
Samsung Electronics
9-11
3. PickUp Head Initial Postion
PickUp Head Initial Postion
1. Move Pick Up Head to inner diretion until pin5 of MJ4="L"
2. If pin5 of MJ4="L", then move Pick Up Head to outer diretion for a short time.
3. Ture On the Laser of Pick Up Head to judge that disc is presence or not.
3
Does Pick Up
Move to inner
direction?
Is pulse of 2.5
+-2.5V developed
at pin3,4 of MJ4?
Check
connection
between PCB
and MECHA
Is pulse of 2.5
+-2.5V developed
at pin13 of DU3?
Does Pick Up
Move to out
direction again?
Is pin5 of MJ4 =
"L" appeared?
Does Laser Turn
On?
Check voltage at
pin17 of RCN1 is
about 2.5V?
Check BUS line between RU1 and
DU3,DU3 and DU5
Replace Pick Up Head
Check line between DU3
and MJ4
Check
peripheral
circuit of DU3
and MU9
Check BUS
line between
DU3 and DU5
Check
connection
between PCB
and MECHA
OK
N
Y
N
Y
N
Y
Y
N
Y
N
Y
N
N
Содержание HT-DM150
Страница 5: ...8 4 Samsung Electronics 4 M62463AFP ...
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Страница 14: ...Samsung Electronics 8 13 6 M11B416256A ...
Страница 16: ...Samsung Electronics 8 15 8 3 HT DM150 550 MICOM PORT ASSIGNMENT ...
Страница 18: ...Samsung Electronics 9 1 9 TroubleShooting 9 1 1 Main HT DM150 ...
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Страница 35: ...Samsung Electronics 2 1 2 Exploded Views and Parts List 2 1 1 Total Exploded View HT DM150 ...
Страница 37: ...Samsung Electronics 2 3 2 1 2 Total Exploded View HT DM550 ...
Страница 63: ...Samsung Electronics 4 1 4 Block Diagram 4 1 MAIN Part HT DM150 ...
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Страница 66: ...Samsung Electronics 7 1 7 Schematic Diagram 7 1 1 MAIN HT DM150 ...
Страница 67: ...7 2 Samsung Electronics 7 1 2 MAIN HT DM550 ...
Страница 68: ...Samsung Electronics 7 3 7 2 1 FRONT POWER HT DM150 ...
Страница 69: ...7 4 Samsung Electronics 7 2 2 FRONT POWER HT DM550 ...
Страница 70: ...Samsung Electronics 7 5 7 3 DSP ...
Страница 72: ...Samsung Electronics 7 7 7 5 DVD Backend Parts ...
Страница 73: ...7 8 Samsung Electronics 7 6 JACK SCART RCA HT DM150 550 ...
Страница 77: ...8 4 Samsung Electronics 4 M62463AFP ...
Страница 78: ...Samsung Electronics 8 5 ...
Страница 84: ...Samsung Electronics 8 11 3 M6759 8BIT MTP micro controller 4 M5701 M5705 DVD ROM controller M5701 M5705 ...
Страница 86: ...Samsung Electronics 8 13 6 M11B416256A ...
Страница 88: ...Samsung Electronics 8 15 8 3 HT DM150 550 MICOM PORT ASSIGNMENT ...
Страница 89: ...ELECTRONICS Samsung Electronics Co Ltd JULY 2002 Printed in Korea Code no AH68 01107V ...