Lenovo NetVista Hardware Maintenance Manual (HMM) for NetVista 6832 and 6833 s - Page 155

P&D-D Signal Pin Assignments, evaluated in the case where both Charge Power

Page 155 highlights

P&D-D Signal Pin Assignments Pin Signal 1 TMDS Data2 + 2 TMDS Data2 - 3 TMDS Data2 return 4 Unused 5 Unused 6 Unused 7 TMDS Clock return 8 Charge power1 + 9 1394 pair A, data 10 1394 pair A, data + 11 TMDS Data1 + 12 TMDS Data1 13 TMDS Data1 return 14 TMDS Clock + 15 TMDS Clock - Pin Signal 16 USB data + 17 USB data - 18 1394 outer shield (optional) & Charge Power return2 19 1394 Vg 20 1394 Vp 21 TMDS Data0 + 22 TMDS Data0 - 23 TMDS Data0 return 24 Unused 25 DDC return 26 DDC data (SDA) 27 DDC clock (SCL) 28 +5 VDC 29 1394 pair B, Clock + 30 1394 pair B, Clock - 1 Optional output from monitor. 2 Note: The IEEE-1394 internal cable bundle needs an outer shield to minimize internal crosstalk within the cable construction. The outer EMI containment shield for the IEEE-1394 function will be provided by the overall P&D cable shield. If the internal bundle shield for IEEE-1394 is required, this may be terminated to pin #18. It is recommended that this implementation be evaluated in the case where both Charge Power return and the IEEE-1394 internal cable bundle shield will be commoned to pin #18. Parts/Test Point Locations 123

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Parts/Test Point Locations
123
1
Optional output from monitor.
2
Note: The IEEE-1394 internal cable bundle
needs an outer shield to minimize internal
crosstalk within the cable construction. The outer
EMI containment shield for the IEEE-1394 func-
tion will be provided by the overall P&D cable
shield. If the internal bundle shield for IEEE-1394
is required, this may be terminated to pin #18. It
is recommended that this implementation be
evaluated in the case where both Charge Power
return and the IEEE-1394 internal cable bundle
shield will be commoned to pin #18.
P&D-D Signal Pin Assignments
Pin
Signal
Pin
Signal
1
TMDS Data2 +
16
USB data +
2
TMDS Data2 -
17
USB data -
3
TMDS Data2 return
18
1394 outer shield
(optional) & Charge
Power return
2
4
Unused
19
1394 Vg
5
Unused
20
1394 Vp
6
Unused
21
TMDS Data0 +
7
TMDS Clock return
22
TMDS Data0 -
8
Charge power
1
+
23
TMDS Data0 return
9
1394 pair A, data -
24
Unused
10
1394 pair A, data +
25
DDC return
11
TMDS Data1 +
26
DDC data (SDA)
12
TMDS Data1 -
27
DDC clock (SCL)
13
TMDS Data1 return
28
+5 VDC
14
TMDS Clock +
29
1394 pair B, Clock +
15
TMDS Clock -
30
1394 pair B, Clock -