Panasonic PT-VX400U

PCB_KA2JC A7
RC ( SIDE:A)
RC (SIDE:B)
POWER (SIDE:A)
POWER (SIDE:B)
1LG4B10W0930C_A
A2901
1LG4B10W0930C_A
A2901
8 5
1
4
IC8811
R8847
R8848
C2901
C2902 C2903
R2901
R2903
SC2091
SC2092
1
8
C8836
K29D
HOT
COLD
1LG4B10W0950A
PARTS SIDE
SECONDARY CIRCUIT
PRIMARY CIRCUIT (LIVE)
COLD
PTH611
L611
+
-
DB611
D611
C611
L612
C612
R614
C615
L631
IC631
C632
R635
6
1
12
7
T651
D661
D662
R665
1
11
Q612
Q611
5
1
2
3
RL601
C665
C664
C661
F631
PB601A
PB601B
C642
3
1
3
1
C692
C691
C693
L661
L662
L613
L614
C613
C614
C651
C666
C674
D614
D617
D615
D633
D666
DIP
K6C
K6R
K6A
HOT
COLD
COLD
SOLDER SIDE
1LG4B10W0950A
PTH611
L611
DB611
D611
C611
L612
C612
R614
C615
L631
IC631
C632
R635
1
6
7
12
T651
D661
D662
R665
1
11
Q612
Q611
5
1
2
3
RL601
C665
C664
C661
F631
PB601A
PB601B
C642
1
3
1
3
C692
C691
C693
L661
L662
L613
L614
C613
C614
C651
C666
C674
D614
D617
D615
D633
D666
1
2
3
4
PC661
1
2
3
4
PC663
1
2
3
4
PC671
Q651
D613
R692
R675
R642
R631
R618
C623
D632
R639
R612
R680
C662
C631
ZD632
PTH641
D631
R636
R623
C641
R622
C627
R652
R615
R627
C634
D651
R611
R637
R624
R643
R633
R619
C625
R683
R625
R613
C663
D669
D612
R674
R641
R617
C653
C622
R676
R662
R644
R634
R620
R616
D664
R672
R640
R629
C671
D663
R653
Q641
R671
R628
IC671
Q622
R621
L663
R673
C621
ZD631
R684
R651
R626
C633
C626
Q642
8
5
1
4
IC621
R681
ZD633
DIP
K6R
K6C
K6A
MAIN
“K8R”
LAMP BALLAST
UNIT “X1”
MAIN
“K8D”
THERMAL FUSE
“SW902”
AC FILTER
“K6B”
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.