A9
PCB_KA2AC
Printed Wiring Board Drawings
!
cAutIoN
This projector is isolated from AC line by using the internal converter transformer.
Please pay attention to the following notes in servicing
1. Do not touch the part on hot side (primary circuit) or both parts on hot and cold
sides (secondary circuit) at the same time.
2. Do not shorten the circuit between hot and cold sides.
3. The grounding lead must be connected to the ground of the same circuit when
measuring of voltages and waveforms.
rc ( SIde:A)
rc (SIde:B)
PoWer (SIde:A)
PoWer (SIde:B)
1LG4B10W0720
C
***.???
A2901
SCREW4
SCREW5
A30C5
A2901
8
5
1
4
IC881
1
R8847
R8848
C2901
C290
2
C290
3
R290
1
R290
3
SCREW1
SCREW2
SC2091
SC2092
K29D
1
8
C8836
1LG4B10W0720
C
PARTS SIDE
*** ???
1LG4B10W0710A
PRIMARY CIRCUIT (LIVE)
SECONDARY CIRCUIT
R635
C611
C612
C614
C615
C632
C651
PTH611
C665
D611
C691
C692
IC631
D661
D662
6
1
12
7
T651
Q611
Q612
L612
Q643
L631
C613
R614
C693
D666
D633
+
-
DB611
L611
SCB10
SCB9
R665
1
11
K6R
3
1
K6A
3
1
K6C
F631
C66
1
L613
L614
L662
C664
L661
C
6
6
6
C674
A30C5
DIP
SOLDER SIDE
1LG4B10W0710A
??? ***
R635
C611
C612
C614
C615
C632
C651
PTH61
1
C665
D611
C691
C692
IC631
D66
1
D662
1
6
7
12
T651
Q611
Q612
L612
Q643
L631
C613
R614
C693
D666
D633
DB611
L611
R665
1
11
K6R
1
3
K6A
1
3
K6C
F631
C66
1
L613
L614
L662
C664
L661
C666
C674
Q661
R61
1
R612
R613
R61
5
R61
6
R617
L663
R618
R619
R620
R621
R
6
2
2
R623
R
6
2
4
R
6
2
5
R
6
2
6
R
6
2
7
R
6
2
8
R629
R63
1
R632
R633
R634
R636
R
6
3
7
R638
R641
R
6
4
2
R
6
4
3
R644
R646
R648
R65
1
R652
C62
1
C622
C623
C625
C626
R662
C627
C629
C
63
1
C633
C634
R671
R
6
7
2
R
6
7
3
R
6
7
4
R
6
7
5
R
6
7
6
C64
1
C644
R
6
8
3
R
6
8
4
C653
R
6
9
2
R
6
9
3
C662
C663
C67
1
D612
D613
D63
1
PTH641
SCB6
D663
D664
IC67
1
Q621
Q622
ZD631
Q641
Q642
Q65
1
R653
1
4
8
5
IC621
SCB7
1
2
3
4
PC661
1
2
3
4
PC663
1
2
3
4
PC671
ZD632
R640
R639
D632
D65
1
A30C5
DIP
MAIN
“K8R”
FILTER
“K6B”
THERMAL SW
SW902
LAMP BALLAST
UNIT “X1”
MAIN
“K8D”
Содержание PLC-XU4000
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