Troubleshooting
Samsung Electronics
5-25
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
Summary of Contents for CFTD2085X/SMS
Page 9: ...Samsung Electronics 3 1 2 Specifications ...
Page 10: ...MEMO 3 2 Samsung Electronics ...
Page 101: ...8 4 Samsung Electronics MEMO ...
Page 102: ...Schematic Diagrams 9 1 Samsung Electronics 9 1 MAIN 1 9 Schematic Diagrams ...
Page 103: ...Schematic Diagrams Samsung Electronics 9 2 9 2 MAIN 2 ...
Page 104: ...Schematic Diagrams Samsung Electronics 9 3 9 3 MAIN 3 ...
Page 105: ...Schematic Diagrams 9 4 Samsung Electronics 9 4 MAIN 4 ...
Page 106: ...Schematic Diagrams 9 5 Samsung Electronics 9 5 POWER BLOCK ...
Page 107: ...Schematic Diagrams 9 6 Samsung Electronics 9 6 DEFLECTION BLOCK ...
Page 108: ...Schematic Diagrams 9 7 Samsung Electronics 9 7 INTERFACE BLOCK ...
Page 109: ...Schematic Diagrams 9 8 Samsung Electronics 9 8 CRT BLOCK ...
Page 110: ...Schematic Diagrams 9 9 Samsung Electronics 9 9 Main Micom ...
Page 111: ...Schematic Diagrams 9 10 Samsung Electronics 9 10 AV Decoder ...
