468: Difference between revisions
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
{{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. | ||
| Line 29: | Line 41: | ||
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.
-
replaced ROM by 2764 with homemade 2364/2764 adapter
-
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
-
-
-
front
-
top and A16
-
Storage & Display A16
-
right Trigger A12
-
left V Preamp A11
-
bottom Interface Board A15
-
rear
-
Processor Board Set
-
Microprocessor Board A21
-
Memory Board A18
-
Timebase/Power Supply A22
-
Timebase Oscillator A22
