Troubleshooting
9-16
Samsung Electronics
No Tray open/close
ZIC1-46 is
Open ; "L" ?
Close ; "H" ?
Check SIC3-34, 35
output at
OPEN
/CLOSE
Check signal line state from
SIC3-34, 35 to tray motor.
Check ZIC1 perpheral circuit.
Check SIC3 perpheral circuit
and DCN3 connector.
Yes
Yes
No
No
(OPEN Waveform)
(DVD Section)
CD/VCD/DVD L/R output error
(Mixed Audio output)
Normal
DATA 0
is
input in AIC4-2?
CHECK
AIC4-7, 8pin output is
normal?
Check PCB peripheral
Pattern shot.
Check ZIC1-184 output.
Check ZIC1-179
(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 VCR-MICOM mate
Yes
No
(DATA 0 Waveform)
(Vout Waveform)
(DVD Section)
Summary of Contents for SV-DVD50
Page 82: ...Circuit Operating Descriptions 7 7 Fig 7 12 Block Diagram...
Page 116: ...Circuit Operating Descriptions 7 41 3 Block Diagram Fig 7 38 LA70100M Block Diagram...
Page 141: ...VCR Deck Operating Description 8 12 Samsung Electronics Fig 8 14 Mecha Timing Chart...
Page 156: ...Samsung Electronics 11 1 11 Wiring Diagram...
Page 158: ...Schematic Diagrams 12 2 Samsung Electronics 6 1 S M P S...
Page 159: ...Schematic Diagrams Samsung Electronics 12 3 6 2 Power Drive...
Page 160: ...Schematic Diagrams 12 4 Samsung Electronics DT701 6 3 Display Function...
Page 161: ...Schematic Diagrams Samsung Electronics 12 5 6 4 System Control Servo...
Page 162: ...Schematic Diagrams 12 6 Samsung Electronics 6 5 A V...
Page 163: ...Schematic Diagrams Samsung Electronics 12 7 6 6 Hi Fi...
Page 164: ...Schematic Diagrams 12 8 Samsung Electronics 6 7 A2 NICAM...
Page 165: ...Schematic Diagrams Samsung Electronics 12 9 6 8 SECAM Option...
Page 166: ...Schematic Diagrams 12 10 Samsung Electronics 6 9 OSD VPS PDC...
Page 167: ...Schematic Diagrams Samsung Electronics 12 11 6 10 TM...
Page 168: ...Schematic Diagrams 12 12 Samsung Electronics 6 11 Input Output...
Page 169: ...Schematic Diagrams Samsung Electronics 12 13 6 12 DVD AV Decoder...
Page 170: ...Schematic Diagrams 12 14 Samsung Electronics 6 13 DVD Servo...
Page 171: ...Schematic Diagrams Samsung Electronics 12 15 6 14 DVD Audio Video...
