Sony SLV-KS1 Service Manual ▷ View online
SERVICE MANUAL
VIDEO CASSETTE RECORDER
SLV-KS1
RMT-V301
SPECIFICATIONS
US Model
Canadian Model
Mexican Model
• Refer to the SERVICE MANUAL of VHS MECHANICAL
ADJUSTMENTS
VI
for MECHANICAL ADJUSTMENTS.
(9-921-647-11)
S MECHANISM
System
Format
VHS NTSC standard
Video recording system
Rotary head helical scanning
FM system
FM system
Video heads
Double azimuth four heads
Video signal
NTSC color, EIA standards
General
Power requirements
120 V AC, 60 Hz
Power consumption
18 W (Mexican)
24 W (US, Canadian)
Operating temperature
5˚C to 40˚C (41˚F to 104˚F)
Dimensions
Approx. 355
×
96
×
285.5 mm
(w/h/d)
(Approx. 14
(Approx. 14
×
3
7
/
8
×
11
1
/
4
inches) including projecting
parts and controls
parts and controls
Mass
Approx. 3.6 kg (7lb 15oz)
Supplied accessories
Remote control (1)
Size AA (R6) batteries (2)
Audio/video cable (3-phono to 3-phono) (1)
Size AA (R6) batteries (2)
Audio/video cable (3-phono to 3-phono) (1)
Design and specifications are subject to change without
notice.
notice.
– 2 –
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground
and from all exposed metal parts to any exposed metal part having
a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
a return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers' instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2V AC range are suit-
able. (See Fig. A)
tion is 0.75V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2V AC range are suit-
able. (See Fig. A)
Fig. A
Using AC voltmeter to check AC leakage
1.5 k
Ω
0.15
µ
F
AC
Voltmeter
(0.75 V)
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
1. Check the area of your repair for unsoldered or poorly-sol-
dered connections. Check the entire board surface for solder
splashes and bridges.
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.
out to the customer and recommend their replacement.
4. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and recom-
mend their replacement.
mend their replacement.
5. Check the line cord for cracks and abrasion. Recommend the
replacement of any such line cord to the customer.
6. Check the B+ voltage to see it is at the values specified.
7. Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
Check leakage as described below.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
safety checks before releasing the set to the customer:
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
0
OR DOTTED
LINE WITH MARK
0
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.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
– 3 –
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
SERVICE NOTE ...................................................................... 4
1.
GENERAL
Play Timer ...................................................................... 1-1
Cassette Door Lock (Safety Lock) ................................ 1-1
Recording and Tape Speed Buttons ............................. 1-1
Connections .................................................................. 1-2
Cassette Door Lock (Safety Lock) ................................ 1-1
Recording and Tape Speed Buttons ............................. 1-1
Connections .................................................................. 1-2
2.
DISASSEMBLY
2-1.
Upper Case Removal .................................................... 2-1
2-2.
Front Panel Section Removal ....................................... 2-1
2-3.
Rear Panel (M) Removal .............................................. 2-1
2-4.
Mechanism Deck Removal ........................................... 2-1
2-5.
MA-370 Board Removal ................................................ 2-2
2-6.
Internal Views ................................................................ 2-3
2-7.
Circuit Boards Location ................................................. 2-4
3.
BLOCK DIAGRAMS
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.
Power Block Diagram .................................................... 3-9
4.
PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
SCHEMATIC DIAGRAMS
4-1.
Frame Schematic Diagram ........................................... 4-3
4-2.
Printed Wiring Boards and Schematic Diagrams ......... 4-5
MA-370 Printed Wiring Board ....................................... 4-5
MA-370 (Head Amp) Schematic Diagram .................... 4-7
MA-370 (Video, Audio) Schematic Diagram ................. 4-9
MA-370 (Servo/System Control)
Schematic Diagram ....................................................... 4-13
MA-370/QP-1 (Kids Sound) Printed Wiring Board
and Schematic Diagram ................................................ 4-17
MA-370 (Mode Control) Schematic Diagram ............... 4-19
MA-370 (Power Supply) Schematic Diagram ............... 4-21
MA-370 Printed Wiring Board ....................................... 4-5
MA-370 (Head Amp) Schematic Diagram .................... 4-7
MA-370 (Video, Audio) Schematic Diagram ................. 4-9
MA-370 (Servo/System Control)
Schematic Diagram ....................................................... 4-13
MA-370/QP-1 (Kids Sound) Printed Wiring Board
and Schematic Diagram ................................................ 4-17
MA-370 (Mode Control) Schematic Diagram ............... 4-19
MA-370 (Power Supply) Schematic Diagram ............... 4-21
5.
INTERFACE, IC PIN FUNCTION DESCRIPTION
5-1.
System Control-Video/RP Block Interface
(MA-370 BOARD IC160) ............................................... 5-1
(MA-370 BOARD IC160) ............................................... 5-1
5-2.
System Control-Servo Peripheral Circuit Interface
(MA-370 BOARD IC160) ............................................... 5-1
(MA-370 BOARD IC160) ............................................... 5-1
5-3.
System Control-Mechanism Block Interface
(MA-370 BOARD IC160) ............................................... 5-2
(MA-370 BOARD IC160) ............................................... 5-2
5-4.
System Control-System Control Peripheral
Circuit Interface (MA-370 BOARD IC160) .................... 5-3
Circuit Interface (MA-370 BOARD IC160) .................... 5-3
5-5.
System Control-Audio Block Interface
(MA-370 BOARD IC160) ............................................... 5-3
(MA-370 BOARD IC160) ............................................... 5-3
5-6.
Servo/System Control Microprocessor Pin Function
(MA-370 BOARD IC160) ............................................... 5-4
(MA-370 BOARD IC160) ............................................... 5-4
6.
ADJUSTMENTS
6-1.
Mechanical Adjustments ............................................... 6-1
6-2.
Electrical Adjustments ................................................... 6-1
2-1.
Pre-Adjustment Preparations ........................................ 6-1
2-1-1. Instruments to be Used ............................................ 6-1
2-1-2. Connection ............................................................... 6-1
2-1-3. Set-up of Adjustment ................................................ 6-1
2-1-4. Alignment Tapes ....................................................... 6-1
2-1-5. Specified I/O Level and Impedance
2-1-2. Connection ............................................................... 6-1
2-1-3. Set-up of Adjustment ................................................ 6-1
2-1-4. Alignment Tapes ....................................................... 6-1
2-1-5. Specified I/O Level and Impedance
input/output terminal ................................................ 6-1
2-1-6. Adjusting Sequence ................................................. 6-2
2-2.
Power Supply Adjustment ............................................. 6-2
2-2-1. Power Supply Check ................................................ 6-2
2-3.
Servo System Adjustment ............................................. 6-2
2-3-1. RF Switching Position Adjustment ........................... 6-2
2-4.
Audio System Adjustments ........................................... 6-3
2-4-1. Normal Audio System Adjustment ........................... 6-3
1.
1.
ACE Head Adjustment .................................................. 6-3
2.
E-E Output Level Check ............................................... 6-3
3.
Frequency Response Check ......................................... 6-3
2-5.
Parts Arrangement Diagram for Adjustments ............... 6-4
7.
REPAIR PARTS LIST
7-1.
Exploded Views ............................................................. 7-1
7-1-1. Front Panel and Chassis Assembly ......................... 7-1
7-1-2. Mechanism Chassis Assembly (1) ........................... 7-2
7-1-3. Mechanism Chassis Assembly (2) ........................... 7-3
7-1-4. Mechanism Chassis Assembly (3) ........................... 7-4
7-1-2. Mechanism Chassis Assembly (1) ........................... 7-2
7-1-3. Mechanism Chassis Assembly (2) ........................... 7-3
7-1-4. Mechanism Chassis Assembly (3) ........................... 7-4
7-2.
Electrical Parts List ........................................................ 7-5
– 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.
Pages in indicated pages in the VHS MECHANICAL ADJUSTMENT MANUAL VI.
Set
Upper Case
(Page 2-1)
(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 2-1)
FL Complete
Ass’y
(Page 13)
Drum
Ass’y
Ass’y
(Page 13)
Rear Panel
(M)
(Page 2-1)
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-370
Board
(Page 2-2)
Rotary
Switch
Switch
(Page 2-1)
Tuner
Unit