R Sub Contrast Adjustment; B Sub Contrast Adjustment; Γ 1 Adjustment; Γ 2 Adjustment - Sony XVM-R70 Service Manual
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Also See for XVM-R70:
- Operating instructions manual (65 pages) ,
- Product manual (3 pages) ,
- User manual (3 pages)
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5-12-6. R Sub Contrast Adjustment
Adjustment Method:
1) Select R SUB CONT from the FOR FACTORY MODE.
2) Connect oscilloscope between TP812 (+) and TP500 (–).
3) Adjust so that the signal level F stands at the specified value
R
r
using the
and
keys on the remote controller.
Specified value: 3.4 ± 0.1 V
Adjustment location: LCD board
5-12-7. B Sub Contrast Adjustment
Adjustment Method:
1) Select B SUB CONT from the FOR FACTORY MODE.
2) Connect oscilloscope between TP810 (+) and TP500 (–).
3) Adjust so that the signal level G stands at the specified value
R
r
using the
and
keys on the remote controller.
Specified value: 3.4 ± 0.1 V
Adjustment location: LCD board
5-12-8. γ 1 Adjustment
Adjustment Method:
1) Select Gamma1 from the FOR FACTORY MODE.
2) Connect oscilloscope between TP811 (+) and TP500 (–).
3) Adjust so that the signal level H stands at the specified value
using the
R
and
r
keys on the remote controller.
Specified value: 1.9 ± 0.1 V
H
Adjustment location: LCD board
F
0V
G
0V
0V
5-12-9. γ 2 Adjustment
Adjustment Method:
1) Select Gamma2 from the FOR FACTORY MODE.
2) Connect oscilloscope between TP811 (+) and TP500 (–).
3) Adjust so that the signal level I stands at the specified value us-
R
r
ing the
and
keys on the remote controller.
Specified value: 3.1 ± 0.1 V
I
Adjustment location: LCD board
5-12-10. VCO Free Run Adjustment
Adjustment Method:
1) Select VCO Free from the FOR FACTOR MODE.
2) Connect frequency counter between TP407 (+) and TP404 (–).
3) Adjust so that the reading on the counter stands at the specified
R
r
value using the
and
keys on the remote controller.
Specified value: 15,734 ± 50 Hz
Adjustment location: LCD board
5-12-11. V POS Adjustment
Adjustment Method:
1) Input mono scope signal from the NTS pattern generator.
2) Select PLL/V POS from the FOR FACTORY MODE.
3) Observe the mono scope screen on the monitor and adjust so that
the screen is vertically symmetrical using the
the remote controller.
5-12-12. H POS Adjustment
Adjustment Method:
1) Input mono scope signal from the NTS pattern generator.
2) Select H POS from the FOR FACTORY MODE.
3) Observe the mono scope screen on the monitor and adjust so that
the screen is horizontally symmetrical using the
on the remote controller.
XVM-R70
0V
R
r
and
keys on
R
r
and
keys
17
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