31 May
2016
31 May
'16
5:10 p.m.
From: Rod Smallwood
On switch on the console display comes up. Whilst it
performs the same
functions as the one in the manual it looks different.
Hmm. Does it seem like a DEC EPROM, or someone else's? The 11/84 (very
similar CPU) has a 'list' command which lists all the various EPROM's; does
you console emulator provide that?
What ever I do by way of setting up devices I
can't get it to talk to
the RX211.
Try stopping the console emulator and falling into ODT, and seeing if you can
see the RK211's registers from ODT. If not, does the 11/94 have that 'map'
command in the console emulator that the 11/84 does?
Another thing to try is, if you have some other UNIBUS device, plugging that
in, and seeing if the CPU can 'see' it.
Noel
1 Jun
1 Jun
3:04 a.m.
On 01/06/2016 01:10, Noel Chiappa wrote:
Thank you for your kind reply.
OK from the beginning.
1. The 11/94 is housed in deep box located in a 42inch cabinet. It
uses a KDJ11-E Quad proc. board.
2. Two buses (Q and Uni) are housed in the one box and are linked by
a special interface card.
3. Via a pair of flat cables the CPU is linked to an I/O panel at
the rear of the cabinet.
As well as six nine way D (rs232) and one 25 way D (rs232)
sockets there is a set of dip switches to
set up the console serial line parameters. There is also a two
digit power on self test progress display.
4. On switch on the self test progress display and the LED's on the
edge of the CPU card count down
from 77 to 04 (normal run mode)
5. Dialog mode is entered as set by the dip switches on the I/O
panel. Sometimes it gives the List Boot etc.
Hitting any of the choices just drops you into set up mode.
Setup does work and you can save the changes.
6. The main problems are that if you try to get it to boot it says no
controller to every device except DD
and that says no drive. Secondly I cant get it to go into ODT to
look at the registers.
Comments please
Rod Smallwood
1. The PROM appears to be genuine DEC. KDJ11-E Monitor V 1.06
2. I have seen it the mode where it offers List etc but only with VT100
From: Rod
Smallwood
On switch on the console display comes up. Whilst
it performs the same
functions as the one in the manual it looks different.
Hmm. Does it seem like a DEC EPROM, or someone else's? The 11/84 (very
similar CPU) has a 'list' command which lists all the various EPROM's; does
you console emulator provide that?
What ever I do by way of setting up devices I
can't get it to talk to
the RX211.
Try stopping the console emulator and falling into ODT, and seeing if you can
see the RK211's registers from ODT. If not, does the 11/94 have that 'map'
command in the console emulator that the 11/84 does?
Another thing to try is, if you have some other UNIBUS device, plugging that
in, and seeing if the CPU can 'see' it.
Noel
Hello Noel 
6:39 a.m.
On Jun 1, 2016, at 5:04 AM, Rod Smallwood
<rodsmallwood52 at btinternet.com> wrote:
OK from the beginning.
1. The 11/94 is housed in deep box located in a 42inch cabinet. It uses a KDJ11-E Quad
proc. board.
2. Two buses (Q and Uni) are housed in the one box and are linked by a special
interface card.
3. Via a pair of flat cables the CPU is linked to an I/O panel at the rear of the
cabinet.
As well as six nine way D (rs232) and one 25 way D (rs232) sockets there is a set
of dip switches to
set up the console serial line parameters. There is also a two digit power on self
test progress display.
4. On switch on the self test progress display and the LED's on the edge of the
CPU card count down
from 77 to 04 (normal run mode)
5. Dialog mode is entered as set by the dip switches on the I/O panel. Sometimes it
gives the List Boot etc.
Hitting any of the choices just drops you into set up mode. Setup does work and
you can save the changes.
6. The main problems are that if you try to get it to boot it says no controller to
every device except DD
and that says no drive. Secondly I cant get it to go into ODT to look at the
registers.
Comments please
Rod Smallwood
1. The PROM appears to be genuine DEC. KDJ11-E Monitor V 1.06
2. I have seen it the mode where it offers List etc but only with VT100
It would appear that deviced on the Unibus is inaccessible. DD is run off the KDJ11-E
serial ports.
Have you checked the Unibus supply voltages? KDJ11-T properly seated?
Is there a good battery for the TOY clock inserted?
Jerry
8:08 a.m.
On 01/06/2016 14:39, Jerry Weiss wrote:
TOY battery did need a change.
(got to go get one)
Would that have caused the problems?
Rod
On Jun 1, 2016, at 5:04 AM, Rod Smallwood
<rodsmallwood52 at btinternet.com> wrote:
OK from the beginning.
1. The 11/94 is housed in deep box located in a 42inch cabinet. It uses a KDJ11-E Quad
proc. board.
2. Two buses (Q and Uni) are housed in the one box and are linked by a special
interface card.
3. Via a pair of flat cables the CPU is linked to an I/O panel at the rear of the
cabinet.
As well as six nine way D (rs232) and one 25 way D (rs232) sockets there is a set
of dip switches to
set up the console serial line parameters. There is also a two digit power on self
test progress display.
4. On switch on the self test progress display and the LED's on the edge of the
CPU card count down
from 77 to 04 (normal run mode)
5. Dialog mode is entered as set by the dip switches on the I/O panel. Sometimes it
gives the List Boot etc.
Hitting any of the choices just drops you into set up mode. Setup does work and
you can save the changes.
6. The main problems are that if you try to get it to boot it says no controller to
every device except DD
and that says no drive. Secondly I cant get it to go into ODT to look at the
registers.
Comments please
Rod Smallwood
1. The PROM appears to be genuine DEC. KDJ11-E Monitor V 1.06
2. I have seen it the mode where it offers List etc but only with VT100
It would appear that deviced on the Unibus is inaccessible. DD is run off the
KDJ11-E serial ports.
Have you checked the Unibus supply voltages? KDJ11-T properly seated?
Is there a good battery for the TOY clock inserted?
9:24 a.m.
On Jun 1, 2016, at 10:08 AM, Rod Smallwood
<rodsmallwood52 at btinternet.com> wrote:
On 01/06/2016 14:39, Jerry Weiss wrote:
TOY battery did need a change.
(got to go get one)
Would that have caused the problems?
Its possible that a low or bad battery may be causing problems if the TOY chip is also was
used to store a the bits of the Setup or other internal status.
You said the settings are saved, but does this mean they are retained after power has been
removed? Best to put in a new battery and rule it out.
After looking at EK-PDP94-MG-001_Sep90.pdf documents that the self diagnostics should have
checked out the KTJ11?B and cpu throughly, but its not clear it actually checks anything
on the Unibus side, other than though the MAP command.
Also check out http://www.pdp-11.nl <http://www.pdp-11.nl/> for info on an 11/93
which is basically Qbus only use of the same CPU board.
On Jun 1, 2016, at 5:04 AM, Rod Smallwood
<rodsmallwood52 at btinternet.com> wrote:
OK from the beginning.
1. The 11/94 is housed in deep box located in a 42inch cabinet. It uses a KDJ11-E Quad
proc. board.
2. Two buses (Q and Uni) are housed in the one box and are linked by a special
interface card.
3. Via a pair of flat cables the CPU is linked to an I/O panel at the rear of the
cabinet.
As well as six nine way D (rs232) and one 25 way D (rs232) sockets there is a set
of dip switches to
set up the console serial line parameters. There is also a two digit power on self
test progress display.
4. On switch on the self test progress display and the LED's on the edge of the
CPU card count down
from 77 to 04 (normal run mode)
5. Dialog mode is entered as set by the dip switches on the I/O panel. Sometimes it
gives the List Boot etc.
Hitting any of the choices just drops you into set up mode. Setup does work and
you can save the changes.
6. The main problems are that if you try to get it to boot it says no controller to
every device except DD
and that says no drive. Secondly I cant get it to go into ODT to look at the
registers.
Comments please
Rod Smallwood
1. The PROM appears to be genuine DEC. KDJ11-E Monitor V 1.06
2. I have seen it the mode where it offers List etc but only with VT100
It would appear that deviced on the Unibus is inaccessible. DD is run off the
KDJ11-E serial ports.
Have you checked the Unibus supply voltages? KDJ11-T properly seated?
Is there a good battery for the TOY clock inserted?
9:33 a.m.
Jerry Weiss
jsw at ieee.org
On Jun 1, 2016, at 11:24 AM, Jerry Weiss <jsw at
ieee.org> wrote:
Its possible that a low or bad battery may be causing problems if the TOY chip is also
was used to store a the bits of the Setup or other internal status.
You said the settings are saved, but does this mean they are retained after power has
been removed? Best to put in a new battery and rule it out.
After further review EEprom is seperate chip for the setup retention.
10:28 a.m.
On 01/06/2016 17:24, Jerry Weiss wrote:
Hi
Henk has been helping. It would appear he has one of these beasts. See
recent post for comments.
I'm going to replace the battery with 2 x 1.5v whilst I get a 3V one
Rod
On Jun 1, 2016, at 10:08 AM, Rod Smallwood
<rodsmallwood52 at btinternet.com> wrote:
On 01/06/2016 14:39, Jerry Weiss wrote:
TOY battery did need a change.
(got to go get one)
Would that have caused the problems?
Its possible that a low or bad battery may be causing problems if the TOY chip is
also was used to store a the bits of the Setup or other internal status.
You said the settings are saved, but does this mean they are retained after power has
been removed? Best to put in a new battery and rule it out.
After looking at EK-PDP94-MG-001_Sep90.pdf documents that the self diagnostics should
have checked out the KTJ11?B and cpu throughly, but its not clear it actually checks
anything on the Unibus side, other than though the MAP command.
Also check out http://www.pdp-11.nl <http://www.pdp-11.nl/> for info on an 11/93
which is basically Qbus only use of the same CPU board.
On Jun 1,
2016, at 5:04 AM, Rod Smallwood <rodsmallwood52 at btinternet.com> wrote:
OK from the beginning.
1. The 11/94 is housed in deep box located in a 42inch cabinet. It uses a KDJ11-E Quad
proc. board.
2. Two buses (Q and Uni) are housed in the one box and are linked by a special
interface card.
3. Via a pair of flat cables the CPU is linked to an I/O panel at the rear of the
cabinet.
As well as six nine way D (rs232) and one 25 way D (rs232) sockets there is a set
of dip switches to
set up the console serial line parameters. There is also a two digit power on self
test progress display.
4. On switch on the self test progress display and the LED's on the edge of the
CPU card count down
from 77 to 04 (normal run mode)
5. Dialog mode is entered as set by the dip switches on the I/O panel. Sometimes it
gives the List Boot etc.
Hitting any of the choices just drops you into set up mode. Setup does work and
you can save the changes.
6. The main problems are that if you try to get it to boot it says no controller to
every device except DD
and that says no drive. Secondly I cant get it to go into ODT to look at the
registers.
Comments please
Rod Smallwood
1. The PROM appears to be genuine DEC. KDJ11-E Monitor V 1.06
2. I have seen it the mode where it offers List etc but only with VT100
It would appear that deviced on the Unibus is inaccessible. DD is run off the
KDJ11-E serial ports.
Have you checked the Unibus supply voltages? KDJ11-T properly seated?
Is there a good battery for the TOY clock inserted?
3 Jun
3 Jun
6:58 a.m.
On Jun 1, 2016, at 8:39 AM, Jerry Weiss <jsw at ieee.org> wrote
?..
Have you checked the Unibus supply voltages?
?
As a rule-out make sure the Unibus cards are getting power correctly. The Power Supply
sounds like is fine and powering the QBus side of things, but if the connections to the
Unibus backplane are wonky it might create symptom that the cards don?t exist. Note: I?m
not referring to the AC and DC LOW that Paul K mentioned earlier (which also are good
items to check), but just the raw power to the backplane.
7:33 a.m.
On 03/06/2016 14:58, Jerry Weiss wrote:
On Jun 1, 2016, at 8:39 AM, Jerry Weiss <jsw at
ieee.org> wrote
Measured at the MLM -14.8v and +4.98
?..
Have you checked the Unibus supply voltages?
?
As a rule-out make sure the Unibus cards are getting power correctly. The Power
Supply sounds like is fine and powering the QBus side of things, but if the connections to
the Unibus backplane are wonky it might create symptom that the cards don?t exist. Note:
I?m not referring to the AC and DC LOW that Paul K mentioned earlier (which also are good
items to check), but just the raw power to the backplane.
7:39 a.m.
On Jun 3, 2016, at 10:33 AM, Rod Smallwood
<rodsmallwood52 at btinternet.com> wrote:
On 03/06/2016 14:58, Jerry Weiss wrote:
That's probably close enough. But I remember from DEC that some Unibus cards
don't obey the power tolerance specs. The spec is +/- 5% which is common. But some,
the DMC11 is an example if I remember right, will not function reliably unless the voltage
at the connector is at least equal to the nominal value. In other words, they want -0% to
+5%. We had a machine that wouldn't work right, and the FS engineer went around with
a voltmeter tweaking all the supplies until they were set a hair above nominal. At that
point the machine was fine.
paul
On Jun 1, 2016, at 8:39 AM, Jerry Weiss <jsw
at ieee.org> wrote
Measured at the MLM -14.8v and +4.98 ?..
Have you checked the Unibus supply voltages?
?
As a rule-out make sure the Unibus cards are getting power correctly. The
Power Supply sounds like is fine and powering the QBus side of things, but if the
connections to the Unibus backplane are wonky it might create symptom that the cards don?t
exist. Note: I?m not referring to the AC and DC LOW that Paul K mentioned earlier
(which also are good items to check), but just the raw power to the backplane.
3124
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3126
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