9-8
Samsung Electronics
4. Disc Presence/Absense Judgment
4
Disc Presence Judgment
Turn On Laser
Does lens move
with UP/DOWN
full stroke in focus
direction?
Does lens move
with UP/DOWN
full stroke in focus
direction?
Disc is presence
No Disc
OK
Is focus search
voltage developed
at pin 11 of DU3?
Check
peripheral
circuit of MU9
Check BUS
line between
DU3 and DU5
Check connection between RU1 and RCN1.
Check BUS line RU1 and DU3.
Check RU1
N
Y
Y
Y
N
No signal
N
Normal
Summary of Contents for HT-DL70D
Page 28: ...Samsung Electronics 4 1 4 Block Diagram 4 1 MAIN Part ...
Page 30: ...Samsung Electronics 5 1 5 Printed Circuit Board Diagram 5 1 DSP TOP VIEW BOTTOM VIEW ...
Page 31: ...5 2 Samsung Electronics 5 2 1 FRONT HT DL70D ...
Page 32: ...Samsung Electronics 5 3 5 2 2 FRONT HT DL80D ...
Page 33: ...5 4 Samsung Electronics 5 3 JACK 5 4 STAND BY ...
Page 34: ...Samsung Electronics 5 5 5 5 MAIN ...
Page 35: ...5 6 Samsung Electronics 5 6 DVD MPEG 5 7 DVD LOADER TOP VIEW BOTTOM VIEW TOP VIEW BOTTOM VIEW ...
Page 36: ...Samsung Electronics 6 1 6 Wiring Diagram ...
Page 37: ...Samsung Electronics 7 1 7 Schematic Diagram 7 1 MAIN AMP PROTECTION FAN ...
Page 38: ...7 2 Samsung Electronics 7 2 FRONT DSP ...
Page 41: ...Samsung Electronics 7 5 7 5 JACK Only AMERICA area OPTION ...
Page 42: ...7 6 Samsung Electronics 7 6 JACK Only ASIA area OPTION ...
Page 43: ...Samsung Electronics 7 7 7 7 SCART JACK Only EURO area OPTION ...
Page 47: ...8 4 Samsung Electronics 4 M62463AFP ...
Page 48: ...Samsung Electronics 8 5 ...
Page 56: ...Samsung Electronics 8 13 6 M11B416256A ...
Page 58: ...Samsung Electronics 9 1 9 TroubleShooting 9 1 Main ...
Page 59: ...9 2 Samsung Electronics ...
Page 60: ...Samsung Electronics 9 3 ...
Page 61: ...9 4 Samsung Electronics ...