Samsung Electronics 3-1
3. Troubleshooting
No Disc recognition
LD is outputted
from object lens at
play key input?
No focus incoming and
no disc occurs.
Yes
No
B
A
No focus incoming
FE in SIC1-25
is within specified range?
SIC3-26, 27 output
are normal?
Check open state from
SIC3 to pick-up.
Check RIC1 and A, B, C, D input.
Check SIC3.
Yes
Yes
No
No
A
Troubleshooting
3-2 Samsung Electronics
No pick-up home positing
SIC1-34
output is normal?
Check the Sled Motor and connection
Check MIC1
Yes
No
SLED+, SLED-
SIC3-32, 33 output are
normal?
Check SIC3
Yes
No
NO LD CD ON
RIC1-19 is 5V?
Current exceeds 0.1A?
LD out pick-up replace.
Open check in related circuit.
Check MIC1
Yes
Yes
Yes
No
No
Divide RQ2 emitter terminal
voltage and 5V real voltage
difference into 10ohm.
B
Troubleshooting
Samsung Electronics 3-3
No Search Operation
MIRR, SIC1-157
output is normal?
Actual velocity occurs
at SIC1-34 terminal?
Actual velocity occurs
at SIC3-32, 33 terminal?
Check RIC1 peripheral circuit.
RFAGCO, RIC1-72
output level is normal?
Check SIC1 peripheral circuit.
Check SIC3 peripheral circuit.
No
No
No
No
Yes
TE occurs in
search range?
Focus On?
Yes
Yes
Yes
A
See "Fine Seek Check"
No
Yes
Check pick-up.
No
FINE SEEK Check
FINE SEEK MIRR
signal (RIC1-65) is missing?
TZCO signal
(SIC1-24) is occurs?
Track incomming is
delayed?
TE is within
2V and 3V?
Pick-up transfer smooth.
Check RIC1 Peripheral curcuit.
Check SIC1 Peripheral curcuit.
Time out due to many jump counts.
Check SIC1 peripheral circuit.
SIC1-33 output
is normal?
SIC3-28, 29
terminal outputs are
normal?
Check DCN1 and pick-up.
Check MECHA.
Check RIC1-26 terminal.
Check SIC3 peripheral circuit.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
Troubleshooting
3-4 Samsung Electronics
Abnormal rotation of
disc motor
Input of RF signal
is normal? (SIC1-15)
SPD output is normal?
(SIC1-35)
After resoldering SIC1.
SIC3-2 output (FG)
is normal?
SIC3-10 signal
MON is "H" ?
Check or replace disc motor.
Check SIC1, MIC1.
Check SIC3 soldering and power.
Check path to RIC1 and SIC1.
Check RIC1 soldering and power.
RIC1-70 output
are normal?
RIC1-71 output
is normal?
Check RIC1 peripheral
circuit and A, B, C, D.
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No Tray open/close
MIC1-36, 37 is
Open ; "L", "L" ?
Close ; "H", "H"?
Check SIC3-35, 36
output at open/close
Check signal line state from
SIC3-35, 36 to tray motor.
Micom (MIC1) error.
Check SIC3.
Yes
Yes
No
No
Troubleshooting
Samsung Electronics 3-5
CD/VCD/DVD L/R output error
(Mixed Audio output)
Normal DATA 0 is
input in AIC4-2?
Analog output of
AIC4-7, 8 is
normal?
Check AVJ2 peripheral
soldering shot.
Check ZIC1-121 output.
Check ZIC1-125
(CD/VCD ; 16.9344MHz,
DVD ; 18.432MHz)
Yes
Yes
No
No
AOP4-1, 7 output
is normal?
Check AOP1 peripheral circuit.
Yes
No
Base terminal level
of AQ1, AQ3
are "L"?
Check FIC1-11 mute.
Yes
No
Headphone output error
AVJ2 L/R output is
normal?
HOP1-1, 7 output
is normal?
Check 3 pin-Headphone-jack
peripheral soldering shot.
Check AVJ2 L/R output error.
Check HOP2-1, 7 output.
Yes
No
No
Yes
Troubleshooting
3-6 Samsung Electronics
Digital output error
Output in ZIC1-127 is normal?
Output in
AIC3-6, 8, 10 is
normal?
Check AVJ4, ACJ5 peripheral
soldering shot.
Check ZIC1 peripheral circuit.
Check AIC3.
Yes
No
No
Yes
No Power (110V~240V)
(Standby LED OFF)
PFD01 error?
PDS01 voltage
is missing?
Replace PICF1.
Replace fuse.
ΠCheck PDS01 ~ 04.
´ Check PRF10.
No
No
Yes
Drain (1PIN) of
PICF1 output normal
voltage?
ΠCheck 2'd voltage.
´ Check PICF1.
No
Vcc (4PIN) of
PICF1 output normal
voltage?
Check PICF1~ 5PIN.
Yes
No
Switching operation
of PICF1 is normal?
Replace PICF1.
Check feed back.
Yes
Yes
No
Yes
Troubleshooting
Samsung Electronics 3-7
No Power (240 Voltage)
(Standby LED OFF)
PFD01 error?
PDS01 voltage
is missing?
Replace PQR11.
Replace fuse.
Check PDS01 ~ 04.
No
No
Yes
Collector of
PQR11 output normal
voltage?
Check 2'd voltage.
No
Operation of
PQR11 is normal?
Replace PQR12.
Yes
No
Switching operation
of PQR11 is normal?
Replace PQR11.
Check feed back.
Yes
Yes
No
Yes
S-Video output error
VSW1 video select
switch is up position?
VR121 of VSW1
is high state?
Move the select switch to up position.
Check the soldering of VSW1.
Yes
No
No
FIC1-61 is high state?
Check the connection between
FIC1-61 and VR121.
Yes
No
Yes
D
Troubleshooting
3-8 Samsung Electronics
Y/Pr/Pb output error
VSW1 video select
switch is down position?
VR121 of VSW1
is low state?
Move the select switch to down position.
Check the soldering of VSW1.
Yes
No
No
FIC1-61 is high state?
Check the connection between
FIC1-61 and VR121.
Yes
No
Yes
D
CVBS output error
27MHz clock
input is normal at
pin 159 in ZIC1?
Analog output
is normal at pin 133
in ZIC1?
Check the connection between
pin 6 in ZIC4 and pin 129 in ZIC1.
Check the soldering of ZIC1.
Yes
Yes
No
No
Analog signals are
inputted normally
VIC1-4?
Yes
No
Power is
normal at VIC1-1, 34?
Yes
No
Pin 7 in VIC1
is in high stste?
Yes
Check the connection netween
pin 133 in ZIC1 and VIC1.
Check the connection betwen
VIC1 and PICS4-2.
Check the connection between
PICS4-2 and pin 1 in VIC1.
Check the soldering of VIC1.
No
No
Check the connection between
VIC1 and output jack.
Pin of VDD_2.5 &
VDD-3.3 in Zic1 has
normal level?
Check the connection between
pin 1 in PCNS1 and pin 3 in ZIC5.
Yes
No
Peak to peak
voltage level of VIC1-30?
Video signal of
about 1V appears at
output jack?
Yes
No
Yes
Check the RCA cable.
D
Troubleshooting
Samsung Electronics 3-9
RGB output error at SCJ1
(1 Scart Jack)
Output voltage at
pin 16 in SCJ1 is in
1V ~ 3V?
RGB signal is
outputed at pin 139, 145,
151 in ZIC1?
Check the pin 13 in SCIC1 --> "H" state.
Check SCQ 2, 3 circuit.
See "Video output error in RCA jacks"
Yes
Yes
No
No
Yes
Œ
Check the VIC1-15 -->
"H" state
´
Check the connection with
VIC1-18, 21, 24.
No
Check the connection between
SCIC1 and VIC1.
RGB signal is
inputed at VIC1-12, 14, 16?
RGB signal is
outputed at pin 7, 11, 15
in SCJ1?
No
Yes
Check the SCART cable.
Change the SCART output in
setup menu to RGB.
RGB output error at SCJ1
(2 Scart Jack)
Output voltage at
pin 16 in SCJ1 is in
1V ~ 3V?
RGB signal is
outputed at pin 139, 145,
151 in ZIC1?
Check the pin 13 in SCIC1 --> "H" state.
Check SCQ 2, 3 circuit.
See "Video output error in RCA jacks"
Yes
Yes
No
No
R signal is
outputed normally at pin 4
in SCIC2?
Yes
No
Yes
Œ
Check the connection between
pin 151 in ZIC1 and pin 3 in SCIC2.
´
Check the pin 9, 10, 11 in SCIC3
--> "H" state.
Œ
Check the VIC-15 -->
"H" state
´
Check the connection with
VIC1-18, 21, 24.
No
Check the connection between
SCIC2 and VIC1.
RGB signal is
inputed at VIC1-12, 14, 16?
RGB signal is
outputed at pin 7, 11, 15
in SCJ1?
No
Yes
Check the SCART cable.
Change the SCART output in
setup menu to RGB.
Troubleshooting
3-10 Samsung Electronics
MEMO
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