Circuit Operating Descriptions
13-2
Samsung Electronics
0
Vswitch
dt
Toff
t
Inverted power
by leakage
inductance
Fig. 13-2
1) Prevent residual high voltage at the terminals of
switch during switch off/Suppress noise.
High inverted power occurs at switch off,
because of the 1st winding of transformer :
(V=-L1 xdi/dt. L1 : Leakage Induction)
A very high residual voltage exist on both terminals
of IC01,IC02 - PIN 1 because dt is a very short.
2) SNUBBER circuit protects IC01,IC02 from damage
through leakage voltage suppression by RC,
(Charges the leakage voltage to D10,C12,C13
and discharges to R11,R12).
PT02 : Chrages the leakage voltage to D15,c18,c19 and
dischages to R20,R21
(c) Vcc circuit
1) R11, R12 : IC01 driving resistance (IC01 works through driving resistance at power cord in)
2) IC01 VCC: R13, D11, C11, ZD10,
IC02 VCC: D12, R16, C20, ZD11
!
Use the output of transformer as Vcc,because the current starts to flow into transformer while IC01, IC02 is
active
@
Rectify to D11, D12 and smooth to C11, C20.
#
Use the output of transformer as IC01, IC02 Vcc : The loads are different before and after IC01, IC02 driving.
(Vcc of IC01, IC02 decreases below OFF voltage , using only the resistance dut to lode increase after IC01,
IC02 driving.)
(d) Feedback Control Circuit
5.8V
L30, L33
D32
TRANS PT01
IC05
IC07
R32
R33
R34
R35
R47
R36
C39
IC01(ICE3B5065P)
D39
C35
C36, C42
Fig. 13-3
Summary of Contents for BD-P1000XEU
Page 6: ...Precautions 1 6 Samsung Electronics MEMO ...
Page 10: ...Product Specification 2 4 Samsung Electronics MEMO ...
Page 20: ...4 8 Samsung Electronics Disassembly and Reaasembly MEMO ...
Page 33: ...Samsung Electronics 6 1 6 Exploded View and Parts List 6 1 Cabinet Assembly 6 2 ...
Page 36: ...Exploded Views and Parts List 6 4 Samsung Electronics MEMO ...
Page 62: ...7 26 Samsung Electronics Electrical Parts List MEMO ...
Page 69: ...9 1 9 Wiring Diagram Samsung Electronics ...
Page 71: ...PCB Diagrams 10 2 Samsung Electronics U61 U60 U59 U56 10 1 Main PCB COMPONENT SIDE ...
Page 73: ...PCB Diagrams 10 4 Samsung Electronics CONDUCTOR SIDE ...
Page 76: ...PCB Diagrams 10 7 Samsung Electronics IC06 IC03 IC04 IC05 IC07 IC08 CONDUCTOR SIDE ...
Page 77: ...PCB Diagrams 10 8 Samsung Electronics 10 3 Front Key PCB COMPONENT SIDE ...
Page 78: ...PCB Diagrams 10 9 Samsung Electronics CONDUCTOR SIDE ...
Page 79: ...PCB Diagrams 10 10 Samsung Electronics 10 4 Memory Card PCB COMPONENT SIDE CONDUCTOR SIDE ...
Page 80: ...PCB Diagrams 10 11 Samsung Electronics 10 5 Power Key PCB COMPONENT SIDE CONDUCTOR SIDE ...
Page 81: ...PCB Diagrams 10 12 Samsung Electronics 10 6 SUB PCB COMPONENT SIDE CONDUCTOR SIDE ...
Page 110: ...Samsung Electronics 12 1 12 Operating Instructions ...
Page 111: ...Operating Instructions 12 2 Samsung Electronics ...
Page 112: ...Operating Instructions Samsung Electronics 12 3 ...
Page 113: ...Operating Instructions 12 4 Samsung Electronics ...
Page 114: ...Operating Instructions Samsung Electronics 12 5 ...
Page 115: ...Operating Instructions 12 6 Samsung Electronics ...
Page 116: ...Operating Instructions Samsung Electronics 12 7 ...
Page 117: ...Operating Instructions 12 8 Samsung Electronics ...
Page 118: ...Operating Instructions Samsung Electronics 12 9 ...
Page 119: ...Operating Instructions 12 10 Samsung Electronics ...
Page 120: ...Operating Instructions Samsung Electronics 12 11 ...
Page 121: ...Operating Instructions 12 12 Samsung Electronics ...
Page 122: ...Operating Instructions Samsung Electronics 12 13 ...
Page 123: ...Operating Instructions 12 14 Samsung Electronics ...
Page 124: ...Operating Instructions Samsung Electronics 12 15 ...
Page 125: ...Operating Instructions 12 16 Samsung Electronics ...
Page 126: ...Operating Instructions Samsung Electronics 12 17 ...
Page 127: ...Operating Instructions 12 18 Samsung Electronics ...
Page 148: ...Reference Information 14 11 Samsung Electronics 14 4 3 Roadmap of the Blu ray Disc Standard ...