tsi th 47lf30
DESCRIPTION
Panasonic service manualTRANSCRIPT
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Slide 1
Technical Support InformationTechnical Support Information
Panasonic Corporation 2011
Unauthorized copying and distribution
Is a violation of law.
cCS Promotion CenterCS Promotion CenterAVC Networks CompanyAVC Networks CompanyPanPanasonic Coasonic Corporationrporation
2012011 Model LCD monitor1 Model LCD monitor
Full HD type TH-47/42LF30 Series
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Slide 2Slide 2
IndexIndex
2.Power ON operation
5.Service Notes
4.Signal Process Circuit
6.Trouble Shooting
3.Voltage Distribution
1.Features
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Slide 3Slide 3
1.Features1.Features
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Slide 4
Back Side View e.g. TH-42LF30
V2 Board
V1 Board
P Board
A Board
DS Board
HX Board
Board FunctionFunctionP BoardA BoardDS Board
HX Board
V1 BoardV2 Board
Power Supply
Digital Core Signal ProcessorSlot InterfaceR232C_IN,R232C_OUT,PC_DVI_Audio_IN,Composit_Component_Audio_INRemote ControlControl Button, Power Switch
1. FeaturesThere are 6 boards as follows at TH-42LF30 back side view.Please refer to the figure, item Function
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Slide 5Slide 5
2.Power On Operation2.Power On Operation
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Slide 6
A board
Plug in
FuseFilter
P board
V2 board
V1 board HX board
Remote Control
SW1551
RM1505receiver
StandbyConverter
T201
V22 A22
STB5V
STB5V
STB5V
STB5V
IC4801SUB CPU
STB5V
IC4002MUTE
IC4504EEPROM
IC4508EEP JIC
STB5VA7HX7HX11V11
ON/OFF command
Q4124Q4117
SWON command
StandbyConverter
T201
SubConverter
T301
MainConverter
T401
A6P6
IC4003STB forSpeaker
IC4601
IC4602
IC4603
IC4604
IC4605
Q4601SW
IC460724V
12V
ON command
3.3V
1.2V
5V
5V
3.3V
1.8V
1.2V
MCU 5V
To IC4501 Main CPU
To IC4701 LVDS receiverTo IC4501 main CPU
To DS board
5V
5V ON
P2 P3To Back light To Inverter
24V
5V FSTB15V
16V IC4001Speaker
Amp
A13
1
3
2
4
5
4
4
4
6
6
7
8
4
To LCD Driver
ON command
To IC4701HDMI SW
DVI Interface
9
For main CPU
For main CPU
2 (1). Power On Operation
3
Power Factor Control
ON command
10
A4
A5
P4
P5
ON command
11
9
9
10
VoltageCommand
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Slide 7
1
2
3
4
5
When AC plug is in, plug voltage is applied to fuse and filter of P board.After passing the standby converter T201, plug voltage is converted to 5V.
On the other hand, 5V passing the P6/A6 terminal is used as STNDBY voltage.This STANDBY voltage is supplied to V2 board via A22/V22 terminal.5V is applied to SW1551 of V2 board.
2 (2). Power On Operation
5V is supplied to A board via P5/A5 and P6/A6 terminal.5V through the A5 terminal is supplied to IC4601 and IC4602.5V is converted to 3.3V and 1.2V by these 2 ICs.Both 3.3V and 1.2V are supplied to HDMI SW/DVI interface IC4701.
When the customer press the power switch button, SW1551 is ON.After SW1551 was ON, 5V is supplied to A board again via A6 terminal with 5 usages follows.1)Supplied to SUB CPU IC4801 and IC4801 recognizes that power switch ON.2)Supplied to DS board for SLOT and LAN operation.3)Supplied to RM1505 of V1 board via HX board.
RM1505 is remote control receiver. There is no process of passing the HX board. 4)5V is supplied to IC4508 and IC4504 EEP. These 2 ICs are combined to main CPU IC4501. 5)5V is supplied to IC4001 Speaker amp.
On/OFF command by remote control is received by RM1505 of V2 board.This command is sent to sub CPU IC4801.By receiving this command, IC4801 recognizes the ON/OFF command of remote control.
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Slide 8
6 After receiving remote control ON command, IC4801 switch ON Q4124/Q4117.After Q4124/4117 was ON,5V is supplied to P board via A6/P6 terminal.
2 (3). Power On Operation
5V from Q4124/4117 is supplied to Power Factor Circuit of P board.This circuit supplies the plug voltage to sub converter T301 and main converter T401.7
IC4801 SW ON the Q4601 and 5V is supplied to IC4603, IC4604 and IC4605.IC4603 convert 5V to 3.3V and supply to IC4501 main CPU.IC4604 and IC4605 convert 5V to 1.8V and 1.2V.Both 1.8V and 1.2V are supplied to IC 4501 main CPU and IC4701 LVDS receiver.
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IC4801 send ON command to sub converter T301 via A4/P4 terminal.Sub converter T301 converts the plug voltage to 16V.This 16V is distributed to IC4001 speaker amp. of A board and DS board via A13 terminal.15V supplied to DS board is called FSTB15V and used as power of slot / LAN at DS board.
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IC4801 send ON command to main converter T401 via A5/P5 terminal.Main converter T401 converts the plug voltage to 24V.24V is supplied to backlight and inverter of LCD panel via P2/P3 terminal.Another 24V is supplied to A board via P5/A5 terminal.
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After start supplying 24V, IC4801 send ON command toIC4607.IC4607 has 2 function.1)Power switch for LCD panel driver and the other is the converter of 24V to 12V.2)Supplly 12V to LCD panel driver via A1 terminal.
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Slide 9Slide 9
3.Voltage Distribution3.Voltage Distribution
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Slide 10
STBCircuit
PowerCircuit
P
A16 A171/31/2
Speaker
24VMCU 5V
P21/5
P31/5
P51-2
5-7
24V
24V
To Inverter
To Inverter
3 (1). Voltage Distribution
LCD Panel
IC460724V12V
Panel Control
A51-2
5-7
Q4601 IC4605
IC4604
5V1.2V
5V1.8V
IC4001Audio Amp
A
DS
16V
15V
A13
1/515V
IC4603
IC4601
IC4602
5V3.3V
5V1.2V
IC4701HDMI SW/DVI
IC4501Main CPU
IC42023.3V1.8V
3.3V
1.8V
5V1.8V
5V
Only Switch function
5V
1.2V
1.8V
3.3V
1.8V
1.2V
IC4201LVDS
Receiver
P6 A61
5
2
1
5
2
11
A7
11
1/5
DS1311
To V2 board
STB 5V
STB 5V
STB 5V
STB 5V Power supply to slot and LAN
ON/OFF command from SUB CPU IC4801
1
To V1 boardVia HX board
A22
5
A13
P3
P41-3
A4
1-3
1
2
2
3
1 4
5
5
5
5
6
6
6 7
SW 2
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Slide 11
1
2
3
3 (2). Voltage DistributionSTBY 5V is start generating after plug in.STBY 5V is supplied to A board via P6/A6 terminal.After entering A board,STBY5V is sent to 1)V1 board for remote control receiver via A7 terminal2)V2 board for power press switch via A22 terminal3)DS board for slot and LAN operation via A13 terminal.
After receiving power ON command (from SUB CPU IC4801)MCU5V is started to supply.MCU5V is supplied to A board via P5/A5 terminal.After entering A board, this 5V is distributed to Q4601,IC4601 and IC4602.5V is converted to 1.8V and 1.2V by IC4601 and IC4602.Both 1.8V and 1.2V are supplied to main CPU IC4501.
Q4601 is the switch function and receiving power on command from sub CPU IC4801.After SW ON, 5V is supplied to IC4605,IC4604 and IC4603.5V is converted to 1.2V,1.8V and 3.3V by IC4605,IC4604 and IC4603.1.2V,1.8V and 3.3V are supplied to Main CPU IC4501.Only 3.3V is supplied to IC4201 LVDS Receiver, too.
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Slide 12
4
3 (3). Voltage DistributionThere is IC4202 next to IC4603.MCU5V is converted to 3.3V by IC4603.After this procedure,3.3V is converted to 1.8V by IC4202.1.8V is supplied to IC4201 LVDS receiver.
4 There is IC4202 next to IC4603.MCU5V is converted to 3.3V by IC4603.After this procedure,3.3V is converted to 1.8V by IC4202.1.8V is supplied to IC4201 LVDS receiver.
5 After receiving power ON command (from A board) P board start supplying 16V.16V is supplied to A board via P4/A4 terminal.1)15V is supplied to IC4001 speaker amp.2)15V is supplied to DS board via A13/DS13 terminal.
After entering to DS board,15V is used to SLOT/LAN operation.
6 Next step to above process, P board receive another power ON command from A board.P board start supplying 24V.24V is supplied to inverter circuit and back light circuit of LCD panel side via P2/P3 terminal. Another way, 24V is supplied to A board via P5/A5 terminal, too.
7 Only this lines 24V is converted to 12V by IC4607.After converting 12V is supplied to panel driver of LCD side.24V.
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Slide 13Slide 13
4.Signal Process Circuit4.Signal Process Circuit
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Slide 14
DSDS AA
IC4201
LVDSreceive
Synccontrol
IC4201
LVDSreceive
Synccontrol
HXHX
SLOT 1
PC
IC4501
I/P CONV.
FORMATCONV.
2-SCREENCOMPOSITION
OSD addition
LVDS conv.
Through
< Picture flow from input terminal to output >
30 bit RGBVideo Signal
IC4701HDMI SW/DVI Display chn
DVI IN HDMI IN 1 HDMI IN 2
HDMI DataTMDS Data
Analogue Video data
Component RGB
Analogue Video data
Digital Video data
DVi/HDMI data
LVDS Data to LCD panel
4 (1). Signal Process Circuit
SLOT 2
IC3503IC3504
RS232CDriver
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Slide 15Slide 15
The function of A board is the processor of incoming video signals and audio signals.
The video input signal format can be Y/C, or Y, Pb, Pr.A comb filter, inside IC4501 converts the composite video signal of the main picture to Y and C (luminance and chrominance) signals.
At the completion of this process, the format of the composite or HDMI/DVI input (Digital Video Interface)Video signal is now the same as a digital component signal.
If the incoming video is in the 480p, 720p, 1080i, and 1080p format, the Y, Pb, and Pr signals undergo A/D (analog to digital) conversion only. Finally all picture signals are converted to 1080p.
This Video Process section of the IC4501 performs all picture control operations such as brightness, contrast, color, tint, etc.
On Screen Display data such as adjustment item are mixed with the video data. LVDS (Low Voltage Differential Signaling) is output to LCD panel from A1 terminal.
4 (2). 4 (2). Signal Process CircuitSignal Process CircuitVideo Signal
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Slide 16
DSDS AA
HXHX
SLOT 1
PC
IC4501Audio MUX
DSPD/A Conv.A/D Conv.
Analogue Audio Signal
IC4701HDMI SW/DVI Display chn
DVI IN HDMI IN 1 HDMI IN 2
HDMI DataTMDS Data
Component RGB
DVi/HDMI data
Analogue Audio Signal
Analogue Audio Signal
IC4001AudioAmp.
To Speaker
4 (3). Signal Process Circuit
SLOT 2
IC3503IC3504
RS232CDriver
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Slide 17Slide 17
All audio signal input are sent to IC4501.Same IC as video signal processor.
All input audio signal is converted to digital signal (A/D convert ) before entering to the audio signal processing.Audio signal is processed by digital format.
After passing audio signal process, audio signal is converted to analogue format signal and sent to audio amp IC4001.
Audio signal is amplified by this IC4001 and sent to the speaker.
Audio Signal4 (4). Signal Process Circuit
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Slide 18Slide 18
5.Service Notes5.Service Notes
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Slide 19
< Protection function > < Protection function >
CPU of LCD monitor is checking the voltage at some important points.
When something trouble has happened at these points,
CPU detects the trouble by abnormal voltage input.
After detecting this abnormal information, CPU shut down the power supply and
Start Red LED blinking to inform us the detecting point as follows.
Blinking pattern at Power LED (Sample 4 times blinking)
1 sec 1 sec 1 sec 1 sec 1 sec3 sec
1 2 3 4 31 2
5 (1). Service Notes
4
1 sec
Power LED color is red.
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Slide 20
The defective block can be identified by the number of blinks of the Power LED on the front panel of unit.
Blinking Times Contents and Check point Check point
2
4
10
13
Power SOS
Panel 12V SOS
DS SOS
Regulator SOS
A board
A boardP board
DS board
A board
5 (2). Service Notes
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Slide 21
1. Press and hold Volume down (-) button on the front panel of a unit
and press Recall button on a remote control 3 times quickly within 2 seconds, then you can go into CAT mode.
2. The table as right diagram is displayed.
Y525(480i)/60p
16:9 DYNAMIC Hi
Panel W/B Adj
R DRIVE
55 53
Original Data New Data
Select the IIC mode by Up/Down button on the remote control at the CAT mode.After select the item IIC mode, press the Action button of remote control.
Select the alignment subject by UP/Down buttons on the remote control.
Select the alignment subject by Left/Right buttons on the remote control.Adjust the optimum setting by Volume UP/Down buttons on the remote control. The data is memorized when press the R button on the remote control
FT Mode Fan Trouble only
IIC ModeIIC Mode
To exit this mode, press the R button.
5 (3). Service Notes
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Slide 22
01.02.03.04.05
1st LED blinking after shipping (FIXED)2nd LED blinking after shipping (FIXED)
Latest LED blinking (Renewal)Previous LED blinking (Renewal)
Second previous LED blinking (Renewal)
Select CD Mode by Up/Down buttons on the remote controland then keep pressing the Mute button on the remote control more than 3 seconds.
To exit the MS mode, press the R button on the remote control.
( the number is hexadecimal )
( This drawing is a 85PF12 )
CD ModeCD Mode
To exit this mode, press the R button.
5 (4). Service Notes
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Slide 23
Select SD Mode by Up/Down buttons on the remote controland then keep pressing the Action button on the remote control.
SD ModeSD Mode
Input command check
MTBF Parameter
Condition
Sensor
00 00 00 FD FE 49 4A49 14 15 17 16 17 1812 D4 4B 49 05 49
13 27
1
+35
118
WT PT
TE
History of remote control command / Factory use
WT: Counter of Power ON.In this case, power on 13times
PT: Cumulative time of Power ON condition.In this case, power on 27 hours
TE: The number of times temperature error.In this case, error has happened 1 time.
Condition: Temperature unit
Sensor : Illumination sensor value
To exit this mode, press the R button.
5 (5). Service Notes
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Slide 24
CD Mode for LED blinking history.
01.02.03.04.05
1st LED blinking after shipping (FIXED)2nd LED blinking after shipping (FIXED)
Latest LED blinking (Renewal)Previous LED blinking (Renewal)
Second previous LED blinking (Renewal)
Select CD Mode by Up/Down buttons on the remote controland then keep pressing the Mute button on the remote control more than 3 seconds.
To exit the MS mode, press the R button on the remote control.
( the number is hexadecimal )
( This drawing is a 85PF12 )
5 (6). Service Notes
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Slide 25
1. Select number(*) for your country by Left/Right buttons on the remote control.2. Press the Mute button on the remote control.3. The display of Present number is changed to the number you selected.To exit the MS mode, press the R button on the remote control.
After entering to the Service Mode, CAT front panel, select the MS Mode by Up/Down buttons on the remote controlThen keep pressing the Mute button on the remote control more than 3 seconds.
Market select 11.01 1 1MS
Change by Left/Rightbuttons on the remote control
Present number
EEPROM data version
(*) Please refer to the Service Manual for the number of your country.
Default setting is 0 (= Japan)1 (= for north America )3 (= for Asia, Oceania, Middle East)
18 (= China)20 (=Europe, CIS)
5 (7). Service Notes
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Slide 26
1. Self check is used for automatic check of ICs controlled by bus line.2. Select the ID mode by UP/Down (-) button of remote control at the front page
of CAT mode .After that keep pressing the Mute button on the remote control more than 3 seconds.
3. Results of diagnosis are displayed on the screen as follows.
If Self check completed normally,OK is appeared.
If Self check completed abnormally,NG is appeared.
(*) When NG is displayed, NG appearing board is defective.
The line of the PTCT displays when you get into the self-check mode for the first time only after the Power LED blinks.
=Once you check this screen, the PTCT line disappears.
PTCT ** H09 :** = LED blinking times
: board name/different from some models
To exit the MS mode, press the R button on the remote control.
5 (7). Service Notes
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Slide 27Slide 27
6.Trouble shooting6.Trouble shooting
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Slide 28
6 (1). Trouble Shooting 6 (1). Trouble Shooting
No Picture No Picture /Abnormal picture /Abnormal picture : except Panel Defect: except Panel Defect / Sound is normal/ Sound is normal
Picture problem is happenedin all input ?
Yes
Flexible cable at A1 terminal is fixed completely?
A BoardMainly Video SignalProcessor defect
YesReconnect steady and check again from the beginning.
Only Component RGB input has problem.Another inputs are normal.Component input terminal area of A boarddefect.
Only DVI input has problem.Another inputs are normal.DVI input terminal area of A board defect.
Only HDMI input has problem.Another inputs are normal.HDMI input terminal area of A board defect.
Only PC input has problem.Another inputs are normal.PC input terminal area of HX board defect.
No
No
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Slide 29
6 (2). Trouble Shooting 6 (2). Trouble Shooting
Audio problemAudio problem
Sound problem is happenedin all input ?
Yes
Output of A16/A17terminal is 5V ?
Speaker defect
Yes
Audio amp defectA board (IC4501)
Only Component input has problem.Another inputs are normal.Component input terminal area of HX board defect .
Only PC/DVI audio input has problem.Another inputs are normal.PC/DVI input terminal area of HX board defect.
Only HDMI input has problem.Another inputs are normal.HDMI input terminal area of A boarddefect. (IC4701)
No
No
If one of speaker is normal, either right or left.The other one should be defective.
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Slide 30Slide 30
Update HistoryUpdate HistoryIssue date Update part Update explanationDec.1st. 2011 First version.
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