Text preview for : 09_Troubleshooting.pdf part of Samsung 09 Troubleshooting Samsung DVD DVD-V5500 09_Troubleshooting.pdf
Back to : 09_Troubleshooting.pdf | Home
No Power Detected Key Operation or
(stand by LED OFF) Remote Control Error
Samsung Electronics
NO Is the measurement of
power with in normal value? NO
F1SD01 is normal? Change fuse Check power and front connector
is the SMPS to Main connector
properly connected?
YES
YES
5. Troubleshooting
D1SS11, D1SF02 NO
SHORT and OPEN Change short circuited or XT602 8MHz NO
opened parts Check the circuity around the clock
are normal? oscillation is normal?
(XT602 Waveform)
YES YES
Is there voltage at NO
Check 2'st Voltage and D1SS12 Check the circuity NO Check the circuity around
Collector of
SCS11A around IC601 reset? IC601 reset
YES
YES
Operation of NO
Replace SCS11A Check the soldering NO Check the soldering around the
SCS11A is
normal? around IC601 good? IC601
YES
YES
Check feedback IC1S02
Check the circuity around the swich.
Key operatious such NO check the condition of commmunication
as STOP,PLAY,OPEN with Main Micom
are normal? (IC601-11;SCLK, 12;TXD, 13;RXD,
51;RRQ, 66;SRQ)
YES
End repairs STOP,PLAY,OPEN
Key operatious are
normal?
YES
Change IC701
5-1
5-2
PLAY MODE MECHANISM DOESN'T
(VCR Section) (VCR Section)
INOPERATIVE OPERATE IN PLAY MODE
Troubleshooting
TURN VCR POWER ON
NO SEE
EE-VIDEO (VIDEO MISSING IN EE MODE)
LOAD A TAPE AND
YES
PRESS PLAY BUTTON
INSERT THE CASETTE
TAPE RECORDED BY
ANOTHER VCR AND
PRESS PLAY BUTTON NO NO CHECK
TAPE LOADING (LOAD)
IC601-75 : LOW START (S602)
OPERATION IC601
YES YES
PLAY NO NO
INDICATOR PRESS PLAY KEY CHECK
IN THE DISPLAY IN REMOTE IC601, XT602 CHECK CN604
CONTROL Pin8 12V
YES YES
NO
CYLINDER CHECK CYLINDER
CHECK TIMER ROTATION
YES
MECHANISM NO SEE
(MECHANISM DOES NOT
OPERATION OPERATE IN PLAY MODE)
SW 25Hz NO CYL FG.PG
IC601-24 IC601-97
YES
YES
NO SEE
PB-VIDEO VIDEO MISSING A
IN PLAY MODE
YES
SEE (PB VIDEO) AUDIO MISSING
IN PLAY MODE
Samsung Electronics
A RECORD MODE
(VCR Section)
DOESN'T OPERATE
CAPSTAN NO SEE
Samsung Electronics
(CAPSTAN DOES NOT
ROTATION ROTATE) PLAY NO SEE
(PLAY MODE
OPERATION DOESN'T OPERATE)
YES
YES
DC TAKE UP REEL SENSOR LOAD VCR WITH A
(S.T REEL) SUPPLY REEL SENSOR BLANK TAPE AND
IC601-98, 99 (PT601.PT602) PRESS RECORD BUTTON
PULSE
EJECT NO
REC MODE SAFETY TAB CHANGE TAPE
STOP MODE CHECK
PROG.SW STATE LOADING MOTOR
IC601-76, 77, 78 MECHANISM OR SW601
YES YES
YES
CHANGE SW602
CHANGE IC601
NO
D-REC A (H)
IC601-68 CHECK IC601
YES
NO SEE
REC-VIDEO (VIDEO MISSING IN
RECORD MODE)
YES
SEE
(AUDIO MISSING IN
RECORD MODE)
5-3
Troubleshooting
5-4
FAST FORWARD FWD SEARCH DOESN'T
(VCR Section) (VCR Section)
DOESN'T OPERATE OPERATE
Troubleshooting
LOAD TAPE AND
PRESS F.FWD BUTTON
PLAY NO SEE
OPERATION (PLAY DOESN'T OPERATE)
YES
F.FWD NO PRESS FF NO
INDICATOR IN KEY IN REMOTE CHANGE IC601, XT602
THE DISPLAY CONTROL
PRESS F.FWD FOR
YES YES FORWARD SEARCH
CHECK TIMER
IS CAPSTAN NO SEARCH NO
SPEED CHANGED? CHANGE DECK CHANGE IC601
OPERATION
MECHANISM STOP
SEE MECHANISM DOES NOT
STATE IC601-76, 77, 78 OPERATE IN PLAY MODE
YES YES
F.FWD
END
NO SEE CAPSTAN DOES NOT
CAPSTAN MOTOR
ROTATION ROTATE
NOISE BAR NO NO ADJUST
(CONTROL PULSE)
ROTATE LOCKING IC601-89 A/CE HEAD
YES YES
CHECK
MECHANISM
CHECK CAPSTAN
CHECK IC601
MOTOR
Samsung Electronics
CASSETTE LOADING
MECHANISM (VCR Section) VIDEO MISSING IN
(VCR Section)
DOES NOT OPERATE EE MODE
PLACE VCR IN STOP MODE
TURN THE VCR
Samsung Electronics
POWER ON AND
INSERT A TAPE
TUNER MODE OPERATION
NO CASSET SEN NO CHECK NO IC301-68 ; CLOCK NO CHECK
TAPE DETECTED SW604 (CASSET SWITCH) IC301-61
(IC601-71) : HIGH VIDEO OUT 69 ; DATA VIDEO IC601
IC601
YES YES
YES YES
CHANGE IC301
CHECK POWER of NO CHECK
PRESS EJECT BUTTON LOADING MOTOR, IC802-13 NO CHECK
CN604 8pin 12V? DM B+ LINE
VIDEO IN IC802
YES YES
IC802-14 NO
IC601-38 : HIGH(5V) NO CHANGE IC601 CHECK IC802
IC601-39 : LOW(0V) VIDEO OUT
YES
YES
NO
CHECK CHECK
YES CHECK Q811, R844 LINE OUT
IC601-38 : LOW(0V) CASSETT LOADING
IC601-39 : HIGH(5V) MECHANISM YES
NO
YES NO
CHECK IC301-48 CHECK TM BLOCK
C355
CHANGE IC601
5-5
Troubleshooting
5-6
VIDEO MISSING IN VIDEO MISSING IN
RECORD MODE (VCR Section) (VCR Section)
PLAY MODE
Troubleshooting
IC301-48, 50, 52 NO E-E mode and IC301-61
VIDEO signal out? CHECK VIDEO signal out NO SEE PAGE 6-6
VIDEO EE MODE
(VIDEO MISSING IN EE MODE)
OPERATION
YES
YES
IC301-78 NO
CHECK REC FM signal? CHANGE Q307, C304
PLACE THE VCR PLAY MODE
YES
IC301-94 (SP) NO
IC301-88 (SLP) CHECK CN301 CONNECTION NO NO CHECK
VIDEO FM H'D SW
CHECK REC FM signal? IC601-24
IC301-21 IC301-70
YES
YES YES
CHECK
NO DEFECT RECORD MODE VIDEO HEAD
VIDEO NO CHECK
IC301-78 Q301, C395
YES
YES VIDEO SIGNAL YES VIDEO SIGNAL YES CHECK VIDEO
IC301-65
IC6P01-19 IC301-61 OUT LINE
NO NO NO
CHANGE IC301 CHECK IC6P01, Q6P01, R6P10 CHECK IC802, C380
Samsung Electronics
COLOR MISSING IN COLOR MISSING IN
RECORD MODE (VCR Section) (VCR Section)
PLAY MODE
Samsung Electronics
(VIDEO IN) NO SEE PAGE 9-6 NO
(VIDEO MISSING IN RECORD FM-ENV SEE PAGE 9-7
RECORD MODE MODE) IC301-25 (VIDEO MISSING IN PLAY MODE)
YES YES
COLOR signal NO CHECK XT301 YES
CHANGE XT301 COLOR-MONITOR NO COLOR-KILLER YES
IC301-58 IC301-58 IC301-33 (2V)
YES YES YES NO
CHANGE IC301
COLOR ROTERY NO
CHECK IC601-29
IC301-57
NO
COLOR KILLER CHECK THE REC LINE CHECK
IC301-33 (2V) IC301-61 YES
YES
CHECK IC301-27. 34
XT301
CHANGE
IC301
CHANGE
IC301
5-7
Troubleshooting
5-8
OSD PICTURE BLUE MISSING IN
(VCR Section) (VCR Section)
MISSING STOP MODE
Troubleshooting
PACE VCR IN STOP MODE
2fsc IN NO
CHECK IC6P01
IC6P01-2
YES SELECT LINE
MODE WITHOUT
INPUT SIGNAL
NO YES
OSC IN CHECK L6P05, C6P04, C6P05
IC6P01-6
YES IC6P01-8 "H" NO YES
VIDEO SIGNAL CHECK OSD VIDEO IN LINE
(SYNC JUDGE) IC6P01-19
YES NO
STB, CLK, DATA
IC6P01-9, 10, 11
CHECK IC6P01
YES
NO
IC601-72 "H" CHECK IC6P01-8 TO IC601-72
CHANGE IC6P01
YES
IC6P01-9, 10, 11 NO
CHECK IC601-6, 7, 8
(STB, CLK, DATA)
YES
CHANGE IC601
Samsung Electronics
AUDIO MISSING IN AUDIO MISSING IN
(VCR Section) (VCR Section)
EE MODE
(VCR Section) REC MODE
VCR STOP MODE
CHECK
Samsung Electronics
AUDIO MISSING
IN EE MODE
LINE IC501-7, 6, 9 NO CHECK
INPUT CHOICE AUDIO SIGNAL R517, R518
MODE INPUT R509, R510
TUNER YES
MISSING AUDIO MONO
MONO
NO IC501-51, 53
CHECK TUNER AUDIO SIGNAL
AND IC4N01 INPUT
HIFI
YES
CHECK
CHECK NO IC501-7, 69
IC601 IC501-38, 39 NO CHANGE
(CLK, DATA) AUDIO SIGNAL IC501
YES
YES
CHANGE NO IC501-78, 80
IC501 AUDIO SIGNAL
YES
IC501-26 NO CHECK L504, C512, R503, C513
CHECK NO IC801-1, 3
IC801 AUDIO SIGNAL AUDIO FM CHANGE IC501
YES
YES
CHECK
C851, C852
L803, L804
CHECK CYLINDER
5-9
Troubleshooting
5-10
MONO AUDIO MISSING
(VCR Section)
IN PB MODE
Troubleshooting
CHECK AUDIO MISSING NO CHECK
IN PB MODE PB MODE CHECK "AUDIO
YES MISSING IN EE MODE"
IC301-15 NO IC501-4 YES CHECK
AUDIO SIGNAL AUDIO SIGNAL C523, R511, R512
PLACE THE VCR IN PB MODE
YES NO
CHANGE IC501
IC301-10 NO CHECK MONO
AUDIO SIGNAL IC301-12, 14 AND CHANGE IC301 AUDIO SELECT
YES
HIFI
IC301-100 NO CHANGE CHECK
AUDIO FM SIGNAL IC301 IC501-78, 80 NO IC501-40 (A.H D SW)
AUDIO FM(MIXED) CHANGE CYLINDER OR
IC501
YES
YES
IC301-5
MIX SIGNAL NO CHECK IC301-68, 69
(AUDIO+70KHz) R3A04 CHECK (CLOCK, DATA) CHANGE
IC501
YES
CN3A01-4 NO CHECK
OSCILLATION Q3A02, Q3A03, Q3A06
IC301-5AUDIO SIGNAL NO CHECK ACE HEAD
YES C3A16 AND CHANGE IC301
CHECK
A/CE HEAD YES
CHECK L3A01, R3A25
CHANG IC301
Samsung Electronics
CAPSTAN DOES
NO SERVO LOCK (VCR Section) (VCR Section)
NOT ROTATE
PLAY
Samsung Electronics
NO CHECK
CN604-2
15V B+ IN THE POWER BLOCK
YES
NO CHECK
IC601-93
C-FG CN604-1
NO CHECK PC5V
CN604-3 5V AT LINE
YES AL 5V IN THE POWER BLOCK
YES
IC601-87 NO
CTL PULSE
PLACE THE VCR
IN PLAY MODE
YES
CHECK
CTL PULSE AC NO CHECK CN604-9 NO IC601-10 NO
CHANGE
LEVEL (SP. SLP: A/CE HEAD
OVER 1Vp-p) 3.2V OUTPUT(PWM) IC601
YES YES YES
CHECK R609
CHANGE
IC601
NO CN601-3 NO CHECK
CN604-5
OUTPUT(PWM) IC601
2.6V
YES YES
CHECK
CHECK R660
CAPSTAN MOTOR
5-11
Troubleshooting
5-12
DRUM DOES (VCR Section)
NOT ROTATE
Troubleshooting
NO CHECK AL12V
CN604-6 12V AT LINE
12V IN THE POWER BLOCK
YES
NO
CN604-3 CHECK PC5V LINE
5V
YES
CN604-12 NO NO
IC601-5, 9 DRUM CTL "L" CHANGE IC601
2.5V
YES
YES
CHECK CHECK
CYLINDER MOTOR R608, C659, R617, C661
Samsung Electronics
No focus incoming (DVD Section) No pick-up home positing (DVD Section)
A
Samsung Electronics
U1-172 No Check U1, DRIC1 DRIC1-20 No
has data input? connection circuit Check U1, DRIC1 connection.
input has data?
Yes (U1-172 Waveform)
(DRIC1-20 SLD Waveform)
Yes
DRIC1-27,28 No Check DRIC1's circuit
has data? and soldering
SL+, SL- No
Yes DRIC-13,14 output are Check DRIC1.
normal?
Yes
Check connection
DCON3
Check the Sled Motor and connection
5-13
Troubleshooting
5-14
NO LD CD ON (DVD Section) No Search Operation (DVD Section)
Troubleshooting
No TP MIRR No RFAGCO, RIC1-63 No
RIC1-19, 58 is 5V? Check RIC1 output is normal? output level is normal?
Yes Yes
Yes Check pick-up.
(TP MIRR Waveform)
(QLP2 Emitter Waveform)
QLP2 emitter terminal Check RIC1 peripheral circuit.
voltage and 5V real voltage
difference into 10ohm.
No A
occurs in search range? Focus On?
No
Current exceeds 0.1A? Open check in related circuit.
Yes
Yes
See "Fine Seek Check"
LD out pick-up replace.
Samsung Electronics
Abnormal rotation of
FINE SEEK Check (DVD Section) (DVD Section)
disc motor
Samsung Electronics
MIRR Yes Input of TP RFINP
signal (RIC1-27) is missing? Check RIC1 Peripheral curcuit. No RIC1-54,55 output No
signal is normal? is normal?
(U1-154, 155)
(TP RFINP Waveform)
No Yes Yes
Check RIC1 peripheral
circuit and A, B, C, D.
Track incomming is No Time out due to many jump counts. (Xstrack Waveform)
delayed?
SPD output is normal? No
Yes (U1-171)
Check path to RIC1 and U1.
Yes
(SPD Waveform)
After resoldering U1.
TE is within No U1-175(Xstrack) No
1.5V~2.5V and 3V? output is normal?
Yes Yes
Check RIC1-39 terminal.
Check or replace disc motor.
No DRIC1-25,26(T+, T-) No
Pick-up transfer smooth. terminal outputs are
normal?
Yes Yes
Check U1 peripheral circuit.
Check MECHA.
Check U1 peripheral circuit. Check DCON3 and pick-up.
5-15
Troubleshooting
5-16
CD/VCD/DVD L/R output error
No Tray open/close (DVD Section) (DVD Section)
(Mixed Audio output)
Troubleshooting
Normal state 1,5V
Normal DATA 0 is No Check U1-117 output.
U1-169 is input in AIC2-2?
No (DATA 0 Waveform)
Open ; 2,8V Check U1 perpheral circuit.
Close ; 0,3V Yes
Yes
CHECK Check U1-1, 3, 13~16 data/clock
No (CD/VCD ; 16.9344MHz,
AIC2-7, 8pin output is
normal? (Vout Waveform) DVD ; 18.432MHz)
Check DRIC1-17 No
OPEN : 3.3V Check DRIC1-17,18 Yes
CLOSE : 8.3V
Yes
(U1-169 Waveform)
AIC4-1, 7 output No Check AIC4 peripheral circuit.
is normal?
(DRIC-17 Waveform)
Check DCON1 PIN 3, 4 Yes
Base terminal level No
of AQ1, AQ3 Check AIC2-11, 12.
are "L"?
Yes
Check PCB peripheral
Pattern shot.
Samsung Electronics
S-Video output error (DVD Section) CVBS output error
Pin of D3.3V No Check PPIC3-2
Did the screen No in U1 has normal level?
Samsung Electronics
Change a screen set 3.3V or NOT
select with the s-video
Yes
Yes
27MHz clock
input is normal at No Check DY1.
pin 2, 3 in U1?
VIC1-28, 31 output No Check the cincuit of VIC1
is normal? Yes
Yes Analog output
No Check the soldering of
is normal at pin 110
in U1? R10, R7, R8.
S-Video Jack output No Check the connection between Yes
is normal? VIC1 and S-JACK
Analog signals are No Check the connection netween
Yes inputted normally pin 133 in ZIC1 and VIC1.
VIC1-2?
Check the connection of s-video cable Yes
Power is No Check the connection betwen
normal at VIC1-1, 34? VIC1-1 and VL6
Yes
Pin 5 in VIC1 No Check the VIC1
is in LOW state? Pheriperal circuit.
Yes
Video signal of No Check the connection between
about 1V appears at VIC1 and output jack.
output jack?
Yes
Check the RCA cable.
5-17
Troubleshooting
Troubleshooting
MEMO
5-18 Samsung Electronics