Text preview for : 27095303843_CH8.pdf part of Samsung DVD-P241 Samsung DVD-P241.part4
Back to : Samsung DVD-P241.part4.ra | Home
No focus incoming No pick-up home positing
Samsung Electronics
Check RIC1 and A, B, C, D input. ZIC1-191(SLED-PWM) output is normal? (1.7V ~ 1.8V) No Check ZIC1. Yes No Check FIC1. SLED+, SLEDFIC1-32, 33 output are normal? Yes Check FIC1. Check the Sled Motor and connection.
A
8. Troubleshooting
FE in ZIC1-181 is within specified range?
No
Yes
FIC1-27, 28 output are normal?
No
Yes
Check open state from FIC1 to pick-up.
8-1
8-2
No Search Operation No No MEVO, RIC1-32 output level is normal? Check RIC1 MIRR, RIC1-27 output is normal? Yes Yes Check pick-up. Check RIC1 peripheral circuit. Actual velocity occurs at ZIC1-191 terminal? Open check in related circuit. Yes No Check ZIC1 peripheral circuit. Actual velocity occurs at FIC1-32, 33 terminal? Yes No Check FIC1 peripheral circuit. TE occurs in search range? No Focus On? No A Yes See "Fine Seek Check"
NO LD CD ON
Troubleshooting
B
RIC1-21 is 5V?
No
Yes
Divide RQ2 emitter terminal voltage and 5V real voltage difference into 10ohm.
Yes
Current exceeds 0.1A?
No
Yes
LD out pick-up replace.
Samsung Electronics
Samsung Electronics
Abnormal rotation of disc motor Input of RF SUM signal is normal? (ZIC1-172, 173) No RIC1-54, 55 output is normal? Yes Check RIC1 peripheral circuit and A, B, C, D. Check path to RIC1 and ZIC1. SPD output is normal? (ZIC1-189) Yes Check ZIC1 peripheral circuit. ZIC1-169(TRD) output is normal? No No No Yes Yes Check RIC1-39 terminal. FIC1-36, 35(T+, T-) terminal outputs are normal? No Yes Check FIC1 peripheral circuit. FIC1-35 output is normal? Yes No Check FIC1 soldering and power. FIC1-22 signal MON is "H" ? Yes No Check ZIC1. Check or replace disc motor.
FINE SEEK Check
FINE SEEK MIRR signal (RIC1-27) is missing?
Yes
Check RIC1 Peripheral curcuit.
No
Track incomming is delayed?
No
Time out due to many jump counts.
Yes
TE is within 2V and 3V?
No
Yes
Pick-up transfer smooth.
No
Yes
Check Deck.
Check SIC1 peripheral circuit.
Check DCN1 and pick-up.
Troubleshooting
8-3
8-4
CD/VCD/DVD L/R output error (Mixed Audio output) No Check ZIC1 perpheral circuit. Yes Normal DATA 0 is input in AIC2-2? Check ZIC1-113 output. No Analog output of AIC2-7, 8(Vout) is normal? No No Check FIC1 perpheral circuit. Yes Check ZIC1-118 (CD/VCD ; 16.9344MHz, DVD ; 18.432MHz) AIC4-1, 7 output is normal? Yes No Check AIC4 peripheral circuit. Base terminal level of AQ1, AQ3 are "L"? Yes No Check ZIC1-106 mute. Check JACK1 peripheral soldering shot.
Troubleshooting
No Tray open/close
ZIC1-147, 149 Open ; "L" Close ; "H"
Yes
Check FIC1-14, 15 output at OPEN/CLOSE.
Yes
Check signal line state from FIC1-14, 15 to tray motor.
Samsung Electronics
S-Video output error
Y/Pr/Pb output error
Samsung Electronics
Select video output to "S-VIDEO". Select video output to "525I". Video output of display setup is "525I". Yes C No
Video output of display setup is "S-VIDEO".
No
Yes
C
Troubleshooting
8-5
8-6
CVBS output error C Pin of VDDP in ZIC1 has normal level? No Check the connection between pin 1 in PCNS1 and pin 1 in ZIC5. Yes No Select video output to "525P". 27MHz clock input is normal at pin 141 in ZIC1? Yes No Check ZY1. Analog output is normal at pin 159 in ZIC1? Yes Analog signals are inputted normally VIC1-2? Yes Power is normal at VIC1-1, 34? Yes Pin 5 in VIC1 is in high stste? Yes No No Check the connection between PDS52 and pin 1 in VIC1. No Check the connection betwen VIC1-1 and PDS52. No Check the connection netween pin 158 in ZIC1 and VIC1. Check the soldering of ZIC1. Peak to peak voltage level of VIC1-33? Yes Video signal of about 1V appears at output jack? Yes Check the RCA cable. No Check the connection between VIC1 and output jack. Check the soldering of VIC1.
Troubleshooting
Progressive output error
Video output of display setup is "525P".
No
Yes
C
Samsung Electronics
No Power (Standby LED OFF)
Samsung Electronics
Replace fuse. Check PDS01 ~ 04. Replace PQR11. Check feed back, 2st voltage. (Fig. 2)
PFD01 error?
Yes
No
PDS01 voltage is normal voltage?
No
Yes (Fig. 1)
(Fig. 1)
Vce of PQR11 output normal voltage?
Yes (Fig. 2)
No (Fig. 3)
(Fig. 3)
Check 2st voltage and PZR31 and Replace PQR11, PQR12, PRD11.
Troubleshooting
8-7
Troubleshooting
MEMO
8-8
Samsung Electronics