Checking Component Video Output Y; Checking Rgb Output R; Checking Rgb Output G; Checking Rgb Output B - Sony DVP-S725D Service Manual

5. Checking Component Video Output Y

(MB-82/85 BOARD) (DVP-S525D: Australian/S725D)
<Purpose>
This checks component video output Y. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.
Mode Video level adjustment in test mode
Signal Color bars
COMPONENT VIDEO OUT (Y)
Test point
connector (75 Ω terminated)
Instrument Oscilloscope
Specification 1.0 ± 0.1 Vp-p
Checking method:
1) Confirm that the Y level is 1.0 ± 0.1 Vp-p.
Figure 7-5

6. Checking RGB Output R

(MB-85 BOARD) (EXCEPT Australian model)
<Purpose>
This checks RGB output R. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with an EURO
AV connecting cord.
In test mode,
Push
Mode
push
RGB out
Signal Color bars
EURO AV 1 (RGB)-TV connector
Test point
pin !∞ (75 Ω terminated)
Instrument Oscilloscope
Specification 700 ± 70 mVp-p
Checking method:
1) Confirm that the R level is 700 ± 70 mVp-p.
Figure 7-6
1.0 ± 0.1 Vp-p
[0]
for Syscon Diagnosis and
[7] [5]
for Video and push for
700 ± 70 mVp-p

7. Checking RGB Output G

(MB-85 BOARD) (EXCEPT Australian model)
<Purpose>
This checks RGB output G. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with an EURO
AV connecting cord.
Mode
Signal
Test point
Instrument
Specification
Checking method:
1) Confirm that the G level is 700 ± 70 mVp-p.

8. Checking RGB Output B

(MB-85 BOARD) (EXCEPT Australian model)
<Purpose>
This checks RGB output B. If it is incorrect, pictures will not be
displayed correctly in spite of connection to the TV with an EURO
AV connecting cord.
Mode
Signal
Test point
Instrument
Specification
Checking method:
1) Confirm that the B level is 700 ± 70 mVp-p.
7-3
In test mode,
[0]
Push for Syscon Diagnosis and
[7] [5]
push for Video and push
RGB out
Color bars
EURO AV 1 (RGB)-TV connector
pin !¡ (75 Ω terminated)
Oscilloscope
700 ± 70 mVp-p
700 ± 70 mVp-p
Figure 7-7
In test mode,
[0]
Push for Syscon Diagnosis and
[7] [5]
push for Video and push
RGB out
Color bars
EURO AV 1 (RGB)-TV connector
pin 7 (75 Ω terminated)
Oscilloscope
700 ± 70 mVp-p
700 ± 70 mVp-p
Figure 7-8
for
for