Tektronix TDS5000B Service manual
xx
TDS5000B Series
ZZZ
Digital Phosphor Oscilloscope
Read This First
www.tektronix.com
P061433105*
*
061-4331-05
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries
or suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication
supersedes that in all previously published material. Specifications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Contacting Tektronix
Tektronix, Inc.
14200 SW Karl Braun Drive
P.O. Box 5 0 0
Beaverto
USA
For product information, sales, service, and technical support:
n, OR 97077
In North America, call 1-800-833-9200.
Worl dwid e, visi t www.tektronix.com to find contacts in your area.
Table of Contents
General Safety Summary .......................................................................................... 1
Compliance Information........................................................................................... 2
EMC Compliance................................... ................................ ........................... 2
Safety Comp
Environmental Considerations .......... ................................ .................................. ... 6
Preface ............................................................................................................... 7
Quick Start User Manual Information............. ................................ ............................... 8
Getting Started .... . ..... . ..... . ..... . ..... . ..... . ..... . ..... . ..... . ... . . ..... . ..... . ..... . ..... . ..... . ..... . ... 8
Operating Requirements ... ................................ ................................ ................... 8
Powerin
Powering Off the Instrument ............ ................................ ................................ .... 10
Removing the Power ......................................................................................... 11
Using Your Instrument ......................... ................................ .............................. 11
Standard Accessories......................................................................................... 11
Service Manual Information...................................................................................... 12
ons............................... .................................. ................................ ........ 12
Opti
Side and Rear Panels ........... ................................ ................................ .............. 12
Cleaning ....................................................................................................... 14
PC Interface Board and Motherboard Cable Connections ............................................... 15
039-0185-xx Service Information......................................... ................................ .. 17
Replaceable Parts ............................................................................................. 28
ecification and Performance Verification .................................................................... 31
Sp
liance............................................................................................. 4
g On the Instrument................................................................................. 10
TDS5000B Read This First i
Table of Contents
ii TDS5000B Read This First
General Safety Summary
Review the following safety precautions to avoid injury and prevent damage to
this product or any products connected to it.
To avoid potential hazards, use this product only as specified.
To Avoid Fire or Personal
Injury
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Connect and Disconnect Properly. Do not connect or disconnect probes or test
leads while they are connected to a voltage source.
Ground the Product. This product is grounded through the grounding conductor
of the power cord. To avoid electric shock, the grounding conductor must be
connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe a ll ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
The inputs are not rated for connection to mains or Category II, III, or IV circuits.
Connect the probe reference lead to earth ground only.
Do Not Operate Without Covers. Do not operate this product with covers or
panels removed.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Do Not Operate With Suspected Failures. If you suspect that there is damage to
this product, have it inspected by qualified service personnel.
Do Not Operate in Wet/Damp Conditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
Terms in this Manual
TDS5000B Read This First 1
These terms may appear in this manual:
WAR NI NG . Warning statements identify conditions or practices that could result
in injury or loss of life.
Compliance Information
CAUTION. Caution statements identify conditions or practices that could result in
damage to this
product or other property.
Symbols and Terms on the
Product
These terms may appear on the product:
DANGER indicates an injury hazard immediately accessible as you read
the marking.
WARNING indicates an injury hazard not immediately accessible as you
read the marking.
CAUTION indicates a hazard to property including the product.
The following symbol(s) may appear on the product:
Compliance Information
This section lists the EMC (electromagnetic compliance), safety, and
environmental standards with which the instrument complies. This EMC section
replaces the Certifications and Compliances section in Table 1–11, of the
TDS5000B Series Technical Reference manual (071-1420-xx).
EMC Compliance
EC Declaration of
Conformity – EMC
Meets intent of Directive 2004/108/EC for Electromagnetic Compatibility.
Compliance was demonstrated to the following specifications as listed in the
Official Journal of the European Com
EN 61326-1:2006, EN 61326-2-1:2006. EMC requirements for electrical equipment
for measurement, control, and laboratory use.
CISPR 11:2003. Radiated and conducted emissions, Group 1, Class A
IEC 61000-4-2:2001. Electrostatic discharge immunity
IEC 61000-4-3:2002. RF electromagnetic field immunity
IEC 61000-4-4:2004. Electrical fast transient/burst immunity
IEC 61000-4-5:2001. Power line surge immunity
IEC 61000-4-6:2003. Conducted RF immunity
IEC 61000-4-11:2004. Voltage dips and interruptions immunity
munities:
1234
5
5
6
2 TDS5000B Read This First
Compliance Information
EN 61000-3-2:2
006. AC power line harmonic emissions
EN 61000-3-3:1995. Voltage changes, fluctuations, and flicker
European Contact.
Tektronix UK, Ltd.
West ern Pe n
insula
West ern Road
Bracknell, RG12 1RF
United Kingdom
1
This product is intended for use in nonresidential areas only. Use in residential areas may cause electromagnetic
interference.
2
Emissions which exceed the levels required by this standard may occur when this equipment is connected to a
test object.
3
To ensure compliance with the EMC standards listed here, high quality shielded interface cables should be used.
4
Instrument rebooting may be experienced where the EUT takes longer than 10 seconds to recover from IEC
61000-4-11 transient immunity test.
5
Under these conditions, the specifications are amended as follows: 1 mV/division to 1 V/division: < 0.2 division
waveform displacement or < 0.4 division increase in peak -to peak noise for (IEC 61000-4-3 and IEC 61000-4-6
tests)
6
Performance Criterion C applied at the 70%/25 cycle Voltage-Dip and the 0%/250 cycle Voltage-Interruption test
levels (IEC 61000-4-11).
Australia / New Zealand
Declaration of
Conform
ity–EMC
Complies with the EMC provision of the Radiocommunications Act per the
following standard, in accordance with ACMA:
CISPR 11:2003. Radiated and Conducted Emissions, Group 1, Class A, in
accordance with EN 61326-1:2006 and EN 61326-2-1:2006.
TDS5000B Read This First 3
Compliance Information
Safety Compli
ance
EC Declaration of
Conformity – Low Voltage
U.S. Natio
nally Recognized
Testing Laboratory Listing
Canadian Certification
Additional Compliances
Equipment Type
Compliance was demonstrated to the following specification as listed in the
Official Journal of the European Communities:
Low Voltage Directive 2006/95/EC.
EN 61010-1: 2001. Safety requirements for electrical equipment for
measurement control and laboratory use.
UL 61010B-1. Standard for electrical measuring and test equipment.
CAN/CSA-C22.2 No. 61010.1-97. Safety requirements for electrical
equipment for measurement, control, and laboratory use. Part 1.
IEC 61010-1: 2001. Safety requirements for electrical equipment for
measurement, control, and laboratory use.
nd measuring equipment.
Test a
Safety Class
Pollution Degree
Description
Pollution Degree
Class 1 – grounded product.
A measure of the contaminants that could occur in the environment around
and within a product. Typically the internal environment inside a product is
considered to be the same as the external. Products should be used only in the
environment for which they are rated.
Pollution Degree 2. Normally only dry, nonconductive pollution occurs.
Occasionally a temporary conductivity that is caused by condensation must
expected. This location is a typical office/home environment. Temporary
be
condensation occurs only when the product is out of service.
Pollution Degree 2 (as defined in IEC 61010-1). Note: Rated for indoor use only.
4 TDS5000B Read This First
Compliance Information
Installation (Overvoltage)
Category Descriptions
Overvoltage Category
Terminals on th
designations. The installation categories are:
Measurement C
low-voltage installation.
Measuremen
installation.
Measuremen
connected to the low-voltage installation.
Measureme
directly connected to MAINS.
Overvoltage Category II (as defined in IEC 61010-1)
is product may have different installation (overvoltage) category
ategory IV. For measurements performed at the source of
t Category III. For measurements performed in the building
t Category II. For m easurements performed on circuits directly
nt Category I. For measurements performed on circuits not
TDS5000B Read This First 5
Compliance Information
Environmenta
Product End-of-Life
l Considerations
This section provides information about the environmental impact of the product.
Observe the following guidelines when recycling an instrument or component:
Handling
Equipment Recycling. Production of this equipment required the extraction and
use of natural resources. The equipment may contain substances that could be
harmful to
end of life. In order to avoid release of such substances into the environment and
to reduce the use of natural resources, w e encourage you to recycle this product
in an appropriate system that will ensure that most of the materials are reused or
recycled appropriately.
Mercur
mercury. Disposal may be regulated due to environmental considerations. Please
contact your local authorities or, within the U nited States, refer to the E-cycling
Central Web page (www.eiae.org) for disposal or recycling information.
yNotification. This product uses an LCD backlight lamp that contains
the environment or human health if improperly handled at the product’s
This sym
Union requirements according to Directives 2002/96/EC and 2006/66/EC
on waste electrical and electronic equipment (WEEE) and batteries. For
informa
Tektronix Web site (www.tektronix.com).
bol indicates that this product complies with the applicable European
tion about recycling options, check the Support/Service section of the
Restriction of Hazardous
Substances
Perchlorate Materials. This product contains one or more type CR lithium
eries. According to the state of California, CR lithium batteries are
batt
classified as perchlorate materials and require special handling. See
www.dtsc.ca.gov/hazardouswaste/perchlorate for additional information.
is product has been classified as Monitoring and Control equipment, and is
Th
outside the scope of the 2002/95/EC RoHS Directive.
6 TDS5000B Read This First
Preface
Preface
The followin
and the TDS5000B Series Service manual.
g information affects the TDS5000B Series Quick Start User manual
TDS5000B Read This First 7
Quick Start User Manual Information
Quick Start Us
er Manual Information
Getting Started
Use the foll
instrument quick start user manual documentation.
Operating Requirements
Place the bottom fee t of the instrument on a cart or bench and observe the
following clearance requirements:
owing information to replace or clarify information contained in your
Top, Rear, Front, and Right Side: 0 in (0 mm)
Left Sid
Bottom: 0.75 in (19 mm) minimum or 0 in (0 mm) standing on feet, flip
stand d
e: 3 in (76 mm)
own
TION. To ensure proper cooling, keep the bottom and sides of the instrument
CAU
clear of obstructions.
8 TDS5000B Read This First
Quick Start User Manual Information
Environmental
Characteristic Description
Humidity, ope
Altitude, operating
Temperature, ambient operating
Maximum voltage
1MΩ input impedance 150 VRMS CAT I, and ≤400 peak
50 Ω input impedance <1 Vrms for settings below 100 mV/div
Requirements
rating
20% to 80% relative humidity with a maximum
wet bulb temperature of +29 °C (+84.2 °F) at
or below +45 °
Upper limit derated to 30% relative humidity
at +45 °C (+113 °F)
9,842 ft. (3,000 m)
+5 °C to +45 °C (+41 °F to +113 °F)
For steady-state sinusoidal waveforms,
derate at 2
9VRMSat≥3MHz
<5 Vrms for 100 mV/div settings and above
C (+113 °F) noncondensing.
0 dB/decade above 200 kHz to
TDS5000B Read This First 9
Quick Start User Manual Information
Powering On th
e Instrument
Power Supply Requirements
Source volta
100-240 V
115 V
RMS
WARNING. To avoid fire or shock hazard that could result in injury or loss of life,
observe al
further ratings information before making connections to the product.
ge and frequency
±10%, 47-63 Hz, or
RMS
±10%, 360-440 Hz
Power consum
<220 watts
ption
l ratings and markings on the product. Consult the product manual for
Powering Off the Instrument
10 TDS5000B Read This First
Removing the Power
Using Your Instrument
Quick Start User Manual Information
Documentation for your instrument is found by selecting Help >
Document
ation....
Standard Accessories
Before using your instrument, read the following information in the quick start
user man
The standard accessories list in the TDS5000B Series Quick Start User manual
(071-1355-XX) has been upgraded to include the following discs:
ual:
Safety Summary
Creating an Emergency Startup Disk
Getting Acquainted with Your Instrument
TDS5000B Series Operating System Restore disc (SN B040000 and above)
063-4160-xx.
TDS5000B Series Operating System Restore disc (SN B030000 to B039999)
063-3985-xx.
TDS5000B Series Operating System Restore disc (SN B020000 to SN
B029999) 063-3759-xx
TDS5000B Series Operating System Restore disc (SN B010100 to SN
B019999) 063-3693-xx
NOTE. Only serial numbers below B060100 include a fl oppy disc.
TDS5000B Read This First 11
Service Manual Information
Service Manua
Options
Side and R
ear Panels
l Information
Use the follo
your TDS5000B Series Digital Phosphor Oscilloscopes (071-1362-XX) service
manual. This service manual is on the Tektronix Web site.
The TDS5054B and TDS5104B instruments have been upgraded to include the
following options: Option 18 (Touch Screen) and Option 3M (16 M points record
length).
The following side-panel illustrations (in the Theory of Operation section) have
been upgraded to include the latest component locations and are for reference
only. U
(071-1355-XX) to connect your instrument.
wing information to replace or clarify information contained in
se the instructions in the TDS5000B Series Quick Start User manual
12 TDS5000B Read This First
Service Manual Information
TDS5000B Read This First 13
Service Manual Information
Cleaning
Exterior Cleaning
Use these procedures to clean your oscilloscope. If additional cleaning is required
have your oscilloscope serviced by qualified service personnel.
Clean the exterior surfaces of the chassis with a dry lint-free cloth or a soft-bristle
brush. If any dirt remains, use a cloth or swab dipped in a 75% isopropyl alcohol
solution. Use a swab to clean narrow spaces around controls and connectors.
Do not use abrasive compounds on any part of the chassis that may damage the
sis.
chas
Clean the On/Standby switch using a dampened cleaning towel. Do not spray or
the switch directly.
wet
CAUTION. Do not use chemical cleaning agents that might damage the plastics
used in this oscilloscope. Use only deionized water when cleaning the front-panel
buttons. Use a 75% isopropyl alcohol solution as a cleaner and rinse with
deionized water. Before using any other type of cleaner, contact your Tektronix
Service Center or representative.
Clean the flat panel display surface by gently rubbing the display with a
clean-room wipe (such as Wypall Medium Duty Wipes, #05701, available from
Kimberly-Clark Corporation).
14 TDS5000B Read This First
Service Manual Information
PC Interface B
oard and Motherboard Cable Connections
Replace Figures 6-17 and 6–18 in the Removal and Installation Procedures).
Figure 6-17: PC Interface board and motherboard cable connections
TDS5000B Read This First 15
Service Manual Information
Figure 6-18: Desktop hard drive removal
16 TDS5000B Read This First
Service Manual Information
039-0185-xx S
ervice Information
Use the following information when servicing instruments with serial numbers
B040000 and above or instruments using the 039-0185-xx Mother board. This
information
Table 1: 039-0185-xx μATX POST codes
Item no. Module
1
2 Memory Presence
3 Early Memory
4 Extend Memory DRAM
Turn Off Chipset and
CPU test
Initialization
select
is only for qualified service personnel.
Displayed POST
code Description
C0
C1
C2 OEM Specific-Board Initialization
C3
OEM Specific-Cache control cache
Processor Status (1FLAGS) Verification
Tests the following proce ssor status flags: Carry, zero, sign,
overflow.
The BIOS sets each flag and verifies.
The flags are set, then turns each flag off and verifies if it is off.
Read/Write/Verify all the CPU r egisters except SS, SP, and BP
with data pattern FF and 00.
RAM must be periodically refreshed to keep the memory from
decaying. This function ensures that the memory refresh
function is working properly.
First block memory detect
OEM Specific-Test to size on-board memory
Early chip set initialization
Memory presence test
OEM c hip set routines
Clear low 64K of memory
Test first 64K memory
OEM Specific-Turn on extended memory
Initialization
Cyrix CPU initialization
Cache initialization
TDS5000B Read This First 17
Service Manual Information
Table 1: 039-0185-xx μATX POST codes, (cont.)
Displayed POST
Item no. Module
5
6
7
8
9
10 Unclaimed NMI B1
11
12
Special Display
Handling
Early Shadow C5 OEM specific-Early shadow enable for fast boot
Cache presence test C6
CMOS Check CF CMOS checkup
Spurious
Program Chip Set
Setup Pages
Force load Default to
chipset
Reserved 2
Early Super IO Init
Reserved 4
Blank video
Reserved 6
Init KBC
KB test 8 Test the keyboard
Reserved 9
Mouse Init A Initialize the mouse
Onboard Audio init
Reserved
Reserved D
CheckSum Check
Reserved F
Auto detect E EPROM
Reserved 11
CMOS Check
Reserved 13
Chipset Default load
Reserved 15
Clock Init
Reserved 17
Identify the CPU
code Description
C4 OEM Specific-Display/Video Switch
B0
BF
E1–EF E1- Page 1, E2 - Page 2, and so on
1
3
5
7
B
C
E
10
12
14
16 Init onboard clock generator
18
Handling so that the Switch Handling display switch errors
never occur
External cache size detection
If interrupt occurs in protected mode.
If unmasked NMI occurs, display
Press F1 to disable NMI, F2 reboot.
To program chipset from defaults values
Chipset defaults program
Early Initialize of the super IO
Reset the Video controller
Keyboard controller init
Initialize the onboard audio controller if it exits
Check the integrity of the ROM, BIOS, and message
Check the Flash type and copy flash
write/erase routines to 0F000h segments
Check CMOS circuitry and reset CMOS
Program the chipset registers with CMOS values
Check the CPU ID and init L1/L2 cache
18 TDS5000B Read This First
Table 1: 039-0185-xx μATX POST codes, (cont.)
Displayed POST
Item no. Module
12
Reserved 19
Reserved 1A
Setup Interrupt Vector
Table
Reserved
Early PM Init 1D
Reserved 1E
Re-initial KB 1F Re-init KB
Reserved 20
HPM init 21
Reserved 22
Test CMOS Interface
and Battery Status
Reserved 24
Reserved 25
Reserved 26
KBC final Init
Reserved 28
Initialize Video Inter face
Reserved 2A
Reserved 2B
Reserved
Video memory test 2D Test video memory, write sign-on message to screen.
Reserved 2E
Reserved 2F
Reserved 30
Reserved 31
Reserved 32
PS2 Mouse setup
Reserved 34
Test DMA Controller 0
Reserved 36
Test DMA Controller 1
code Description
1B
1C
23
27
29
2C
33
35 Test DMA channel 0
37 Test DMA channel 1
Service Manual Information
Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR
and
initialize INT 00h-1Fh according to INT_TBL
First step initialize if single CPU onboard
If support HPM, HPM get initialized here
Verifies CMOS is working correctly and detects bad battery.
If failed, load CMOS defaults and load into chipset
Final Initial KBC and setup BIOS data area
Read CMOS location 14h to find out type of video in use.
Detect and Initialize Video Adapter.
Setup shadow RAM - Enable shadow according to Setup.
Setup shadow RAM - Enable shadow according to Setup.
Setup PS2 Mouse and reset KB
TDS5000B Read This First 19
Service Manual Information
Table 1: 039-0185-xx μATX POST codes, (cont.)
Displayed POST
Item no. Module
12
Reserved 38
Test DMA Page
Registers
Reserved 3A
Reserved 3B
Test Timer Counter 2 3C Test 8254 Timer 0 Counter 2.
Reserved 3D
Test 8259-1 Mask Bits 3E
Reserved 3F
Test 8259-2 Mask Bits 40
Reserved 41
Reserved 42
Test Stuck 8259’s
Interrupt Bits
Test 8259 Interrupt
Functionality
Reserved 44
Reserved 45
Reserved 46
Set EISA Mode
Reserved 48
Size Base and Extended
Memory
Reserved 4A
Reserved 4B
Reserved
Reserved 4D
Test Base and Extended
Memory
code Description
39 Test DMA Page Registers.
43
47
49
4C
4E
Verify 8259 Channel 1 masked interrupts by alternately turning
off and on the interrupt lines.
Verify 8259 Channel 2 masked interrupts by alternately turning
off and on the interrupt lines.
Turn off interrupts then verify no interrupt mask register is on.
Force an interrupt and verify the interrupt occurred.
If EISA non-volatile memory checksum is good, execute EISA
initialization.
If not, execute ISA tests an clear EISA mode flag.
Size base memory from 256 K to 640 K and extended memory
above 1 MB.
Test base memory from 256K to 640K and extended memory
above 1 MB using various patterns.
NOTE. This test is skipped in EISA mode and can be skipped
with ESC key in ISA mode.
Reserved 4F
USB init
Reserved 51
50
Initialize USB controller
20 TDS5000B Read This First
Table 1: 039-0185-xx μATX POST codes, (cont.)
Displayed POST
Item no. Module
12
Memory Test 52
Reserved 53
Reserved 54
CPU display
Reserved 56
PnP Init
Reserved 58
Setup Virus Protect
Reserved 5A
Awdflash Load
Reserved
Onboard I/O Init
Reserved 5E
Reserved 5F
Setup enable
Reserved 61
Reserved 62
Initialize & Install Mouse
Reserved 64
PS2 Mouse special
Reserved 66
ACPI init
Reserved 68
Setup Cache Controller
Reserved 6A
Setup Entering
Reserved
Initialize Floppy Drive &
Controller
Reserved 6E
FDD install 6F
Reserved 70
code Description
55
57
59
5B
5C
5D
60
63
65
67
69 Initialize cache controller
6B
6C
6D
Service Manual Information
Test all memory of memory above 1 MB using Virtual 8086
mode, page mode, and clear the memory
Detect CPU speed and display
CPU vendor specific version string and turn on all necessary
CPU features
Display PnP logo and PnP early init
Setup virus protect according to Setup
If required, will auto load Awdflash.exe in POST
Initializing onboard super IO
Display setup message and enable setup functions
Detect if mouse is present
initialize mouse
install interrupt vectors
Special treatment to PS2 Mouse port
ACPI s ub-system initializing
Enter setup check and auto-configuration check up
Initialize floppy disk drive controller and any drives.
Install FDD and setup BIOS data area parameters
TDS5000B Read This First 21
Service Manual Information
Table 1: 039-0185-xx μATX POST codes, (cont.)
Displayed POST
Item no. Module
12
Reserved 71
Reserved 72
Initialize Hard Drive &
Controller
Reserved 74
Install HDD
Reserved 76
Detect & Initializ e
Serial/Parallel
Reserved 78
Reserved 79
Detect & Initialize Math
Coprocessor
Reserved 7B
HDD Check for Write
protection
Reserved 7D
Reserved 7E
POST error check
Reserved 80
Reserved 81
Security Check
Write CMOS
Pre-boot Enable 84 Enable parity checker
Initialize Option ROMs
code Description
73 Initialize hard drive controller and any drives.
75
77
7A Initialize math coprocessor
7C
7F
82
83
85
IDE device detection and install
Initialize any serial and parallel ports (also game port)
HDD check out
Check POST error and display them and ask for user
intervention
Ask password security (optional)
Write all CMOS values back to RAM and clear screen
Enable NMI, enable cache before boot.
Initialize any option ROMs present from C8000h to EFFFFh.
NOTE. When FSCAN option is enabled, ROMs initialize from
C8000h to F7FFFh.
Reserved 86
Reserved 87
Reserved 88
Reserved 89
Reserved 8A
Reserved 8B
Reserved
8C
22 TDS5000B Read This First
Table 1: 039-0185-xx μATX POST codes, (cont.)
Displayed POST
Item no. Module
12
Quick POST Codes
13
Reserved 8D
Reserved 8E
Reserved 8F
Reserved 90
Reserved 91
Reserved 92
Boot Medium detection 93 Read and store boot partition head and
Final Init 94
Special KBC patch
Boot Attempt 96
Boot FF
Init onboard device 65
Early System setup
KBC and CMOS Init
Video Init 68
8259 Init 69
code Description
95
66
67
Service Manual Information
Final init for last micro details before boot
Set system speed for boot Setup NumLock status according to
Setup
Set low stack Boot via INT 19h.
Early Initialized the super IO
Reset Video controller
Keyboard controller init
Test the Keyboard
Initialized the mouse
Onboard audio controller initialize if exist
Check the integrity of the ROM, BIOS, and message
Check Flash type and copy flash write/erase routines to
0F000h segments
Check CMOS Circuitry and reset CMOS Program the chipset
registers with CMOS values Init onboard clock generator
Check the CPU ID and init L1/L2 cache
Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR
and initialize INT 00h-1Fh according to INT_TBL First step
initialize if single CPU onboard.
Re-init KB If support HPM, HPM get initialized here
Verifies CMOS is working correctly
detects bad battery
If failed, load CMOS defaults and load into chipset
Final Initial KBC and setup BIOS data area.
Read CMOS location 14h to find out type of video in use.
Detect and Initialize Video Adapter.
Test video memory, write sign-on message to screen.
Setup shadow RAM - Enable shadow according to Setup.
Init 8259 channel 1 and mask IRQ 9
TDS5000B Read This First 23
Service Manual Information
Table 1: 039-0185-xx μATX POST codes, (cont.)
Displayed POST
Item no. Module
13
Memory test 6A
CPU Detect and IO init
Reserved
Reserved 6D
Reserved 6E
Reserved 6F
Setup Init
Setup Cache C ontroller
Install FDD 72
Install HDD 73 Initialize hard drive controller and any drives
Detect & Initialize Math
Coprocessor
HDD Check for Write
protection
Reserved 76
Display POST error
CMOS and Option ROM
Init
code Description
6B
6C
70
71 Initialize cache controller
74 Initialize math coprocessor
75
77
78
Quick M emory Test
Detect CPU speed and display CPU vendor specific version
string and turn on all necessary CPU features
Display PnP logo and PnP early init
Setup virus protect according to Setup.
If required, will auto load Awdflash.exe in POST
Initializing onboard super IO
Display setup message and enable setup functions
Detect if mouse is present, initialize mouse, install interrupt
vectors
Special treatment to PS2 Mouse port
ACPI sub-system initializing
Enter setup check and auto-configuration check up
Initialize floppy disk drive controller and any drives
Install FDD and setup BIOS data area parameters
IDE device detection and install Initialize any serial and parallel
ports (also game port)
HDD check out
Check POST error and display them and ask for user
intervention
Ask password security (optional)
Write all CMOS values back to RAM and clear screen
Enable parity checker
Enable NMI
Enable cache before boot.
24 TDS5000B Read This First
Table 1: 039-0185-xx μATX POST codes, (cont.)
Displayed POST
Item no. Module
13
Reserved 79
Reserved 7A
Reserved 7B
Reserved
Boot Medium detection 7D Read and store boot partition head and cylinders values in
Final Init 7E
Special KBC patch
Boot Attempt 80
Boot FF
S4 POST Codes
14
Early Chipset Init
Cmos Check
Chipset default Prog 5C Program the chipset registers with CMO S values. Init onboard
Identify the CPU
Setup Interrupt Vector
Table
Test CMOS Interface
and Battery status
KBC final Init
Initialize Video Inter face
code Description
7C
7F
5A
5B
5D
5E
5F
60
61
Service Manual Information
Initialize any option ROMs present from C8000h to EFFFFh
NOTE. When FSCAN option is enabled, ROMs initialize from
C8000h to F7FFFh.
RAM
Final init for last micro details before boot
Set system speed for boot Setup NumLock status according to
Setup
Set low stack Boot via INT 19h
Early Initialized the super IO
Reset Video controller
Keyboard controller init
Test the Keyboard
Initialized the mouse
Check CMOS Circuitry and reset CMOS
clock generator
Check the CPU ID and init L1/L2 cache
Initialize first 120 interrupt vectors with SPURIOUS_INT_HDLR
and INT 00h-1Fh according to INT_TBL
First step initialize if single CPU Onboard
Re-init KB
If support HPM, HPM get initialized here.
Verifies CMOS is working correctly
detects bad battery. If failed, load CMOS defaults and load
into chipset
Final Initial KBC and setup BIOS data area
Read CMOS location 14h to find out type of video in use
Detect and Initialize Video Adapter
TDS5000B Read This First 25
Service Manual Information
Table 1: 039-0185-xx μATX POST codes, (cont.)
Displayed POST
Item no. Module
14
BootBlock POST Codes
15
Video memory test 62 Test video memory, write sign-on message to screen
Setup PS2 mouse and
test DM A
Test 8259 64
Init Boot Device 65
Install Boot Devices 66
Cache Init
PM init 68 PM initialization
PM final Init and issue
SMI
Full on FF
Base memory test 1
KB init
Install interrupt vectors 12
Init Video 0D Video initializing
Init FDD 41
Boot FF Load boot sector
code Description
63
67
69
5
Setup shadow RAM - Enable shadow according to Setup
Setup PS2 Mouse and reset KB Test DMA channel 0
Test 8259 channel 1 and mask IRQ 9
Detect if mouse is present, initialize mouse, install interrupt
vectors
Special treatment to PS2 Mouse port ACPI sub-system
initializing Initialize cache controller
Enter setup check and auto-configuration check up
Initialize floppy disk drive controller and any drives
Install FDD and setup BIOS data area
Parameters Initialize hard drive
Cache init and USB init
Final init Before resume
Clear base memory area (0000:0000–9000:ffffh)
Initialized KBC
Install int. vector (0-77) and initialized 00-1fh to their proper
place
Scan floppy and media capacity for onboard super IO
26 TDS5000B Read This First
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