PMC, PMD, PMF, PMFR , AMC ( service interval: inside every 10th. year, due to limited backup battery life time ) .
We also need a copy of your programming journal or other backup.PMC, PMD have no EEPROM program storage and need extra precaution.Shipping with DHL directly to the ship's agent 1 week before ETA.
The board must be installed in the exchange to be recharged inside 2 weeks after shipping date, After 4 weeks the NiCad backup battery is totally discharged and the program lost.
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If a programming backup on PC or paper is missing: General programming preparation , what must be known before programming . Sorting out what's inside the exchange : Version of running
software on the proccessor board., standard boards / extra function boards,
internal wireing schematic to local terminal numbers .
What's connected to the exchange : stations , stations catalog
number , remote equipment and other hardware connected , ref. to terminal
numbers inside the exchange .
***
NOTE ! If the exchange is not properly working
pushing the green programming button on the PMC/PMD/PMF board will alter your customer
specified baud rate programming. This make no sense if you want to repair
the exchange.The programming :
This part is best solved
by a trained programmer combining the use of a pc with different
programming and logging tools, and a programming panel . If handshake circuits
is missing , just add it . And the software has to be replaced to
corresponding handshake software . The PMD ver. Lxx or 2.2 allready
have handshake enabled .Using a programming panel : Make direct addressed
programming by entering line numbers in different system tables and at these
addresses write 16bit - 4 letter hex code with special meaning . Parts
of the exchanges programming are available only by using this programming
panel . To make meaningful programming it's a must to have good knowledge
in system software organization and hardware functions .Programming from a station. Easy programming of catalog numbers
for one type of stations, but only a little part of the total programming
is available.We'll do the programming : Send us the PMD/PMC board , the program
journal and a list of wanted program changes . We'll program it and
return the board w/ a new backup battery installed .***
Important reading.
***
The most important
notice!Note! Power
OFF when plugging !Like replacing boards in a computer , to avoid serious damage
on the exchange electronic boards allways
turn off the power before replacing any board
in the exchange !!.
The printed circuit board of the AB-board ( 61019 ) with surface
mounted micro-components acts like a heatsink and some dark marks tells us
about high temperatures on the PCB surface. Dried out electrolytic capacitors
is a common problem . A service tip : Lift all
electrolytic capacitors to avoid direct contact with the hot PCB surface
, then the AB-boards will work properly several times longer .If hotplugged the 61019 AB board will be damaged
( normally beyond repair ), also expect damage on other AB / CLM boards
.About CLM boards : Mostly
minor faults . Obsolete, but repairable . A
typical problem > Only a low beep while pressing a numeric
button on a station > No connection . Or if one or more Ab-boards
has been "hotplugged" also the CLM board may
crash , noise only while pressing a numeric button is a typical symptom .About DCB / DPB boards: The nonvolatile
sram programming of this board is not an easy task , it's smart to
have all DCB / DPB programming written down in a programming journal
.If the DCB / DPB program is all lost , in most cases a trained expert must
examine the excange , the DCB / DPB connections and software to compose
a new programming .Lifetime of the Lithium backup battery on the DCB / DPB board is 10
years and it must be replaced while the DCB / DPB board is still working
! Look for the production year & week , written or stamped on
the lithium battery .If battery is old send us the DCB / DPB board to make a complete data
backup , before any attempt to replace this old lithium cell . Do not replace
this battery yourself , the programming will be lost !Some parts are obsolete , like the TMS9902 circuit .
About FFT boards : Mostly minor faults
. Obsolete, but repairable . Ask us .About FLX / LEX / LUX : Mostly minor
faults . Some obsolete
parts. Ask us .About PMI boards : No problems
or faults . Some hot areas , resistors should be lifted to avoid damage to
the PCB .About PWR supplies : Overheating , fans are not working , dried out capacitors , noicy
stations , unstable exchange function . Note!
Some Vingtor VMP52 / VMP120 PWR 's have no
+5VDC overvoltage protection !About SB boards: No problems
or faults . Some hot areas , resistors should be lifted to avoid damage to
the PCB .About SB4 boards: No problems or
faults . Fix Xtal to the Printed Circuit Board ( PCB) surface.About SCE boards: Minor problems.
Fix Xtal to the Printed Circuit Board ( PCB) surface. Some parts are obsolete
, like the TMS9902 circuit .
******************************Standard Ships equipment, on bridge center console.
Emergency microphone VMP 501 / VMP 601
Connected to command input - 100V line amplifiers / command relay alarm bells
Will override alarms, intercom and alarm bells
Alarm Generator user panel.
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Voltages measured inside a Stentofon MPC / Compact
or Vingtor Marine VMP exchange
must be floating , referred to mains ground . Measured
voltage must roll towards zero . External components " like a telephone
interface " often cause a voltage ref. problem .
Jo Tech Service specialities : some new / improved station functions are available with these systems.
Example: pa router ( MPC / VMP 52 - 120 )
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Non volatile multi message hardware : chipcorder
