Text preview for : 12_Trouble Shooting.pdf part of Samsung 12 Trouble Shooting Samsung DVD Trino chassis Training 12_Trouble Shooting.pdf
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No focus incoming No pick-up home positing
A
Samsung Electronics
FE in ZIC1-181 No ZIC1-191(SLED-PWM) No
is within specified range? Check RIC1 and A, B, C, D input. output is normal? Check ZIC1.
(1.7V ~ 1.8V)
8. Troubleshooting
Yes
Yes
SLED+, SLED- No
FIC1-27, 28 output No FIC1-32, 33 output are Check FIC1.
Check FIC1.
are normal? normal?
Yes Yes
Check the Sled Motor and connection.
Check open state from
FIC1 to pick-up.
8-1
8-2
NO LD CD ON No Search Operation
B
Troubleshooting
No MIRR, RIC1-27 No MEVO, RIC1-32 No
RIC1-21 is 5V? Check RIC1 output is normal? output level is normal?
Yes Yes
Check pick-up.
Yes
Divide RQ2 emitter terminal Check RIC1 peripheral circuit.
voltage and 5V real voltage
difference into 10ohm.
Yes
Actual velocity occurs No
Check ZIC1 peripheral circuit.
at ZIC1-191 terminal?
No
Current exceeds 0.1A? Open check in related circuit.
Yes
Yes
LD out pick-up replace. Actual velocity occurs No
at FIC1-32, 33 terminal? Check FIC1 peripheral circuit.
Yes
No No
TE occurs in search range? Focus On? A
Yes
See "Fine Seek Check"
Samsung Electronics
Abnormal rotation of
FINE SEEK Check
disc motor
Samsung Electronics
FINE SEEK MIRR Yes Input of RF SUM
Check RIC1 Peripheral curcuit. No RIC1-54, 55 output No
signal (RIC1-27) is missing? signal is normal?
(ZIC1-172, 173) is normal?
No Yes Yes
Check RIC1 peripheral
circuit and A, B, C, D.
Track incomming is No
Time out due to many jump counts.
delayed? Check path to RIC1 and ZIC1.
SPD output is normal? No
Yes (ZIC1-189)
Yes
Check ZIC1 peripheral circuit.
TE is within No ZIC1-169(TRD) No
2V and 3V? output is normal?
Yes Yes Check RIC1-39 terminal.
No FIC1-36, 35(T+, T-) No FIC1-35 output No
Pick-up transfer smooth. terminal outputs are Check FIC1 soldering and power.
is normal?
normal?
Yes Yes Yes
Check FIC1 peripheral circuit.
Check Deck.
Check SIC1 peripheral circuit. Check DCN1 and pick-up. FIC1-22 signal No
Check ZIC1.
MON is "H" ?
Yes
Check or replace disc motor.
8-3
Troubleshooting
8-4
No Tray open/close CD/VCD/DVD L/R output error
(Mixed Audio output)
Troubleshooting
Normal DATA 0 is No
ZIC1-147, 149 Check ZIC1-113 output.
No input in AIC2-2?
Open ; "L" Check ZIC1 perpheral circuit.
Close ; "H"
Yes
Yes
Analog output of Check ZIC1-118
No
AIC2-7, 8(Vout) is (CD/VCD ; 16.9344MHz,
normal? DVD ; 18.432MHz)
Check FIC1-14, 15 No
output at OPEN/CLOSE. Check FIC1 perpheral circuit. Yes
Yes
AIC4-1, 7 output No
Check AIC4 peripheral circuit.
is normal?
Check signal line state from
FIC1-14, 15 to tray motor. Yes
Base terminal level No
of AQ1, AQ3 Check ZIC1-106 mute.
are "L"?
Yes
Check JACK1 peripheral
soldering shot.
Samsung Electronics
S-Video output error Y/Pr/Pb output error
Video output of display No Video output of display No
Samsung Electronics
Select video output to "S-VIDEO". Select video output to "525I".
setup is "S-VIDEO". setup is "525I".
Yes Yes
C C
8-5
Troubleshooting
8-6
Progressive output error CVBS output error
C
Troubleshooting
Pin of VDDP No Check the connection between
No in ZIC1 has normal level? pin 1 in PCNS1 and pin 1 in ZIC5.
Video output of display Select video output to "525P".
setup is "525P".
Yes
Yes
27MHz clock
input is normal at No
Check ZY1.
C pin 141 in ZIC1?
Yes
Analog output No
is normal at pin 159 Check the soldering of ZIC1.
in ZIC1?
Yes
Analog signals are No Check the connection netween
inputted normally pin 158 in ZIC1 and VIC1.
VIC1-2?
Yes
Power is No Check the connection betwen
normal at VIC1-1, 34? VIC1-1 and PDS52.
Yes
Pin 5 in VIC1 No Check the connection between
is in high stste? PDS52 and pin 1 in VIC1.
Yes
Peak to peak No
voltage level of VIC1-33? Check the soldering of VIC1.
Yes
Video signal of No Check the connection between
about 1V appears at VIC1 and output jack.
output jack?
Yes
Check the RCA cable.
Samsung Electronics
Scart Output Error No Power
(Standby LED OFF)
No Yes
Samsung Electronics
Video output of display Select video output to "SCART". PDS01~04 error? Replace PDS01~PDS04.
setup is "SCART".
No
Yes
C
No
Fuse open? Replace Fuse.
Yes
PICF1 operate No
Check 2st Voltage and circuit
normally
Yes
OUTPUT voltage No
of PDS31, 33, 34 is Check 2st circuit.
normal?
Yes
Voltage of Yes
PICF1-7pin 13V~17V? Check Feed Back, 2st voltage
No
Replace PICF1
8-7
Troubleshooting
Troubleshooting
MEMO
8-8 Samsung Electronics