Sony RM-E700 - Power Supply Section Adjustment; Video Section Adjustment; SYNC Generator Phase

7-1. POWER SUPPLY SECTION ADJUSTMENT
(MC- 67 BOARD)
Adjustment and confirmation are made with the power sup-
ply ON.
Signal Arbitrary
+
Measuring Digital voltmeter
instrument
Ever 5V check
Pin @ of IC501
Measurement
point
Specified 9.0+0.2Vde
value
Digital 5V adjustment
TP501 (Collector of Q506)
Measurement
point
Adjusting
element
RV501
Specified 5.0+0.2Vde
value
Digital—5V adjustment
Measurement | TP502 (Pin ® of CN201)
point
Adjusting
element
RV502
Specified —5.0+0.2Vdc
value
[Checking method]
1) Confirm that the voltage of the pin @ of IC501 is
5.0+0.2 V dc.
[Adjusting method]
1)
Adjust
with
RV501
so
that
the
voltage
at
the
TP501
is
5.040.2
V
dc.
2) Adjust with RV502 so that the voltage at the TP502 is
~5. 0£0.2 V de.
7-2. VIDEO SECTION ADJUSTMENT
7-2-1, 4fsc Adjustment (VI-60 Board)
Signal None
TP 3 (Collector of Q 26)
Measurement
point
Measuring Frequency counter
instrument
Adjusting CV 3
element
4433619+ 10Hz
Specified
value
[Adjusting method]
1) Adjust to 4433619+10Hz with CV 3.
—103—
7-2-2.
CLK Adjustment (VI-60 Board)
None
—}
Signal
Measurement | Pin® of IC 207
point
Measuring Oscilloscope
instrument
Adjusting CV 1
element
Specified 2.5+0.3Vdc
value
(Adjusting method]
1) Adjust to 2.5+ 0.3 Vde with CV1.
7-2-3. PLL Adjustment (VI-60 Board)
Signal Color bar
Measurement | TP7 (Pin @ of IC 209)
point
Measuring Oscilloscope
instrument
Adjusting CV 2
element
Specified 2.5+0.2Vdce
value
[Adjusting method]
1) Adjust to 2.5+0.2Vde with CV2.
7-2-4. SYNC Generator Phase Adjustment
(VI-60 Board)
Signal Color bar
CH 1: CNJ3 VIDEO IN
CH 2: TP5 (Pin@® of IC 207)
Measurement
point
Measuring Oscilloscope
instrument
Adjusting RV 8
element
Specified t=0+50nsec.
{Adjusting method]
1) Adjust to 0+50 nsec. with RV8.