Electronics > Repair
Tektronix DPO7104 repairs
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iAleks:
Your acqusition board looks like this? right?
My board log

--- Code: ---------- VERSION INFO -------
"5.3.5 Build 22"
  RTL version
     Expected = "5.3.5.22"
     Actual   = "5.3.5.22"
  UI version
     Expected = "5.3.5.22"
     Actual   = "Unknown - UI not Started"
----------------------------

================================================================
SYSTEM INFORMATION:
    Stingray
    Model: DPO7104
    Serial number: C010424
    Scope.exe Version: 5.3.5 Build 22;     RELEASE
    Diagnostics:
        Powerup mode: USER
        Powerups Count: 74
    Timed Demo Info: Timed Demo, 0 days left.
    Options:
        ASM: Advanced Search & Mark
        LT: Limit Test
        App 75 Avail
         not installed.
       
    Hardware Configuration:
        CPU Board Id: 1, 1
        Windows Driver version: 1021D
        MIA Image version: 10011156
        ACL4 Image version: AC140707
        Number of channels: 4
        Acq board RevA
        DEMUXES PRESENT: 4 DEMUXES IN USE: 4
        ATODS PRESENT: 2 ATODS IN USE: 2
        Track and Holds: 0
        ACQ MEM: 268435456
        ACQ BW: 1000
        ACQ SAMPLE RATE: 5000
        DEMUX ASIC REV: 0
        FTL PRESENT: 0
            Max Recovd Clk:      1.25e+009
            CalFilter support:   0
            BWE Support:         1
            CF StandardBits:     0x00000000
            BWE Bandwidth:       1.000e+009
            BWE SampleRate:      5.000e+009
            IsVista:             0
================================================================
    system configuration flags
     PREAMP HFD144
     PREAMP M668
     50 ohm termination
     1 meg ohm termination
     Attenuator 10x
     Advanced Search
     Limit Test
     Trigger Video

--- End code ---

        Track and Holds: 0
pasta2018:
yes.My acquisition board is the same with this one
iAleks:
Im not shure were problem, check this resistors. Then i prepare HDD image for recovery.
And i dont like this string from your console file
Fri Dec 20 23:06:08 2024: DIAGNOSTIC EXECUTION starting ... Pu=2 T=-127C
Maybe this couse board have somewhere bad configuration, this explains the negative temperature value and the attempt to U200.

Can you take good photo your board? Two side of pcb.
coromonadalix:
on some acq of other models  you have to rewrite some eeprom,  i forgetting for what code ...    but it cleared some errors, you have to go  in the big tds7k thread



here's some others,  for the given scripts i need to restart a computer to get them,  the eeprom rewrite .....   not sure all related,  but  yes  the other thread answer  seems to point to something who get very hot


https://www.eevblog.com/forum/testgear/tektronix-tds6000b7000b-series-nvram-dump-script/

https://www.eevblog.com/forum/testgear/tektronix-tds8000-backup-calibration-parameters/msg5755891/#msg5755891
pasta2018:
After I downloaded the latest firmware from the Tektronix official website and reinstalled it, the oscilloscope would have a blue screen when I booted up TekScope.
The backup dpo7054 system can be started normally with a backup and will not be blue screen.
Pay attention to my console log, there is also an H10-A error that causes acquisition 361 etc. When I was measuring, I found that the vertical position of channel 2 can be adjusted, while the vertical position of other channels is not adjustable, and it will closely follow the baseline of channel 2.
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