A9
PCB_KJ8AC
Printed Wiring Board Diagrams
!
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.
POWer (SIde:A)
r/C
H H
H
H
H
H
H
H H
H
H
H
H
H
H
H
H
H
H
H
-
+
1LG4B10W0570A
PWB.POWER
K6D_1
K6D_2
R614
L661
L662
R6
35
C611
C612
C613
C614
C6
15
C
63
2
2
1
K6C
1
11
K6R
C65
1
C661
C664
PTH611
C665
D611
C691
C692
D633
J60
1
J602
J603
J604
IC631
J605
J606
J607
J608
J610
D661
D662
6
1
12
7
T651
F631
+
-
DB611
L611
L612
L613
L61
4
Q643
L631
Q611
A30C5
C615H2
L612H2
T651H7
Q611HG
T651H5
Q611HD
C615H1
DB611H1
PTH611H2
T651H11
D611H1
PTH611H1
Q611HS
DB611H4
T651H1
T651H12
D611H2
L612H1
DIP
H
H
H
H
H
H
H
H
H
H
T6.3AH250V
F601
1LG4B10W0570B
C601
C602
C60
3
C60
4
LF601
2
1
K6B
F601A
F601B
L60
1
VA601
L601H1
L601H2
L601H3
L601H4
A30C5
LF601H
1
LF601H2
LF601H3
PWB.POWER
1LG4B10W0570A
+
-
K6D_2
K6D_1
R614
L661
L662
R
63
5
C611
C612
C613
C614
C61
5
C
63
2
1
2
K6C
1
11
K6R
C651
C661
C664
PTH611
C665
D611
C691
C692
D633
SCB5
SCB6
J60
1
J602
J603
J604
IC631
J605
J606
J607
J608
J610
D661
D66
2
1
6
7
12
T651
F631
DB611
L611
L612
L613
L614
Q643
L631
Q611
R611
R612
R613
R615
R616
L663
R621
R622
R62
3
R62
4
R62
5
PC661
R62
6
PC663
R62
7
R62
8
R629
R631
R633
R63
4
PC671
R636
R641
R64
2
R643
R644
R646
R64
7
R64
8
R651
R65
2
C621
C622 C623
C625
C626
R66
2
C627
C631
C633
C634
R671
R672
R67
3
R67
4
R67
5
R676
C641
C644
R68
3
R684
C653
C662
C663
C671
D613
D631
D632
PTH641
1
4
8
5
IC621
D651
D663
D66
4
IC671
ZD631
Q641
Q642
Q651
C615H2
L612H2
T651H7
Q611HG
T651H5
Q611HD
C615H1
DB611H1
PTH611H2
T651H11
D611H1
PTH611H1
Q611HS
DB611H4
T651H1
T651H12
D611H2
L612H1
A30C5
T6.3AH250V
F60
1
1LG4B10W0570B
C601
C602
C603
C604
LF601
1
2
K6B
F601A
F601B
L601
VA601
SCB3
SCB1
SCB2
R601
R60
2
L601H1
L601H2
L601H3
L601H4
LF601H
1
LF601H
2
LF601H
3
A30C5
POWer (SIde:B)
FILTER
"K6B"
SW902
MAIN
"K8R"
FILter (SIde:A)
SW902
POWER
"K6C"
FILter (SIde:B)
1LG4B10W0570C
A2901
1
4
K29
D
A30C5
1LG4B10W0570C
A2901
4
1
K29
D
C290
1
C2902
C2903
R290
1
R2903
SC2901
SC2902
A30C5
1LG4B10W0570D
K6L
1
6
A30C5
1LG4B10W0570D
SC6
K6L
1
6
R8857
1
4
5
8
IC8811
C8837
SC8836
R8856
C8833
SC8837
C8836
A30C5
1LG4B10W0570E
1
5
K6S
A30C5
1LG4B10W0570E
??? ***
SC5
5
1
K6S
1
4
5
8
IC8831
C883
0
C883
1
R881
2
R881
3
SC8831
SC8830
C881
3
A30C5
teMP. SeNSOr C
teMP. SeNSOr A
MAIN
"K8L"
MAIN
"K8I"
MAIN
"K8L"
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