Sony Slv-ed8kr User manual

MICROFILM

SERVICE MANUAL

Korean Model

SLV-ED8KR/ED9KR

RMT-V244/V246

SPECIFICATIONS

G

• Refer to the SERVICE MANUAL of VHS MECHANICAL

ADJUSTMENTS VI for MECHANICAL ADJUSTMENTS.

(9-921-647-11)

* The abbreviations of ED8 and ED9 contained in this service manual are indi-

cated when these models are common to all their corresponding models as

given below.

Photo: SLV-ED8KR S MECHANISM

ED8KR

ED8

Abbreviated

model name

All model

names

SLV- ED9KR

ED9

VIDEO CASSETTE RECORDER

– Continued on next page –

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

– 2 –

SAFETY CHECK-OUT

1. Check the area of your repair for unsoldered or poorly-sol-

dered 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 transis-

tors, 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 recom-

mend 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 PUB-

LISHED BY SONY.

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

– 3 –

TABLE OF CONTENTS

Section Title Page Section Title Page

SERVICE NOTE ...................................................................... 4

1. GENERAL

Getting Started .............................................................. 1-1

Basic Operations ........................................................... 1-5

Additional Operations.................................................... 1-8

Editing............................................................................ 1-11

Additional Information ................................................... 1-12

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 (ED9).............................................................. 2-2

2-6. Control Switch Block Removal (ED9) ........................... 2-2

2-7. FR-137, DM-77, IO-64 Board Removal (ED8) ............. 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) , RJ-79 Schematic Diagrams and

RJ-79 Printed Wiring Board .......................................... 4-25

MA-325 (Tuner) Schematic Diagram ............................ 4-27

NK-11 Printed Wiring Board and

Schematic Diagram ....................................................... 4-29

DM-77, IO-64 Printed Wiring Boards and

Schematic Diagrams ..................................................... 4-31

FR-137, SW-307 Printed Wiring Boards....................... 4-33

FR-137, SW-307 Schematic Diagram .......................... 4-35

PS-414 Printed Wiring Board........................................ 4-37

PS-414 Schematic Diagram.......................................... 4-39

SR-718 Printed Wiring Board ....................................... 4-41

SR-718 Schematic Diagram ......................................... 4-43

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 Block 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. KOREAN Processor Pin Function

(NK-11 board IC1) ......................................................... 5-6

6. ERROR CODE.......................................................... 6-1

7. ADJUSTMENTS

7-1. Mechanical Adjustments ............................................... 7-1

7-2. Adjustments................................................................... 7-1

2-1. EEP ROM Initial Data Input .......................................... 7-1

7-3. Electrical Adjustments................................................... 7-1

3-1. Pre-Adjustment Preparations........................................ 7-1

3-1-1. Instruments to be Used............................................ 7-1

3-1-2. Connection ............................................................... 7-1

3-1-3. Set-up of Adjustment ............................................... 7-2

3-1-4. Alignment Tapes ....................................................... 7-2

3-1-5. Specified I/O Level and Impedance

Input/Output Terminal ............................................... 7-2

3-1-6. Adjusting Sequence ................................................. 7-2

3-2. Power Supply Adjustment ............................................. 7-2

3-2-1. Power Supply Check ................................................ 7-2

3-2-2. +6 V Adjustment ....................................................... 7-2

3-3. Servo System Adjustment............................................. 7-3

3-3-1. RF Switching Position Adjustment ........................... 7-3

3-4. Audio System Adjustments ........................................... 7-3

3-4-1. Hi-Fi Audio System Adjustment ............................... 7-3

1. AF Switching Position Adjustment ........................... 7-3

2. Frequency Response Check.................................... 7-4

3. Overall Level Characteristic and

Distortion Factor Check ........................................... 7-4

4. Overall S/N Check.................................................... 7-4

3-4-2. Normal Audio System Adjustment ........................... 7-5

1. ACE Head Adjustment ............................................. 7-5

2. E-E Output Level Check........................................... 7-5

3. Frequency Responce Check.................................... 7-5

4. Overall Level Characteristic and Distortion

Factor Check ............................................................ 7-5

5. Overall S/N Check.................................................... 7-5

3-5. Video System Adjustment ............................................. 7-5

3-5-1. VCO Oscillation Frequency Adjustment .................. 7-5

3-6. 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)............ 8-1

8-1-2. Front Panel and Cabinet Assemblies (ED9)............ 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

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

– 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

(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

(ED9)

(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 (ED9)

(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)

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-1

SECTION 1

GENERAL Thissection is extractedfrom SLV-ED8KR

instruction manual (3-861-812-11).

SLV-ED8/ED9

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-2

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-3

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-4

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-5

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-6

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-7

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-8

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-9

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-10

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-11

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-12

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

1-13

1-13 E

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

2-1

Note: Follow the disassembly procedure in the numerical order given.

SECTION 2

DISASSEMBLY

2-1. UPPER CASE REMOVAL 2-3. REAR PANEL REMOVAL

2-2. RJ-79, NK-11 BOARD REMOVAL 2-4. FRONT PANEL SECTION REMOVAL

SLV-ED8/ED9

1Two tapping screws

2Two tapping screws

3Upper case

5NK-11 board

1Two connectors

(CN951, 952)

4Connector

(CN751)

3RJ-79 board

2Four screws

(BVTP3 ×12)

3Harness

5Two claws

4Three claws

6Claw

7Claw

8Rear panel

2Connector

(CN361)

1Two connectors

(CN101, 901)

1Connector

(CN423)

2Flat cable

(CN105)

3Two claws

4Claw

5Three claws

6Front panel section

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

2-2

2-5. FR-137, DM-77, SW-307, IO-64 BOARD

REMOVAL (ED9)

2-8. MECHANISM DECK REMOVAL

2-6. CONTROL SWITCH BLOCK REMOVAL

(ED9)

2-7. FR-137, DM-77, IO-64 BOARD

REMOVAL (ED8)

8DM-77 board

!™ IO-64

board

1Flat cable

(CN309)

5Flat cable

(CN308)

9Flexible board

(CN451)

6Flexible board

(CN302)

7Four screws

(B2.6 ×8)

3Four screws

(B2.6 ×8) 2Screw

(B2.6 ×8)

4FR-137 board

!¡ SW-307 board

0Two screws

(B2.6 ×8)

5Control switch block

2Damper holder

4Fulcrum plate

(right) assembly

1Two screws

(B2.6 ×8)

3Screw

(B2.6 ×8)

8IO-64 board

4Flexible board

(CN451)

2Four screws

(B2.6 ×8)

1Nine screws

(B2.6 ×8)

3FR-137 board

5Connector

(CN307)

6DM-77 board

7Screw

(B2.6 ×8)

1Flexible board

5Screw

(BVTP3 ×12)

4Screw

(B3)

6Two screws

(BVTP3 ×12)

7Mechanism deck

3Connector

(FE head)

2Connector

(ACE head)

Note: When mounting the mechanism deck,

first align ¢mark on the rotary switch.

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

2-3

2-9. POWER BLOCK REMOVAL

2-10. PS-414, MA-325 BOARD REMOVAL

1Power cord

3Power block

2Two screws

(B3)

6MA-325 board

3PS-414 board

2Three screws

(B3)

4Screw

(B3)

1Connector

(CN162)

5Three screws

(B3)

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

Sony SLV-ED8KR User manual

Popular VCR System manuals by other brands