Sharp SX68JS10 Service Manual page 9

NO. Adjustment part
1 E-12CH(PAL colour bar) is received.
1-1 SUB-COLOUR
2 Make the image normal with the remote con-
2
I C bus adjust-
ment (RF signal)
3 Connect the oscilloscope to TP3802. (10:1
4 Set the sub colour adjustment mode with the
1 DVD signal is received. (Half colour bar signal)
1-2 * SUB-COLOUR
2 Make the image normal with the remote con-
2
I C bus adjust-
ment (DVD
3 Connect the oscilloscope to TP3802. (10:1
signal)
4 Set the sub colour adjustment mode (DVD) with
NO. Adjustment part
1 Select the sub-tint adjustment mode (automatic
1-1 SUB-TINT
2
I C bus adjust-
2 Connect the oscilloscope to TP800 (B-Y).
ment (RF signal)
3 Vary the sub tint data to adjust the waveform to
1 Select the sub-tint adjustment mode (automatic
1-2 * SUB-TINT
2
I C bus adjust-
2 Connect the oscilloscope to TP800(B-Y).
ment (DVD
signal)
3 Vary the sub tint data to adjust the waveform to
4 Release the adjustment mode.
PAL CHROMA ADJUSTMENT
Adjusting procedure and conditions
troller.
probe is used.)
Range: 2V/Div.
Sweep time : 20µsec/Div.
remote controller, and vary the sub colour data
to make 100%W of the colour bar and RED at
the same level for adjustment shown in Fig. 1-
1.
troller.
probe is used.)
Range : 2V/Div.
Sweep time: 20µsec/Div.
the remote controller, and vary the sub colour
(DVD) data to make 100%W of the colour bar
and RED at the same level for adjustment
shown in Fig. 1-2. (* It is being examined.)
NTSC CHROMA ADJUSTMENT
Adjusting procedure and conditions
Y cut) to receive JA-8CH(NTSC colour bar).
Range : 20mV/Div. (AC)
Sweep time: 20µsec/Div. (10:1 probe is used.)
be gained as shown in Fig. 1-1.
TP3803 ........... (KY) 6 pin
Y cut) to receive the DVD colour bar signal.
Range : 20mV/Div. (AC)
Sweep time: 20µsec/Div. (10:1 probe is used.).
be gained as shown in Fig. 1-1.
75%W Y
(B-Y)
(B-Y)
9
Waveform and others
Cy G B
Mg
100%W R
Fig. 1-1
Cy G
B
W Y
100%W Mg R
Fig. 1-2
Waveform and others
W Y Cy G Mg R B
Fig. 1-1
W Y Cy G Mg R B
Fig. 1-1
SX68JS10