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– 2 –

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.

COMPONENTS  IDENTIFIED  BY  MARK 

 OR  DOTTED

LINE  WITH  MARK 

 ON  THE  SCHEMATIC  DIAGRAMS

– 3 –

Section

Title

Page

Section

Title

Page

Feature Difference ................................................................... 3
SERVICE NOTE ....................................................................... 5

Getting Started .............................................................. 1-1
Basic Operations ........................................................... 1-8
Search Operations ......................................................... 1-12
Additional Operations .................................................... 1-14
Additional Information .................................................... 1-16

2-1.

Case Front Panel Block Assembly ................................ 2-1

2-2.

DM-98 and FJ-33 Board ................................................ 2-1

2-3.

Rear Panel ..................................................................... 2-2

2-4.

MA-402 Board ................................................................ 2-2

2-5.

Mechanism Deck ........................................................... 2-3

2-6.

Internal Views ................................................................ 2-4

2-7.

Circuit Boards Location ................................................. 2-5E

3-1.

Overall Block Diagram ................................................... 3-1

3-2.

Video Block Diagram ..................................................... 3-3

3-3.

Servo/System Control Block Diagram .......................... 3-5

3-4.

Audio Block Diagram ..................................................... 3-7

3-5.

Tuner Block Diagram ..................................................... 3-9

3-6.

Mode Control Block Diagram ........................................ 3-11

3-7.

Power Block Diagram .................................................... 3-13

4-1.

Frame Schematic Diagram ............................................ 4-3

4-2.

Printed Wiring Boards and Schematic Diagrams ......... 4-5
•

MA-402 Printed Wiring Board .................................. 4-5

•

MA-402 (Video, Audio) Schematic Diagram ............ 4-9

•

MA-402 (System Control) Schematic Diagram ....... 4-13

•

MA-402 (Servo Control) Schematic Diagram .......... 4-17

•

MA-402 (Hi-Fi Audio) Schematic Diagram .............. 4-19

•

MA-402 (Tuner) Schematic Diagram ....................... 4-21

•

MA-402 (I/O) Schematic Diagram ........................... 4-23

•

MA-402 (Mode Control) Schematic Diagram .......... 4-25

•

MA-402 (Power Supply) Schematic Diagram .......... 4-27

•

GK-12 Printed Wiring Board and
Schematic Diagram .................................................. 4-29

•

NK-11 Printed Wiring Board and
Schematic Diagram .................................................. 4-31

•

FJ-33 Printed Wiring Board and
Schematic Diagram .................................................. 4-33

•

DM-98 Printed Wiring Board and
Schematic Diagram .................................................. 4-34E

5-1.

System Control-Video Block Interface
(MA-402 BOARD IC101) ............................................... 5-1

5-2.

System Control-Servo Peripheral Circuit Interface
(MA-402 BOARD IC101) ............................................... 5-1

5-3.

System Control-Mechanism Block Interface
(MA-402 BOARD IC101) ............................................... 5-2

5-4.

System Control-Audio Block Interface
(MA-402 BOARD IC101) ............................................... 5-3

5-5.

Servo/System Control,
OSD Microprocessor Pin Function
(MA-402 BOARD IC101) ............................................... 5-4

5-6.

NICAM Processor Pin Function
(NK-11 BOARD IC1) ...................................................... 5-5E

..................................................... 6-1E

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. Alingment Tapes ....................................................... 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
2-3. 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. Tuner System Adjustment ............................................. 7-5
2-5-1. Separation Adjustment ............................................. 7-5
2-6. Parts Arrangement Diagram for Adjustments .............. 7-6E

8-1.

Exploded Views ............................................................. 8-1

8-1-1. Front Panel and Upper Case Section ...................... 8-1
8-1-2. Chassis Section ........................................................ 8-3
8-1-3. Mechanism Deck Section-1 ..................................... 8-5
8-1-4. Mechanism Deck Section-2 ..................................... 8-6
8-1-5. Mechanism Deck Section-3 ..................................... 8-7

8-2.

Electrical Parts List ........................................................ 8-8

– 4 –

• 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)

Front Panel

Section

(Page 2-1)

Pinch Press

Block Ass’y

(Page 14)

Ground Shaft

Ass’y

(Page 13)

Mechanism

Deck

(Page 2-3)

FL Complete

 Ass’y

(Page 13)

Drum
Ass’y

(Page 13)

Rear

Panel

(Page 2-2)

Rubber

Belt

(Page 15)

Rubber

Belt

(Page 15)

Slider

(Page 26)

Loading

Gear (T, S)

(Page 28)

Retainer

 Plate

(Page 22)

Rubber

Belt

(Page 15)

Capstan

Motor

(Page 15)

FL Slider

 Block Ass’y

(Page 22)

Pully Gear

Ass’y

(Page 29)

Cam Motor

Retainer

(Page 31)

Cam Gear

(Page 23)

Cam Motor

(Page 31)

Reel Direct

Ass’y

(Page 30)

MA-402

Board

(Page 2-2)

Rotary
Switch

(Page 2-3)

Tuner

Unit

5

Getting Started

Insert two R6 (size AA) batteries by
matching the + and – on the batteries
to the diagram inside the battery
compartment.

Insert the negative (–) end first, then
push in and down until the positive
(+) end clicks into position.

You can use this remote
commander to operate this
VCR and a Sony TV. Buttons
on the remote commander
marked with a dot (•) can be
used to operate your Sony TV.
If the TV does not have the 

g

symbol near the remote sensor,
this remote commander will
not operate the TV.

the VCR

a Sony TV

VIDEO  and point at the remote sensor on the VCR

TV and point at the remote sensor on the TV

Getting Started

6

Notes
• The TV/VIDEO button selects the TV’s input source (either aerial in or line in). The

button does not control this VCR.

• With normal use, the batteries should last about three to six months.
• If you do not use the remote commander for an extended period of time, remove

the batteries to avoid possible damage from battery leakage.

• Do not use a new battery with an old one.
• Do not use different types of batteries.

The remote commander is preprogrammed to control non-Sony TVs. If your
TV is listed in the table below, set the appropriate manufacturer’s code
number.

Set 

TV/VIDEO

 at the top of the remote commander to 

TV

.

Hold down ?/1, and enter your TV’s code number(s) using the
programme number buttons. Then release ?/1.

Now you can use the ?/1, VOL +/–, PROG +/–, programme number
buttons, ? (ten’s digit) and TV/VIDEO buttons to control your TV. You
can also use the buttons marked with a dot (•) to control a Sony TV. To
control the VCR, reset 

TV/VIDEO

 to 

VIDEO

.

If more than one code number is listed, try entering them one at a time until
you find the one that works with your TV.

Sony

01*

1

,02

Akai

68

Blaupunkt

10

Ferguson

52

Grundig

11*

1

Hitachi

24

ITT/Nokia

15,16,69*

3

JVC

33*

Loewe

45

Mivar

09, 70

NEC

66

Panasonic

17*

1

,49

Philips

06*

1

,07*

1

,08*

1

Saba

12,13

Samsung

22,23

Sanyo

25

Sharp

29

Telefunken

36

Thomson

43*

2

Toshiba

38

7

Getting Started

Notes
• If the TV uses a different remote control system from the one programmed to work

with the VCR, you cannot control your TV with the remote commander.

• You may not be able to use some buttons to control non-Sony TVs due to the remote

commander’s signal limitations.

• If you enter a new code number, the code number previously entered will be erased.
• When you replace the batteries of the remote commander, the code number may

automatically reset to 01 (Sony). If your TV is not a Sony, it is recommended to
manually set the appropriate code number every time you replace the batteries.

• If you set your TV’s code number correctly while the TV is turned on, the TV turns

off automatically.

This section is a translated
version of Instruction Manual
SLV-LF1AS model.
Part number: 3-067-158-11

Getting Started

8

Disconnect the aerial cable from your TV
and connect it to AERIAL IN on the rear
panel of the VCR.

Connect AERIAL OUT of the VCR and
the aerial input of your TV using the
supplied aerial cable.

Connect the mains lead to the mains.

If the 3-pin plug does not fit into the mains outlet, detach the plug
by loosening the screw, then use the 2-pin plug inside.

Connect the aerial to your VCR and TV as shown below to watch TV
programmes and VCR pictures on your TV. In addition, if your TV has
audio/video (A/V) input jacks, we recommend you connect the VCR to
your TV using an audio/video cable to get a better picture and sound.

OUT

IN

AERIAL

IN

OUT

AERIAL

1-1