Toshiba 40LV685D User manual

SERVICE MANUAL
LCD Color Television
40LV685D Ver. 2.01
This model is classified as a green product (*1), as indicated by the underlined serial number. This
Service Manual describes replacement parts for the green product. When repairing this green
product, use the part(s) described in this manual and lead free solder (*2).
For (*1) and (*2), refer to GREEN PRODUCT PROCUREMENT and LEAD-FREE SOLDER.
© TOSHI A CORPORATION
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ADJUSTMENT
Service Mode
Entering to Service Mode
1. Press button once on remote control.
↓
↓↓
↓
2. Press button again and hold button down.
↓
↓↓
↓
Service Mode display
3. While holding the button, press MENU
button on T set.
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Displaying the Adjustment Menu
Press MENU button on T .
Key Function in the Service Mode
The following key entry during display of adjustment menu provides special functions.
Service Mode
Press ↑
↑↑
↑ ↓
↓↓
↓ Press
Adjustment Mode
AUTION: Never try to perform initialization unless you have changed the
memory I .
button (on remote control)
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Selecting the Adjusting Item
Every pressing of PROGRAMME button in the Service Mode changes the adjustment
items in the order of table below. ( button for reverse order)
SETTING & ADJUSTING DATA
[ SERVI E MODE ]
ADJUSTING ITEMS AND DATA IN THE SERVI E MODE:
Note:
The image system data of RCUT-BDR is different by each image format.
The PAL value is indicated in the table.
Test signal selection
Selection of the adjustment items PRO RAMME (on TV or remote control)
Change of the data value Volume +/- (on TV or remote control)
Adjustment menu mode ON/OFF MENU button (on TV)
Initialization of the memory (IC510) "i+" + PRO RAMME button on TV
Reset the count of operating
protect circuit to "00" "i+" + PRO RAMME button on TV
Turn off TV Micro I2C bus communication "i+" + Volume button on TV
"RCUT" selection 1 button
" CUT" selection 2 button
"BCUT" selection 3 button
"CNTX" selection 4 button
"COLC" selection 5 button
"UVTT" selection 6 button
Automatic A/D Adjustment
(PC, Component, Composite (PAL, NTSC)) 7 button
Self diagnostic display ON/OFF 9 button
Item Name of adjustment Address
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Factory preset data will be loaded after setting Model ID data.
(Refer to Initialization of Memory Data of IC510 and setting data of signal board.)
Adjusting the Data
Pressing of OLUME +/- button will change the value of data in the range from 00H to
FFH. The variable range depends on the adjusting item.
Setting TVOP
RCUT RED CUT --
CUT REEN CUT --
BCUT BLUE CUT --
RDRV RED DRIVE --
DRV REEN DRIVE --
BDRV BLUE DRIVE --
BRTC BRI HTNESS CENTER --
COLC COLOR CENTER --
UVTT BASE BAND TINT --
CNTX CONTRAST MAX --
OPT1 TV SET OPTION 1 00F1
OPT2 TV SET OPTION 2 00F2
OPT3 TV SET OPTION 3 00F3
OPT4 TV SET OPTION 4 (PANEL OPT DATA FOR VENDOR & SIZE) 00F4
OPT5 TV SET OPTION 5 00F5
SETID MODEL ID 00FE
OPT6 TV SET OPTION 6 00E8
OPT7 TV SET OPTION 7 00E9
OPT8 TV SET OPTION 8 00EA
HTLID HOTEL ID 00E0
VOLX MAXIMUM VOLUME LEVEL --
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Enter Service Mode and select menu of T OP by pressing P or P during display of
adjustment menu. After selecting T OP, press + or - to set I2C check function to
disable or enable as below.
Setting Panel Option Data
For a complete list of OPT4 data values corresponding to the model, see MODEL ID
TABLE.
Enter Service Mode and select menu of OPT4 by pressing P or P during display of
adjustment menu. After selecting OPT4, press + or - to set OPT4 value as table
below.
OPT4
Ex. OPT4 value 0x65 indicates that panel vendor is SAMSUNG and panel size is 32.
Upper 4bit is decided as below table.
Lower 4bit is decided as below table.
TVOP FUN TION DES RIPTION 1 0 (Normal)
D5 (bit5) I2C check between TV-Micro and Standby-Micro (WDT) Disable Enable
OPT4 (Upper 4bit)
D7
(bit7)
D6
(bit6)
D5
(bit5)
D4
(bit4)
D3
(bit3)
D2
(bit2)
D1
(bit1)
D0
(bit0)
Panel
vendor
L D 0 0 0 1
SHARP 0 0 1 0
CMO 0 0 1 1
AUO 0 1 0 0
IPS 0 1 0 1
SAMSUN 0 1 1 0
OPT4 (Lower 4bit)
D7
(bit7)
D6
(bit6)
D5
(bit5)
D4
(bit4)
D3
(bit3)
D2
(bit2)
D1
(bit1)
D0
(bit0)
Panel size 32 0 1 0 1
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onvert from Bit (Binary) to Hex
The table for converting from bit (D7-D0) to hex (0x**).
37 0 1 1 0
40 1 1 1 0
42 0 1 1 1
46 1 0 1 0
47 1 0 0 0
52 1 0 1 1
55 1 1 0 0
BIT (Binary)
High nibble D7 D6 D5 D4
Low nibble D3 D2 D1 D0
HEX 00 0 0 0
10 0 0 1
20 0 10
30 0 1 1
4010 0
50101
601 1 0
70111
8 1 000
9 1 0 0 1
A 1 010
B 1 01 1
1 1 0 0
D 1 1 01
E 1 1 1 0
F 1 1 1 1
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E.g. If Bit D7-0 = 0101 1010, Hex data is 0x5A.
Exit from Service Mode
Pressing POWER button to turn off the T once.
Initialization of TV Micro Data
After replacing Digital Board, the following initialization is required.
1) Enter Service Mode.
2) Select menu of ID by pressing P or P during display of adjustment menu in the
Service Mode.
3) Change ID data into MODEL ID to initialize by pressing + or -, refer to
"MODEL ID TABLE".
For example, if want to initialize 40L 685D, change MODEL ID into "0x3E".
Note:
MODEL ID is hex value.
4) Execute initialization of the memory.
Refer to "KEY FUNCTION IN THE SER ICE MODE".
Press "i+" + PROGRAMME button on T .
5) Enter Service Mode and select ersion Check Mode. Confirm if the model name and
MODEL ID set is correct. If not, do over again from the start.
Note:
In case initialization by setting wrong MODEL ID is done, there is a possibility of
abnormal display.
6) Check the picture carefully. If necessary, adjust any adjustment item above.
Perform "Auto tune" on the owner's manual.
MODEL ID TABLE
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Initializing Data setting flowchart after replacing the Signal Unit
Test Signal Selection
Every pressing of button on the remote control changes the built-in test patterns on
screen as described below in Service Mode.
MODEL ID (HEX) Model name Panel vendor OPT4 Data (HEX)
0x3D 32LV685D/LV675D SAMSUN 0x65
0x3E 40LV685D/LV675D SAMSUN 0x6E
0xE5 32LV665D SAMSUN 0x65
0xE6 40LV665D SAMSUN 0x6E
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Self Diagnostic Function
1. Press "9" button on remote control during display of adjustment menu in the Service
Mode. The diagnosis will begin to check if interface among IC's is executed properly.
2. During diagnosis, the following displays are shown.
* Self check displays and items are subject to the models.
Picture Signal
Red raster
reen raster
Blue raster
All Black
All White
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T CPU SW ersion:
ersion information of T Micro SW: Display 1 byte data. (Hex)
EEPROM ersion:
ersion information of T Micro EEPROM: Display 1 byte data. (Hex)
Power On Time: Total time the T has been powered on. (Unit: Hours) (Decimal)
Main PLL: Displays Data 11 - Data 18 (8 bytes) of tuner control data. (Hex)
BL_STATUS:
Block:
T Status: "official" is normal.
BL_STATUS 1 : The total number of times that the panel did not light. (backlight double-
light also failed) (Decimal)
BL_STATUS 2 : The number of times that the backlight failed to light. (Decimal)
U : AT reception mode
1 - 7 : IDEO 1-7 input mode.
DT : DT mode
For current input: OK: Signal Sync Detected
NG: No Sync Detected
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Bus Errors: "none" is normal.
Block:
Version heck Mode
1. Press "9" button twice on remote control during display of adjustment menu in the
Service Mode.
2. During ersion Check, the following displays are shown.
* ersion check displays and items are subject to the models.
UV ATV
V1 1
(SCART (FULL))
V2 2
(SCART (S+AV))
V3 3
(Composite)
V4 HDMI1
V5 HDMI2
V6 HDMI3
V7 HDMI4
V8 --
V9 --
PC PC
YUV 3
(Component)
DTV DTV (Digital Only)
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T Model:
T Model ID:
Boot Code ersion:
Core SW ersion:
Seine SW ersion:
T Micro SW ersion:
ersion information of T Micro SW. Display 1 byte data.
T Micro EEPROM ersion:
ersion information of EEPROM. Display 1 byte data.
EDID Checksum:
Pass/Fail Result Listed for HDMI 1-4 (left to right)
Global Data ersion:
ersion information of panel/picture data (string)
LCD Panel Opt:
Panel Option (OPT4) Data. Display 1 byte data.
(see Setting Panel Option Data)
Factory Test Status:
Optional Data Bits that is used by factory.
Country Shipout ID:
Country/Region T is configured for. Options are: UK, France, Continental, Russia, Nordic
A/D Adjust COMP: Component input
OK A/D adjustment set correctly.
NG
A/D adjustment set incorrect.
-- A/D adjustment is not needed because the picture format is not used.
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Setting Hotel Mode
Hotel Mode allows the customized settings for following hotel options according to various
hotel requirements.
Enable/Disable all Front Panel keys.
Enable all Front Panel keys except for Input Selection key.
Enable/Disable the remote control.
Disable access to all Setup menu items except for Language Setting.
Disable access to the Setup menu (grayed out).
Limit the maximum olume level.
Force POS/ IDEO Channel/Input, when the T is turned on.
Force volume setting, when the T is turned on.
Force picture setting when the T is turned on.
Force the T on while main power (AC power) is ON.
There are three ways to set up Hotel Mode Options: via Service Mode, Hotel Mode Settings
menu, and Hotel Clone menu.
Setting Hotel Mode via Service Mode
Enter Service Mode and select Hotel Mode menu by pressing P or P .
After selecting Hotel Mode, press + to enter details setting in Hotel Mode.
To select menu, press P or P and press OK to enter the adjustment menu of following
table data.
To move the cursor in the adjustment, press + or -.
A/D Adjust RGB: RGB (SCART or PC) input
OK/NG/-- Same as "A/D Adjust COMP"
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1. By pressing P or P , following table data setting will change the value either 1 or 0
on selected items as follows;
OPT2
VOLX
Set speaker volume to suitable sound volume level.
OPT6
OPT2 FUN TION DES RIPTION 1 0
(Normal)
D7 (bit7) Enable mode that TV standby will be
appeared in forced when turning the
main power ON
Enable
(This function is ignored
when D6 is set to 1.)
Disable
D6 (bit6) Enable mode that TV On will be
appeared in forced when turning the
main power ON
Enable Disable
D5 (bit5) FRONT Key Disable Enable
D4 (bit4) All keys except input selector key
(Video/TV)
Disable Enable
D3 (bit3) User remote control operation Disable
(Only setting of Service
Mode and Super User
mode are possible.)
Enable
D2 (bit2) Disable SET UP MENU except
language.
(tuning etc.)
Disable
(Display language only)
Enable
D1 (bit1) Disable SETUP MENU Disable Enable
D0 (bit0) HOTEL Mode On (Enable the setting of
D1 to D7)
Off
(Normal)
VOLX FUN TION DES RIPTION 1 0 (Normal)
D7 (bit7) ~
D0 (bit0) Max Limiter of Volume Control 0x00 ~ 0x64
OPT6 FUN TION DES RIPTION 1 0 (Normal)
D7 (bit7) Enable mode that POS or VIDEO program Enable Disable
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OPT7
OPT8
Setting Hotel Mode via Hotel Mode Settings Menu
number will be appeared in forced when turn
ON the main power
D6 (bit6) ~
D0 (bit0)
POS or VIDEO program number 0 ~ 127 [decimal] (Normal: 0)
POS number: 0 ~ 99
VIDEO number: 100 ~ 127
(DTV = 100, VIDEO = 101,
VIDEO = 102..)
100 is used as ATV when
DTV option is disable.
OPT7 FUN TION DES RIPTION 1 0 (Normal)
D7 (bit7) Enable mode that speaker volume will be set
in forced when turning the main power ON
Enable Disable
D6 (bit6) ~
D0 (bit0)
Forced speaker volume 0 ~ 100 [decimal] (Normal: 0)
Value above 100 is no effect.
OPT8 FUN TION DES RIPTION 1 0 (Normal)
D7 (bit7) ~
D4 (bit4)
No use - -
D3 (bit3) RF tuning operation by position up/down on
remote or front panel of the TV set, number,
and previous key when HDMI or PC input
Disable Enable
D2 (bit2) Enable mode that picture mode will be set in
forced when turning the main power ON
Enable Disable
D1 (bit1) ~
D0 (bit0)
Forced picture mode 0 [dec]: Auto View (Normal)
1 [dec]: Dynamic
2 [dec]: Standard
3 [dec]: Movie
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4. To enable Hotel Mode, use the or buttons to select "On" while "Hotel Mode" item
is highlighted. When Hotel Mode is on, the various options are enabled.
1. Press button once on remote control.
↓
↓↓
↓
2. Press button again and hold button down.
↓
↓↓
↓
(Hotel Mode Settings menu)
3. While holding the button, press P button
on T set.
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5. Press and buttons to select the item, and then press and
buttons to change the
setting.
6. Press [Exit] button to finish Hotel Mode setting.
Settings in "Hotel Mode Settings" menu
Hotel Mode
Setting Options Description orresponding Option Data Value
Hotel Mode Off Disable OPT2, D0 0
On Enable 1
Control Panel On Enable all front panel keys OPT2, D5 ~ D4 00
Off Disable all front panel keys 10
Off
(Except
Input)
Disable all front panel keys except
for "Input"
01
Remote On Enable OPT2, D3 0
Off Disable
(except for Service Mode function)
1
SETUP Menu On Enable access to Setup menu OPT2, D2 ~ D1 00
Off Disable access to Setup menu 01
Off
(Except
Language)
Disable access to Setup menu
except for Language Setting
10
Max Volume 0 ~ 100 Limited maximum volume level VOLUX, D7 ~ D0 0x00
~
0x64
Change
POS/VIDEO
Off TV Tunes to the last channel or
input viewed when the TV is turned
on
OPT6, D7 0
On TV tunes to preset
"POS/VIDEO" (channel/input) when
the TV is turned on
1
POS/VIDEO
(only available
when "Change
0 ~ 99 0 ~ 99
(ATV Channel Position)
OPT6, D6 ~ D0 0x00
~
0x63
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POS/VIDEO" is
On)
100 DTV Input
(ATV Input if DTV disabled)
0x64
101 ~ 108 External Inputs
101 (Video 1), 102 (Video 2), ...108
(PC)
0x65
~
0x6C
Change Volume Off The last TV volume level remains
not changed.
OPT7, D7 0
On
Force TV volume level when the TV
is turned on
1
Volume
(only available
when "Change
Volume" is On)
0 ~ 100 Preset speaker volume when the
TV is turned ON
OPT7, D6 ~ D0 0x00
~
0x64
Change
Selectable
Picture
Off The last Picture Setting Mode
remains not changed
OPT8, D2 0
On Force Picture Setting Mode to
"Selectable Picture" mode when
the TV is turned on
1
Selectable
Picture
(only available
when "Change
Selectable
Picture" is On)
AutoView Force Picture Mode to AutoView
when the TV is turned on
OPT8, D1 ~ D0 00
Dynamic Force Picture Mode to Dynamic
when the TV is turned on
01
Standard Force Picture Mode to Standard
when the TV is turned on
10
Movie Force Picture Mode to Movie when
the TV is turned on
11
Change TV
Power
Disabled TV returns to previous Standby/On
State when the main power is
applied
OPT2, D7 ~ D6 00
Force On Force TV ON when the main power
is applied
01
Force
Standby
Force TV Standby when the main
power is applied
10
Position Change
on HDMI/PC
Input
On RF tuning by P , P , and
RETURN keys is enabled
OPT8, D3 0
Off When the input source is HDMI or
PC Input, RF tuning by P , P ,
and RETURN keys is disabled
1
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opying Hotel Mode Options via Hotel lone Menu
The following Hotel Mode Options can be copied to other same model T s using USB Drive
via Hotel Clone menu:
OPT2
OPT6
OPT7
OPT8
OLX
DT Channel Setup
AT Channel Setup
Programme (position)
System
Colour System
Programme Skip
AFT
Label
Saving the Hotel Mode Settings of the TV to USB Drive
1. Configure the hotel mode settings via Service Mode or the Hotel Mode Settings menu.
2. Enter Hotel Clone menu by following steps a - c.
a. Press button once on remote control.
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