Vco Cont Frequency Check - Sony Digital Betacam DVW-707 Maintenance Manual

7-2. VCO CONT Frequency Check

Note
. Conduct this check when the TG-207/207P, ES-23/23P
boards or CCD block is only replaced.
. Before measurement, turn the power ON and warm up
the camcorder for about 10 munites.
Preparation
. Connect as follows.
VIDEO GEN
OUT LOCK
DVW-790WS/709WS SG
DVW-790WSP/709WSP
. On the setup menu, set as follows.
PAGE : S12*FUNCTON 1/2
ITEM : TEST OUT
Adjustment Procedure
1. Equipment : Frequency counter, Oscilloscope
Test point : VIDEO OUT connector
GND : E1 (DCP-17 board)
Spec. : 3,579,545 ±10 Hz (NTSC)
4,433,618 ± 5 Hz (PAL)
If the measured value is out of the specification, adjust it as
follows.
2. On the setup menu, adjust as follows.
PAGE : S40*ENC ADJ.
ITEM : INT SC FREQUENCY
: 3,579,545 ±10 Hz (NTSC)
Spec.
4,433,618 ±5 Hz (PAL)
B
1
A
2
E1
3
4
5
6
DVW-790WS/709WS/707
DVW-790WSP/709WSP/707P P2V1
SC
IN
OUT
Frequency
counter
ENC
C D E F
DCP-17 board (A side)
7-2. VCO CONT Frequency Check
7-5