Toshiba 32AV500 Schematic

U04A

LOW-B

U01A

SIGNAL

U03A

POWER

U02A

KEY/LED/RMT

ADJUSTMENT

Service Mode

Entering to Service Mode

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1. Set VOLUME to minimum and 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

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Press ↑ ↓ Press

Adjustment Mode

Key Function in the Service Mode

The following key entry during display of adjustment menu provides special functions.

CAUTION: Never try to perform initialization unless you have changed the

memory IC.

button (on remote control)

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Test signal selection

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Selection of the adjustment items Change of the data value Adjustment menu mode ON/OFF MENU button (on TV) "RCUT" selection 1 button "GCUT" selection 2 button "BCUT" selection 3 button "CNTX" selection 4 button "COLC" selection 5 button "TNTC" selection 6 button Automatic A/D Adjustment

(PC, Component, Composite (PAL, NTSC)) Self diagnostic display ON/OFF 9 button

CH (on TV or remote control) Volume +/- (on TV or remote control)

7 button

Selecting the Adjusting Item

Every pressing of CH button in the service mode changes the adjustment items in the order of table below. ( button for reverse order)

SETTING & ADJUSTING DATA

[ SERVICE MODE ]

ADJUSTING ITEMS AND DATA IN THE SERVICE MODE:

Note:

The image system data of RCUT-BDRV is different by each image format. The PAL value is indicated in the table.

ever adjust H.POS and V.POS except PAL/WIDE mode.

Item Name of adjustment

RCUT R CUT OFF

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GCUT G CUT OFF BCUT B CUT OFF RDRV R DRIVE GDRV G DRIVE BDRV B DRIVE BRTC BRIGHTNESS CENTER COLC COLOR CENTER TNTC BASE BAND TINT CNTX CONTRAST MAX VOLUX MAX VOLUME LIMITED

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OPT1 TV SET OPTION 1 OPT2 TV SET OPTION 2 OPT3 TV SET OPTION 3 OPT4 TV SET OPTION 4 (PANEL OPT DATA FOR VENDOR) OPT5 TV SET OPTION 5 (PANEL OPT DATA FOR SIZE) OPT6 TV SET OPTION 6 (HOTEL MODE) OPT7 TV SET OPTION 7 (HOTEL MODE) OPT8 TV SET OPTION 8 (HOTEL MODE) ID PANEL

Factory preset data will be loaded after setting PANEL data. (Refer to setting data of Main board.)

Adjusting the Data

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.

Setting Panel Option Data

Panel option data is subject to OPT4 and OPT5. Enter to service mode and select menu of OPT4 or OPT5 by pressing P or P during

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display of adjustment menu. After selecting OPT4 or OPT5, press + or - to set OPT4 or OPT5 value as table below.

Panel option data

Series Model name Panel vendor OPT4 value OPT5 value

AV500PR EU 32AV500PR SHARP 0x02 0x05

LGD 0x01 0x05

OPT4

Ex. OPT4 value 0x02 indicates that panel vendor is SHARP.

OPT4

Panel vendor LGD - - - - 0 0 0 1

SHARP - - - - 0 0 1 0 CMO - - - - 0 0 1 1 AUO PMVA - - - - 0 1 0 0 AUO AMVA - - - - 0 1 0 1 SAMSUNG - - - - 0 1 1 0 IPS - - - - 0 1 1 1

(bit7)

(bit6)

(bit5)

(bit4)

(bit3)

(bit2)

(bit1)

(bit0)

OPT5

Ex. OPT5 value 0x05 indicates that panel size is 32.

OPT5

Size 32 ----0101

37 ----0110 42 ----0111

(bit7)

(bit6)

(bit5)

(bit4)

(bit3)

(bit2)

(bit1)

(bit0)

Convert from Bit (Binary) to Hex

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The table for converting from bit (D7-D0) to hex (0x**).

BIT (Binary) High nibble D7 D6 D5 D4 Low nibble D3 D2 D1 D0 HEX 0 0000

1 0001 2 001 0 3 0011 4 0 1 00 5 0 1 0 1

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6 0 110 7 0 111 81000 91001 A10 1 0 B10 11 C1100 D110 1 E1110

F1111

E.g. If Bit D7-0 = 0101 1010, Hex data is 0x5A.

Exit from Service Mode

Pressing POWER button to turn off the TV once.

Setting Data of Signal Unit

After replacing Main board, the following initialization is required.

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CAUTION: Whenever using new Main board to the set, setting the PANEL

data according to Panel option data.

Note:

In case initialization by setting wrong PANEL is done, there is a possibility of abnormal display.

1) Check the picture carefully. If necessary, adjust any adjustment item above. Perform "Auto tune" on the owner's manual.

PANEL (HEX) Model name Panel vendor

0x07 32AV500PR SHARP 0x09 LGD

Initializing Data setting flowchart after replacing the Signal Unit

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Test Signal Selection

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Every pressing of button on the remote control changes the built-in test patterns on screen as described below in Service Mode.

Picture Signal

Red raster

Green raster

Blue raster

All Black

All White

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 display and Item are subject to the models.

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(1) Firmware :

Version information of microprocessor (2) Time : Total hour of turn the TV on. (Unit : H) (3) Bus line : -- "OK" is normal

SCL-GND (Red indication) : SCL-GND short circuit

SDA-GND (Red indication) : SDA-GND short circuit

SCL-SDA (Red indication) : SCL-SDA short circuit (4) Bus cont : --- "OK" is normal.

G is abnormal (Red indication). When the abnormal status is detected, type name of semiconductor is indicated in red colour.

(5) Block

UV :TV reception mode V1 - V4:VIDEO 1-4 input mode

UV RF

V1 V2 V3

V4 HDMI1 HDMI1 input HDMI2 HDMI2 input

1 SCART 1 2 SCART 2 3 COMPONENT 4 COMPOSITE

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