SECAM CHROMA ADJUSTMENTFUNCTION OPERATION CHECKING (1) (VIDEO & AUDIO)
NO ADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR OTHERSNO ADJUSTMENT POINTADJUSTMENT CONDITION / PROCEDUREWAVEFORM OR OTHERS
1 SECAM BLACK (1) Receive (SECAM COLOR BAR).1 CONTRAST (1) Receive "Monoscope Pattern" signal.
LEVEL(2) Select SECAM black level adjustment R-Y Key(2) Press to Menu mode, then select Picture mode
R-Y/B-Y mode.and set to select CONTRAST.
2
IC BUS (3) Connect the oscilloscope to pin 20 of IC800 (3) Press Volume Up/Down key to check whether
ADJUSTMENT(TP802/R out).the CONTRAST effect is OK or not.
Range: 10 mV/Div. 2 COLOUR Key(1) Receive "Colour Bar" signal.
# 29B-FG5, 29B- Sweep time: 20 ?sec/Div.(2) Press to Menu mode, then select Picture mode
OFF SET
FG8, 29B-FX5, (Prove 10:1 is used.)and set to select COLOUR.
29B-FX8, 29B-(4) Vary R-Y data to minimize the offset between (3) Press Volume Up/Down key to check whether
FX1 only. the non-signal line and signal line as shown in Fig. 2-1(a)the COLOUR effect is OK or not.
Fig. 2-1(b).
3 BRIGHTNESS (1) Receive "Monoscope Pattern" signal.
(5) Select SECAM black level adjustment B-Y
Key(2) Press to Menu mode, then select Picture mode
mode.
and set to select BRIGHTNESS.
(6) Reconnect the oscilloscope to
(3) Press Volume Up/Down key to check whether
TP801 ..................(KY) 6 pin.the BRIGHTNESS effect is OK or not.
The conditions are the same as in Item 3.
4 TINT Key(1) Receive the "NTSC Colour Bar" signal thru AV in.
(7) Vary B-Y data to minimize the offset between
(2) Press to Menu mode, then select Picture mode
the non-signal line and signal line as shown in
and set to select TINT.
Fig. 2-2(b).
(3) Press Volume Up/Down key to check TINT,
UP for GREEN direction and DOWN for RED
Fig. 2-1(b)direction whether is OK or not.
5 SHARPNESS (1) Receive "Monoscope Pattern" signal.
Key(2) Press to Menu mode, then select Picture mode
and set to select SHARPNESS.
(3) Press Volume Up/Down key to check whether
15the SHARPNESS effect is OK or not.
7 NORMAL Key(1) Once in Picture mode, and the NORMAL key Note:
is pressed, all the settings will be present to If nothing is display mean
normal setting.contrast, colour, bright, tint,
(Normal setting value for every mode, refer on sharpness are all in normal
OFF SET
page (12/30)).setting.
Fig. 2-2(a)
8 WHITE TEMP(1) Receive "Monoscope Pattern" signal.
(2) Set FUNCTION to select WHITE TEMP.
(3) Press Volume Up/Down key to check WHITE
TEMP Option, STANDARD: NORMAL
SETTING, WARM for more REDDISH
direction changing, COOL for more BLUISH
direction changing.
Fig. 2-2(b)
29B-FG5 29B-FX5
15-115-2 |
ACEC
