Sony DPP-MS300 Marketing, Service Manual

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4-1
SECTION 4
ELECTRICAL ADJUSTMENTS
During the adjustment, see the Adjustment and Adjust-
ment Pats on page 4-7.
Pre-Adjustment Preparations
1. Equipment required
Electrical adjustment requires the following measuring equip-
ment.
(1) Monitor TV
(2) Oscilloscope: 2 phenomena, bend 30 MHz or more, with de-
lay mode (use 10 : 1 probe unless otherwise specified)
(3) Frequency counter
(4) Pattern generator
(5) Digital voltmeter
(6) Video print paper
(7) Video print cartridge
(8) Vector scope
2. Connection of Equipment
Following the designation of input terminal (S-VIDEO or VIDEO),
connect measuring units as shown in Fig. 4-1 and make adjust-
ment.
The input terminal is designated with ( ) in the signal column.
Unless otherwise designated, either input terminal may be used.
Note: In the adjustment where the S-VIDEO input is designated, if ad-
justment was made with the VIDEO input. The specification of
this set will not be satisfied. Always follow the designation.
If adjustment was made using the VTR with S-VIDEO OUT termi-
nal as a signal source, the performance of this set depends on that
VTR. Therefore, use the pattern generator with the Y/C separate
output terminals, if possible.
Fig. 4-1
If S-VIDEO is designated
Pattern Generator
Pattern Generator
Pattern Generator
VIDEO IN
S-VIDEO
IN
Monitor TV
Set
VIDEO IN VIDEO
OUT
S-VIDEO OUT
VIDEO OUT
(75
Ω
)
VIDEO OUT
(75
Ω
)
Y OUT (75
Ω
)
Chroma OUT
(75
Ω
)
VTR with S-VIDEO terminal (E-E mode)
•
If pattern generator does not provide Y/C separate
output terminals
•
If pattern generator provide
Y/C separate output terminals
If VIDEO is designated