A13
PCB_KY2AL
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.
SeNSor ( SIde:B)
coNtroL (SIde:B)
B SIDE
IC1899
C1801
R1898
R1899
3
1
cam4
K18X-1
K18X-3
K1
8X
G
K1
8X
C
18
01
R1898
R
18
99
IC1899
K18X
MAIN
“K8D”
B SIDE
DOW
N
LEFT
RIGHT
UP
SELEC
T
LENS
ON/STAND-BY
MENU
INPU
T
SHUTTER
D6872
D6874
D6895
D6876
C6871
C687
2
C687
3
C687
4
C687
5
C687
6
C687
7
C6878
R687
1
R6872
R6873
R6874
R6875
R6876
R6877
R6878
1
10
SW6871
SW6872
SW6873
SW6874
SW6875
SW6876
SW6877
SW6878
SW6879
SW6880
D
C
GND_C
cam9
S3.3V_B
K68A_G
TPKPOWER
TPKEY21
TPKEY11
C6871
C6872
C6873
C6874
C6875
C6876 C6877
C6878
TPKEY31
SW6871
SW6872
SW6873
SW6874
SW6875
SW6876
SW6877
SW6878
SW6879
D
68
71
D
68
72
D
68
73
D6874
D
68
75
R
68
71
D
68
76
R68
72
D68
77
R
68
73
SW6880
D6878
R68
74
D6879
R68
75
R68
76
R
68
77
R
68
78
D
6880
TPKEY01
TPKEY02
TPKEY03
KEY01
KEY02
KEY03
K68A-2
K68A-3
K68A-4
K68A-5
D6895
K68A-6
K68A-7
K68A-8
K68A-9
KEY11
KEY21
KEY31
K68A
K68A
MAIN
“K8J”
Led (SIde:A)
POWER
LAMP
REPLACE
WARNIN
G
WARNIN
G
FILTER
TEMP
.
1AA4B10C7080D
PART SIDE
SHUTTER
D688
2
D688
3
D688
4
D688
5
D688
6
D688
7
D688
8
D688
9
D689
1
D689
2
R689
1
C689
1
R689
2
R689
3
R689
4
R689
5
D688
1
D689
0
R6896
9
1
K68B
MAIN
“K8H”
SOLDER SIDE
Led (SIde:B)
r/c FroNt (SIde:A)
coVer SW (SIde:A)
1AA4B10C7080B
PART SIDE
AU2801
D2851
R2853
D2852
C2854
R2851
D2853
C2852
C2853
R1691
C1691
R1692
C1692
R1693 C1693
1
4
5
8
IC1692
R2852
C2851
1
8
K28B
MAIN
“K8X”
1AA4B10C7080
C
PART SIDE
LAMP
SW1861
1
3
K18S
MAIN
“K8B”
r/c FroNt (SIde:B)
coVer SW (SIde:B)
SOLDER SIDE
AU2801
2
3
SOLDER SIDE
LAMP
SW1861
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