Sony SLV-286EE - Page 83

2-3-1. Switching Position Adjustment (MA-203 Board)
Purpose:
Adjust the interval between A ch and B ch of tape playback
output.
Improve the interchangeability with other tapes and sets.
When it is out of order, the interval appears on the screen, the
screen is disturbed.
Mode PB
Signal Alignment tape
CH1: CNJOO1 VIDEO LINE OUT
CH2: Pin @ of CN802 (RV-33 board)
(RF SWP)
Measurement Point
Measuring Instrument
Adjusting Element
Oscilloscope
RV502
6.5 + 0.5 H (416 + 32 psec)
Specified Value
Adjusting Method:
1) Adjust the tracking position to the center by pushing tracking
buttons (Al, [vy] (on remote commander).
Check that switching position is 6.5 + 0.5 H.
(416 + 32 usec)
If not meet the specified value, turn RV502 and repeat steps
1) to 2).
2)
TV screen
Normal tracking
Pushing A button makes right moving,
¥ button makes left moving.
ee
enlargement
Vertical sync. signal
i
bh ena
|+-—_——J
CH2 6.5 +0.5H
(Pin
@
of
CN802)
|
(416
+
32
usec)
Fig. 7-2-5.
7-3
2-3-2. Syne AGC Adjustment (RV-33 Board)
. CNJOO1 VIDEO LINE OUT
Adjusting Element RVO001
Specified Value 1.00 + 0.05 Vp-p
Note : VIDEO LINE OUT terminal must be terminates at 75Q.
Adjusting Method:
1) With RVOO1, adjust the VIDEO signal level to 1.00 + 0.05
Vp-p
Whit (100%)
1.00 + 0.05 Vp-p
Fig. 7-2-6
2-3-3. White Clip Adjustment (RV-33 Board)
Purpose:
Adjust the frequency of FM modulated YFM signal dotsm’t go
too high.
When it is out of order, white goes flat and black s over-
modulated.
Pin © of ICOO1
Oscilloscope
White clip : 180 + 5%
Dark clip :50+ 10%
Signal
Measurement Point
Measuring Instrument
Adjusting Element
Specified Value
White clip
T 180+ 5%
100%
50+ 10%
Fig, 7-2-7