DOWNLOAD Panasonic PT-LW375 / PT-LW335 / PT-LB425 / PT-LB385 / PT-LB355 / PT-LB305 (serv.man2) Service Manual ↓ Size: 3.94 MB | Pages: 17 in PDF or view online for FREE

Model
PT-LW375 PT-LW335 PT-LB425 PT-LB385 PT-LB355 PT-LB305 (serv.man2)
Pages
17
Size
3.94 MB
Type
PDF
Document
Service Manual
Brand
Device
Projector / LCD PROJECTOR
File
pt-lw375-pt-lw335-pt-lb425-pt-lb385-pt-lb355-pt-lb.pdf
Date

Panasonic PT-LW375 / PT-LW335 / PT-LB425 / PT-LB385 / PT-LB355 / PT-LB305 (serv.man2) Service Manual ▷ View online

DIA-3
BLOCK & SCHEMATIC DIAGRAMS
<LW375 / LB305 / TW371R /TW370 / XW3370 series>
Audio_out
Audio_in
R/L(RAC)*2
Component Video
HDMI
RS232
SP3232E
USB A
USB B
S-Video VGA1 Ycbcr
VGA2
RMII
RJ45(
With 
network  transformer
LAN8720
DDR2
Flash
EEPROM
CXD3551
Lamp control
DDR2
CXA3828
FA
N C
FA
N B
FA
N A
Sub_CPU
IIC
SENSOR A
SENSOR B
SENSOR C
AMP
DAC
Speaker
IR
Remote  control
Key
LED Indicate
LCD
lamp
IRIS
Fan
PWC878
1. Block Diagram
1. 1. Main board control
R
/G/
B/
H
/V
R
/G/
B
R
/G/
B
H
/V
H
/V
H
/V
R
XD
/TX
D
I2
C
Spe
ak
er
2W
 4
Ω
R
/G/
B
16
V
6V
R
XD
/TX
D
PW
868L
H
IC
10
01
 
VG
A
 IN 
VG
A1
 OUT
 
R
S232
 
S
-VI
DE
O
 
Y/P
b/
Pr
 
V
IDE
O
 
TP
F1
33
 
IC
35
03
 
SN
74H
C
125PW
 
IC
3502
323
2E 
IC
30
02
 
Te
m
p.
 Se
nsor X2
 
AT3
0TS7
IC
130
1/IC
13
02
 
EEP
R
OM
 
24
AA6
4T
-IM
S
 
IC
10
13
 
P
OWE
R
 
CXD3
55
1GG
 
IC
80
01
 
Ke
Pa
RC
 
Fa
C
on
tro
Su
M
CU
 
PIC1
6F1
82
IC
18
01
 
LE
D
 C
on
tro
DD
R
II 
K4
T1
G1
64
QF
-BC
F8
 
IC
10
05
 
LCD 
Dri
ve
CX
A
382
8GL
 
IC
90
01 
R
 
G
 
LCD 
P
an
el
 
FA
NA
 
LCD 
P
an
els 
C
oo
lin
FAN
B
 
Pow
er
 and
 Lam
C
ooli
ng
 
FA
NC
 
La
mp
 Co
oli
ng 
B
all
ast
 C
on
tro
IRIS
 
Fl
ash
 M
em
ory 
M
X2
5L2563
5FM
I-1
0G
 
IC
10
06
 
HDM
P
T23
34
 
IC
50
07
 
For LB305 / XW3370 series
For LW375 / TW371R / TW370 series
DIA-4
BLOCK & SCHEMATIC DIAGRAMS
<LW375 / LB305 / TW371R /TW370 / XW3370 series>
F2003
 
VA2001
LF2001
K2010
 
AC  FILTER 
K2008
K2001
 
IC621  
FA5613 
PFC Control 
K2100
IC2002 
FA8A01 
Power Control 
S16V 
S16V 
S-5V
P_ON/OFF
 
1
2
3
4
5
6
7
8
9
10
 
K2300 
FB 
T2
 
 
PC2180
BALLAST 
AC 380V 
P3001 
P3002
Lamp SW 
FAN_ERR
LAMP_EN
H:
 
TRUE
 
H: TRUE
TXD1
 
C13
D13
ON_5V 
ON_1_8V 
FAN_SW 
ON_15V 
ON_3_3V 
ON_1_0V 
ON_1.0V_P
ON_16V 
G2 
J3 
H5 
H2 
H3 
H4 
H1 
J1 
H: TRUE 
H: TRUE 
H: TRUE 
H: TRUE 
H: TRUE 
H: TRUE 
H: TRUE 
H: TRUE 
P_FAIL
IC1001 
CPU 
 
W1
L1 
P_LAN_FAIL 
E24 
IC4002 
S5V 
Q4003 
IC5010 
IC3901 
IC3046 
Q3821 
Q3811 
IC3010 
Q4005 
S3.3VSI 
S1_8V_HDMI_SI 
S1V_VCCK 
1_8VDDR 
3_3VCC3 
3_3VSH 
2_5V_RX 
2_5V_TX 
2_5V_IO 
S1V_LVDS 
S1V_PLL 
15_5V 
AUDIO_POWER_5_5V 
MAIN 
S16
S6
P_ON
/OFF
 
IC1801 
MCU 
PIC16F1824 
3_3SDA/3_3SCL 
D21/C21 
IC1002
 
TEMP. SENSOR A  
(PANEL)
 
IC1003 
TEMP. SENSOR B 
(LAMP)  
IC1902 
TEMP. SENSOR  
       (EXT.)  
P_KEY 
R17 
P_KEY 
ON_16V_MCU 
P_ON/OFF
 
ON_MCU 
9/10 
1/2 
5/6 
10 
 
120°C
 
FAN_ERR 
D24 
FAN FB
IC3100
D3005
D3006
D3007
D3008
D3014
 
LAMP 
P3003 
FAN_ERR
FANC_ERR
RXD1
TXD_LAMP
RDX_LAMP
POWER
7
7
7
1. 3. Power and protection loop
DC-DC * 3
DC-DC
3 group fans
Audio amplifier
3 group 
LCD panels
S12.5V
FR9888
3_3V_MCU
DC-DC
CXA3828
15.2V
3.3V
Other IC
S5V
S3.3V
3.3VD-PWC
3.3VA-PWC
3.3V-FLASH
FR9888*2
1_8V
1.8V
1.8VD-PWC
S1_8V
1.8V-DDR2
TD5830A
1.0V
1.0VD-PWC
PS29152
TPC6113
2_5V_TX
2_5V_RX
2.5V
2_5V_IO
3_3VSH
3_3VCC3
TPC6113
1_8VDDR
SUB CPU
TD5830
S1V_VCCK
1.0V
S1V_PLL
S1V_LVDS
CXD3551GG
PW868
16V
S1V_PLL
1. 2. Power  control circuit
DIA-5
BLOCK & SCHEMATIC DIAGRAMS
<LW375 / LB305 / TW371R /TW370 / XW3370 series>
2
3
1
3
2
1
5
8
6
34
18
33
26
30
31
1/2
17
43/44
19
10
14
22
IC5202
PT2830
IC1001
PW878LHB
K1203
PC_R
K1
20
3
PC_L
VEDIO_R
K1202
VEDIO_L
16
20
HDMI_R
HDMI_L
SDA
SCL
SD_MCU
IC5005
HDMI 
AUDIO
OUTR
OUTL
P5003
AMUOUT
OUIT_DET_EXT
1. 4. Audio control circuit
 
2
3
 
1
3
2
1
 
8
5
6
4
Q5001
Q5005
Q5006
13
22
18
29
28
17
16
43
11
46
24
7
 OUT_DET_EXT
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
IC5007 
PT2334 
 
 
 
 
 
   
 
 
 
IC1001 
PW686LHB
 
    
 
   
K1203
 
PC_R 
   K1
20
PC_L 
VEDIO_R
 
 
  K1
20
VEDIO_L
 
CLK 
LRCLK
 
DATA 
SD_PW 
MUTE 
 OUTR 
 OUTL
P5003
5
2
7
5
2
7
5
2
7
FANC_SW
H6
3
3
3
FANC_ERR
FAN ERR
AA10
Lamp_cold
FN3005
1
2
D3014
W13
FANC_DA
Power_out
FN3004
1
2
IC3280
FR9888
D3008
7
0
0
3
D
3
8
2
3
Q
D3011
IC3250
FR9888
H5
Lamp_out
FAN_SW
FN3003
1
2
FN3002
1
2
T12
FANB_DA
D3006
IC
100
1
P
WC
87
8
Y12
FANA_DA
Panel_B/G
Q3361
Q3030
D3005
IC3009
FR9888
Panel_R
S16V
FAN_A
FN3001
1
2
FAN_C
FAN_B
R/C
C1
2
1
2
1
 
E4
LAMP COVER SW
1
2
3_3SDA
E1
LAMP_EN
10
IC1002
TEMP 
SENSOR A
TEMP 
SENSOR B
TEMP SENSOR 
<PANEL>
IC1003
<LAMP>
IC1902
<EXT.>
3_3SCL
P3006
3
2
8
P3002
IC3100
GL810S
5
BALLAST
LAMP cooling Fans
Exhausting FANS
LCD PANEL
 COOL ING FANS
FAN_ERR
Power ERR: ON
P3001
4
`
1. 5. Fan control circuit
For LB305 / XW3370 series
For LW375 /TW371R /TW370 series
DIA-6
BLOCK & SCHEMATIC DIAGRAMS
<LW375 / LB305 / TW371R /TW370 / XW3370 series>
2. Interconnection Block Diagram
J4
P3001
P3002
B
G
R
B03
B04
PROJECTION LENS
LAMP
B-P.C.B
<BALLAST>
CONNECT-P.C.B
INTERACTIVE CAMERA 
MODULE-P.C.B
RC-P.C.B
PANEL_G  INTAKE FAN
LAMP_OUT FAN
AC INLET
J9001
FN3002
FN3001
P3003
P3001
P5030
P3002
POWER _OUT FAN
FN3005
P-P.C.B
K2008
FILTER-P.C.B
J9002
J9003
SPEAKER
P5003
P3005
Temp sensor-P.C.B
LAMP COLD FAN
LAMP SWITCH
PANEL_R INTAKE FAN
P3006
P3004
K2300
K2100
K2001
P2 P3 P4
1
2
FN3004
FN3003
*1
*2
*1: For Portable model series
*2: For Short-throw model series
P3004A
P1001
P6002
P6001
IRISMOTO-P.C.B
P4001
CN2
CN1
CN3
FRONT RC-P.C.B
BACK RC-P.C.B
A-PCB
*1
*2
P1001
P1902A
Only for model PT-TW371R
*2
P5002
USB A
VIEWER/
WIRELESS
USB B
DISPLAY
LAN
HDMI IN
MONITOR OUT
SERIAL IN
COMPUTER 2 IN
COMPUTER 1 IN
VIDEO IN
AUDIO IN
VARIABLE
AUDIO OUT
P5005
P5001
J4050
J4503
J4501
K1202
K1203
MINI USB
For LW375 /TW371R /TW370 series
Page of 17
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Panasonic PT-LW375 / PT-LW335 / PT-LB425 / PT-LB385 / PT-LB355 / PT-LB305 (serv.man2) Service Manual ▷ Download

  • DOWNLOAD Panasonic PT-LW375 / PT-LW335 / PT-LB425 / PT-LB385 / PT-LB355 / PT-LB305 (serv.man2) Service Manual ↓ Size: 3.94 MB | Pages: 17 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Panasonic PT-LW375 / PT-LW335 / PT-LB425 / PT-LB385 / PT-LB355 / PT-LB305 (serv.man2) in PDF for free, which will help you to disassemble, recover, fix and repair Panasonic PT-LW375 / PT-LW335 / PT-LB425 / PT-LB385 / PT-LB355 / PT-LB305 (serv.man2) Projector. Information contained in Panasonic PT-LW375 / PT-LW335 / PT-LB425 / PT-LB385 / PT-LB355 / PT-LB305 (serv.man2) Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.