SAMSUNG SV-DVD6E, SV-DVD3E, SV-DVD3BE Service Manual Troubleshooting

Samsung Electronics 5-1

5. Troubleshooting

(VCR Section)

EE-VIDEO

Insert the

cassette tape recorded by

another VCR and press

PLAY Button

See (Video Missing in EE Mode)

Yes

Play Indicator

in the display

Yes

No

Mechanism

operation

See (Mechanism doesn't

operate in play mode)

Yes

No

PB-VIDEO

See

(Video missing in play mode)

See (PB VIDEO)

audio mising in play mode

Yes

No

Press PLAY key in

remote control

Check IC601-58

Check Timer

Yes

NoNo

Play Mode Inoperative

No Power

(Standby LED OFF)

Fuse F1SS01 is OK?

AL5.8V D1SS14.

Check IC701, DT701.

Change Fuse F1SS01.

Check Trans PT1S01.

Yes

No

AL5V

IC601-14, 92, 69, 70, 41.

Check D620, D692, L605.

No

AL5.8V BD1SS4.

(VCR MAIN PCB)

Check CN701 Wafer

Yes

No

Yes

Check CN701 Connector Wafer.

AL5V IC701-5, 20.

No

Data IN, OUT, CLK

IC701-2, 3, 4.

Yes

No

Yes

Troubleshooting

5-2 Samsung Electronics

CAPSTAN

ROTATION

(S.T REEL)

IC601-98, 99

PROG.SW STATE

IC601-76, 77, 78

CHANGE IC601

CHECK

LOADING MOTOR

MECHANISM OR SW601

TAKE UP REEL SENSOR

SUPPLY REEL SENSOR

(PT601.PT602)

SEE

(CAPSTAN DOES NOT

ROTATE)

NO

DC

STOP MODE

YES

PULSE

YES

A

LOAD A TAPE AND

PRESS PLAY BUTTON

TURN VCR POWER ON

MECHANISM DOESN'T

OPERATE IN PLAY MODE

TAPE LOADING

OPERATION

(LOAD)

IC601-74:HIGH

IC601-75:LOW

(END SENSOR)

IC601-74

CYLINDER

ROTATION

SW 25Hz

IC601-24

CYL FG.PG

IC601-97

SEE IC601-9,

(CYLINDER DOES

NOT ROTATE)

CHECK

START/END SENSOR (S601/S602)

IC601

NO NO

NO

LOW

YES

HIGH

YES

CHECK TAPE AND END SENSOR

CHECK LM B+ AND LM

(VCR Section)

A

Troubleshooting

5-3Samsung Electronics

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

IC601-76, 77, 78

CHECK

MECHANISM

CHECK TIMER

CHANGE IC601-58

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

(VCR Section)

RECORD MODE

DOESN'T OPERATE

PLAY

OPERATION

LOAD VCR WITH A

BLANK TAPE AND

PRESS RECORD BUTTON

REC MODE

SAFETY TAB

SEE

(AUDIO MISSING IN

RECORD MODE)

CHANGE SW602 (REC SW)

CHANGE TAPE

SEE

(PLAY MODE

DOESN'T OPERATE)

EJECT NO

NO

YES

REC-VIDEO

SEE

(VIDEO MISSING IN

RECORD MODE)

NO

YES

(VCR Section)

Troubleshooting

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

IC601-76, 77, 78

CHECK

MECHANISM

CHECK TIMER

CHECK

IC601-58

SEE

(FAST FORWARD

DOESN'T WORK)

NO

YES

STOP

DOES CAPSTAN

MOTOR

ROTATE?

CHECK

IC601-25

(CM F/R)

SEE

(MECHANISM DOES NOT

OPERATE IN PLAY MODE)

NO

YES

REW

YES

(VCR Section)

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

(VCR Section)

Troubleshooting

5-5Samsung Electronics

TURN THE VCR

POWER ON AND

INSERT A TAPE

PRESS EJECT BUTTON

CASSETTE LOADING

MECHANISM

DOES NOT OPERATE

TAPE DETECTED

CST IN MODE

IC601-74:HIGH(5V)

IC601-75:LOW(0V)

CHANGE IC601

CHECK

START/END SENSOR

IC601

CHECK

DM B

+

LINE

CHANGE CAPSTAN MOTOR

NO NO

NO

YES

IC601-39 (5V)

IC601-38 (0V)

IC601-38 (5V)

IC601-39 (0V)

CHECK

CASSETT LOADING

MECHANISM

YES

NO

CN604-8 (12.5V)

YES

NO

YES

(VCR Section)

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

CAP F/R

IC601-25

HIGH

(SEARCH MODE)

YES

NO LOW

CHECK IC601

H'D AMP/ENV COMP.

CHECK CAPSTAN

MOTOR

NOISE BAR

LOCKING

ADJUST

A/CE HEAD

NO

(CONTROL PULSE)

IC601-89

NO

YES

(VCR Section)

Troubleshooting

5-6 Samsung Electronics

VIDEO MISSING IN

RECORD MODE

PLACE THE VCR

RECORD MODE

VIDEO EE MODE

OPERATION

VIDEO SIGNAL

IC301-48, 50, 52

VIDEO SIGNAL

IC801-4

CHECK VIDEO HEAD

CHECK

IC801, C804, C805

SEE

(VIDEO MISSING IN EE MODE)

NO

YES

(VCR Section)

VIDEO SIGNAL

IC301-59

CHECK

C340

FM VIDEO

IC301-78

CHANGE

Q307, C3Q4

FM VIDEO

IC301-88 (LP)

IC301-94 (SP)

CHECK

CN301 CONNECTION

PLACE VCR IN STOP MODE

VIDEO MISSING IN

EE MODE

TUNER MODE

OPERATION

NO

VIDEO SIGNAL

IC801-3

APPLY VIDEO SIGNAL

TO FRONT VIDEO INPUT JACK AND

SET TO LINE MODE BY INPUT SEL BUTTON.

CHECK JC801

VIDEO SIGNAL

CHECK IC301-61 TO

JC801-19 LINE

CHECK

SV-DVD3E/DVD6E TO

TV CONNECTION.

NO

YES

NO

VIDEO SIGNAL

JC801

YES

VIDEO SIGNAL

IC301-61

VIDEO SIGNAL

IC301-50

CHECK TM401

ANTENNA IN

CHECK IC801-3 TO

TM401-24 LINE

NO

VIDEO SIGNAL

TM401-24

CHECK IIC CLK,

DATA LINE

CHECK IC301

NO

IIC CLK, DATA

IC301-68, 69

(VCR Section)