Samsung SV-DVD1EA Troubleshooting

Samsung Electronics 5-1

5. Troubleshooting

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

(VCR Section)

No Power

(Standby LED OFF)

Fuse F01 is OK?

(SMPS PCB)

AL5.8V DV32, DV32.

(SMPS PCB)

Check IC701, DT701.

Change Fuse F01.

Check Trans PT01, DV32, DD32.

Yes

No

AL5.8V CN1P2-Pin3.

(SMPS PCB)

Check CN1P2 Cable.

No

AL5.8V

IC601-41, 69, 92.

(VCR MAIN PCB)

Check D692, L605, W475, W476.

Check XT602, IC601.

Yes

No

8MHz

IC601-18, 19.

(VCR MAIN PCB)

Yes

No

Check CN701 Connector Wafer.

AL5V

IC701-33, 45.

(F/TIMER PCB)

Yes

No

Data IN, Out, CLK

IC701-6, 5, 8.

(F/TIMER PCB)

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)

IC601-38:HIGH

IC601-39:LOW

(END SENSOR)

IC601-74

CYLINDER

ROTATION

SW 30Hz

IC601-25

CYL FG.PG

IC601-96.97, IC610-7,8

SEE IC610-2,

(CYLINDER DOES

NOT ROTATE)

CHECK

START/END SENSOR (S601/S602)

IC601

NO NO

NO

LOW

YES

HIGH

YES

CHECK TAPE

CHECK IC610

(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

IC601-93.98.99

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

(VCR Section)

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 SW602

CHECK IC601

CHANGE TAPE

SEE

(PLAY MODE

DOESN'T OPERATE)

EJECT NO

NO

YES

NO

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

IC601-93.98.99

CHECK

MECHANISM

CHECK TIMER

CHECK

IC601. XT602

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

YES 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

IC601-38:HIGH(5V)

IC601-39:LOW(0V)

CHANGE IC601

CHECK

START/END SENSOR (S601/S602)

IC601

CHECK

DM B

+

LINE

CHANGE IC610

NO NO

NO

YES

IC601-39:LOW(0V)

IC601-38:HIGH(5V)

IC610-13:HIGH(5V)

IC610-15:LOW(0V)

CHECK

CASSETT LOADING

MECHANISM

YES

NO

IC610-9:12V

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

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

FM-VIDEO

IC301-12

FM-VIDEO

IC301-84.90

5V

IC301-30

CHECK VIDEO HEAD

CHECK IC601-68

CHANGE IC301

CHANGE

IC301

SEE PAGE 6-6

(VIDEO MISSING IN EE MODE)

NO

NO YES

NO

YES

(VCR Section)

PLACE VCR IN STOP MODE

VIDEO MISSING IN

EE MODE

TUNER MODE

OPERATION

NO

VIDEO SIGNAL

IC801-2

APPLY VIDEO SIGNAL

TO REAR VIDEO INPUT JACK AND

SET TO AUX MODE BY TV VIEW BUTTON.

CHECK AVJ1,

VIDEO SIGNAL

CHECK

C874, R859

CHECK

IC801-2 TO

TM401-24 LINE

VIDEO SIGNAL

TM401-24

CHECK

SV-DVD1E TO

TV CONNECTION.

CHECK

TM401,

ANTTENNA IN

NO

YES

CHANGE IC801

IIC CLK, DATA

IC801-63, 64

CHECK

IIC CLK, DATA

LINE

NONO

YES

NO

VIDEO SIGNAL

JC801-19

YES

VIDEO SIGNAL

IC801-19

VIDEO SIGNAL

IC801-8

(VCR Section)