DIA-3
SCH_KW4AC
CN3
1
1
2
3
4
4
CO
M
NO
NC
K0KACA000041
SW901
1
2
3
FN902
L6FCYYYH0148
FN903
L6FCYYYH0150
FN907
1AV4M10B50300
FN904
L6FCYYYH0148
1
2
CN1
1
2
1AV4M10B50300
FN906
CN2
1
5
1
1
2
2
K1KA05BA0014
K8H
1
5
K1KA11B00083
K8R
11
1
2
3
4
10
5
6
7
8
9
K1KA03BA0050
K8F
:K1KY03BA0351
1
SP+
2
N.C.
3
SP-
FN901
L6FCYYYH0150
K1KA03AA0104
K6J
1
2
3
FN905
L6FCYYYH0150
K1KA03AA0104
K6F
1
2
3
K1KA03AA0104
K6G
1
2
3
K1KA03AA0104
K6E
1
2
3
K1KA03BA0331
K6K
1 FAN_C
2
3
K1KA03BA0045
K6P
1 FAN_B
2
3
K1KA03BA0045
K6Q
1 FAN_B
2
3
K1KY02BA0350
K8S
1
2
K1KA06BA0047
K8L
1
2
3
4
5
6
K1KA05BA0047
K8I
1
2
3
4
5
K1KA04BA0047
K8D
1
4
K1KA04AA0104
K8K
1
2
3
4
K5B094YY0002
SW902
1
2
K6D_2A
K6D_1A
2
1
S6V
S-5V
S16V
LAMPDC_ON
POWER_SW
K6D_1A
4AA4Z20051---
L614
K6D_2A
4AA4Z20051---
L613
F1H1H104A798
C641
B0HAGV000001
D633
B0FAAR000015
D611
D0YBR0000029
R633
F1H1H221A792
C631
B0BC8R100004
D641
RGF3300DTCANL
R622
MR4010
IC631
Z/C
1
FB
2
GND
3
VCC
4
EM 5
7
Vin
9
CO
F1H1H473A798
C622
D4CAB5R00002
PTH611
D0GF684ZA029
R615
CE1E101M4TALC
C651
B1ABCF000004
Q642
RGF8201DTCANL
R621
B0HCMM000019
D651
F1H1C474A118
C621
:16KK0.47LBYA
:F1H1C474A071
D0GB103JA089
R627
B0FBBR000078
DB611
F0CZZ105A151
C614
D0GB473JA089
R613
D0GB103JA089
R651
F1H1H102A831
C633
F1H1E1050001
C626
:F1H1E105A116
D0GF684ZA029
R616
F1B3A102A085
C612
F1H1H103A798
C623
RGK3603JTFANL
R612
RGK4303JTFANL
R611
B0HCMM000019
D632
F1H1H222A798
C627
D0GB113JA089
R631
F1H1H222A798
C634
D0GN750ZA006
R652
K6C_2A
C615_A
C615_B
F1H1H104A913
C663
:F1H1H104A798
F1H1H104A913
C662
:F1H1H104A798
GND
CE1C471M5DANN
C665
GND
4AA4Z20051---
L662
B0JBSG000059
D662
J0JHC0000080
L663
B0HCLM000002
D663
:B0HCMM000019
C661_2
GND
C664_2
GND
4AA4Z20051---
L661
C664_1
GND
GND
GND
B1ADCF000195
Q651
B3PBA0000575
PC661
:DCTLP421F-GRP
:B3PAA0000601
1
2
3
4
D0GB331JA089
R662
B3PBA0000575
PC671
:DCTLP421F-GRP
:B3PAA0000601
1
2
3
4
F1H1H104A798
C671
GND
GND
D0GB472JA089
R675
D0GB102JA089
R672
D0GB122ZA068
R676
D0GB332ZA068
R684
D0MA75MKA002
R614
GND
B0ACCK000005
D613
:B0ACDJ000007
D0GB103JA089
R628
K5G252YA0109
F631
ZZ0122
L631
B1ABCF000004
Q641
D0GB103JA089
R643
F1H1H103A798
C625
1/16GJ
PTH641
G4DYA0000315
T651
2
3
5
6
7
8
10
9
11
1
12
D0GB103JA089
R641
D0GB103JA089
R644
C0DBCYY00131
IC621
1
FB
2
COMP
3
MUL
4
IS
5
SLOPE
6
GND
7
OUT
8
VCC
C0DBEYY00070
IC671
D0GB391ZA068
R683
D0GB123ZA068
R673
D0GB223JA089
R636
D0GB333JA089
R634
D0GB221JA089
R62
4
B0JBSK000017
D661
F1H1H104A748
C653
:F1H1H104A913
D0GB514JA089
R629
B0JCGD000002
D664
K6C_1A
K6R_8
K6R_6
K6R_3
K6R_2
K6C_2B
K6C_1B
K6R_1
GND
K1KA11AA0194
K6R
1
1
2
3
4
5
6
7
8
9
10
11
11
CE1E182M5FANN
C661
B3PBA0000575
PC663
:DCTLP421F-GRP
:B3PAA0000601
1
2
3
4
B0ACCK000005
D631
:B0ACDJ000007
F2A1A152B444
C664
RGF4700DTCANL
R623
K6R_11
F1B3A102A085
C611
B0BC03600024
D642
RGK2201JTFANL
R639
B0BC03600024
D643
K6A1AYY00004
RL601
GND
B0EAKV000017
D616
B0EAKV000017
D617
DDEU2A------N
D614
F2A2W150A224
C636
D0YBR0000029
R680
2EAF0208--
SCB6B
1
2
3
D0GB333JA089
R637
D0GB103JA089
R647
B1ABCF000004
Q622
RL601_1
RL601_2
RL601_3
F1B3D471A084
C632
D0GB272ZA068
R674
B0HCMM000019
D669
D0YBR0000029
R640
RSXAV1R39JDAK
R635
B1DEHQ000017
Q611
G0C720Z00004
L611
F0CZZ105A151
C613
F2B2W151A083
C615
1
2
D0GN750ZA006
R653
F1AAF152A017
C692
F1AAF152A017
C691
K1KA02A00676
K6C
1
2
D0GB331JA089
R692
D0GB224JA089
R642
F1H1H104A798
C643
1LB4L26B1570N
L612
1
2
D0GZR00J0005
R630
D0GZR00J0005
R610
D0GB470JA089
R626
D0GB221JA089
R625
D0GB122JA089
R671
F601 6.3A250V
F.G.
(LIVE)
(LIVE)
21506.
3
:50CT063
H
F601A
K3GE1YA00011
F601B
K3GE1YA00011
K6B_1A
K6B_2A
K2AHYB000004
LF601
1
2
3
K6A_2A
K6A_1A
K6A_
G
K6A_2B
K6A_1B
GN
D
G0B173H00003
L601 1
2
3
4
GN
D
D4EAY6210004
VA601
1
2
K1KA02A00676
K6
B
1
2
F1AAF4710001
C603 250
F1AAF4710001
C604 250
RGA5603JTDAN
L
R602
RGA5603JTDAN
L
R601
K5D632YYA068
F601
G0B502J00004
L602
1
2
3
4
K6B_2B
K6B_1B
F0CAF1050003
C601
3.3V
R/C PRE AMP
F1J0J106A004
C2903
:F1J0J106A020
D0GB101JA089
R2903
X
SC2902
1
2
X
SC2901
1
2
K29D_1
K29D_3
K29D_4
K1KA04BA0061
K29D
1
4
F1H1H471A792
C2902
F1H1E105A100
C2901
RGG47R0JTCANL
R2901
B3RAD0000196
A2901
1
2
3
1
0
1
1
0
ADDRESS
0
SENSORA 0
0
SENSORC
1
A0 A1
SENSORB
A2
X
C8836
D0GB100JA089
R8857
D0GB100JA089
R8856
X
C8837
S3.3V
C0ZBZ0001875
IC8811
1
SDA
2
SCL
3
OS
4
GND
5
A2
6
A1
7
A0
8
VDD
X
SC8836
1
2
X
SC8837
1
2
K6L_1
K6L_2
K6L_3
K6L_4
K1KA06BA0061
K6L
1
2
3
4
5
6
F1H1E105A100
C8833
1
1
0
SENSORB
SENSORA
A1
1
0
A2
0
0
ADDRESS
1
SENSORC
A0
0
X
C8830
D0GB100JA089
R8813
X
C8831
D0GB100JA089
R8812
S3.3V
C0ZBZ0001875
IC8831
1
SDA
2
SCL
3
OS
4
GND
5
A2
6
A1
7
A0
8
VDD
X
SC8831
1
2
X
SC8830
1
2
K6S_4
K6S_3
K6S_2
K6S_1
K1KA05BA0061
K6S
1
2
3
4
5
F1H1E105A100
C8813
TO IC301
K0H1BA000255
SW6803
:K0F111A00603
12
34
K0H1BA000255
SW6808
:K0F111A00603
12
34
D0GA332JA028
R6801
D0GA392JA028
R6808
D0GA332JA028
R6809
3.3V_ALL
K0H1BA000255
SW6810
:K0F111A00603
12
34
K0H1BA000255
SW6804
:K0F111A00603
12
34
K0H1BA000255
SW6806
:K0F111A00603
12
34
K0H1BA000255
SW6801
:K0F111A00603
12
34
D0GA682JA028
R6807
K0H1BA000255
SW6811
:K0F111A00603
12
34
K0H1BA000255
SW6807
:K0F111A00603
12
34
D0GA153JA028
R6806
K0H1BA000255
SW6809
:K0F111A00603
12
34
D0GA392JA028
R6811
KEY_3
KEY_1
KEY_2
3.3V_ALL
K6H_4
K1KA04BA0047
K6H
1
2
3
4
38
1
38
K5B
J11EB363G
GND
1
GND
S6V
K5G
J11EB363G
S-5V
SP+
1
38
1
SP-
38
GND
1
K5R
J11EB363G
GND
LAMP_DC_ON
1
PROJECTION LENS
38
S16V
38
5V
LAMP_DET
ECO
LAMP_SW
GND
LAMP_DET
5V
GN
D
LAMP_SW
EC
O
S6V
S16V
POWER_SW
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A
B
C
D
E
F
G
H
I
J
K
L
A
B
C
D
E
F
G
H
I
J
K
L
KW4AC -01
COLD
HOT
POWER
IC621
FA5550N
IC631
MR4010
LAMP
BALLAST
MAIN
B
LCD
PANEL
R
LCD
PANEL
G
LCD
PANEL
R-PNL
A901
G-PNL
G-PNL
P-RIGHT
P-LEFT
P-DOWN
P-UP
MENU
INPUT
ENTER
KE STON E
POWER
B-PNL
LAMP IN
EXHAUST
SIDE
POWER
EXHAUST
SIDE
LAMP
TEMP SENSOR A
KEY SW
TEMP SENSOR C
R/C
TEMP SENSOR A
(ROOM)
TEMP SENSOR C
(LAMP)
IC8811
MCP9801T-M
IC8831
MCP9801T-M
POWER FACTOR CORRECTION
TA76L431FB
IC671
LP900
LAMP COVER SW
SP
LINE FIL
TER
Schematic Diagrams
Indication of Signals
Power Failure, Fan Failure Detection Signals
- NO POWER when one of those signals detects a failure.
Power Drive, Fan Drive Signals
- NO POWER when one of those signals has a failure.
Switch Signals [AV switch, Mute, etc]
- NO PICTURE or NO SOUND when one of those signals
has
a failure.
CAUTION
Components indicated by a mark
!
in this schematic diagram have the
special significance in the safety. It is therefore, particularly recommended
that the replacement of those parts must be made by exactly the same parts.
Must be used with a specified fuse. Unauthorized substitutions may result in
fire or accident.
This projector is isolated from AC line by using the internal converter trans-
former. Please pay attention to the following notes in servicing.
1. Do not touch the part on hot side (primary circuit) or both parts on the 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 the voltages and waveform.