Panasonic PT-TW230U

PCB_KW4AC DIA-9
RC ( SIDE:A)
RC (SIDE:B)
POWER (SIDE:A)
POWER (SIDE:B)
1LG4B10W1110C
??? ***
1
4
K29D
A2901
1LG4B10W1110C
??? ***
4
1
K29D
A2901
C2901
C2902
C2903
R2901
R2903
SC2901
SC2902
*** ???
+
1LG4B10W1110A
PWB.POWER
K6D_1
-
K6D_2
HOT
COLD
COLD
COLD
HOT
PARTS SIDE
+
-
DB611
C611
C612
C632
C613
C614
C651
C665
D661
D662
D616
D617
L611
IC631
L613
L614
L631
5
1
2
3
RL601
1
11
K6R
3
1
K6C
6
1
12
7
T651
PTH611
Q611
D611
C615
C664
F631
C636
R635
R614
L612
C661
SCB6A
SCB6B
C691
C692
D614
D633
L661
L662
DIP
+
K6D_1
*** ???
PWB.POWER
-
K6D_2
1LG4B10W1110A
COLD
HOT
COLD
COLD
HOT
HOT
SOLDER SIDE
DB611
C611
C612
C632
C613
C614
C651
C665
D661
D662
D616
D617
L611
IC631
L613
L614
L631
5
1 2
3
RL601
1
11
K6R
1
3
K6C
1
6
7
12
T651
PTH611
Q611
D611
C615
C664
F631
C636
R635
R614
L612
C661
SCB6A
SCB6B
C691
D614
D633
L661
L662
R640
R642
R651
R671
R675
R611
R612
R653
Q651
Q642
C641
Q641 R641
C626
R626 R625
D613
R643
R644
R613
8
5
1
4
IC621
C625
R624
R629
R628
C623
R627
C622
R621
R622
R616
C627
C621
R623
R615
D643
R633
R631
C631
D641
R634
C634
R636
C633
D632
C653
R639
R652
D651
D642
R637 R647
D631
Q622
1 2
34
PC663
1 2
3
4
PC671
D663
D664
L663
R672
C663
R676
IC671
C671
R674 R683
R673
R684
D669
R662
R680
C662
PTH641
1
23
4
PC661
R692
C643
R630
R610
D644
R693
MAIN
“K8R”
AC
FILTER
“K6B”
LAMP BALLAST
UNIT “CN1”
MAIN “K8D”
Circuit Boards Diagram
! 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.
THERMAL FUSE
“SW902”