WFM90D and WFM91D ServiceManual 9-1

Diagrams

The interconnectdiagram, Figure 9--1, shows the jumpers and connectors for the

WFM90D and WFM91D Handheld Waveform,Vector,Picture, and Audio

Monitor.(Figure 9--2 shows the interconnect diagramfor instruments with serial

numbers below B020100.)

A3Bottom
Board
10
A1I nput
Board
60
10
J9J2
J20
J19
J5
A2Top Board
12
20
J16
A5LCD Di splay
Module
VideoIn
J3
RefIn
J2
VideoOut
J1
AudioIn
J4
J14
10
J6 J15
J13
J10
J21
J17
DCin 11--18V
Testonly
NiCadBattery Pack
6C Cell Batteries
J7
20
A6SDI Interface
Board
J1

Figure9 -1: Interconnect diagram f or instruments with serial numbers B020100 and above