Samsung SV-7000W, SV-5000W-XAA Troubleshooting

CHECK

AL 5.8V AT PIN

17 OF PT01

CHECK

AL 15 AT PIN

19 OF PT01

CHECK

AL 9V AT PIN

21 OF PT01

CHECK

AL 38V AT PIN

20 OF PT01

CHECK AND CHANGE

D33, C34, L33, C35

CHECK AND CHANGE

L31, D32, C32, L32, C33

CHECK AND CHANGE

L30, D31, C31

CHECK AND CHANGE

D30, C30

A

NO

YES

Samsung Electronics 5-1

5. Troubleshooting

S.M.P.S.

INOPERATIVE

CHECK

AC CORD

CHECK

VOLTAGES AT PINS

2,6,8,10

OF PT01

CHECK

VOLTAGES

AT PIN 2 OF

PT1SD1

CHECK

VOLTAGES AT

IC01

CHECK R10

AND SECOND CIRCUITS

CHECK AND CHANGE

R10, R11, R12, R13, R14,

D10, R17

CHECK AND CHANGE

D01, D02, D03, D04, D05,

F01

CHANGE AC CORD

A

NO

YES

NO

YES

Alignment and Adjustment

5-2 Samsung Electronics

LOAD A TAPE AND

PRESS PLAY BUTTON

TURN VCR POWER ON

MECHANISM DOESN'T

OPERATE IN PLAY MODE

TAPE LOADING

OPERATION

(LOAD)

IC601-38:HIGH

IC601-39:LOW

(END SENSOR)

IC601-76

CYLINDER

ROTATION

NTSC : SW 30Hz

PAL : SW 25Hz

IC601-24

CYL FG.PG

IC601-96.97

SEE

(CYLINDER DOES

NOT ROTATE)

CHECK

START/END SENSOR

IC601

NO NO

NO

LOW

YES

HIGH

YES

CHECK TAPE

CHECK IC602

B

PLAY MODE

INOPERATIVE

EE-VIDEO

INSERT THE CASETTE

TAPE RECORDED BY

ANOTHER VCR AND

PRESS PLAY BUTTON

PLAY

INDICATOR

IN THE DISPLAY

PRESS PLAY KEY

IN REMOTE

CONTROL

MECHANISM

OPERATION

SEE (PB VIDEO) AUDIO MISSING

IN PLAY MODE

SEE

(MECHANISM DOES NOT

OPERATE IN PLAY MODE)

CHECK TIMER

CHECK

IC601, XT602

SEE

VIDEO MISSING

IN EE MODE

NO

NO NO

YES

NO

PB-VIDEO

SEE

VIDEO MISSING

IN PLAY MODE

NO

YES

DOES NOT OPERATE

OR OPERATES

BUT STOP SOON

YES

Alignment and Adjustment

Samsung Electronics 5-3

RECORD MODE

DOESN'T OPERATE

PLAY

OPERATION

LOAD VCR WITH A

BLANK TAPE AND

PRESS RECORD BUTTON

REC MODE

SAFETY TAB

D-REC A (H)

IC601-1

FULL ERASE (H)

IC601-68

SEE

(AUDIO MISSING IN

RECORD MODE)

CHANGE RS601

CHECK IC601

CHANGE TAPE

SEE

(PLAY MODE

DOESN'T OPERATE)

EJECT NO

YES

NO

REC-VIDEO

SEE

(VIDEO MISSING IN

RECORD MODE)

NO

YES

CAPSTAN

ROTATION

(S.T REEL)

IC601-98.99

PROG.SW STATE

IC601-63.64.65

CHANGE IC601

CHECK

LOADING MOTOR

MECHANISM OR SW601

TAKE UP REEL SENSOR

SUPPLY REEL SENSOR

(PT601.PT602)

SEE

(CAPSTAN DOES NOT

ROTATE)

B

NO

DC

STOP MODE

YES

PULSE

YES

Alignment and Adjustment

5-4 Samsung Electronics

LOAD A TAPE

REWIND DOESN'T

OPERATE

F.FWD

OPERATION

PRESS REWIND

BUTTON

REW

INDICATOR IN

THE DISPLAY

PRESS REW

KEY IN REMOTE

CONTROL

MECHANISM

STATE

IC601-93.98.99

CHECK

MECHANISM

CHECK TIMER

CHECK

IC601. XT602

SEE

(FAST FORWARD

DOESN'T WORK)

NO NO

YES

STOP

DOES CAPSTAN

MOTOR

ROTATE?

CHECK

IC601-25

(CM F/R)

SEE

(MECHANISM DOES NOT

OPERATE IN PLAY MODE)

NO

YES

F.FWD

YES

LOAD TAPE AND

PRESS F.FWD BUTTON

FAST FORWARD

DOESN'T OPERATE

F.FWD

INDICATOR IN

THE DISPLAY

PRESS FF

KEY IN REMOTE

CONTROL

MECHANISM

STATE

IC601-93.98.99

CHECK

MECHANISM

CHECK TIMER

CHANGE IC601, XT602

NO NO

YES

STOP

CAPSTAN MOTOR

ROTATION

SEE

(CAPSTAN DOES NOT

ROTATE)

SEE

(MECHANISM DOES NOT

OPERATE IN PLAY MODE)

STOP

YES

F.FWD

ROTATE

Alignment and Adjustment

Samsung Electronics 5-5

REV. SEARCH DOESN'T

OPERATE

PLAY

OPERATION

PRESS REWIND BUTTON

FOR REV. SEARCH

CHECK CAP F/R LINE

IS CAPSTAN

SPEED CHANGED?

SEARCH

OPERATION

FWD SEARCH

END

CHECK IC601

CHANGE DECK

CHANGE IC601

SEE

(PLAY

DOESN'T OPERATE)

NO

(PLAY MODE)

NO

YES

NO

CAP F/R

IC601-25

NO

(SEARCH MODE)

YES

NO

LOW

CHECK IC601

CHECK CAPSTAN

MOTOR

NOISE BAR

LOCKING

ADJUST

A/CE HEAD

NO

(CONTROL PULSE)

IC601-89

NO

YES

FWD SEARCH DOESN'T

OPERATE

PLAY

OPERATION

PRESS F.FWD FOR

FORWARD SEARCH

CHECK IC601

CHECK CAPSTAN

MOTOR

IS CAPSTAN

SPEED CHANGED?

SEARCH

OPERATION

NOISE BAR

LOCKING

END

ADJUST

A/CE HEAD

CHANGE DECK

CHANGE IC601

SEE

(PLAY

DOESN'T OPERATE)

NO

YES

NO

(CONTROL PULSE)

IC601-89

NO

YES

Alignment and Adjustment

5-6 Samsung Electronics

PLACE VCR IN STOP

MODE

VIDEO MISSING IN

EE MODE

TUNER MODE

OPERATION

NO

(EE INPUT

SIGNAL)

IC301-34

TUNER AND

DEMODU-

LATOR

APPLY VIDEO SIGNAL

(1Vp-p) TO VIDEO INPUT

JACK AND SET TO LINE MODE

NOTE: Location 43 series-I/O PCB

Location 3 series-Main PCB

CHECK C4362

CHECK IC4362,

R4362

CHECK IC4304

SEE PAGE 5-10

(DIGITAL BLOCK

NOT OPERATE)

CHECK AND

REPLACE

IC301

CHECK

VIDEO OUT

LINE

NO

(VIDEO OUT)

IC301-32

NO

YES

NO NO

NO

VIDEO

IC4302 3~6

VIDEO

IC901-21

VIDEO

IC4305-7

VIDEO

IC4305-1

CHANGE

IC4305

CHECK

IC901

CHANGE

IC4302

VIDEO

IC4304-7

VIDEO

IC301-38

VIDEO

IC4301-7

NO

YES

TURN THE VCR

POWER ON AND

INSERT A TAPE

PRESS EJECT BUTTON

CASSETTE LOADING

MECHANISM

DOES NOT OPERATE

TAPE DETECTED

CST IN MODE

IC601-38:HIGH(5V)

IC601-39:LOW(0V)

CHANGE IC601

CHECK

START/END SENSOR

IC601

CHECK

LM B

+

LINE

CHANGE IC602

NO NO

YES

IC601-39:LOW(0V)

IC601-38:HIGH(5V)

IC602-5:HIGH(5V)

IC602-6:LOW(0V)

CHECK

CST LOADING

MECHANISM

YES

NO

IC602-8:10V

YES

NO

YES

Alignment and Adjustment

Samsung Electronics 5-7

VIDEO MISSING IN

PLAY MODE

VIDEO EE MODE

OPERATION

PLACE THE VCR PLAY MODE

CHANGE IC301 CHECK IC4304

CHECK

VIDEO HEAD

CHECK

Q303-E

CHECK

IC601-24

CHECK VIDEO

OUT LINE

SEE PAGE 5-6

(VIDEO MISSING IN

EE MODE)

NO

YES

NO

YES

VIDEO FM

IC301-74

VIDEO

IC301-20

VIDEO

IC301-29

VIDEO

IC4304-7

VIDEO

IC4306-5,6

NO

H'D SW

IC301-11

NO

YES

NO NO NO

CHECK IC4306

NOTE: Location 43 series-I/O PCB

Location 3, 6 series-Main PCB

VIDEO MISSING IN

RECORD MODE

PLACE THE VCR

RECORD MODE

VIDEO EE MODE

OPERATION

FM-VIDEO

IC301-12

FM-VIDEO

IC301-84.90

5V

IC301-30

CHECK VIDEO HEAD

CHECK IC601-68

CHANGE IC301

CHANGE

IC301

SEE PAGE 5-6

(VIDEO MISSING

IN EE MODE)

NO

NO YES

NO

YES

Alignment and Adjustment

5-8 Samsung Electronics

COLOR MISSING IN

PLAY MODE

FM-ENV

IC301-74

COLOR

IC301-59. 61

SW 25Hz

IC301-10

CHECK

XT3X1

XT302

XT3X2

CHANGE

IC301

CHECK IC601-29

CHANGE

XT3X1, XT3X2, XT302

CHECK Q308, C330, 328

SEE PAGE 5-7

(VIDEO MISSING IN

PLAY MODE)

NO

COLOR

IC301-71

NO

YES

NOTE: XT3X1 - 4.43MHz (PAL/PAL-N/SECAM/MESECAM/NT4.43

XT302 - Always (3.579545MHz)

XT3X2 - 3.575611MHz (PAL-M)

COLOR MISSING IN

RECORD MODE

(VIDEO IN)

RECORD MODE

COLOR

IC301-72

COLOR

IC301-71

CHANGE IC301

CHECK C304

CHANGE

XT3X1, XT3X2, XT302

CHECK

XT3X1

XT302

XT3X2

SEE PAGE 5-7

(VIDEO MISSING IN

RECORD MODE)

NO

YES

NO

YES

NO

YES

NOTE: XT3X1 - 4.43MHz (PAL/PAL-N/SECAM/MESECAM/NT4.43)

XT302 - Always (3.579545MHz)

XT3X2 - 3.575611MHz (PAL-M)

Alignment and Adjustment

Samsung Electronics 5-9

PLACE THE VCR IN STOP MODE

SELECT LINE MODE

WITHOUT INPUT SIGNAL

BLUE MISSING IN

STOP MODE

CHANGE

ICD6, LD2, CD64

CHECK

IC902-13 "L",

PIN15 5V

CHECK

ICD6-2 3.3V

CHECK

ICD2-30,

BLUE SIGNAL

CHECK ICD2

CHECK ICD3

NO

YES

CHECK

IC902 AL5V LINE

OSD PICTURE MISSING

XTAL IN

IC901-2

OSC IN

IC901-6

(STB, CLK, DATA)

IC901-9, 10, 11

CHANGE

IC901

CHECK IC601-6, 7, 8

CHECK L901, C903, C904

CHECK XT901, XT902

NO

YES

NO

YES

XTAL IN: 17.734476MHz (PAL/SECAM/PAL-N)

14.318MHz (NTSC/PAL-M/NT4.43)

OSC IN: 5~10MHz

Alignment and Adjustment

5-10 Samsung Electronics

ICD2-30

OUTPUT SIGNAL

ICD8-2

"H"

CHECK

ICD8, LD2, CD64, RD1

CHECK

ICD3-22

CHECK ICD2

APPLICATION CIRCUIT

CHECK ICD3

APPLICATION CIRCUIT

CHECK ICD3, RD9

ICD3-16

27MHz

ICD2-4

27MHz

ICD1-43

INPUT SIGNAL

ICD1-32

24, 6MHz

NO

YES

NO

YES

CHECK

XD1, ICD1, CD12-CD14

NO

CHECK

RD24, CD4

C

YES

DIGITAL BLOCK NOT

OPERATE

THROUGH MODE

OPERATE

ICD8-2 "L"

ICD8-7

OUTPUT SIGNAL

ICD5-3, 4

OUTPUT SIGNAL

CHECK

CD60, CD61, CND2

I/O BLOCK

CHECK ICD5

APPLICATION CIRCUIT

CHECK ICD8

APPLICATION CIRCUIT

CHECK D3-22

C

YES

ICD8-1

INPUT SIGNAL

NO

YES

NO

YES

CHECK I/O BLOCK

Alignment and Adjustment

Samsung Electronics 5-11

MISSING AUDIO

IC501-16.37

AUDIO SIGNAL

IC501-27

AUDIO FM

IC501-26

AUDIO FM

IC501-11.40

AUDIO SIGNAL

CHECK

CYLINDER

CHECK

IC501

CHECK

IC501-15.38

C508, C517 AND CHANGE IC501

CHECK

R504 AND CHANGE IC501

CHECK

C519, C505

CHECK

AUDIO MISSING

IN EE MODE

AUDIO MISSING IN

REC MODE

MONO

HIFI

MONO

NONO

YES

NO

YES

IC501-22.25:5V

CHECK

PC 5V LINE

NO

YES

PLACE VCR IN STOP

MODE

AUDIO MISSING IN

EE MODE

IC501-52,61

AUDIO SIGNAL

INPUT

INPUT SELECT

MODE

IC501-49, 63

AUDIO SIGNAL

INPUT

IC501-6, 44

AUDIO SIGNAL

INPUT

IC501-57

AUDIO SIGNAL

IC501-2, 48

AUDIO SIGNAL

INPUT

CHECK

R517, R518

R509, R510

CHECK

5V, 9V LINE

CHECK

IC601

CHECK

C524, C525

R514, R516

L1

L2

NO AV

NO

CHECK TM401

YES

H

NO

L

YES

LINE OUT

TUNER

YES

IC501-56.58

AUDIO SIGNAL

IC501-8

A. MUTE

IC501-5.45:1.9V

NO

CHECK

R521, R540

R522, R533

CHECK

R507, R508

R519, R520

CHECK

R501, R502,

R505, R506, MTS BLOCK

NO

YESNO

CHECK

C529

R406, R407

CHANGE

IC501

NO

TM401-2

AUDIO SIGNAL

D

YES

Alignment and Adjustment

5-12 Samsung Electronics

CHECK "AUDIO

MISSING IN EE MODE"

PLACE THE VCR IN PB MODE

CHANGE

IC501

AUDIO MISSING

IN PB MODE

CHECK

R3A10, C3A04 AND IC301-100

AUDIO SIGNAL

CHECK ACE HEAD

C3A15, C3A16, R3A06, R3A07,

R3A08 AND CHANGE IC301

AUDIO SELECT

IC501-18

AUDIO FM(MIXED)

CHECK

C3A17 AND CHANGE

IC301

CHECK

IC501-35(A.H D SW)

C514, C513, R503 AND

CHANGE CYLINDER OR

IC501

NO

HIFI

MONO

YES

IC304-1

AUDIO SIGNAL

IC301-3

DC:2.3V

NO

YES

CHECK

OSC BLOCK

CHECK

R3A04

CHECK

R3A37, R3A22, C3A02

R3A21, C3A07

CHECK

IC301

IC301-76

AUDIO SIGNAL

IC501-53

AUDIO SIGNAL

NO

CHECK Q3A06-BASE

REC "H"

CHECK

R3A32, R3A28

C3A24

YES

NO

YES

CHECK

IC301-77, C338, R326

AND CHANGE IC301

CHANGE IC501

IC301-96

AUDIO SIGNAL

IC301-98

AUDIO SIGNAL

IC301-7

AUDIO SIGNAL

IC301-6

MIX SIGNAL

(AUDIO

+

70KHz)

FL3A01-6

OSCILLATION

NO

CHECK MISSING

IN PB MODE

CHECK

PB MODE

CHECK

A/CE HEAD

MONO

YES

Alignment and Adjustment

Samsung Electronics 5-13

CAPSTAN DOES

NOT ROTATE

PLACE THE VCR

IN PLAY MODE

CN604-5

10V

CN604-8

AL 5V

CN604-3

2.7V CN604-4

2.7V

CN601-10

OUTPUT(PWM)

IC601-3

OUTPUT(PWM)

CHECK

CAPSTAN MOTOR

CHECK

R685, R609, C623

CHECK R660, C691

CHANGE

IC601

CHECK

IC601

CHECK

10V AT AL9V LINE

IN THE POWER BLOCK

CHECK

5.8V AT AL5.8V LINE

IN THE POWER BLOCK

NO

NO NO

YES

NO

YES

NO

YES

YES YES

PLAY

NO SERVO LOCK

IC601-93

C-FG

IC601-89

CTL PULSE

CHECK

CTL PULSE AC

LEVEL (SP. SLP:

OVER 2Vp-p)

CHANGE

IC601

CHECK

A/CE HEAD

CN604-6

NO

YES

Alignment and Adjustment

5-14 Samsung Electronics

DRUM DOES

NOT ROTATE

PLACE THE VCR IN

PLAY MODE

CN605-4

12V

CYL-SPEED

XT601

8MHz

CHECK

CYLINDER MOTOR

CHANGE

XT602, C626, C627

CHECK D-PG, D-FG

IC601-96.97

CHECK

12V AT PC12V LINE

IN THE POWER BLOCK

NO

FASTER

NO

YES

SLOWER

YES

Samsung SV-7000W, SV-5000W-XAA Troubleshooting

Specifications and Main Features

Frequently Asked Questions

User Manual