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AC Voltage (90-264V) is rectified and filtered by BD601, C605 (See Fig 3) and the DC Output
voltage is 1.4*(AC input). (See Fig.3)
+
-
~
~
BD601
GSIB4A60-LF
3
1
2
4
+
C605
<Spec>
120U 450V
1
2
E1
Fig. 3
#3 Switching element and Isolation power transformer
When the Q601 turns on, energy is stored in the transformer. During Q601 turn-off
period, the stored energy is delivered to the secondary of transformer. R607, C607 and
D601 is a voltage-snubber circuit. R615 is current sense resistor to control output power.
(See Fig.4)
C607
1000P K
L604
45 OHM
L605
45 OHM
L608
45 OHM
R615
0.22
3
T601
350U
2
1
7
10
4
8
9
5
D602
EGP10D
A
K
D601
UF4007-LF
A
K
Q601
2SK3530-01MR
D
G
S
E4
E2
E3
E5
R607
68K J
Fig. 4
#4 Rectifier and filter
D701 and C702 C703 C704 are to produce DC V-INVERTER output. (See Fig.5)
D702 and C706 C707 C708 are to produce DC +5V output.
-
45
-
Summary of Contents for T201WA
Page 25: ...4 Disassembly Assembly 4 1 Exploded View 25...
Page 26: ...4 2 Disassembly Assembly 26...
Page 27: ...27...
Page 30: ...30 b click select Parallel...
Page 31: ...c Modify Speed to 140000 Hz in Parallel item Click device finish 31...
Page 32: ...d Follow the follow steps in turn link I2C BD power cable signal cable 32...
Page 34: ...34...
Page 53: ...6 2 TROUBLE SHOOTING GUIDE 6 2 1 No Display or display is unstable Interface Board 53...
Page 54: ...6 2 2 BUTTON function Control Board 6 2 3 OSD function 54...
Page 55: ...6 2 4 No power troubleshooting 55...
Page 59: ...59...