Firmware Renewal Mode - Sylvania 6620LDT Service Manual

1. Turn the power on and press [EJECT] button on the
remote control unit to put the LCD TV/DVD into
DVD mode. Then remove the disc.
2. To put the LCD TV/DVD into F/W version up mode,
press [9], [8], [7], [6], and [SEARCH MODE] but-
tons on the remote control unit in that order.
Fig. a appears on the screen.
" ******* " differs depending on the models.
F/W Version Up Mode
Please insert a DISC
for F/W Version Up.
Fig. a Version Up Mode Screen
3. Insert the disc for version up into the disc slot.
4. The LCD TV/DVD enters the F/W version up mode
automatically. Fig. c appears on the screen. If you
enter the F/W for different models, "Disc Error" will
appear on the screen, then the disc will be ejected
automatically.
" ******* " differ depending on the models.
F/W Version Up Mode
VERSION :
Reading...
(*1)
Fig. c Programming Mode Screen
The appearance shown in (*1) of Fig. c is
described as follows:
No. Appearance
1 Reading... Sending files into the memory
2 Erasing... Erasing previous version data
3 Programming... Writing new version data

FIRMWARE RENEWAL MODE

Model No : *******
VERSION : *.**
EXIT: SELECT
Model No : *******
VERSION : *.**
************.ab7
State
5. After programming is finished, the disc will be
ejected automatically. Fig. e appears on the screen
and the checksum will be shown in (*2).
" ******* " differ depending on the models.
F/W Version Up Mode
VERSION :
Completed
SUM : 7ABC
(*2)
Fig. e Completed Program Mode Screen
At this time, no button is available.
6. Remove the disc.
7. Press [CH. o / p] button on the unit to go to TV
mode, or press [POWER] button on the unit to turn
the power off.
8. Press [EJECT] button on the remote control unit to
put the LCD TV/DVD into DVD mode again.
9. Press [1], [2], [3], [4], and [DISPLAY] buttons on the
remote control unit in that order.
Fig. g appears on the screen.
" ******* " differs depending on the models.
MODEL : *******
Version : *.**
Region : *
EEPROM CLEAR : CLEAR
10.Press [CLEAR] button on the remote control unit.
Fig. h appears on the screen.
" ******* " differs depending on the models.
MODEL : *******
Version : *.**
Region : *
EEPROM CLEAR : OK
EEPROM CLEAR : CLEAR
When "OK" appears on the screen, the factory
default will be set. Then the firmware renewal
mode is complete.
11.To exit this mode, press [CH. o / p] or [SELECT]
button to go to TV mode, or press [POWER] button
to turn the power off.
8-1
Model No : *******
VERSION : *.**
************.ab7
EXIT: SELECT
Fig. g
EXIT: SELECT
Fig. h
L2550FW