Start
Problems During Machine, EC or MES Installation
When installing a 3746-900, the
IBM 3746 Expansion Unit Model 950, Installation Guide, SY33-2114
should be used. When installing an EC or MES, the instructions supplied should be used. It is possible
that the task or diagnostic you were asked to perform during the installation detected an error, and you
were requested to start troubleshooting using this manual.
The primary purpose of this manual is to resolve problems that occur in an operational environment after a
successful installation. That is, the machine has worked previously and is now failing.
At installation time, or after an EC or MES is installed, it is possible that errors may occur due to condi-
tions which would not exist in an operational environment.
¹
Cables plugged incorrectly.
¹
Terminators missing.
¹
Mismatch between CDF-E and machine configuration.
¹
Mismatch between line characteristics and set ups.
¹
Wrong address set.
¹
Top card connectors incorrectly installed.
¹
Loose cards.
During your path through the service guide, you should remember these possibilities and, when the failing
area is identified, check with the aid of this manual and YZ pages that these conditions do not exist prior
to changing FRUs.
Now, starting at the top of the “Selection Table,” work down until you find an entry that matches the
symptom detected during the installation.
Be sure to read “Exchange Precautions” on page 4-1 before removing any FRUs from this
machine.
Selection Table
IF YOU HAVE A...
THEN GO TO...
3746-900 resource not present in CDF-E
“MAP 2665: 3746-900 Resource Not Present in CDF-E”
on page 2-60.
3746-900 control panel code reported
“3746-900 Control Panel Codes” on page 1-15.
3746-900 diagnostic failure
Display the FRU list
“Display the FRU List After a Diagnostic Failure” on
page 1-154.
3746-900 any Power Problem
“MAP 5100: 3746 Model 900 Power Control Subsystem
Problems” on page 2-4
multiaccess enclosure any Power Problem
The
Multiaccess Enclosure Installation and Maintenance,
manual manual.
3746-900 control panel symptoms
“3746-900 Control Panel Symptoms” on page 1-14.
General Verbal Symptoms
“General Verbal Symptoms” on page 1-13.
1-12
3746-900: Service Guide
Summary of Contents for FlashSystem 900
Page 1: ...3746 Nways Multiprotocol Controller Model 900 Service Guide SY33 2116 02...
Page 2: ......
Page 3: ...3746 Nways Multiprotocol Controller Model 900 Service Guide SY33 2116 02...
Page 14: ...xii 3746 900 Service Guide...
Page 16: ...xiv 3746 900 Service Guide...
Page 22: ...xx 3746 900 Service Guide...
Page 29: ...Safety Figure 0 3 Ground Wire Connection On Controller Expansion SAFETY xxvii...
Page 60: ...Safety lviii 3746 900 Service Guide...
Page 61: ...Safety SAFETY lix...
Page 62: ...Safety lx 3746 900 Service Guide...
Page 63: ...Safety SAFETY lxi...
Page 64: ...Safety lxii 3746 900 Service Guide...
Page 65: ...Safety SAFETY lxiii...
Page 66: ...Safety lxiv 3746 900 Service Guide...
Page 67: ...Safety...
Page 68: ...Safety lxvi 3746 900 Service Guide...
Page 69: ...Safety SAFETY lxvii...
Page 70: ...Safety lxviii 3746 900 Service Guide...
Page 71: ...Safety...
Page 72: ...Safety lxx 3746 900 Service Guide...
Page 73: ...Safety SAFETY lxxi...
Page 74: ...Safety lxxii 3746 900 Service Guide...
Page 75: ...Safety SAFETY lxxiii...
Page 76: ...Safety lxxiv 3746 900 Service Guide...
Page 77: ...Safety SAFETY lxxv...
Page 78: ...Safety lxxvi 3746 900 Service Guide...
Page 92: ...Safety xc 3746 900 Service Guide...
Page 94: ...Safety xcii 3746 900 Service Guide...
Page 129: ...3746 900 FRU Exchange 010 continued Go to MAP Ready LED ON on page 1 52 Chapter 1 START 1 35...
Page 276: ...3746 900 MAPs Figure 2 6 CP2 Circuit 2 18 3746 900 Service Guide...
Page 325: ...3746 900 MAPs 026 continued Go to Step 014 on page 2 65 Chapter 2 MAPs for FRU Isolation 2 67...
Page 340: ...3746 900 MAPs 113 continued Go to Step 001 on page 2 68 2 82 3746 900 Service Guide...
Page 414: ...Service Processor MAPs 2 156 3746 900 Service Guide...
Page 484: ...FRU Exchange Figure 4 16 3746 Model 9x0 CBSP Cassette 4 18 3746 900 Service Guide...
Page 495: ...FRU Exchange Figure 4 23 3746 900 Rear of DC Power Box Chapter 4 3746 900 FRU Exchange 4 29...
Page 510: ...FRU Exchange Figure 4 39 3746 900 LIC16 Coupler 4 44 3746 900 Service Guide...
Page 520: ...FRU Exchange Figure 4 45 3746 900 Transformer Handling 4 54 3746 900 Service Guide...
Page 522: ...FRU Exchange 4 56 3746 900 Service Guide...
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