HP8560E CRT pinout and component level schematics for A17 board

[DC1MC]

Hello everybody, I was wondering if anybody could help with a component level schematic for the CRT display driver for an HP8560E, I have the dim non-highlighted fonts issue and found some CRT rejuventator for a good price, but besides the pinout for J7 in the service manual I don't have many info about A17 CRT driver board.
The CRT will not stay too long afterwards, I will either sell the SA or replace the CRT with NewScope-6 Color LCD kit.
Any help with a data-sheet for the CRT ( also known as Panasonic 170XB31 ) and a component level document for the A17 board is most appreciated.

 Thanks,
 DC!MC
 

[james_s]

I don't know if this will help, but most small neck monochrome CRTs have this pinout.

1. G1
2. K
3. Heater 1
4. Heater 2
5. G1 (internally connected to pin 1)
6. G2
7. Focus

[DC1MC]

I don't know if this will help, but most small neck monochrome CRTs have this pinout.

1. G1
2. K
3. Heater 1
4. Heater 2
5. G1 (internally connected to pin 1)
6. G2
7. Focus

Thanks a lot, I'll give it a try and compare it with J7 where I have the pinout and signal names.

I still want to have the A17 board schematic and layout, in case there is a chance that some multiplexer or other part failed.

 Cheers,
 DC1MC

[drussell]

According to the set-up book for my Sencore CR-70, the 170XB31 is:

CRT No.  SKT  CRT TYPE  F1  F2  FIL  NEG BIAS  GUN  K  G1  G2
170XB31  UA   SCOPE     1   14  6.0  68v       B/W  7  2   5

So, that would be:

Filament                - 1 & 14 (6.0 volt, BTW. not the typical 6.3)
Cathode                 - 7
G1 (Control grid)       - 2
G2 (Screen / 1st accel) - 5

[drussell]

Also, I'm assuming you already have the service manual?  This is the most recent version I could find:

http://www.testunlimited.com/pdf/an/08560-90157.pdf

It doesn't have schematics for the A17 modules, but it does contain a bunch of troubleshooting info, adjustment info and block diagrams.

There is also a chart on page 657 that lists the "Component-Level Information Packets" for the various versions of A17, though good luck trying to actually find those documents... 

Board Assembly    Instrument Serial     Assembly       CLIP Part
                  Prefix                Part Number    Number

A17 CRT Driver    3213A through         08562-60165    08562-90187
(E-series)        3221A through 3432A   08562-60166    08562-90193
                  3442A through         08563-60077†   08563-90113
                  3741A and above       08563-60122    8563-90182*

[DC1MC]

According to the set-up book for my Sencore CR-70, the 170XB31 is:

CRT No.  SKT  CRT TYPE  F1  F2  FIL  NEG BIAS  GUN  K  G1  G2
170XB31  UA   SCOPE     1   14  6.0  68v       B/W  7  2   5

So, that would be:

Filament                - 1 & 14 (6.0 volt, BTW. not the typical 6.3)
Cathode                 - 7
G1 (Control grid)       - 2
G2 (Screen / 1st accel) - 5

 Thanks a lot @drussel for the pinout, now it's simple to verify it.
 Still looking for the documents that you've nicely listed, maybe some kind soul will chime in, I have the service manual, it helps but if I want to debug the driver board, then I need the schematics and component placing drawings for A17.

 Cheers,
 DC1MC

[drussell]

...
if I want to debug the driver board, then I need the schematics and component placing drawings for A17.

Indeed, that would make things easier, of course... 

Which version of the board do you have, just in case someone here DOES have access to the information packets?

[Chris56000]

Hi!

Just a thought – Artek have the CLIP for the 8562 – does that use the same. CRT assembly?

Chris Williams

[DC1MC]

Hi!

Just a thought – Artek have the CLIP for the 8562 – does that use the same. CRT assembly?

Chris Williams

Even the 8560 has something like 4 models of the board, I have to dig and see the exact revision of my board.

 Cheers,
 DC1MC

[SoundTech-LG]

Hope it helps. I'm interested in the LCD upgrade as well.

[charlyd]

Hi me too interrested in the LCD upgrade.

[DC1MC]

The problem with the "proper" LCD replacement kit, the NewScope-6, is that is bloody expensive, way more than the SA costed to buy, because it's not just a small adapter board and a LCD, but a pretty complex FPGA based assembly that does a lot converting the vector to raster and much more. Unfortunately they will probably just disappear, never to be found again.

All the other CRT to LCD replacements that I've seen they were sad hack-jobs or Pfuscherei as the locals calls it.


DC1MC

EDIT: Just for fun, here's the installation manual: http://simmconnlabscom.ipage.com/tech/NewScope-6_OM.pdf

[james_s]

When I saw this thread originally a couple years ago I read it as 8590, unfortunately the 8560 uses an electrostatic deflection tube similar to an analog scope CRT. I don't think there's a simpler way around it than the FPGA based adapters already available. Still the Newscope displays do strike me as being overpriced but then I suppose they are only sold in small quantities.

[DC1MC]

When I saw this thread originally a couple years ago I read it as 8590, unfortunately the 8560 uses an electrostatic deflection tube similar to an analog scope CRT. I don't think there's a simpler way around it than the FPGA based adapters already available. Still the Newscope displays do strike me as being overpriced but then I suppose they are only sold in small quantities.

The sad story of vector displays, one needs a rasterizer to save them, the cool part is that if you can connect it closer to the SA data source, one can do much more with it to display and eventually analyze it. The analogue part of these series is supperb.

 Cheers,
 DC1MC