Samsung SyncMaster CSH7839L, Service Manual

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3 Product Specifications
3-2 CSH7839L/CSH9839L
3-2 Pin Assignments
5
15
Figure 3-1. Male Type Figure 3-2. Male Type
Sync
Type
Pin No.
15-Pin Signal Cable Connector (Figure 3-1)
Cable Adapter (Figure 3-2)
Macintosh
Separate Composite
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Red
Green
Blue
GND
DDC Return
GND-R
GND-G
GND-B
Reserved
GND-Sync/Self-raster
GND
DDC Data
H-Sync
V-Sync
DDC Clock
Red
Green
Blue
GND
DDC Return
GND-R
GND-G
GND-B
Reserved
GND-Sync/Self-raster
GND
DDC Data
H/V-Sync
Not Used
DDC Clock
GND-R
Red
H/V Sync
Sense 0
Green
GND-G
Sense 1
Reserved
Blue
Sense 2
GND
V-Sync
GND-B
GND
H-Sync
BNC Connectors
BNC connectors are used with coaxial cable for
improved signal transmission. Better signal
transmission becomes critical at high frequencies,
such as those required for 1280 x 1024 resolution.
Most video boards that operate at 1280 x 1024
resolution recommend using coaxial cable with
BNC connectors. The 5 BNC connectors on the
rear of the monitor can accept Red, Green and
Blue video. Composite sync can be applied
separately, or combined with the Green video
signal (commonly referred to as “composite
sync-on green”). If composite sync-on-green is
used, then only 3 of the 5 BNC connectors are
used. The connectors are labeled accordingly.
Pin
Assignment
Signals
Sync-on-Green Composite Sync Separate Sync
Red
Green + Sync
Blue
NC
NC
1
2
3
4
5
Red
Green
Blue
H/V Comp. Sync
NC
Red
Green
Blue
H-Sync
V-Sync
R G B
H/V V
1
2 3
4
5
Figure 3-3. BNC Signal Input Type