Tek CSA7404/TDS7000 repair project (Upgraded memory/CPU)

[WORP3]

Looking at all the content inside this post, it would be helpful for some to also look at my new post about a TDS7404:

https://www.eevblog.com/forum/repair/boot-problem-on-tektronix-tds7404-scope/msg3374538/#msg3374538

After a lot of script problem, i'm back to having a booting TDS7404 without the correct S/N 

[charlyd]

 today i feeded my NVram with external +4.6v on pin5 and pin 17 to GND.

then i lifted the powercap and took out the old battery.
drilled two holes at the right place in the powercap cover and attached a CR2477 socket. i had to reverse it so it would fit next to the NLX bus connector on the Powerpc baord and after swapping the wiring arround, clicked it back in place on the NVram.
the battery socket en powercap cover look ed as if it is one pieces and the total reworked cap fits ok under the aluminium Intel board frame.

reconnected everything and ready to power-up...

ok ready for booting for the first time.
will the scope fully startup??
-windows xp booted fine.
-tekscope software started and ran to the end ( the 8 digit display nicely showed the flashing "-" )
-my error was gone
-my options were empty. (was this because of the corruption)

i am still curious how to check if the fact. service call. info is still in.

[WORP3]

Does anyone know if there is a way to trash the contents on the Dallas DS1245 chip on the PPC board?
This one has a PDIP, and I'd rather not remove the chip if it can be done from the console port.
I'm replacing this board in a TDS7104 and I need to get rid of the serial # and key.

Yes you can, just copy a empty file inside the NVRAM space.

[Jwalling]

Does anyone know if there is a way to trash the contents on the Dallas DS1245 chip on the PPC board?
This one has a PDIP, and I'd rather not remove the chip if it can be done from the console port.
I'm replacing this board in a TDS7104 and I need to get rid of the serial # and key.

Yes you can, just copy a empty file inside the NVRAM space.

How is that done?

[WORP3]

Does anyone know if there is a way to trash the contents on the Dallas DS1245 chip on the PPC board?
This one has a PDIP, and I'd rather not remove the chip if it can be done from the console port.
I'm replacing this board in a TDS7104 and I need to get rid of the serial # and key.

Yes you can, just copy a empty file inside the NVRAM space.

How is that done?

I have made some scripts that make this possible. best to look at my repair post, scripts are available over there.

https://www.eevblog.com/forum/repair/boot-problem-on-tektronix-tds7404-scope/msg3415738/

[bohrzqc]

A 24C16 will work fine.

Thanks，the error 521 disappeared now，I have made some simple test and the test results seems to be acceptable

You're welcome, that's great! Does it meet it's BW spec?

I dont have a 1GHz sinewave signal, but I believe the BW spec will no be a big issue, instead, maybe the dc voltage error is more obviously.

And now I find another problem ,each time I shutdown and then restart the scope,  the scope goback to default status(before I shutdown it,I open 4 channel display,and after reboot,only CH1 is displayed. And each time after it restart, ch2 baseline offset is quite big,I have to run spc eachtime to make it right.
Seems each time I restart the scope,it loads the factory default. I attach my bootfile here, does anyone know what's the reason?

Code: [Select]


UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU

romPost: MPC106  Walking-one passed.

romPost: MPC106 configuration passed.

romPost: First PCI access  passed.

romPost: PC87560 Walking-one passed.

romPost: PC87560 configuration passed.

romPost: DEC21554 configuration passed.


romPost: PERFORMING ROM CHECKSUM TEST...

romPost: ROM checksum passed.


romPost: PERFORMING DRAM CELL TEST...

romPost: Enabling data cache...
romPost: Data cache enabled.
romPost: Enabling instruction cache...
romPost: Instruction cache enabled.

romPost: DRAM Cell test passed.
romPost: Disabling data Cache...
romPost: Data cache disabled.
romPost: Disabling instruction cache...
romPost: Instruction cache disabled.

romPost: PERFORMING DRAM MARCH TEST WITH CACHE OFF...
romPost: Writing address to each *address...
romPost: Reading address from each *address...
romPost: DRAM march test passed...

romPost: PERFORMING DRAM MARCH TEST WITH CACHE ON...

romPost: Enabling data cache...
romPost: Data cache enabled.
romPost: Enabling instruction cache...
romPost: Instruction cache enabled.
romPost: Writing address to each *address...
romPost: Reading address from each *address...
romPost: DRAM march test passed...

romPost: PERFORMING DRAM WALKING-ONE  TEST...

romPost: DRAM Walking-one test passed.

romPost: PERFORMING NV-MEMORY WALKING-ONE  TEST...

romPost: NV-MEMORY Walking-one test passed.
romPost: Disabling data Cache...
romPost: Data cache disabled.
romPost: Disabling instruction cache...
romPost: Instruction cache disabled.
romPost: Enabling instruction cache...
romPost: Instruction cache enabled.


romPost: POWER-UP DIAGNOSTIC COMPLETE.

Hel










                            VxWorks System Boot


Copyright 1984-1996  Wind River Systems, Inc.





CPU: Tektronix HPP - PowerPC 740
Version: 5.3.1
BSP version: 1.0.3.0
Creation date: Jun 28 2000, 16:52:12




Press any key to stop auto-boot...
 0
auto-booting...


boot device          : sm
processor number     : 0
host name            : host
file name            : c:\vxBoot\vxWorks.st
inet on ethernet (e) : 192.168.0.2:ffffff00
inet on backplane (b): 192.168.0.0:ffffff00
host inet (h)        : 192.168.0.1
gateway inet (g)     : 192.168.0.2
user (u)             : anonymous
ftp password (pw)    : anonymous
flags (f)            : 0x1000
target name (tn)     : target
startup script (s)   : c:\vxBoot\topScript.hw
other (o)            : nvfs=0x1000

Initializing backplane net with anchor at 0x1e80000... done.
Backplane anchor at 0x1e80000... Attaching network interface sm0... done
done.
Attaching network PC1 dio device driver installed
interface lo0... done.
Attaching DIO client... done.
Loading c:\vxBoot\vxWorks.st...1773516
Starting at 0x200000...

Initializing backplane net with anchor at 0x16e0000... done.
Backplane anchor at 0x16e0000... Attaching network interface sm0... done
done.
PC1 dio device driver installed
Attaching network interface lo0... done.

Adding 6008 symbols for standalone.


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not regis
ter service: RPC: U nable to send; errn]]]]]     ]  ]]]]     ]]]]]      ]]]]]]]]
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ble to register
(WINDVIEW, WINDVIEW _VERS_CURRENT, udp)]]]]]]]    ]]]]]  ]    ]]]]]]  ]    ]]]
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 ]]]]]]]]]]]]]]]]]]]]]]]]]]]]]]
 ]]]]]]]]]]]]]]]]]]]]]]]]]]]]]       Development System
 ]]]]]]]]]]]]]]]]]]]]]]]]]]]]
 ]]]]]]]]]]]]]]]]]]]]]]]]]]]       VxWorks version 5.3.1
 ]]]]]]]]]]]]]]]]]]]]]]]]]]       KERNEL: WIND version 2.5
 ]]]]]]]]]]]]]]]]]]]]]]]]]       Copyright Wind River Systems, Inc., 1984-1997

                               CPU: Tektronix HPP - PowerPC 740.  Processor #0.
                              Memory Size: 0x2000000.  BSP version 1.0.8.1 .
                             WDB: Ready.

usrNvFsInit: NAME=/nvram BASE=0xfd0ff100 BPB=512 BPT=8 NB=8 BO=0
nvfs: STATUS: Mounting existing NVRAM file system
KERNEL: THERMAL CONTROL INITIATED
Executing startup script c:\vxBoot\topScript.hw ...
dbFsIoctl: invalid code 3
    ################### topScript starts ###############################




     cd "dbfs:c:/vxBoot"
value = 0 = 0x0


    ld < TekScope.o
value = 23737024 = 0x16a32c0
    ld < TekScopeSM.o
value = 23705952 = 0x169b960

    pDbDev = ramDevCreate(0, 512, 1152, 1152, 0)
new symbol "pDbDev" added to symbol table.
pDbDev = 0x169bc00: value = 23706656 = 0x169bc20 = pDbDev + 0x20
    pDBfs  = dosFsMkfs("/db", pDbDev)
new symbol "pDBfs" added to symbol table.
pDBfs = 0x169b7e0: value = 23706400 = 0x169bb20 = pDBfs + 0x340
    copy ("TekScope.DBF", "/db/TekScope.DBF")
value = 0 = 0x0

    overrideFPdefaults()
value = 0 = 0x0

    measurePPCtimebase
value = 0 = 0x0


    registerMemPartitionSizes ( 0x00000000 )
value = 0 = 0x0

    semInitForQueueCheckLogMsg
value = 23705408 = 0x169b740

    initSysWaiter()
value = 0 = 0x0




    raxInit
value = 0 = 0x0
    paiInit
done
value = 17639480 = 0x10d2838 = PaiBaseRegisterTable + 0x948


    verifyAcqBoardID
value = 0 = 0x0






     updateAcqProcFirmware("dbfs:c:/vxBoot/acqProc.hex")
0x155fde0 (tShell): AVR FLASH contents match file dbfs:c:/vxBoot/acqProc.hex - n
o programming needed.
value = 1 = 0x1
     cd "pc:"
value = 0 = 0x0

    raxInitializeDevices
0x155fde0 (tShell): >> Setting PLL to 1.25e+09 Hz.
done
0x155fde0 (tShell): (Re)starting Acq Processor
value = 22412208 = 0x155fbb0

    excHookAdd(stopStressForException)
value = 17426908 = 0x109e9dc = stopStressForException


    dsyInit
value = 21784264 = 0x14c66c8
    dsyWPApplyNextRegs
value = 17629356 = 0x10d00ac = DsyRegisterTable + 0xab0









    # remove '#' from next line to set powerup scope state to factory default:
    # NvramClearDb = 1

    nvram_initFileSys
0x155fde0 (tShell): >> Kernel version 1.0.8.1  does not match Boot ROM version 1
.0.3.0
value = -49409789 = 0xfd0e1103 = pDbDev + 0xfba45503

    TmgrInit("/db")
0x155fde0 (tShell): NO BACKUP SERIAL NUMBER FOUND, RESTORING VALUE FROM DISK...
0x155fde0 (tShell): NO BACKUP SERIAL NUMBER FOUND, RESTORING VALUE FROM DISK...
value = 0 = 0x0
    PhxProxyInit
value = 21018368 = 0x140b700
    rtlInit
value = 0 = 0x0

    sysExtMemAddToPool memSysPartId,0x02000000,0x06000000
value = 0 = 0x0

    hwAccount_init
0x155fde0 (tShell): >> Setting PLL to 1.25e+09 Hz.
sysEnetAddrGet: d5:7f:95:df:75:53
value = 7 = 0x7

    GpibInit
value = 133284512 = 0x7f1c2a0

    wfmMemInit(1)
value = 47300320 = 0x2d1bee0

    vertInstall
value = 47293284 = 0x2d1a364

    calConStatus = cc_init(2)
0x155fde0 (tShell): Reading 280 bytes of service cal data from EEPROM[0] into 0x
2d1a240
0x155fde0 (tShell): nvMem_read succeeded
0x155fde0 (tShell): Reading 66 bytes of service cal data from EEPROM[280] into 0
x2d1a300
0x155fde0 (tShell): nvMem_read succeeded
0x155fde0 (tShell): extd chksum failed, stored = 0xffffffff calc = 0x28d5a0ee
0x155fde0 (tShell): cc_init: extended bank17 chksum failed, NOT reset to factory

0x155fde0 (tShell): cc_restoreBank: can't open file C:/vxBoot/calCons/0
0x155fde0 (tShell): cc_init: bank 0 chksum failed, NOT reset to factory
0x155fde0 (tShell): cc_restoreBank: can't open file C:/vxBoot/calCons/1
0x155fde0 (tShell): cc_init: bank 1 chksum failed, NOT reset to factory
0x155fde0 (tShell): cc_restoreBank: can't open file C:/vxBoot/calCons/2
0x155fde0 (tShellcalConStatus): cc_init: bank  = 2 chksum failed, NOT reset to f
actory
0x0x155fde01321eec (tShell): cc_restoreBank: can't open file : value C:/vxBoot/c
alCons/= 3164335
0x155fde0 (tShell = 0x): cc_init: bank 281ef3 chksum failed, NOT reset to factor
y

0x155fde0 (
tShell): cc_restoreBank: can't open file     updateTrigCaC:/vxBoot/calCons/l5

0x155fde0 (tShell): value = cc_init: bank 05 chksum failed, NOT reset to factory

 = 0x0x155fde0 (tShell0): cc_restoreBank: can't open file
C:/vxBoot/calCons/6

0x155fde0 (tShell):     MathMeasCreatcc_init: bank eTheMa6thandMeasurementLib ch
ksum failed, NOT reset to factory
rar0xies155fde0 (tShell):
cc_restoreBank: can't open file valuC:/vxBoot/calCons/e 7=
0x155fde0 (tShell47120704): cc_init: bank  = 0x7 chksum failed, NOT reset to fac
tory
2cf01400x155fde0
 (tShell): cc_restoreBank: can't open file     initAcqC:/vxBoot/calCons/Ma8pper
0x155fde0 (tShell
): cc_init: bank value = 8 chksum failed, NOT reset to factory
00x155fde0 (tShell = 0x): cc_restoreBank: can't open file 0C:/vxBoot/calCons/
15
0x155fde0 (tShell    trigMapInit):
cc_init: bank 15 chksum failed, NOT reset to factory
val0xue = 155fde0 (tShell0): cc_chkLimits: CC_VERT_ATTENIMBAL_100X_CH2 = 0x was
; reset to factory
00x155fde0
 (tShell): cc_chkLimits:     dsyMCC_VERT_ATTENIMBAL_1X_CH2apInit was ; reset to
factory

0x155fde0value =  (tShell0): initAcqMapper: Enter
 = 0x0
    mathMapperInit
value = 0 = 0x0
    utilMapInit
value = 47118048 = 0x2cef6e0

    TmgrHookup
value = 0 = 0x0
    PhxProxyHookup
value = 0 = 0x0
    hookupAcqMapper
value = 20033680 = 0x131b090 = AcqMapperRtlDataList
    MathMeasMapHookup
value = 22412040 = 0x155fb08
    dsyMapHookup
value = 22412144 = 0x155fb70
    utilMapHookup
value = 22412176 = 0x155fb90

    rtlHookup
value = 0 = 0x0
    horizMapHookup
value = 22412136 = 0x155fb68
    fastFrameMapHookup
value = 22412160 = 0x155fb80
    trigMapHookup
value = 22412168 = 0x155fb88
    vertMapHookup
value = 22412160 = 0x155fb80
    spcMapHookup
value = 22412160 = 0x155fb80
    autosetMapHookup
value = 22412200 = 0x155fba8
    timeSyncMapHookup
value = 22412192 = 0x155fba0
    auxTrigMapHookup
value = 22412176 = 0x155fb90
    dpoMapHookup
value = 22412168 = 0x155fb88


    TmgrStartup
value = 46269840 = 0x2c20590
    PhxProxyStartup
value = 46219296 = 0x2c14020
    taskDelay(2)
value = 0 = 0x0

    gpibHwInitC
value = 0 = 0x0
    gpibTaskSpawn
value = 45990560 = 0x2bdc2a0

    gpibIoInit "/dbios/DBIO005","/dbios/DBIO006"
value = 45502752 = 0x2b65120

    enablePowerupDiags = 0
enablePowerupDiags = 0x12f1330: value = 0 = 0x0

    runPowerupDiags
done
dipSwitch = 0x0, enablePowerupDiags = 0, puMode=0
CalDiagPowerUpDiagsEnabled = 0
!! SKIPPING POWERUP DIAGNOSTICS !!
0x2b188e0 (digHFTask): >> Setting PLL to 1.25e+09 Hz.
0x2b188e0 (digHFTask): >> Setting PLL to 1.25e+09 Hz.
0x2b188e0 (digHFTask): >> Setting PLL to 1.25e+09 Hz.
value = 17649712 = 0x10d5030 = SoftSwitchesRegisterTable + 0x48

    rtlStartup
value = 0 = 0x0

    tsComp
value = 0 = 0x0

    ################### topScript ends ###############################

Done executing startup script c:\vxBoot\topScript.hw
KERNEL:  RUNNING TIME SLICED AT 10 TICKS PER SLICE!
->

Hello. My TDS 7104 presents the same 521 error. I bought some used X24165 chips, and try to replace it.
My English is terrible. Hope you can understand me.

[charlyd]

Hi i would be carefull with pulling these eeproms. Inside are your factory cals stored and your scope needs tobe re-calibrated for sure. nowadays no FAS is available anymore and equiptment like a fluke 9500B needs to be part of your workbench or you will get yourself into an extra problems. $$$

is the rest of your scope ok bohrzqc . post log here.

[bohrzqc]

Hi i would carefull with pulling these eeproms. Inside are your factory cals stored and your scope needs tobe re-calibrated for sure. nowadays no FAS is available anymore and equiptment like a fluke 9500B needs to be part of your workbench or you will get yourself into an extra problems. $$$

is the rest of your scope ok bohrzqc . post log here.

After replaced the X24165 chip, the 521 error still exists. I wonder whether only replacing the X24165 chip is OK or some cal data should be written to the chip. Jay upload the cal data of his 7104. So the cal data should be written to the chip?
I bought some AT24C16B chips, and plan to replace tomorrow.
Maybe I solved the baseline offset is reset to the factory default. First delete the calConStatus = cc_init(2) in the boot file, save the file. Restart the scope. Add the calConStatus = cc_init(2) to the original place again, and save the file, restart the scope.
However, this method is useless for another 7104. Maybe this due to the X24165 chip. Not sure.

[Jwalling]

After replaced the X24165 chip, the 521 error still exists. I wonder whether only replacing the X24165 chip is OK or some cal data should be written to the chip. Jay upload the cal data of his 7104. So the cal data should be written to the chip?

Yes. If you use my cal data, the error should go away, but won't be valid for obvious reasons.

[charlyd]

Hi bohrzqc:  is this what you did?   and what did it bring you?

https://www.eevblog.com/forum/testgear/tek-csa7404-repair-project/msg2764508/#msg2764508

[bohrzqc]

Hi bohrzqc:  is this what you did?   and what did it bring you?

https://www.eevblog.com/forum/testgear/tek-csa7404-repair-project/msg2764508/#msg2764508

No.
calConStatus = cc_init(1) cannot settle the problem of the offset of the baseline, only can reset the cal data to factory values. I think resetting the factory cal values is useless. My method is not always effective. Maybe we should wait for expert Jay or TiN to settle the problem.

[charlyd]

hi yes that is why i asked, because what did you do exactly in post #607  i am trying to figure out why you did those things.

[ludow]

Hi, thank you a lot for this forum.
I recently got a tds7154 from someone who find it.
I had to change the bios battery, find an hdd, install windows 2000 and the drivers. 
Now, Tekscope launch but I can't see any trace, so I tried with windows XP and got the same problem. It takes measurement (we can see the range adapt with the input while clicking on autoset) but the trace are not displayed.

Have anyone an idea of what it could be?

[Jwalling]

Hi, thank you a lot for this forum.
I recently got a tds7154 from someone who find it.
I had to change the bios battery, find an hdd, install windows 2000 and the drivers. 
Now, Tekscope launch but I can't see any trace, so I tried with windows XP and got the same problem. It takes measurement (we can see the range adapt with the input while clicking on autoset) but the trace are not displayed.

Have anyone an idea of what it could be?

Looks like the video driver. Make sure it is an Asiliant driver.

[charlyd]

@ludow, don t run the unit opened without a big fan blowing over the ACQ and or PSU. Normally with case closed the airflow is directed over the boards. with open case board run too hot.

[ludow]

yes thanks that was exactly this 

[Jwalling]

yes thanks that was exactly this 

The driver, you mean?

[ludow]

yes exactly, thank you