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Model
PT-LB80NTU PT-LB80NTE PT-LB80NTEA PT-LB80U PT-LB80E PT-LB80EA PT-LB75NTU PT-LB75NTE PT-LB75NTEA PT-LB75U PT-LB75E PT-LB75EA
Pages
118
Size
12.86 MB
Type
PDF
Document
Service Manual
Brand
Device
Projector / LCD PROJECTOR
File
pt-lb80ntu-pt-lb80nte-pt-lb80ntea-pt-lb80u-pt-lb80.pdf
Date
PREV: Panasonic PT-LB60NTU / PT-LB60NTE / PT-LB60NTEA / PT-LB60U / PT-LB60EA / PT-LB55NTE / PT-LB55NTEA / PT-LB55EA Service Manual

Panasonic PT-LB80NTU / PT-LB80NTE / PT-LB80NTEA / PT-LB80U / PT-LB80E / PT-LB80EA / PT-LB75NTU / PT-LB75NTE / PT-LB75NTEA / PT-LB75U / PT-LB75E / PT-LB75EA Service Manual ▷ View online

10 Interconnection Block Diagram
10.1. Interconnection Block Diagram (1/2)
Interconnection Block Diagram (1/2)
B-Module
Q-Module
B/Q-Module
K-P.C.Board
S-Module
Z-P.C.Board
M2-P.C.Board
M1-P.C.Board
M1-P.C.Board
WL-P.C.Board
P-Module
PT-LB80NT**/LB75NT** only
PT-LB80NTU / PT-LB80NTE / PT-LB80NTEA / PT-LB80U / PT-LB80E / PT-LB80EA / PT-LB75NTU / PT-LB75NTE / PT-LB75NTEA / PT-LB75U / PT-LB75E / PT-LB75EA
41
10.2. Interconnection Block Diagram (2/2)
Interconnection Block Diagram (2/2)
A-P.C.Board
PT-LB80NTU / PT-LB80NTE / PT-LB80NTEA / PT-LB80U / PT-LB80E / PT-LB80EA / PT-LB75NTU / PT-LB75NTE / PT-LB75NTEA / PT-LB75U / PT-LB75E / PT-LB75EA
42
11 Block Diagram
11.1. Power Supply
Power Supply
FAN 14 V
STB 3.4 V
G
G
3
4
1
B1
B4
Q2
K2-P.C.Board
K1-P.C.Board
B-Module
B/Q-Module
P-Module
Q-Module
 (CONTROLLER)
STEP-DOWN CHOPPER
Power  Cord
AC IN
K4
K5
F9101
D9101
4
P3
5
7
11
HOT
COLD
HOT
COLD
PHOTOISOLATOR
15 V AVR
SWITCHING
TRANSFORMER
SWITCHING
REGULATOR
PHOTOISOLATOR
POWER
FACTOR
CORRECTION
LAMP
D9608
Q9608
D9609
Q9610
Q204
Q9611
Q9606
Q9607
IC9602
IC9603
D9611
Q9609
D9612
PWON
3.4 V
DC380 V
THERMOFUSE
Power Control
ST1
Lamp ON/OFF
L det
+6 V
+17 V
9
1
3
4
1
P2
P1
PHOTO-
ISOLATORS
D9604
Q9604
Q9614
L9604
C9610
D9601
Q9603
D9605
L9605
C9617
C9618
D9606
D
S
Q9605
D9607
B3
B6
B5
Q1
3
6
1
4
2
Q3
Vla ckeck
7
Information Select
5
LINE
FILTER
LINE
FILTER
15 V
15 V
4
2
INTERLOCK
SWITCH
G
D
S
G
D
S
D
S
G
G
Q107
A-P.C.Board
A4
RECTIFIER
D
S
D
S
HALF BRIDGE
DRIVER
(MASTER)
HALF BRIDGE
DRIVER
(SLAVE)
Q203
Q202
IC202
K3
K2
K1
SW
SW
4
2
1
2
4
1
18 V
MAIN/STBY
STB 3.3 V
STB 14 V
6 V
3.3 V
FAN 4-13.5 V
A6
A7
A9
A5
Z1
to C
from C
1
3
1
3
A-
P.C.Board
Z-P.C.Board
DIRECT POWER OFF
+
for
Exhaust
Fan
(
)
PT-LB80NTU / PT-LB80NTE / PT-LB80NTEA / PT-LB80U / PT-LB80E / PT-LB80EA / PT-LB75NTU / PT-LB75NTE / PT-LB75NTEA / PT-LB75U / PT-LB75E / PT-LB75EA
43
11.2. Signal Processing (1/3)
Signal Processing (1/3)
MCLK
SCLK
COMPUTER 1 
OUT AMP.
PnP
ADAPTER
IC1024
SW
Q1011
BLSTON
ST1
Q1018
AUDIO AMP
IC1026
IC1092
COMPUTER
1 IN
R
G
B
1
2
3
12
13
14
15
1
2
3
12
13
14
15
SCL
SDA
HD
VD
AUDIO
IN
L
R
RESIZING,
MICROPROCESSOR
S-VIDEO
IN
C
Y
VIDEO IN
Q1012-
Q1016
IC1020
WL_AUDIOR
WL_AUDIOL
AUDIOSEL1
AUDIOSEL2
SDA2
SCL2
TXD
RXD
MUTE
G
R
G
G
G
G
B
G
R
B
COMPONENT
2 IN / 1 OUT
R
G
B
HD
HD
HD
VD
VD
VD
HD
VD
RGBSEL
RGBIO
POCLK
CCSEL1
LAMP
A19
FANSENS1
FANSENS3
FANSENS4
FANSENS5
FANSENS2
INTAKE
(R, B)
A18
INTAKE
(G)
A15
EXHAUST
A17
LAMPSENSE
MAIN/STBY
POWER
A16
P-Module
P3
Q-Module
Q3
A6
PWMOUT
WLADET
A4
64M SDRAM
IC1001
IC1005
IC1006
G B
R
3
2
3
3
2
5
6
7
A-P.C.Board
IC1083
POCLKO
IC1016
X1001
CLOCK
GENERATOR
ACCELERATION
SENSOR
A/D CONVERTER,
VIDEO DECODER
S/C
_IN
VD CVBS
HD
SOY
SOG
S/Y
_IN
PnP
ADAPTER
IC1002
IC1080
Q1021
Q1020
CCSEL1
CCSEL2
SYNCSEL
IC1109
PLLHS
PIVS
IC1025
SCL
SDA
SYNC.
SELECT
3
IC1060
COMPUTER 
2 IN / 1 OUT
CONTROL
IC1097
CLOSED
CAPTION
DECODER
FAN CONTROL
DRIVER
SPA1
SCL1
BUFFER
BUFFER
REMO1
REMO2
3
2
3
3
SDA2
SCL2
EEPROM
SW
Q1010
IC1017
IC1018
IC1102
IC1101
BUFFER
IC1098
SW
ST2
RESET
OUTPUT
SYNC ENABLE
8 9 10 11
12 13 14 15 16
17
18
19
from/to (3/3)    
4
1
BUFFER
IC1099
CC1-CC3
SWITCHES
Q1022-Q1024
Only for PT-LB80NTU/
LB80U/
LB75NTU/
LB75U
VIDEO SELECT 
for CC
SYNC
SEPARATOR
IC1100
CHARACTER
INSERT
SYNC
SELECT
SW
Q1028
SW
SW
CPU BUS
PLLHS
PIVS
ADV-IN
PT-LB80NTU / PT-LB80NTE / PT-LB80NTEA / PT-LB80U / PT-LB80E / PT-LB80EA / PT-LB75NTU / PT-LB75NTE / PT-LB75NTEA / PT-LB75U / PT-LB75E / PT-LB75EA
44
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