468: Difference between revisions
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{{Oscilloscope Sidebar |manufacturer=Tektronix | | {{Oscilloscope Sidebar | ||
series=400-series scopes | | |manufacturer=Tektronix | ||
model=468 | | |series=400-series scopes | ||
summary=10/100 MHz Digital Storage Scope | | |model=468 | ||
image=468-am.jpg | | |summary=10/100 MHz Digital Storage Scope | ||
caption=Tek 468 | | |image=468-am.jpg | ||
introduced=1980 | | |caption=Tek 468 | ||
discontinued=1985 | | |introduced=1980 | ||
manuals= | |discontinued=1985 | ||
* [http://www.ko4bb.com/getsimple/index.php?id=manuals&dir=Tektronix/Tektronix_-_468_Digital_Storage_Oscilloscope Tektronix 468 manuals] | |manuals= | ||
* [[Media:070-2906-01.pdf|Tektronix 468 Operators Manual]] | |||
* [[Media:070-3515-00.pdf|Tektronix 468 Service Manual Vol.1]] | |||
* [[Media:070-3516-00.pdf|Tektronix 468 Service Manual Vol.2]] | |||
* [http://www.ko4bb.com/getsimple/index.php?id=manuals&dir=Tektronix/Tektronix_-_468_Digital_Storage_Oscilloscope Tektronix 468 manuals] @ KO4BB | |||
* [http://www.hakanh.com/dl/docs/kitinstructions/040-0999-02.pdf GPIB Option Installation] | |||
'''ROM images''' | |||
* [[Media:160-0459-01.bin |160-0459-01 (U565)]] | |||
* [[Media:160-0759-01.bin |160-0759-01 (U575)]] | |||
* [[Media:067-0989-00.bin |067-0989-00 Service ROM]] | |||
}} | }} | ||
The '''Tektronix 468''' is a digital/analog scope, essentially a [[465B]] with an added 25 MS/s 8 bit digitizer. | The '''Tektronix 468''' is a digital/analog scope, essentially a [[465B]] with an added 25 MS/s 8 bit digitizer. | ||
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468_fail_rom.jpg | Result of bad ROM by verification-check. | 468_fail_rom.jpg | Result of bad ROM by verification-check. | ||
</gallery> | </gallery> | ||
A16 STORAGE-DISPLAY Circuit Board Replacement ERROR in SERVICE Manual Schematic and Parts list (See Repairs) | A16 STORAGE-DISPLAY Circuit Board Replacement ERROR in SERVICE Manual Schematic and Parts list (See Repairs) |
Revision as of 02:26, 2 January 2022
The Tektronix 468 is a digital/analog scope, essentially a 465B with an added 25 MS/s 8 bit digitizer.
Specifications
- Digital mode: Sampling rate 25 MS/s, bandwidth 10 MHz (sine)/2.5 MHz (pulse), resolution 8 bit
- Analog mode: 100 MHz bandwidth
- GPIB Option 02 (A17 board)
- TV Sync Separator Option 05 (A29 board)
- Analog X-Y/Plotter Output Option 11 (A27 board)
- please add more ...
Repair issues
Many 468s used Mostek MKB36000 masked ROMs that can suffer from "ROM rot". It may be necessary to replace the 160-0459-01 and 160-0759-01 ROMs with 2764 EPROMs through a 2364/2764 adapter. Another option might be using the MCM68766 EPROM.
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replaced ROM by 2764 with homemade 2364/2764 adapter
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Result of bad ROM by verification-check.
A16 STORAGE-DISPLAY Circuit Board Replacement ERROR in SERVICE Manual Schematic and Parts list (See Repairs)
Links
Pictures
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front
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top and A16
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Storage & Display A16
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right Trigger A12
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left V Preamp A11
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bottom Interface Board A15
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rear
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Processor Board Set
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Microprocessor Board A21
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Memory Board A18
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Timebase/Power Supply A22
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Timebase Oscillator A22