SPECIFIC INFORMATIONS GENERAL ADJUSTMENTS

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.

SELF CHECK

￿NO. 23 * * * * * *

￿POWER : 000

￿BUS LINE : OK

￿BUS CONT : OK

￿BLOCK : UV V1 V2

or

QV01 QV01S

SYNC

 

￿Part number of microprocessor (QA01)

￿ Operation number of protection circuit (current limiter) . . . .

“000” is normal.

￿ BUS line check

 

 

“OK”

Normal

 

 

 

 

 

 

 

 

 

“SCL-GND” or “NG”

SCL-GND short circuit

 

 

 

 

 

 

“SDA-GND” or “NG”

SDA-GND short circuit

 

 

 

“SCL-SDA” or “NG”

SCL-SDA short circuit

￿BUS line ACK (acknowledge) check

“OK”

Normal

 

Display of Location Number . . . .

NG

(Display example)

 

 

“QA02 NG”, “H001 NG”, “Q501 NG” etc.

Note: The indication of failure place is only one place though failure places are plural. When

 

 

 

 

repair of a failure place finishes, the next failure place is indicated. (The order of priority of

 

 

 

 

indication is left side.)

￿ Sync. signal check

 

Green display

Normal

 

 

 

Cyan display

No check

 

 

Red display

NG

 

 

 

 

 

 

 

 

 

 

 

 

UV

TV mode

 

 

 

 

 

V1

VIDEO 1 mode

 

 

 

 

 

 

V2

VIDEO 2 mode

 

 

 

 

 

 

 

 

 

 

 

*The items marked with are not usable to display in the SELF DIAGNOSTIC FUNCTION for some model.

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Toshiba 32HFX72 service manual Self Diagnostic Function, Self Check, BUS Line OK BUS Cont OK, Sync