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Printed Wiring Board Diagrams
A/V (SIDE:A)
C2001
K50A
K20A
C2002
K50B
A/V (SIDE:B)
A30C5
1AA4B10C6720B
SC9701
R9701
SC3804
C9701
K38A
K97A
FAN NEt (SIDE:A)
FN904
FN905
K77E
K77D
1
3
1
3
D7704
D7705
FN903
R7703
L7703
C7706
C7703
L7706
R7706
D7706
FN902
A30C5
SC002
R7702
L7702
C7702
SC001
1AA4B10C6720H
PWB,FANNET KG8AC
MAIN
"K8B"
L702
L703
L704
L706
L707
C701
L701
R4751
L4752
L4756
1 2
C4751
L4751
1
5
K47B
K47A
SW901
PCB_KG8AC
MAIN
"K96B"
30
2
K96A
A30C5
1
29
1AA4B10C6720B
PWB,A/V KG8AC
K50C
K97A
K38A
R2003
R2007
R2011
C2004
K50B
K50A
K20A
K50C
FN906
SP901
KEY
"K68A"
LAMP BALLAST
"CN2"
This projector is isolated from AC line by using the internal converter transformer.
Please pay attention to the following notes in servicing
1. D o not touch the part on hot side (primary circuit) or both parts on hot and cold
2. Do not shorten the circuit between hot and cold sides.
3. T he grounding lead must be connected to the ground of the same circuit when
KEY (SIDE:A)
POWER
WARNING
LAMP
3D
ON/STAND-BY
AUTO SETUP
KEYSTONE
MENU
KEY (SIDE:B)
D2802
R2802
C2803
D2801
C2802
C2801
R2801
tEMP SENSOr1 (SIDE:A)
tEMP SENSOr2 (SIDE:A)
MAIN
"K8E"
5
1
R8807
R8808
R8809
R8917
R8914
4
R8913
1
R8918
6
R8919
8
5
9
5
8
13
1
14
16
IC8911
C8912
C8911
! CAutION
sides (secondary circuit) at the same time.
measuring of voltages and waveforms.
FAN NET
"K07B"
UP/
ZOOM+
RIGHT/
LEFT/
VOL+
VOL-
SELECT
DOWN/
ZOOM-
Q2813
tEMP SENSOr2 (SIDE:B)
MAIN
"K8H"
K88H
1
4
1AA4B10C6720G
TEMP SENSOR2
2
30
K68A
1
29
Q2816
1
8
R8819
R8811
R8812
R8817
4
5
IC8811
C8811
R8816
R8814
R8813
A30C5
A9
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