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A Quad B Board
TP11
TP40
TP13
TP42
1
TB3
TP14
TP41
TP12
Ground Stud
Top View of Controller
TB5
1
TB4
11
22
F2
MCB
F1
Figure 11.1
1391-DES Test Point Locations
TP11
TP52
Main Logic Control Board
TP29
TP19
TP20
1
2
1
S1
10
SW1
1
F3
A Quad B Board
Main Logic Control Board
Display, Memory and Adapter Boards
Chapter 11
Troubleshooting
TB1
1
TP50
TP2
TP28
TP13
TP14
TP12
TP30
TP8
TP9
TP10
TP7
TP16
TP15
TP31
TP21
TP51
TB2
1
F3 provided on 15 & 22.5A units only
15A = Bussmann KLM10 or equivalent
22.5A = Bussmann FNQ6 1/4 or equivalent
Display Board
TP11 TP60
TP61
TP12
Memory Board
11-11
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