Checking Component Video Output Y (Us, Canadian, Australian, Px Model); Checking Component Video Output B-Y (Us, Canadian, Australian, Px Model); Checking Component Video Output R-Y (Us, Canadian, Australian, Px Model); Checking Rgb Output R (Aep, Uk Model) - Sony RMT-144A Servise Manual

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5. Checking Component Video Output Y
(US, Canadian, Australian, PX Model)
<Purpose>
This checks component video output Y. If it is incorrect, correct
brightness will not be attained when connected to, for instance,
projector.
Mode
Signal
Test point
Instrument
Specification
Checking method:
1) In the test mode initial menu "6" Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the Y level is 1.0 ± 0.05 Vp-p.
6. Checking Component Video Output B-Y
(US, Canadian, Australian, PX Model)
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<Purpose>
This checks component video output B-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance,
projector.
Mode
Signal
Test point
Instrument
Specification
Checking method:
1) In the test mode initial menu "6" Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the B-Y level is A.
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Video level adjustment in test mode
Color bars
COMPONENT VIDEO OUT (Y)
connector, (75 Ω terminated)
Oscilloscope
1.0 ± 0.05 Vp-p
1.0 ± 0.05 Vp-p
Fig. 7-5.
Video level adjustment in test mode
Color bars
COMPONENT VIDEO OUT (P
connector (75 Ω terminated)
Oscilloscope
A = 646 ± 50 mVp-p (US,Canadian)
A = 700 ± 50 mVp-p (others)
A
Fig. 7-6.
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7. Checking Component Video Output R-Y
(US, Canadian, Australian, PX Model)
<Purpose>
This checks component video output R-Y. If it is incorrect, correct
colors will not be displayed when connected to, for instance,
projector.
Mode
Signal
Test point
Instrument
Specification
Checking method:
1) In the test mode initial menu "6" Video Level Adjustment, set
so that color bars are generated.
2) Confirm that the R-Y level is B.
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Checking RGB Output R (AEP, UK Model)

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<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.
Mode
)
B
Signal
Test point
Instrument
Specification
Checking method:
1) Confirm that the R level is 700 ± 50 mVp-p.
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Video level adjustment in test mode
Color bars
COMPONENT VIDEO OUT (P
connector (75 Ω terminated)
Oscilloscope
A = 646 ± 50 mVp-p (US,Canadian)
A = 700 ± 50 mVp-p (others)
B
Fig. 7-7.
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In test mode,
Push [0] for Syscon Diagnosis and
push [7] for Video and push [5] for
RGB out
Color bars
LINE 1 (RGB)-TV connector pin qg
(75 Ω terminated)
Oscilloscope
700 ± 50 mVp-p
700 ± 50 mVp-p
Fig. 7-8.
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R
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