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9-2
WFM90D and WFM91D Service Manual
A3 Bottom
Board
10
A1 Input
Board
60
10
J9J2
J20
J19
J5
A2 Top Board
12
20
J16
A5 LCD Display
Module
Video In
J3
Ref In
J2
Video Out
J1
Audio In
J4
J14
10
J6 J15
A4 Backlight
Board
W4W3W2W1
J13
J10
J21
J17
DC in 11--18V
Test only
Backlight
J25
NiCad Battery Pack
6 C Cell Batteries
J7
20
A6 SDI Interface
Board
J1
Figure 9- 2: Interconnect diagram for instruments with serial numbers below B020100