_ DEC-O-LOG for LG02

_ DOL, LG02-I001, PRINTER JUL 87

PROBLEM: Customer/Marketing complaints that the graphics
plotting performance is not acceptable. (Graphics throughput
slow.) 

FIELD EFFECTIVITY: The LG02 Controller PCB, should be exchanged
on the LG02, when the customer complains of the slow speed
when using the printer in graphics mode. 

QUICK CHECK: "Report" key on LG02 operator panel will produce
a printed report. Firmware revision level will be "V2.0 or
higher. 


FCO KIT ORDERING:
EQ-01476-01  FCO, PARTS
FA-04765-01  FCO only


_ DOL, LG02-R002, Printer, NOV 88

PROBLEM: The most common symptoms experienced are
as follows:  1. Printer stops and no error 
message is displayed.  2. Printer stops and paper
motion error is displayed.  3. prior to printer
stopping, paper won't move or moves excessively.     

FIELD EFFECTIVITY: All models of the LG02 printers
must be upgraded.  Customers are experiencing high
incidence of failure from the power amp PCB due
to its minimal current carrying margin and lack of
shut-down capability in its design.     

QUICK CHECK: Check the printer serial number for
93906 or greater.  For printers having lower
serial numbers, check Revision Levels:  1. On the
unit, check for the DEC part number (LG02-A2) label
(may not be present) inside the right side panel for
Rev. A02.  2. On the Power Amp PCB and CPU EPROM
(SOCKET 4B), check the Vendor part numbers:
a. Power Amp PCB for Rev. G.  b. CPU EPROM (socket 4B)
for number 700524-111.2.  For anything less, the
printer must be upgraded by the FCO.     

    This revised FCO supersedes Rev. A released 01 Nov. 1988.
    It has been revised to correct the part designator in the
    Applicability Section on page 1.


        
FCO KIT ORDERING:
EQ-01529-01  FCO, PARTS
FA-04830-01  FCO only


_ DOL, LG02-F003, Impact Printer, MAR 90

PROBLEM: 1. Printer vertical pitch returns to default while using a
Font selected from the Control Panel which uses a non-default Pitch.
This happens when a font is reselected via the data stream. 2. The Printer
sometimes hangs after entry of invalid data via Control Panel. 3. The
Summary sheet and/or Flag page becomes corrupted after a file is sent to
the printer which selects the 13.3 cpi font and then prints several lines
of 160 characters in width.  Subsequent summary sheets would have some of
the font information corrupted and have flag page print problems. 4. Panel
lock-up after paper out, platen up, and override.  If a paper out error
occurs and the operator raises the platen before pressing override, the
printer will lock up.  5.  Panel lock-up when powering up with error
present.  If there are any non-fatal errors present during power-up, the
printer will lock-up.  6.  ESD blanks out the control panel.  7.  When
multiple <CR> <LF> (over 50) are issued in a row at 8 lpi, a false
paper motion error is detected by the new Power AMP (See FCO LG02-R002).
8. When loss of power is experienced in the middle of a compressed print
job, the printer will lock up after the power returns and the printer
is put on-line.

FIELD EFFECTIVITY: All models of the LG02 may be upgraded with this FCO.
Customers whose systems exhibit one or more of the problems stated will
required this upgrade. 

QUICK CHECK:Print out the Printer Status Sheet:  1.  Press the "off-line"
key at the control panel.  2.  Press the "report" key.  Check for the
firmware Rev. Level (top right corner of the first page.)  If the Rev.
Level is V2.0 (F/W Revision Level V2.0) or less, then the FCO is required.

FCO KIT ORDERING:
EQ-01562-02 FCO, Parts
FA-04873-02 FCO Document
(European version also available)