8-33
SRW-5000/5500
8-7-3. HD REF Output Adjustment
Perform this adjustment when the IC1609, IC1613,
IC1627, IC1628, IC1630, IC1632, IC1703, IC1717,
D1602, or FL1600 on the HPR-8/HPR-8A board was
replaced.
Tools
.
Oscilloscope: TEKTRONIX TDS3054B or equivalent
.
75
Z
terminator
Preparation
Check that the equipment has warmed up.
Before starting the adjustment, warm up the VTR and
other equipment by applying power to them for 10 minutes
or more.
HPR-8/HPR-8A Board (Side A)
SYNC Level adjustment
SYNC Level Adjustment
1.
Connect the 75
Z
terminator to the HD REF OUT 1
connector, then connect the oscilloscope.
2.
Check the waveform of the oscilloscope, then adjust
the SYNC level (A).
Adjusting point:
1
1702/HPR-8, HPR-8A (B-1)
Specification:
A = 300
±
5 mV
A
RV1702
A
B
C
D
E
F
G
H
J
K
1
2
3
4
5
D2201 D2203 D2204 D2205
D2207
S200
S2000
S600
RV1600
RV1700 RV1701
TP100
TP101
TP1100
TP1600
TP1601
TP1602
TP1603
TP1604
TP1605
TP1606
TP1607
TP1700
TP1701
TP1702
TP1703
TP1704
TP1705
TP1706
TP1707
TP1708
TP1709
TP1710
TP1711
TP1712
TP1713
TP1714
TP600
TP601
TP602
TP603
TP800
TP8000
TP801
TP802
TP803
E1400
E2200
E2201
E2202
E2203
E2204
E2205
E2206
E2207