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Circuit Board Diagram
RC REAR (SIDE:A)
PARTS SIDE
A2801
K28A
D2802
MAIN
R2801
"K28D"
C2801
PWB, RC REAR KT2A
1AA4B10C7050C
CONTROL (SIDE:A)
MAIN
"K68B"
K68A
ON/STAND-BY
SW6822
LIGHT
D6818
R6886
SW6806
SHUTTER
SW6801
SW6802
D6801
D6811
D6806
ZOOM
FOCUS
LENS SHIFT
SW6811
SW6812
D6802
D6807
UP
MENU
SW6813
SW6826
D6803
D6808
D6813
LEFT
SELECT
RIGHT
SW6803
SW6816
D6804
D6809
AUTO PC ADJ.
DOWN
INFORMATION.
LX1750 Service Manual
020-000643-01 Rev.1 (01-2014)
RC REAR (SIDE:B)
SOLDER SIDE
A2801
CONTROL (SIDE:B)
R6821
D6816
KEY13
KEY01
SW6821
R6833
KEY02
SW6823
R6819
R6841
R6892
KEY03
SW6824
D6812
INPUT
KEY04
R6893
R6842
SW6814
SW6804
D6814
R6816
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.
K68A_13
K68A_3
K68A_5
K68A_7
K68A_10
K68A_1
K68A_2
K68A_4
K68A_11K68A_12
K68A_9
R6826
R6831
KEY11
C6819
R6880
R6875
D6828
KEY12
R6801
KEY14
CAUTION
RC-LED (SIDE:A)
A2821
C2813
K28B
1
13
1AA4B10C7050B
PWB, RC-LED KT2A
PARTS SIDE
MAIN
"K28C"
RC-LED (SIDE:B)
A2822
SOLDER SIDE
A2821
DIA-15
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