Sony RM-VZ950T Service Manual page 24

2. LCD test
LCD display: Explanatory notes
Second
digit
First
digit
First line
Second line
Third line
(1) Transmission mark blinking check:
Only the " " is displayed for 0.5 sec and hidden for 0.5 sec
repeatedly. Proceed to (2) if the jog is pushed.
(2) First line, horizontal one-row dots vertical scanning check:
The transmission mark is cleared, and horizontal one-row dots of
2 to 5 digit characters on the first line are displayed from the top
row to the bottom row, every 0.3 sec for each row. This is repeated
until the jog is pushed. Proceed to (3) if the jog is pushed.
(3) Second line, horizontal one-row dots vertical scanning check:
The display of the first line is cleared, and the similar to (2) check
is made to the 1 to 6 digit characters on the second line. Proceed to
(4) if the jog is pushed.
(4) Third line, horizontal one-row dots vertical scanning check:
The display of the second line is cleared, and the similar to (2)
check is made to the 1 to 6 digit characters on the third line. Pro-
ceed to (5) if the jog is pushed.
(5) First digit character, vertical one-column dots horizontal
scanning check:
The display of the third line is cleared, and horizontal one-column
dots of 2, 3 digit characters on the first digit are displayed from
the left to the right, every 0.3 sec for each column. This is repeated
until the jog is pushed. Proceed to (6) if the jog is pushed.
(6) Second digit character, vertical one-column dots horizontal
scanning check:
The display of the first digit is cleared, and the similar to (5) check
is made to the 1 to 3 line characters on the second digit. Proceed to
(7) if the jog is pushed.
(7) Third digit character, vertical one-column dots horizontal
scanning check:
The display of the second digit is cleared, and the similar to (5)
check is made to the 1 to 3 line characters on the third digit. Pro-
ceed to (8) if the jog is pushed.
(8) Fourth digit character, vertical one-column dots horizontal
scanning check:
The display of the third digit is cleared, and the similar to (5) check
is made to the 1 to 3 line characters on the fourth digit. Proceed to
(9) if the jog is pushed.
(9) Fifth digit character, vertical one-column dots horizontal
scanning check:
The display of the fourth digit is cleared, and the similar to (5)
check is made to the 1 to 3 line characters on the fifth digit. Pro-
ceed to (10) if the jog is pushed.
Fourth Sixth
digit digit
Third Fifth
digit digit
(10) Sixth digit character, vertical one-column dots horizontal
scanning check:
The display of the fifth digit is cleared, and the similar to (5) check
is made to the 2, 3 line characters on the sixth digit. Proceed to
(11) if the jog is pushed.
(11) Backlight blinking check:
The backlight turns on for 0.5 sec when "BACK LIGHT ON" is
displayed, and it turns off for 0.5 sec when "BACK LIGHT OFF"
is displayed. This is repeated until the jog is pushed. When the jog
is pushed, the backlight turns off, the LCD test finishes, and the
"KEY TEST" is displayed for selection.
3. KEY test
When a key other than that specified on the LCD was pushed, or
when multiple keys were pushed, "KEY CHECK NG??" is dis-
played for one second, and then the LCD returns to the screen
displayed last.
(1) 1 key check:
The set waits for the input of
is displayed. When
POWER key data code is outputted from the REM (output of 3
frames), and the set proceeds to (2).
(2) t key check:
The set waits for the input of
displayed. When the
(3) / key check:
The set waits for the input of
displayed. When the
(4) a key check:
The set waits for the input of
displayed. When the
[1]
(5) key check:
The set waits for the input of
[1]
played. When the
[2]
(6) key check:
The set waits for the input of
[2]
played. When the
[3]
(7) key check:
The set waits for the input of
[3]
played. When the
[4]
(8) key check:
The set waits for the input of
[4]
played. When the
[5]
(9) key check:
The set waits for the input of
[5]
played. When the
[6]
(10) key check:
The set waits for the input of
[6]
played. When the
[7]
(11) key check:
The set waits for the input of
[7]
played. When the
[8]
(12) key check:
The set waits for the input of
[8]
played. When the
– 24 –
key when "push POWER key"
1
key is pushed, the initially preset TV
1
t key when "push INPUT key" is
t key is pushed, the set proceeds to (3).
/ key when "push TEXT key" is
/ key is pushed, the set proceeds to (4).
a key when "push TV key" is
key is pushed, the set proceeds to (5).
a
[1]
key when "push 1 key" is dis-
key is pushed, the set proceeds to (6).
[2]
key when "push 2 key" is dis-
key is pushed, the set proceeds to (7).
[3]
key when "push 3 key" is dis-
key is pushed, the set proceeds to (8).
[4]
key when "push 4 key" is dis-
key is pushed, the set proceeds to (9).
[5]
key when "push 5 key" is dis-
key is pushed, the set proceeds to (10).
[6]
key when "push 6 key" is dis-
key is pushed, the set proceeds to (11).
[7]
key when "push 7 key" is dis-
key is pushed, the set proceeds to (12).
[8]
key when "push 8 key" is dis-
key is pushed, the set proceeds to (13).