Electronics > Repair
Repair and upgrade DPO7104 -->DPO7354
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iAleks:
Hi!
I got DPO7104 in very bad condition, looks like this device play footboall, as a result most bga get off from pcb.. with pcb traces off..
But!
I repair traces on PCB and find donor PCB for replace broken BGA IC, in this time device work fine! Like DPO7104 with many options. And it would seem that everything is fine.

--- Code: ---================================================================
SYSTEM INFORMATION:
    Stingray
    Model: DPO7104
    Serial number: B010496
    Scope.exe Version: 5.3.5 Build 22;     RELEASE
    Diagnostics:
        Powerup mode: USER
        Powerups Count: 88
    Timed Demo Info: Timed Demo, 0 days left.
    Options:
        5RL
        2SR
        MTM
        LSA1
        PTM1
        ?p?
        ASM
        LT
        DDRA
        SR-EMBD
        App 48
        App 49
        App 50
        App 51
        App 52
        App 53
        App 54
        App 55
        App 56
        App 57
        App 58
        App 59
        App 60
        App 61
        App 62
        App 63
        App 64
        App 65
        App 66
        App 67
        App 68
        App 69
        App 70
        App 71
        App 72
        App 73
    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 RevD/512
        DEMUXES PRESENT: 8 DEMUXES IN USE: 8
        ATODS PRESENT: 4 ATODS IN USE: 4
        Track and Holds: 1
        ACQ MEM: 536870912
        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:      1.000e+010
            IsVista:             0
================================================================
    system configuration flags
     PREAMP HFD144
     PREAMP M668
     50 ohm termination
     1 meg ohm termination
     Attenuator 10x
     Trigger Serial
     Trigger CAN
     Trigger Pattern Lock
     Advanced Search
     Limit Test
     DDR Search
     Embeded Analysis
     Trigger Video
     Comm Option Enabled
digPhaseCal succeeded

--- End code ---
But....
I hear whisper, from this device, -You underestimate my POWER!! After hear this i wont give take full power to this device!! 1Ghz... For this monster, is not enough!
I found how to convince this device he is 3.5Ghz model!!!
In this time im take after start Tekscope.exe he is DPO7354!

--- Code: ---================================================================
SYSTEM INFORMATION:
    Stingray
    Model: DPO7354
    Serial number: B010496
    Scope.exe Version: 5.3.5 Build 22;     RELEASE
    Diagnostics:
        Powerup mode: USER
        Powerups Count: 5
    Timed Demo Info: Timed Demo, 0 days left.
    Options:
        10RL
        MTM
        Res
        Res
        LSA1
        PTM1
        ?p?
        ASM
        LT
        DDRA
        SR-EMBD
        ERRDET
        STU
        MSOE
        SR-COMP
        App 48
        App 49
        App 50
        App 51
        App 52
        App 53
        App 54
        App 55
        App 56
        App 57
        App 58
        App 59
        App 60
        App 61
        App 62
        App 63
        App 64
        App 65
        App 66
        App 67
        App 68
        App 69
       
    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 RevD/512
        DEMUXES PRESENT: 8 DEMUXES IN USE: 8
        ATODS PRESENT: 4 ATODS IN USE: 4
        Track and Holds: 1
        ACQ MEM: 536870912
        ACQ BW: 2500
        ACQ SAMPLE RATE: 5000
        DEMUX ASIC REV: 0
        FTL PRESENT: 0
            Max Recovd Clk:      1.25e+009
            CalFilter support:   1
            BWE Support:         1
            CF StandardBits:     0x00000F00
            BWE Bandwidth:       3.500e+009
            BWE SampleRate:      1.000e+010
            IsVista:             0
================================================================
    system configuration flags
     PREAMP HFD144
     PREAMP M668
     50 ohm termination
     1 meg ohm termination
     Attenuator 10x
     CLock Recovery
     Trigger Serial
     Trigger Serial Ultra
     Trigger CAN
     Trigger Pattern Lock
     Advanced Search
     Limit Test
     DDR Search
     Embeded Analysis
     Trigger Video
     Comm Option Enabled
     Serial Error Detect
--- End code ---
But...
Popup message like "NVRAM file cant read for this device, dude go to tektronix service"
I wont write all consuption info and litlte photo about this DPO7k scope and how convince him that he is DPO7354!


But....
First i wont make sure everything is okay. For this i need:
Can someone who have access to this model DPO7354 (and 7254) copy here folders
C:\TekScope\calibration
and
C:\Program Files\Tektronix\TekScope\SYSTEM
I have no idea were NVRAM "file" in this scope..
I started this repair in June, this most hard reapir i doo, because of many BGA pad repair, tons pad BGA repair.
iAleks:
Reserve for next series.
coromonadalix:
check in the tds7k series  thread, many have contributed

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

in some models  when nvram dies, you loose  configs and tek scope wont start
sprit:

Hi guys,

I think im just fu my tds7254b.

After an hour installing the TDS software but screen still stuck as this img, im pretty sure that NVRAM's battery is dead. So i tried to connect it to my computer using FT4232 serial.
Every thing seem good but when i power on the scope, the teraterm display an inspected symbol like that. My serial config:
 9600
8
N
1

I tried different baudrates but no progress. I don't know what I did wrong. Now this scope is stuck at the application launch screen. Front panel is not working, bit indicator on the bottom of mainboard is stuck at "L" state. I don't know what to do next About the VM6000, yesterday I tried to flash the file squadchanel gave me, but it kept getting BOD, so restoring it with the archive file is not feasible,I'm looking for some thread or tutorial that can turn my VM6K into an oscilloscope. Anyway, thanks for your kind support.
Sincerely, Feng
coromonadalix:
1st  where are you connected ?   you have a 10 pins idc port  on the power pc board not far from  the pc and scope interface   j790



this thread should help
https://www.eevblog.com/forum/testgear/tek-csa7404-repair-project/


and don't multiple thread,   you had already an ongoing one  ....
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