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A12
PCB_LV-7350, LV-7355
■
Printed Wiring Board Diagrams
Power Board (SIDE:A)
Power Board (SIDE:B)
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.
CAUTION
8
5
4
1
1
4
5
8
1
3
4
6
6
4
3
1
8
5
4
1
1
4
5
8
8
5
4
1
3
1
3
1
3
1
+
8
5
4
1
+
4
1
40
39
2
1
1
10
7
1
1AA4B10C
3250A_A
13
1
1
1
3
3
3
L693
C676
C65F
L65A
C686
C694
K6R
T651
IC631
D652
D651
C634
C642
C635
C632
D632
C639
C652
C653
C651
K6U
C630
C693
K6T
C661
L661
L691
L692
C692
C691
K6F
C659
L681
L671
R66B
R65Y
C65E
C65A
R65K
R65L
R65M
C65J
R65H
R65J
R65E
C65B
R65G
C65D
IC65A
IC681
R685
C682
R68D
R684
R68G
R68F
R68A
R68B
R68E
R68C
C683
Q68A
R68K
C681
C68A
R68H
C684
R686
R68J
C68B
C67B
R67J
R5507
D5501
R5554
R5504
D68Q
D69C
R68Q
D68P
D67P
R679
R678
R677
Q673
R676
C674
R67H
C67A
C671
R67K
Q67A
C673
R67C
R67E
R67B
R67A
R67F
R67G
R674
R67D
C672
R675
IC671
R65R
Q65D
R682
R681
R691
C656
IC651
R69S
R69R
Q65A
Q681
R671
R65A
Q5501
R5503
R5557
Q5551
R5553
D5551
IC5551
IC5501
R672
R65B
PB2
PB1
K6K
K6L
K6M
R5568
R645
C638
C69Z
R69H
Q691
R5567
Q5561
L694
C695
R69G
R69A
R69B
D69A
Q69A
R5562
R5561
R5566
R5565
R5564
R5563
D5561
IC5561
R67I
R673
C5563
L695
Q671
K6S
R63A
R63C
R63E
R637
R638
R657
R656
C641
D69B
C631
R65P
PC643
PC641
PC642
K6J
Q661
X
X
X
X
4
1
11
0
7
1
1AA4B10C3250A_A
L693
C676
C65F
L65A
C686
C694
K6R
T651
IC631
D652
D651
C634
C642
C635
C632
D632
C639
C652
C653
C651
K6U
C630
C693
K6T
C661
L661
L691
L692
C692
C691
K6F
C659
L681
L671
R65X
D661
R68I
R680
R689
Q682
R660
R659
Q651
R688
R687
R683
Q683
R5551
R5552
R5555
R5556
R5506
R5505
R5502
R5501
Q68P
R68P
R67Q
R67P
Q67P
D67Q
D69D
R670
R66A
Q66A
Q672
R663
R664
R65T
Q65B
C5553
R661
D636
R69Z
C637
R635
C640
C633
R69D
R69E
R69F
R644
R695
R696
D654
R653
R652
C5503
R692
R651
R65C
C636
C654
D653
C657
C658
R63F
R63D
R634
D631
R654
D634
R642
R640
Q641
R641
R655
R63B
R662
R69C
C655
R633
R643
C643
R636
C65G
D65B
D633
Q662
R65W
R65U
Q65C
R65V
R66C
R65Q
D65A
D681
D671
R658
Line Filter Board (SIDE:A)
Line Filter Board (SIDE:B)
P.F. Board (SIDE:A)
P.F. Board (SIDE:B)
3
1
-
+
1
3
1
1AA4B10C3250B_A
7
TSW611
D614
K6E
FB612
R614
R613
FB611
VR611
C615
C618
C612
C611
PTH611
K6C
DB611
C617
K6D
L611
FB613
Q611
X
X
X
X
1AA0B10C3250B_A
1
7
1
3
16
10
9
8
1
3
1
TSW611
D614
K6E
FB612
R614
R613
FB611
VR611
C615
C618
C612
C611
PTH611
K6C
DB611
C617
K6D
L611
FB613
Q611
R62E
R62I
R62H
Q621
Q622
R62J
R619
R62D
R618
R620
R62G
R62L
IC611
C62A
R62R
R62B
C62B
C62I
R62P
C62F
C62E
C62K
R62Q
C62J
D618
D619
D616
D617
R623
C62M
R62M
R62F
C62D
R62A
R62C
C62C
R617
R61E
R61A
R61C
R61B
R61F
R61D
R615
R616
D613
3
1
1
3
NEUT
LIVE
F601
1AA4B10C
3250C_A
TYPE:
215004
T4AH
250V
L601
K6A
VA601
K6B
F601B
F601A
C604
C603
C602
C601
L602
X
NEUT
LIVE
F601
1AA4B10C3250C_A
1
3
3
1
L601
K6A
VA601
K6B
F601B
F601A
C604
C603
C602
C601
L602
R601
R/C Board (SIDE:A)
R/C Board (SIDE:B)
1AA4B10C
3250D_A
1
4
RC2801
C2801
K28D
1AA4B10C3250D_A
RC2801
C2803
R2802
R2801
R2803
C2802
FN902
FN903
Main
Board
“K8R”
Lens
Motors
Main
Board
“K8S”
FN904
P.F. Board “K6E”
Lamp Ballast Unit “CB1”
Power
Board
“K6F”
Interlock Switch “SW904”
SW902
SW904
LF901
Main Board
“K8G”
Summary of Contents for LV-7355J
Page 9: ...Part 1 General Information ...
Page 22: ...Part 2 Repair Information ...
Page 43: ...Part 3 Adjustment ...
Page 65: ...Part 4 Troubleshooting ...
Page 82: ...Part 4 Troubleshooting 4 17 BA7078AF Selector IC6241 CXA2101AQ RGB Matrix IC4101 ...
Page 85: ...Part 4 Troubleshooting 4 20 ML60851 USB I F IC9801 M62393 D A IC2571 ...
Page 86: ...Part 4 Troubleshooting 4 21 TB1274AF Video Decoder IC1101 TA1318N AFC Detector IC6171 ...
Page 88: ...Part 5 Parts Catalog ...
Page 89: ......
Page 107: ...Part 6 Electrical Diagrams ...
Page 117: ......