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Replacing a Defective EEPROM

Fi re 3-24 showshow to remove the EEPROM from the Model 4tHlt,425t,or

I systemunit without removing the CPU board. To replace an EEPROM in

a Model 4tXk,42Ss,or 433ssystem unit, you must remove the CPU board. Refer

to the appropriate CPU board in Figure 3-23 for the location of the EEPROM.

Figure3-24. Rephzcingthe EEPROM in a Model 400t, 425t, or 400dl

3-26

Configuration

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 142 143

Service Handbook 1
~ ktfOmSSHOfIcontelned 2
● Printing History 3
Emissions Regulations 4
VCCI Class 1 ITE Equipment 5
Acoustics 6
Chapter 2 8
Chapter 4 9
Chapter 5 10
Diagnostics 10
Chapter 9 11
Reference 11
Chapter 10 11
Service Notes 11
Contents 12
HP A1448ACDROM Drive ,. . 13
Product Information 17
Model 400dl Overview 18
Physical Configurations 19
System Unit 20
Monitors 20
Keyboards 20
Overview 22
42Ss,or 433s system 23
1-8 Product Information 24
AccessoryCards/Boards 25
Internal Mass Storage 28
Environmental/ 29
Installation/PM 2 29
Installation 30
Preventive Maintenance 30
Environmental Specifications 31
Regulatory Requirements 31
● Cotilguration 33
------A— ---- J .--— 34
GraphicsSelectionJumper 35
(ColorGraphics 35
~nfiguratio 37
(‘ ‘~’“u’ 40
Cnnfimardinn 3-9 41
1111111llullll lllllllllllr 43
1111111ulllllllllllllllr 43
Rodime 200 MB Disk Drive 44
Terminators 45
”””””””””””””Jl@q 48
(Bottom View) 49
Pack Terminator 49
Configuration 49
Hewlett-Packard 1.3-C3B Drive 51
Single In-1ineTerminators 51
Configuration 3-19 51
HP A1449A 0.25-in. QIC 60-MB 52
HP A1448A CD-ROM Drive 53
HP A1447A DAT Tape Drive 54
Series 400 Systems EEPROM 55
CPU Board with 57
Integrated GraphIce 57
Replacing a Defective EEPROM 58
Mode Systems 60
Workstation Do 66
Selecting the Primary Network 67
EX CONFIG <Return> 68
Quit <Return> 69
● Troubleshooting 73
Figwe 4-1. Main Flowcharf 74
(Continu@ 74
Troubleshooting 4-3 75
Troubleshooting 4-9 81
Ttouble.shooting 82
‘Aesum‘hatyou‘Pror?vdd 87
400dl Systems 88
(Model 400L 4251, and 400dl) 89
CPU Board 91
CircuitFRU Pin Numbets 92
425t System Units 93
Checkout Procedures for 95
●12 ●11 ●10 ●9 98
Trouhlc%hnotin@ 99
(Model 400s, 425s, and 433s) 100
Calendar Baltety Message 101
Memory Module Failures 102
Troubleshooting 103
‘UNEXPECTED” Error Messages 105
3 Hex LSDS 106
LED Status and Error Messages 108
IHHHIIHHHI 109
DMHHHHHI 109
Power LED O 110
State and Failure Codes 112
O~ratings tern 113
Not enough mem 114
Boot ROM Messages 115
SYSTEU SEARCH MODE 116
(Continued) 117
Ifproblemcontinues,replawCPU 118
Using the HP-UX ce.utilities 120
./help <Return > 121
SIW Refer to the Series 300 121
. Peripherals 123
Field Replaceable Units 125
Quantum (400t/425t) 126
A1630-60011 A1630-69011 126
Hem icnher~ 127
(Refer to Figure 7-2) 129
(Rejir to Figure 7:2) 130
Part No 130
Diagrams 133
L‘“‘“‘“F!!S!?W 134
--0’’’”= 135
-t&i&Ii 1“””’g~wi;: 136
,.,::,,: 139
Reference Manuals 141
Order Number A1630-90009 143

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HP 425s Specifiche Pagina 58

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