Toshiba 40WH08G Service Manual page 12

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>
2300****
TIME : 000000
POWER : 00
BUS CONT : OK
BLOCK : UV V1 V2 V3
Part number of microcomputer (QA01)
Total hour of turn the Power on. (unit: hour)
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 CONT ----"OK" is normal.
When indication shows "Q uuu (Green: OK, Red:
NG)", the device with the number may possibly be dam-
aged.
BLOCK
UV : TV reception mode
V1 : VIDEO 1 input mode (a1)
V2 : VIDEO 2 input mode (a2)
V3 : VIDEO 3 input mode (a3)
The items marked with are not usable to display in the SELF DIAGNOSTIC FUCTION for some model.
*
3) Press "9" button on Remote Control during display of selfcheck display as above, the selfcheck screen for EPG/TEXT
unit as shown below is displayed. (This function is only 40WH08G (EPG model).
SELFCHECK
EPG/TEXT
QF01 XXX QF10 XXX
QF02 XXX QF03 XXX
QF04 XXX QF05 XXX
Part No. Part Name
QF01 MEGATEXT
QF10 DRAM
QF02 SUB-MICOM
QF03 PROGRAM
FLASH-ROM
QF04 DATA
FLASH-ROM
QF05 EEPROM
QV01
XXX Contents
ERR MEGATEXT plus SDA5275 access failed
00 Unknown
20 MEGATEXT plus SDA5275-3P C02-22
00 no DRAM
18 8 Mbit DRAM (2k-refresh type 16 Mbit DRAM)
20 16 Mbit DRAM (4k-refresh type 16 Mbit DRAM)
02 C161RI Version BB step
04 C161RI Version AA step
ERR ROM access failed
xxyy Subsystem Version xx.yy
ERR FLASH-ROM access failed
00 no FLASH-ROM
A4 AM29F040 (AMD, 4Mbit)
MBM29F040C (Fujitsu, 4Mbit)
MX29F040 (Macronix, 4Mbit)
FF Unknown 4Mbit FLASH-ROM
ERR EEPROM access failed
No EEPROM
00
12 8kbit EEPROM
Indicated color of mode now selected : Green and Red
Indicated color of other modes
Green : Normal
Red : The microcomputer 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 QV01.
QV01 : In case of indication green ---Normal
In case of indication red with input signal----
Failure may exist in output line including QV01.
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: White