Panasonic PT-LW362 / PT-LW312 / PT-LB412 / PT-LB382 / PT-LB332 Service Manual ▷ View online
-49-
Electrical adjustment
Connect the AC code to the projector while pressing the <
> key on the control panel. The LED will not light up
this time. After that, click the [Bootloader Mode] button.
If the communication is established successfully, the software indicates the version of bootloader and information
of sub CPU onto the status bar on the bottom of the window
of sub CPU onto the status bar on the bottom of the window
4. Select menu [File] - [Open], and then choose the firmware hex file to be upgraded.
5. Click the [Write Device] button or select menu [Program]- [Write Device] to write the firmware to the projector.
After finishing, the completing message will be displayed on the status bar.
After finishing, the completing message will be displayed on the status bar.
6. Click the [Run Mode] button, to start the sub CPU application.
The <ON(G)/STANDBY(R)> LED will light in red. This is complete the upgrading and the completing prompt
The <ON(G)/STANDBY(R)> LED will light in red. This is complete the upgrading and the completing prompt
message will be shown on the window as the blow.
Quit the application and disconnect the AC cord and serial cable.
To confirm the upgraded firmware version, press and hold the <MENU> and <▲> keys more than 3 seconds.
Select the "No." by pressing the <MENU> key and select No. 102 and 103. The sub CPU firmware version will be
displayed on the "Data" column.
Select the "No." by pressing the <MENU> key and select No. 102 and 103. The sub CPU firmware version will be
displayed on the "Data" column.
How to read the sub firmware version
Group No.
Group No.
Data
999
102
+0
←indicates single-digit integer
103
+50
←Indicates after the decimal point
In this case, version is 0.50.
Group
999
999
No.
102
102
Data
+0
+0
Ver.
1.00
PT-LB412
Version of sub
firmware
firmware
-50-
Audio_out
Audio_in
R/L(RAC)*2
Component V
ideo
HDMI
RS232
SP3232E
USB*1
USB-2
S-V
ideo
VGA1
Ycbcr
VGA2
RMII
RJ45(With
network
transformer
)
LAN8720
DDR2
Flash
CXD35
51
Lamp control
DDR2
CXA38
28
F
AN3
F
AN2
F
AN1
Sub_CPU
IIC
Sensor1
Sensor2
Sensor3
AMP
DAC
Speaker
IR
Remote
control
Key
LED Indicate
B
LCD
lamp
IRIS
IRIS
B
Cooling fan
PWC878
Main board control
Block Diagrams
-51-
Block Diagrams
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
Power control circuit
-52-
Block Diagrams
F2001A/B
VA2001
LF2001
AC FILTER
K2008
K2006
IC2001
FA5612
FPC Control
K2003
1
IC2002
FA5641
Power Control
S16V
S6V
1/2
5/6
K2004
FB
B200
10
PFC_ON
D200
POWER
BALLAST
AC 380V
1
1
5
5
4
4
P3001
P3002
Lamp SW
&
FAN_ERR
LAMP_EN
H: TRUE
H: TRUE
RX
D1
TXD
1
1
C13
D13
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
H: TRUE
H: TRUE
H: TRUE
P_FAIL
IC1001
CPU
PW868LHB
*PW/878
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
V
V
S6
V
PF
C_ON
IC1801
MCU
PIC16F1824
3_3SDA/3_3SCL
D21/C21
IC1002
TEMP. Sensor B
AT30TS75
IC1003
TEMP. Sensor C
AT30TS75
IC1902
TEMP. Sensor A
AT30TS75
P_KEY
R17
P_KEY
ON_16V_MCU
PFC_ON
ON_MCU
8
7
2
3
9/10
1/2
5/6
10
PTH SW
120℃
FAN_ERR
D24
FAN FB
D3005
D3006
D3007
D3008
D3006
D3007
D3008
LAMP
P3003
TAN-ERR
D3014
Power and protection loop
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