Eiki LC-XB42, Service Manual

Page: 107 / 110

A9
PCB_KG3AC
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 measur-
ing of voltages and waveforms.
LINE FILTER ( SIDE:A)
F601
1AA4B10C5890B_X
A SIDE
TYPE215008
T8AH250V
F601A F601B
C601
K6AA
2
1
K6AB
L601
C602
VA601
A30C
5
LINE FILTER (SIDE:B)
B SIDE
F601
F601A
F601B
C60
1
K6AA
1
2
K6AB
L601
C602
VA601
R600
R601
A3
0C
5
POWER
“K6AC”
LF901
THERMAL SW
SW902
AV (SIDE:A)
AV (SIE:B)
1LG4B10W0140C_
A
A SIDE
(1st Reflow)
A30C5
R/CS (SIDE:A)
R/CS (SIE:B)
B SIDE
(2nd Reflow)
A2901
D2901
C2901
C2902
R2901
R2902
D6834
D2902
1 4
K29
D
C
29
03
A30C5
+
MAIN
“K8D”
1LG4B10W
0140D
A SIDE
(1st Reflow)
1 4
5
8
IC4831
1
4
K48E
C4831
C
48
32
C4833
R4831
R483
2
R483
3
R483
5
C4834
TEMP. (SIDE:A)
TEMP. (SIDE:B)
B SIDE (2nd Reflow
)
A2901
D290
1
C290
1
C2902
R290
1
R2902
D683
4
D2902
1
4
K29D
C29 03
A30C5
+ MAIN
“K8E”
1AA4B10C5900A_X
A SIDE
A
A
K20
A
K20B
K20C
K20
D
20
19
2
1
K300
L2001
L2011
L2021
L2031
L2051 L2052 L2056 L2057
L2061
L2062
C2006
C2007
R2001
R200
3
R2008
C2031
R2009
R2011
R201
2
R202
1
R2022
D203
1
R2031
C
20
61
C2062
R2051 R2052
R2056 R2057
R206
1
R206
2
R2063
R2064
SC2001
SC2011 SC2021 SC2031
SC2051 SC2052
SC2056
SC205
7
SC2058
SC2059
A30C5
B SIDE
K20A
K20B
K20C
K20D
A30C5
MAIN
“K200”