Toshiba 32UL863G User manual

SERVICE MANUAL
LCD Color Television
32UL863G
Ver. 1.00
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ADJUSTMENT
Service Mode
Entering to Service Mode
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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TVset.

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Displaying the Adjustment Menu
PressMENUbuttononTV.

Service Mode

Press ↑ ↓ Press

Adjustment Mode

Key Function in the Service Mode
Thefollowingkeyentryduringdisplayofadjustmentmenuprovidesspecialfunctions.
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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
CAUTION: Never try to perform initialization unless you have changed the
memory IC.
Test signal selection button (on remote control)
Selection of the adjustment items P (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 "i+" + P button on TV
Turn off TV Micro I2C bus communication "i+" + Volume button on TV
"RCUT" selection 1 button
"GCUT" 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

[ SERVICE MODE ]
ADJUSTING ITEMS IN THE SERVICE MODE:
ThelisteditemsaresettopropervaluesaftersettingthecorrectModelIDdata(Referto
InitializationofTVMicro).

Adjusting the Data
Item Name of adjustment
R-CUT RED CUTOFF
G-CUT GREEN CUTOFF
B-CUT BLUE CUTOFF
R-DRV RED DRIVE
G-DRV GREEN DRIVE
B-DRV BLUE DRIVE
BRTC BRIGHTNESS CENTER
COLC COLOR CENTER
UVTT BASE BAND TINT
CNTX CONTRAST MAX
MOID MODEL ID
PLVN PANEL VENDOR
PLSZ PANEL SIZE
OPT5 OPTION DATA 5
OPT2 OPTION DATA 2
OPT6 OPTION DATA 6
OPT7 OPTION DATA 7
OPT8 OPTION DATA 8
HTLID HOTEL ID
VOLX MAXIMUM VOLUME LEVEL

PressingofVOLUME +/-buttonwillchangethevalueofdataintherangefrom00Hto
FFH.Thevariablerangedependsontheadjustingitem.

Convert from Bit (Binary) to Hex
Thetableforconvertingfrombit(D7-D0)tohex(0x**).
E.g.IfBitD7-0=01011010,Hexdatais0x5A.
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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
701 1 1
8 1 0 0 0
9 1 0 0 1
A 1 010
B 1 01 1
C 1 1 0 0
D 1 1 01
E 1 1 1 0
F 1 1 1 1

Exit from Service Mode
PressingPOWERbuttontoturnofftheTVonce.

Initialization of TV Micro Data
AfterreplacingDigitalBoard,thefollowinginitializationisrequired.
1)EnterServiceMode.

2)SelectmenuofMOIDbypressingP orP duringdisplayofadjustmentmenuinthe
ServiceMode.

3)ChangeMOIDdataintoMODELIDtoinitializebypressing +or -,referto
"MODELIDTABLE".
Forexample,ifinitializing32RV753,changeMODELIDinto"0x0A".
Note:
MODELIDishexvalue.

4)Executeinitializationofthememory.
Referto"KEYFUNCTIONINTHESERVICEMODE".
Press"i+"+P buttononTV.

5)TVisautomaticallyturnedoffandonafterthememoryinitializationiscompleted.

6)EnterServiceModeandselectVersionCheckMode.ConfirmiftheMODELID
correspondingtothemodelnameissetcorrectly.Ifnot,dooveragainfromthestart.
Note:
IfthewrongMODELIDisset,abnormaldisplaymightappear.

MODELIDTABLE
Model Name Model ID
(HEX)
Panel
Vendor
Panel Inch
Size ID (HEX)
Panel Vendor
ID (HEX)
Option Data
(OPT5) (HEX)
32RV753 0x0A AUO 0x05 0x04 0x00

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Initializing Data setting flowchart after replacing the Signal Unit
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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.


37RV753 0x0B AUO 0x06 0x04 0x00
40RV753 0x0C SAMSUNG 0x0E 0x06 0x00

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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
Green raster
Blue raster
All Black
All White


Block:
Item Explanation/Data Format
1 TV CPU SW
Version
Version information of TV-MICRO. Display 1 byte data. (Hex)
2 EEPROM Version Version information of TV-MICRO EEPROM. Display 1 byte data.
(Hex)
3 POT Total time the TV has been powered on. (Unit: Hours) (Decimal)
4 MAIN PLL Displays Data 11 - Data 18 (8 bytes) of tuner control data. (Hex)
5 BL_STATUS 1 The total number of times that the panel did not light. (backlight
double-light also failed) (Decimal)
6 BL_STATUS 2 The number of times that the backlight failed to light. (Decimal)
7 Block UV : ATV reception mode
V1 – V8 : VIDEO 1-8 input mode (see Block table)
PC : PC input mode
DTV : DTV mode
For current input : OK: Signal Sync Detected
NG: No Sync Detected
8 Bus Errors IIC-BUS status. None is normal.
"SCL-GND" (Red indication) : SCL-GND short circuit
"SDA-GND" (Red indication) : SDA-GND short circuit
UV ATV
1