Read Sony DVP-S90D Service Manual online
22
DVP-S90D
Procedure:
1. Press the
1. Press the
I/1
button to turn the power on, and turn the
[FUNCTION] knob to select
“DVD” of A/V amplifier (TA-
S90D).
2. Confirm that the S-Y level is 1.0
± 0.05 Vp-p.
Figure 5-2
SECTION 5
ELECTRICAL ADJUSTMENTS
CHECKING S VIDEO OUTPUT S-C
<Purpose>
This checks whether the S-C satisfies the NTSC Standard. If it is
not correct, the colors will be too dark or light.
This checks whether the S-C satisfies the NTSC Standard. If it is
not correct, the colors will be too dark or light.
Signal
Color bars
Test point
S VIDEO OUT (S-C) jack
(75
(75
Ω terminated)
Instrument
Oscilloscope
Specified Value
286
± 30 mVp-p (NTSC)
300
± 100 mVp-p (PAL)
Procedure:
1. Press the
1. Press the
I/1
button to turn the power on, and turn the
[FUNCTION] knob to select
“DVD” of A/V amplifier (TA-
S90D).
2. Confirm that the S-C burst is 286
± 30 mVp-p (NTSC) or 300
± 100 mVp-p (PAL).
Figure 5-3
Adjustment Location :
Note: During diagnostic check, the characters and color bars can be seen
only with the NTSC monitor. Therefore, for diagnostic check, use
the monitor that supports both NTSC and PAL modes
the monitor that supports both NTSC and PAL modes
Instruments required:
1) Color monitor TV
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
1) Color monitor TV
2) Oscilloscope 1 or 2 phenomena, band width over 100 MHz,
with delay mode
3) DVD reference disc
HLX-501 (J-6090-071-A) (dual layer) (NTSC)
HLX-503 (J-6090-069-A) (single layer) (NTSC)
HLX-504 (J-6090-088-A) (single layer) (NTSC)
HLX-505 (J-6090-089-A) (dual layer) (NTSC)
HLX-506 (J-6090-077-A) (single layer) (PAL)
HLX-507 (J-6090-078-A) (dual layer) (PAL)
HLX-503 (J-6090-069-A) (single layer) (NTSC)
HLX-504 (J-6090-088-A) (single layer) (NTSC)
HLX-505 (J-6090-089-A) (dual layer) (NTSC)
HLX-506 (J-6090-077-A) (single layer) (PAL)
HLX-507 (J-6090-078-A) (dual layer) (PAL)
VIDEO LEVEL ADJUSTMENT
<Purpose>
This adjustment is made to satisfy the NTSC/PAL standard, and if
not adjusted correctly, the brightness will be too large or small.
This adjustment is made to satisfy the NTSC/PAL standard, and if
not adjusted correctly, the brightness will be too large or small.
Signal
Color bars
Test point
VIDEO OUT jack
(75
(75
Ω terminated)
Instrument
Oscilloscope
Adjusting element
RV501 (MB board)
Specified Value
1.0
+ 0.04
Vp-p
– 0.02
Procedure:
1. Press the
1. Press the
I/1
button to turn the power on, and turn the
[FUNCTION] knob to select
“DVD” of A/V amplifier (TA-
S90D).
2. Adjust the RV501 on the MB board to attain 1.0
+ 0.04
Vp-p.
– 0.02
Figure 5-1
CHECKING S VIDEO OUTPUT S-Y
<Purpose>
Check S-terminal video output. If it is incorrect, pictures will not
be displayed correctly in spite of connection to the TV with a S-
terminal cable.
Check S-terminal video output. If it is incorrect, pictures will not
be displayed correctly in spite of connection to the TV with a S-
terminal cable.
Signal
Color bars
Test point
S VIDEO OUT (S-Y) jack
(75
(75
Ω terminated)
Instrument
Oscilloscope
Specified Value
1.0
± 0.05 Vp-p
1.0
+ 0.04
Vp-p
– 0.02
1.0
±
0.05 Vp-p
286
±
50 mVp-p
(NTSC)
or
300
or
300
±
100 mVp-p
(PAL)
IC202
IC103
IC503
IC302
RV501
Video
Level
Adjustment
Level
Adjustment
– MB Board (Component Side) –
AUTO SERVO ADJUSTMENT
After parts related to the servo circuit (RF amplifier (IC001), DSP
(IC302), motor driver (IC401), EEPROM (IC101) so on) are re-
placed, re-adjusting the servo circuit is necessary. Select “ALL” at
“DRIVE AUTO ADJUSTMENT” (Refer to page 16 in TEST
MODE) and adjust DVD-SL (single layer), CD and DVD-DL (dual
layer).
(IC302), motor driver (IC401), EEPROM (IC101) so on) are re-
placed, re-adjusting the servo circuit is necessary. Select “ALL” at
“DRIVE AUTO ADJUSTMENT” (Refer to page 16 in TEST
MODE) and adjust DVD-SL (single layer), CD and DVD-DL (dual
layer).
Click on the first or last page to see other DVP-S90D service manuals if exist.