
CN105
62
S SENS
LED
DRIVE
Q111
SW12V
63
PH101
S. REEL
S REEL FG
JS161
JS162
SWP ADJ
ON PAL TV
NTSC 4.43 NTSC PB
NTSC 3.58
MODE
CONTROL
(SEE PAGE 3-14)
VIDEO 1
(SEE PAGE 3-4)
VIDEO 2
(SEE PAGE 3-6)
AUDIO
(SEE PAGE 3-10)
74
VCC
ASURA CS
ASURA RESET
AF REC P
AF REC P
FULL ERASE FULL ERASE
PB CTL
CAP DA
CAP STOP
05
IC161 $£ REC/PB
2.4Vp-p (16MHz)
IC161 7REC
5.0Vp-p (2V)
IC161 &º REC/PB
5.1Vp-p (757.6Hz)
IC161 ^ªREC/PB
5.0Vp-p (300Hz)
IC161 1REC/PB
5.1Vp-p (2V)
IC161 ^•REC/PB
5.3Vp-p (2V)
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