Toshiba 21J1ES 서비스 매뉴얼 - 페이지 8

{카테고리_이름} Toshiba 21J1ES에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Toshiba 21J1ES 32 페이지. Color television
Toshiba 21J1ES에 대해서도 마찬가지입니다: 회로도 (12 페이지)

8. 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 are executed properly.

2) During diagnosis, the following displays are shown.

2 3 * * * * * *

POWER

: 00

BUS LINE

: OK

BUS CONT : OK

BLOCK

: UV V1

Part number of microprocessor(Q100)

Operation number of protecting circuit ----"00" is nor-

mal.

When indication is other than "00", overcurrent apts to

flow, and circuit parts may possibly be damaged.

BUS LINE CHECK ----"OK" is normal.

"SDA1-GND" ------------- SDA-GND short circuit.

"SCL1-GND" -------------- SCL-GND short circuit.

"SCL1-SDA1" ------------- SCL-SDA short circuit.

BUS CONT ----"OK" is normal.

When indication shows "Q

the number may possibly be damaged.

BLOCK

UV : TV reception mode

V1 : VIDEO input mode (

NG", the device with

Indicated color of mode now selected : Green and Red

Indicated color of other modes

Green : Normal

Red :

The microprocessor operates to provide judgement

of no video signal. The red color is still indicated

though the signal is input, failure may exist in input

signal line including Q100.

- 8 -

: White