3745 MAPs
Power MAP 3930: Power Control Subsystem Problems
Symptom Explanation
Conditions That Could Cause This Symptom
Panel display or power indicator
not lit.
Machine will not Power ON.
UEPO
CB1 or any CP tripped
PS2
PCC card or Control Panel
Attention
Power may be present when nothing is dis-
played on the control panel.
Power supplies are sealed replaceable
units.
001
– Check at the control panel.
Are all indicators OFF or **** displayed?
Yes No
002
Go to Step 024 on page 2-23.
003
– Check for the presence of 28 V at the UEPO
switch (see Figure 2-3). Use a CE meter and
check for 28 V between:
Position 5 and the ground of the switch on
the 3745 Models 130-170
Or
Positions A2 and the ground of the switch
on the 3745 Model 17A.
Are 28 volts present?
Yes No
004
– Check the position of CP2 on the primary
power box.
Is CP2 ON?
Yes No
005
– Switch CB1 OFF.
– Switch CP2 ON.
– Switch CB1 ON.
Does CP2 drop again?
Yes No
006
Power ON the 3745.
007
(Step 007 continues)
B1
A1
C1
Battery
Rear View
J1
EPO
1
1
4
2
2
5
3
3
6
D C B A
Wiring Side
Detail C 01C-C1SW1
Figure 2-3. UEPO Switch
007 (continued)
– Check that the voltage select switch
(01H-B1/SW1) is correct for the
input voltage. Refer to Figure 4-37
on page 4-32.
Is it correct?
Yes No
008
Set the voltage select switch
(SW1) to the correct position.
Go to Step 005.
Chapter 2. Map for FRU Isolation
2-21
Содержание 3745 130
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Страница 10: ...viii 3745 Models 130 to 17A MIP ...
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Страница 23: ...Safety Figure 0 2 Ground Wire Connection on Controller Expansion Safety xxi ...
Страница 25: ...Safety Figure 0 4 Ground Wire Connection Between Controller Expansions at Less than Six Meters Safety xxiii ...
Страница 36: ...Safety Figure 0 12 Schutzleiteranschluß an der Erweiterung der Steuereinheit xxxiv 3745 Models 130 to 17A MIP ...
Страница 37: ...Safety Figure 0 13 Schutzleiteranschluß zwischen angeschlossenen Erweiterungen der Steuereinheit Safety xxxv ...
Страница 46: ...Safety xliv 3745 Models 130 to 17A MIP ...
Страница 47: ...Safety Safety xlv ...
Страница 48: ...Safety xlvi 3745 Models 130 to 17A MIP ...
Страница 49: ...Safety Safety xlvii ...
Страница 50: ...Safety xlviii 3745 Models 130 to 17A MIP ...
Страница 51: ...Safety Safety xlix ...
Страница 52: ...Safety l 3745 Models 130 to 17A MIP ...
Страница 53: ...Safety Safety li ...
Страница 54: ...Safety lii 3745 Models 130 to 17A MIP ...
Страница 55: ...Safety Safety liii ...
Страница 56: ...Safety liv 3745 Models 130 to 17A MIP ...
Страница 57: ...Safety Safety lv ...
Страница 58: ...Safety lvi 3745 Models 130 to 17A MIP ...
Страница 60: ...Safety Figure 0 22 3745 Label and Power Rating Plate Locations Front lviii 3745 Models 130 to 17A MIP ...
Страница 66: ...Safety lxiv 3745 Models 130 to 17A MIP ...
Страница 68: ...Preface lxvi 3745 Models 130 to 17A MIP ...
Страница 70: ...Amendments lxviii 3745 Models 130 to 17A MIP ...
Страница 154: ...3745 MAPs 1 84 3745 Models 130 to 17A MIP ...
Страница 200: ...Service Processor MAPs 2 46 3745 Models 130 to 17A MIP ...
Страница 226: ...Diagnostics 3 26 3745 Models 130 to 17A MIP ...
Страница 253: ...FRU Exchange Location 01S Figure 4 31 3745 EPO Chapter 4 3745 FRU Exchange 4 27 ...
Страница 332: ...CE leaving procedure 4 106 3745 Models 130 to 17A MIP ...
Страница 338: ...Maintenance Aids A 6 3745 Models 130 to 17A MIP ...
Страница 354: ...Abbreviation X 6 3745 Models 130 to 17A MIP ...
Страница 359: ......
Страница 360: ...IBM Part Number 03F5017 Printed in Denmark by IBM Danmark A S ð3F5ð17 SY33 2ð7ð ð9 ...
Страница 361: ...Spine information IBM Models 130 to 17A IBM 3745 Communication Controller Maintenance Information Procedures ...