>>> 'tylans' problem from bob -- Fri Jan 27 07:21:29 1989 <<<

Bank one is down for unknown reasons. The tubes are cold. The system will
be looked into early this AM and then recal'd.

Users should report a general tylan problem such as the loss of a bank
using the wand under the equipment alias "tylans".

>>> 'tylans' problem from hoagland -- Wed Feb  1 17:04:46 1989 <<<

The power failure today had a terrible impact on the Tylan furnaces.
Various problems will be detailed in the near future; banks 2,3, and
4 are currently running various calibration recipes and those tubes
should all be up sometime tomorrow before 5 PM- updates will be posted
as available.  Bank 1 suffered the loss of it's slave power supply,
which is currently being repaired.  Hopefully this power supply will
be working again sometime tomorrow so tubes 1-4 could be up tomorrow
night or sometime Friday.

>>> 'tylans' problem from hoagland -- Thu Feb  2 17:01:09 1989 <<<

Bank1 is still down.  Special diodes are needed to repair the switching
power supply running this bank.  These parts have been ordered and will be
here Monday.  In the meantime a backup supply may be used to get the bank
up over the weekend- a decision will be made on Friday and the outcome
posted in the AM.

>>> 'tylans' problem from hoagland -- Fri Feb  3 10:10:22 1989 <<<

Bank1 should be up by noon today.  If all goes well with the calibration
recipes and/or maintenance runs these tubes, at least 1-3, will be
available for use tomorrow.  At some point in the future the bank will
have to be dropped again to effect a permanent repair of the power
supply, but that will be posted well in advance to minimize user impact.
Tube4 will be up again ASAP, probably early next week.

>>> 'tylans' problem from evan -- Fri Feb  3 17:42:25 1989 <<<

problem: bank one down
cause: power failure results
       The slave boards' power supply failed.  I wired up an umbilical cord
to the triple bench power supply. Since it only has the current capacity
to power 2 tubes' cards, I powered up tube 1 and 2.  After some fussing,
all the cards for 1 and 2 were powered and showing normal behavior.  The
current drain on the power supply was as expected.  I loaded SCAL into both
tubes sucessfully.  Unfortunatly, I could not get the tubes to fire.
As a result, bank one will be down for the weekend.
From hoagland Mon Feb  6 09:57:23 1989
Received: by argon (5.57/1.16)
	id AA21223; Mon, 6 Feb 89 09:57:08 PST
Date: Mon, 6 Feb 89 09:57:08 PST
From: hoagland (Steve  Hoagland)
Message-Id: <8902061757.AA21223@argon>
To: tylans
Subject: bank1
Cc: bob, evan, hoagland
Status: R

ELPAC technical support, of the company which made the failed power
supply in bank1, informed me our supplie(s) will not work unless all
voltage outputs are operating normally.  Disconnecting any one output
detunes the output coil sufficiently to prevent operation of any output.
Special fast recovery diodes were special ordered last week and should
be here today.  With luck, bank1 will be up this afternoon to run 
calibration recipes and available for use tomorrow.


`v


>>> 'tylans' problem from evan -- Mon Feb  6 16:57:05 1989 <<<

Steve has repaired the power supply.  I will reinstall it on Tues. morning.
I am still trying to discover why the heaters will not fire.  I am working
from both directions and hope to reach the problem soon. However I can't
say when the bank will be up.

>>> 'tylans' problem from evan -- Tue Feb  7 14:25:14 1989 <<<

problem: bank 1 down
cause: power failure
solution: The slave power supply was repaired by Steve.  It was installed
and the battery back-up trims were adjusted.  The tubes all fired up and
SCAL was loaded.  Tom is running MAINT1 on tylan1, SCAL on tylan3 and tylan4,
and tylan2 is idling until other SCALS are complete (to prevent all tubes from
reaching high temp cal at the same time and creating excess heat in the back).

bank 1 is up

>>> 'tylans' problem from tom -- Tue Feb 21 15:09:15 1989 <<<

Whole bank #1 is dead.

>>> 'tylans' problem from hoagland -- Tue Feb 21 16:44:06 1989 <<<

problem:  Bank1 dead.  AC power is ON but slave DC supply is
          shut-down.  All outputs are dead.

cause:  Unknown.  Possibly drilling to install wafer holders
        may have briefly shorted wires behind back panel of bank.

solution:  Switch supply off and back on.  Without loss of AC power
           backup board cannot halt slave CPU's to save memory-
           tubes will need recalibration

>>> 'tylans' problem from marilyn -- Fri Mar 31 09:56:09 1989 <<<

Problem: Quick-lock handle at 1st tylan bank (1-4) eroded beyond
         repair.
Solution: Replaced handle with a new one.

>>> 'tylans' problem from bob -- Tue Apr 18 15:48:28 1989 <<<

tylan9 is down due to a clogged exhaust filter. It will be serviced
in the AM.
tylan9 is down until tomorow morning.
bob

>>> 'tylans' problem from parrish -- Wed Apr 19 09:37:55 1989 <<<

problem:    exhaust system clogged

cause:      depositions from all the tubes eventually clogged the system

solution:   removed the exhaust system, cleaned and replaced. system is back
            together and can be used. 

>>> 'tylans' problem from tang -- Fri May 19 21:05:27 1989 <<<

The tylans pump failure alarm went off at 9:05pm Friday night
5/19/89. Tylan11 pressure was at atmosphere. It's supposed to
be in PLYSTNBY. I'll atempt to reload PLYSTNBY again.

>>> 'tylans' problem from tang -- Fri May 19 21:12:44 1989 <<<

tylan11 failed again when attempting to run PLYSTNBY. I
believe the pump failed. I silenced the alarm. 

>>> 'tylans' problem from evan -- Fri May 26 11:58:11 1989 <<<

Forming gas cylinder will be changed at 13:00:00 today.  Do not start
programs using forming gas until I have finished. Let me know if
there is a problem.
H2/N2 cylinder change.

>>> 'tylans' problem from evan -- Fri May 26 13:28:26 1989 <<<

H2/N2 cylinder changed.
tylans using forming gas are ready to use.

>>> 'tylans' problem from hoagland -- Thu Jun  8 16:52:52 1989 <<<

A pressure gauge on the silane bottle has been connnected to one
of the analog outputs for tube16.  The percentage of silane remaining
in the bottle is displayed with the label "SIH4%".  When this number
falls below 5% the gas panel pressure will drop to about 20 PSI and
the gas bottle should be replaced ASAP.  It would be prudent to check the 
amount of remaining silane prior to any long depositions.  We are 
currently using gas bottles with an initial pressure of 800PSI.

>>> 'tylans' problem from bob -- Fri Aug  4 08:01:00 1989 <<<

Problem: User complains user password, UCB, is not accepted.
         tycom sends back "illegal user password"

Cause:?

Solution:Entered system password and reinstalled, UCB as the
         user password. UCB is now accepted.

>>> 'tylans' problem from parrish -- Mon Sep 18 08:25:16 1989 <<<

system down for maintainance, about 3 hrs.

>>> 'tylans' problem from parrish -- Mon Sep 18 13:07:43 1989 <<<

problem:   exhaust system loaded-up with debris 
 
cause:     oil mixed with the gases pumped through the mech-pump  

solution:  removed the entire exhaust system check and clean-out, and
	   reinstall.

>>> 'tylans' problem from marilyn -- Thu Sep 21 08:34:08 1989 <<<

Problem: Bank 1 is down: tylans 1-2-3-4.

>>> 'tylans' problem from evan -- Thu Sep 21 10:33:13 1989 <<<

There is an intermittant in the bank one power supply.  I have begun to isolate
the fault and hope to have the bank back up today.

>>> 'tylans' problem from evan -- Thu Sep 21 16:47:57 1989 <<<

problem: bank shut down
cause: failure of power supply
solution: repaired a bad solder joint on power supply board and tightened molex
pins on card cage connector.
loaded MAIN1-4X on tylan1 and tylan2, with tylan2 delayed for 5 hours.

bank one is up

>>> 'tylans' problem from galewski -- Fri Sep 22 00:25:41 1989 <<<

problem:
hot by tylans

analysis:
seems recir water to heat exchangers on bank 1 and 2 is off.  ok on bank 3
and 4.

editorial:
maybe deliberate since looks like valve off.  just reporting in case not.
sorry and ignore report if a known state of affairs.

>>> 'tylans' problem from bob -- Fri Sep 22 07:36:31 1989 <<<

Yesterday a pool of water developed under bank2. It was suspected 
that the source of this water was condensate from the heat exchanger
on the tops of bank1,2. In order to verify this the return valve was
closed. If there was a leak water would have continued to pool.

No water was found this AM confirming condensation as the cause. Now 
that bank1 is again functioning there is likely enough heat generated
to prevent a recurrence. The heat exchanger is back on and running.

>>> 'tylans' problem from galewski -- Tue Oct  3 13:56:27 1989 <<<

Problem:  Tytalk does not commiunicate with tycom

Analysis:  Trying to use tytalk gives no response.  Screen goes blank
	   and nothing happens.  Ctrl C stops it with escape [130].
	   Nothing happens on Tycom screen.  I.e. no remote host task
	   in progress message.

Editorial:  Did not find an entry for tytalk so reporting it here.  

>>> 'tylans' problem from bob -- Tue Oct  3 14:56:25 1989 <<<

tytalk is down due to problems with the Tycom-Host wiring link. 
Phil Guillory will be addressing these problems. It may be several 
days before this link can be restored. If this is a problem be 
reply.
bob@argon

>>> 'tylans' problem from tom -- Wed Nov  8 11:46:45 1989 <<<

The panel with the boat loader modules has been pulled out and the cable
for the boat loaders are not tight. This is on Bank 4 only.

>>> 'tylans' problem from evan -- Wed Nov  8 12:08:23 1989 <<<

problem: tension of boat loader cables has pulled out panel
cause: missing screws
solution: loosened all cable tension knobs and pushed panel back into
position.  put in a couple of temp screws to hold it over lunch.
proper sized s.s. screws and washers will be picked up and placed later
today.
bank4 is up and usable

>>> 'tylans' problem from evan -- Wed Nov  8 14:03:31 1989 <<<

The missing screws from the boat loader mounting panel have been replaced.
The alignment of the screw holes for this panel is very poor.  I found a
couple of other missing screws on bank2 and bank3 but there is no way to
put in a screw due to this poor alignment.  The remaining screws should be
adequite to hold the panel in place.

bank4 is up

>>> 'tylans' problem from marilyn -- Wed Jan 17 15:16:43 1990 <<<

Problem: Vacuum wand at tylan 9 found on floor.  Also, the wand
         was loose.
Solution: Replaced entire wand. Users should avoid bending the
          rod to "customize" it; doing so make the entire wand
          assembly loose.

>>> 'tylans' problem from bob -- Fri Jan 19 14:30:22 1990 <<<

The batteries on the tylans were found dry. This is because they
are maintenance free batteries and the charger was restored and
set to "conventional". Maintenance free batteries are equipped
with breather caps with a catalytic spounge which takes H2
evolved during charging and reacts it with O2 in the air to
reform H20 and therefore don't require frequent additions of
H20. They require slower charging cycles so the rate of
formation of water is not exceeded.

Battery replacements will have to be ordered. The batteries have
been retopped off this afternoon and hopefully will support the
RAM for the duration of the shutdown.

>>> 'tylans' problem from bob -- Tue Jan 23 10:34:20 1990 <<<

The batteries on the tylans supported the RAM on bank3 during our
power shutdown. Bank1,2,4 require recalibration which is ongoing.
Gel-Cells have been priced and will be used in place of the current
batteries as they offer the advantage of deep cycling, require no
maintenance and cannot be overcharged. These batteries will be
intalled in aproximately 2 weeks when they arrive. The cost will
be about $150.00, about 2X wet-cell prices.

>>> 'tylans' problem from judy -- Fri Jan 26 09:39:04 1990 <<<

The tycom interface to the wand is down.  I cannot monitor the tylans
from the wand.

>>> 'tylans' problem from evan -- Tue Jan 30 08:21:38 1990 <<<

The standard recipe disc is almost full.  There are not enough available
sectors to edit the longer recipes (I think it uses a temp file of equal
size).  Are there any recipes that can be removed or should a new disc
be started?  I would like to add process pressure control to STEP 55 of
NITSTNBY but cannot edit the program.  Perhaps some of the rarely used
programs can be moved to another disc.

>>> 'tylans' problem from bob -- Mon Feb  5 13:16:55 1990 <<<

A new deep cycle battery has beed procured for the tylans. This battery will
replace the standard autobatteries currently in place. In addition an app-
ropriate charger was secured with automated features which will prevent
overcharging. This new battery was purchased from Battery Specialists in
Oakland and does not require the addition of water or maintenance.

>>> 'tylans' problem from evan -- Tue Feb  6 15:41:11 1990 <<<

The new battery has been installed.  Unfortunatly, I discovered that the
present hookup ties all the banks' power supplies together creating a big
ground loop.  The configuration of battery backup will have to be changed.
The saga continues.....

>>> 'tylans' problem from evan -- Wed Feb  7 11:59:34 1990 <<<

bank3 will be down for several hours this afternoon for a major repair job.

Problem: recipes not loading correctly and/or tubes not firing.
         I have found that the amp boards' power supply is at 8.4 vdc when
         it should be at 12vdc.  In order to reach this, all the ribbon
         connectors will have to be untangled.  Since this P/S runs all
         the tubes in the bank, the entire bank is down.

>>> 'tylans' problem from evan -- Wed Feb  7 13:57:45 1990 <<<

The amp boards' power supply was ok.  It was being loaded down by tylan10
amp board.  When this card was replaced, all tubes in bank3 received
recipies and the heaters fired.
bank3 is up

>>> 'tylans' problem from evan -- Wed Feb  7 14:05:33 1990 <<<

Battery backup is still not functioning.  The battery is charged and connected
to bank3.  The charger is OFF.  
A solution to the ground loop between banks still needs to be solved.

>>> 'tylans' problem from bob -- Thu Mar 15 14:59:56 1990 <<<

A blockage in the tylans exhaust system has been cleared and the manifold
cleaned. This has been added to James' pmstat for visual checks and cleans
every 3 mos. These inspections and cleans are to be reported in tylans-comments.
The tylans are back up.

>>> 'tylans' problem from evan -- Wed Apr  4 09:55:56 1990 <<<

Bank1 was found cold this morning.  I would like to have phillip checkout
the power to this bank when I have it shut down for reinstallation of
tylan4 transformer.  
The bank1 furnaces were restarted with no problem.  This shutdown seems
to happen about once a month for no known reason.  

>>> 'tylans' fix from evan -- Wed Apr 18 16:58:08 1990 <<<

The +-12vdc power supply for the amp cards in bank3 was found with the
-12 and -12sense leads unsoldered.  They were just wrapped around the terminals.This is a mfg defect.  It is the source of many of the power glitches
experienced in bank3.  The leads have been soldered.

>>> 'tylans' fix from evan -- Tue May  1 09:19:29 1990 <<<

problem: bank1 found half dead. tylan1,3,4 cold.
solution: powered down bank and cleaned and tightened molex connections.
lubed contacts with a low insertion contact solution.

Also added battery backup power to this bank.

Reloaded STARTX programs; bank is all firing.

bank1 is up

>>> 'tylans' fix from evan -- Tue May  1 14:36:57 1990 <<<

Battery backup added to bank2.  All banks are now online.
Blimp status input and circuit diagrams still need to be completed.

>>> 'tylans' fix from evan -- Tue May  8 15:31:10 1990 <<<

The heat exchanger fins in all banks have been vacuumed to maintain
efficiency.
The areas inside and under the cabinets were also cleaned out.

>>> 'tylans' problem from marilyn -- Wed May  9 10:00:04 1990 <<<

Problem: Bank 1 is down.

>>> 'tylans' problem from marilyn -- Fri May 11 08:01:50 1990 <<<

Problems: Tylan bank #1 is down/all four tubes

>>> 'tylans' fix from bob -- Fri May 11 09:33:34 1990 <<<

The reason for this bank failure is unknown. All supply voltages
again check OK. I have reloaded main1-4X into all tubes. tylan4
would not accept a load. This points to tylan4 as the possible
culprit. I have "pulled" it's slave cpu board and have tylan1-2
loaded and calibrating. tylan3 is set to cal in 12:00:00 hours
so the vlsi doesn't get warm from to many tubes running cals
at the same time.
tylan4 remains offline pending Evan's repair. It's low use
doesn't require immediate response.

>>> 'tylans' problem from marilyn -- Mon May 14 08:42:55 1990 <<<

Problem: Bank 1 is down/all four tubes.  LEDs are flickering at tube
         1, but the temp. is only 350.

>>> 'tylans' fix from evan -- Mon May 14 11:52:04 1990 <<<

problem: bank1 down
cause: still unknown
solution: reset boards and tycom (to clear i/o error lockout)
          loaded power-up STARTX programs.  all tubes firing.

bbank is up (tylan1 runtime problem reported seperatly not fixed)
