Sd Y Level Adjustment; Sc Vco Adjustment - Sony HDW-750 Maintenance Manual

9-29. SC VCO Adjustment

9-30. SD Y Level Adjustment

9-29. SC VCO Adjustment
Perform this adjustment only when the HKDW-702 (DC-
110/110A board) is installed.
Preparation
. Allow warm-up of about 10 minutes.
. Complete setup with the use of the setup menu.
MENU : SERVICE
PAGE : 09*SD ADJUST
ITEM : SD SDI LOCK/FREE → FREE
. Complete the equipment connection as shown below.
CH2
TP
IN
HDW-750
Adjustment Procedure
1. Complete the adjustment as shown below by using the
setup menu.
Measurement point : TP400 (B-3)/DC-110A board
(A side) or
TP400 (B-1)/DC-110 board
(B side)
MENU : SERVICE
PAGE : 09*SD ADJUST
ITEM : SD SDI VCO FREQ.
27.0 ± 0.1 MHz
Specifications :
Setting upon Completion of Adjustment
Complete the setting as shown below by using the setup
menu.
MENU : SERVICE
PAGE : 09*SD ADJUST
ITEM : SD SDI LOCK/FREE → LOCK
9-28
CH2
OUT
Oscilloscope Frequency counter
9-30. SD Y Level Adjustment
Perform this adjustment only when the HKDW-702 (DC-
110/110A board) is installed.
Preparation
. OUTPUT/DCC switch (inside panel) → BARS
. Complete setup with the use of the setup menu.
MENU : OPERATION
PAGE : 01*OUTPUT SEL
ITEM : REAR BNC OUTSEL → VBS
DOWN CON MODE → LETTR
Adjustment Procedure
1. Complete the adjustment as shown below by using the
setup menu.
Equipment : SD waveform monitor or
oscilloscope
Measurement point : TEST OUT connector
(outside panel)
MENU : SERVICE
PAGE : 09*SD ADJUST
ITEM : SD VBS LEVEL
A = 714 ± 5 mV (For NTSC)
Specifications :
A = 700 ± 5 mV (For PAL)
A
A B C
1
TP601
TP1
2
TP600
3
TP202
TP400
TP200
4
TP201
D
DC-110A board (A side)
HDW-750/750CE V1