A9
PCB_KJ8AG
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
-
+
1LG4B10W0850A
PWB.POWER
K6D_1
K6D_2
R614
L661
L662
R6
35
C611
C612
C613
C614
C6
15
C
63
2
2
1
C65
1
C661
C664
PTH611
C665
D611
C691
C692
J60
1
J602
J603
J604
IC631
J605
J606
J607
J608
J610
D661
D662
6
1
12
7
T651
F631
+
-
DB611
L611
L612
L61
3
L61
4
Q643
L631
Q611
J609
1
11
D633
A30C5
PTH611H1
T651H11
Q611HG
C615H1
Q611HD
DB611H1
PTH611H2
T651H1
2
C615H2
T651H7
Q611HS
D611H2
L612H1
T651H1
DB611H4
L612H2
T651H5
D611H1
DIP
K6R
K6C
H
H
H
H
H
H
H
H
H
H
T6.3AH250V
F601
1LG4B10W0850B
C60
1
C602
C603
C6
04
LF601
2
1
F601A
F601B
VA601
L60
1
L601H1
L601H2
L601H3
L601H4
A30C5
LF601H
1
LF601H
2
LF601H
3
K6B
PWB.POWER
1LG4B10W0850A
+
-
K6D_2
K6D_1
R614
L661
L662
R635
C611
C612
C613
C614
C61
5
C
63
2
1
2
C651
C661
C664
PTH611
C665
D611
C691
C692
SCB5
SCB6
J60
1
J602
J603
J604
IC631
J605
J606
J607
J608
J610
D661
D662
1
6
7
12
T651
F631
DB611
L611
L612
L613
L614
Q643
L631
Q611
J609
1
11
D633
R611
R612
R613
R615
R616
L663
R621
R622
R623
R624
R625
R626
R627
R628
R629
R631
R633
R634
R636
R641
R642
R643
R644
R646
R647
R648
R651
R652
C621
C622 C623
C625
C626
R662
C627
C631
C633
C634
R671
R672
R673
R674
R675
R676
C641
C644
R683
R684
C653
C662
C663
C671
D613
D631
PTH641
D663
D664
IC671
Q641
Q642
Q651
R639
ZD633
ZD632
1
2
3
4
PC661
1
2
3
4
PC663
1 2
3
4
PC671
D632
D651
ZD631
R640
8
5
1
4
IC621
PTH611H1
T651H11
Q611HG
C615H1
Q611HD
DB611H1
PTH611H2
T651H12
C615H2
T651H7
Q611HS
D611H2
L612H1
T651H1
DB611H4
L612H2
T651H5
D611H1
A30C5
K6R
K6C
T6.3AH250V
F601
1LG4B10W0850B
C601
C602
C603
C60
4
LF601
1
2
F601A
F601B
VA601
SCB3
SCB1
SCB2
L601
R601
R602
L601H1
L601H2
L601H3
L601H4
LF601H1
LF601H
2
LF601H
3
A30C5
K6B
POWer (SIde:B)
FILTER
"K6B"
SW902
MAIN
"K8R"
FILter (SIde:A)
SW902
POWER
"K6C"
FILter (SIde:B)
1LG4B10W0850C
A2901
1
4
A30C5
K29D
1LG4B10W0850C
A2901
4
1
C290
1
C2902
C2903
R290
1
R2903
SC2901
SC2902
A30C5
K29D
1LG4B10W0850D
1
6
A30C5
K6
L
1LG4B10W0850D
SC6
1
6
R8857
1
4
5
8
IC8811
C8837
SC8836
R8856
C8833
SC8837
C8836
A30C5
K6
L
1LG4B10W0850E
1
5
A30C5
K6
S
1LG4B10W0850E
SC5
5
1
1
4
5
8
IC8831
C8830
C883
1
R881
2
R881
3
SC8831
SC8830
C881
3
A30C5
K6
S
teMP. SeNSOr C
teMP. SeNSOr A
MAIN
"K8L"
MAIN
"K8I"
MAIN
"K8D"