Philips FIMI Installation instructions

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Field Support Manual
Monitor 12·~ 15
11
( Fl MI)
PHILIPS
~
~
Telecommunication
and Data Systems PHILIPS

A PUBLICATION or
PHILIPS TELECOMMUNICATION AND DATA SYSTEMS
APELDOORN, THE NETHERLANDS
PUB. NO. 5122 991 30522
DATE
May 1983
Great care has been taken to ensure that the information
contained in this handbook is accurate and complete.
Should any errors or omissions be discovered, however,
or should any user wish to make a suggestion for
improving this handbook, he is invited to send the
relevant details to:
CUSTOMER SERVICE DOCUMENTATION AND TRAINING
P.O. BOX 245
7300 AE APELDOORN.
THE NETHERLANDS.
Copyright by N.V. PHILIPS' GLOEILAMPENFABRIEKEN 1983
All rights are reserved. Reproduction in whole or in
part is prohibited without the written consent of the
copyright owner.

SERVICE MANUAL STATUS RECORD
TITLE : FIELD SUPPORT MANUAL MONITOR 12
11
/15
11
(FIMI)
PUBLICATION NUMBER 5122 991 3052X
I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I
PUB. NO.
12th
I di git
UPDATE
PACKAGE
SI. NO.
PAGES DATE REMARKS
I AFFECTED
I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I
2 I All '
8305 ' Total revision and 15"
version added
I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1 1 I I I 1 1 I 1 1 1 I

TABLE OF CONTENTS
CHAPTER
1 GENERAL DESCRIPTION PAGE 1-1 thru 1-7
2 FUNCTIONAL DESCRIPTION
2-1 thru 2-4
3 DETAILED DESCRIPTION
3-1 thru
3-6
4 DIAGRAMS 4-1 thru 4-3
. 5
LISTINGS not applicable
6
PARTS LIST 6-1 thru 6-
21
7 MAINTENANCE 7-1 thru
7-6
8
WORKSHOP REPAIR
8-1 thru 8-13
8305
FIMI MON 12
11
/15
11
0-1

I
11
,,
I

1
GENERAL DESCRIPTION
SECTION 1.1
INTRODUCTION
PAGE 1-2
1.2
PHYSICAL DESCRIPTION
1-2
1. 2
.1
Support Frame and CRT Mounting - 12 inch 1-2
1.2.1.1
CRT Mounting - 15 inch 1-2
1. 2.2 Deflection Unit 1-2
1.2.3 Electronics
Rack 1-2
1. 2.4
Power Card Rack 1-3
1.2.5
Video Amplifier 1-3
1. 2. 6 Electronics Board 1-3
1. 3
TECHNICAL DATA
1-4
1. 3.1 Performance
Data
1-4
1. 3.2
Power Requirements 1-4
1.
3. 3 Environment 1-5
1.4
INTERFACES
1-5
1. 4.1
Electrical
1-5
1.4.2 Definition
of Interface Signals 1-6
1.4.3 Mechanical 1-6
1. 5
APPLICATION NOTES
1-6
1.6
INSTALLATION DATA
1-6
1.6.l Packing
and Unpacking
1-6
LIST OF ILLUSTRATIONS
FIGURE
1.1 MONITOR - GENERAL
VIEW
1-3
1.2
PACKING DETAILS
1-7
LIST OF TABLES
TABLE
1.1
ELECTRICAL INTERFACES
1-5
8305
FIMI MO N12"/15" 1-1

1.1 INTRODUCTION
This manual provides the technical and maintenance information necessary for the
effective field servicing of FIMI Monitors. FIMI Monitors are employed in
display equipments to visually present alphanumeric and/or graphical
information.
The visual presentation is achieved with either a 12 in ch or 15
inch monochrome CRT displaying light characters on a dark background or vice
versa.
Electronic cicuitry resident in the monitor converts serial video data into
synchronized characters or symbols for display on the screen of the CRT . Disp l ay
equipment compatibility is governed by the selection of respective logic cards
and cabinet mounting, which is determined at system configuration level .
This
manual is only concerned with the basic constituent parts of a FI MI
Monitor, which excludes logic cards etc. However, whenever necessary relevant
cross-references to associated Field Service Manuals are given . The consti tuent
parts are described in section 1.2 PHYSICAL DESCRIPTION .
1.2 PHYSICAL DESCRIPTION (SEE FIGURE 1.1)
This section describes the general physical features of the FIMI Monitor, which
includes details of the unit arrangement appertaining to FIMI Monitor
applications as specified in section 1.5.
1.2.1 SUPPORT FRAME AND CRT MOUNTING - 12 INCH
The support frame comprises four preformed metallic plates which provide, when
secured together by eight lock screws, the main structural support for the CRT
and pcb mounting racks. The CRT is simply screw mounted to the left and right
side plates of the support frame, a metallic strap affixed to the outside
perimeter of
the CRT retains the four mounting lugs used for this purpose.
1.2.1.1 CRT MOUNTING - 15 INCH
The support frame used in the 12 inch version is not employed in the 15 inch
version.
The CRT is simply screw mounted to the front pane l of the VDU housing.
1.2.2 DEFLECTION UNIT
The deflection unit forms part of the CRT assembly, being mounted directly onto
the
CRT stem and secured in position by a screw clamp.
1.2.3 ELECTRONICS RACK
This rack retains the CRT electro n ics pcb with additional prov1s1on for three
logic cards, and is located adjacent to the right side panel. Card retention is
achieved with slides clip mounted in the top and bottom panels of the support
frame.
Each slide has two card locking clips which secure the card in position.
Access to the electronics rack is fr om the rear of the support frame .
1-2
FIMI MON 12
11
/15
11
8305

1.2.4 POWER CARD RACK
This rack is identical in physical features with that of the electronics rack,
except
that it is formed by a single slide position. This rack retains a power
supply card for use in certain monitor configurations.
1.2.5 VIDEO AMPLIFIER
This board contains the circuitry for video drive, being directly mounted to the
7-pin connector of the CRT.
1.2.6 ELECTRONICS BOARD
This board is located in position 4 of the electronics rack, in proximity to the
CRT; of special note is the external brigthness control potentiometer which,
from its mounting on the board, protrudes below the CRT screen.
TOP PLATE
CRT
SIDE PLATE
___ _ __....
VIDEO AMP LIFIER PCB
i
I ,
i j
~
Figure 1.1 MONITOR GENERAL VIEW (12-INCH)
8305
FIMI MON 12
11
/15
11
1-3

1.3 TECHNICAL DATA
1.3.1 PERFORMANCE DATA
Screen Display Capacity
12 inch screen
15 inch screen
Common data
CRT Display
1.3.2 POWER REQUIREMENTS
1920 Characters
24 rows
80 characters/row
7
dots/character vertical
9 dots/character block horizontal
15 dots/character block vertical
18,452 MHz dot clock rate
2,047 MHz character rate
230 x 140mm display size
2640 characters
24 rows
110 characters/row
5
dots/character vertical
7 dots/character block horizontal
15 dots/character vertical
19,6608 MHz dot clock rate
2,808 MHz character rate
258 x 190mm display size
15 scan lines/character block
25 rows/frame
390 scan lines/frame
50Hz frame refresh rate
19,5 KHz scan line refresh rate
White Phosphor (P4 standard) (with
options of orange or green phosphor).
The power supply requirements for the monitor are:
Voltage
Current Consumption +
12VDC ± 180mV
200mA minimum
2A maximum
1.3.3 ENVIRONMENT
Temperature range:
Operating - +
5°C to+ 55°C
Storage - - 40°C to+ 65°C
Dynamic Temperature (c. Temp/ 6. Time)
Operating -l0°C/30 mins maximum
Storage -30°C/5 mins maximum
Relative Humidity:
5% to 98% non-condensing
Air Pressure:
1-4
Operating -
700 to 1100 mbar
Storage - 450 to 1100 mbar
FIMI MON 12
11
/15
11
8305

1.4 INTERFACES
1.4.1 ELECTRICAL
SIGNAL NOMENCLATURE
CONNECTOR
CONTACT NO.
Horizontal Sync Xl b-1
Vertical Sync Xl
b-2
Video Xl
b-3
Dummy Xl b-4
Spare
Xl b-5
OV (Signal Ground) Xl a-1
ov
Xl
a-2
ov Xl a-3
Spare
Xl
a-4
Spare
Xl a-5
+ 12V
X2
al, a2, a3, a4,
a5
OV (Signal Ground)
X2 bl, b2, b3, b4,
b5
Dynamic Focus
Xe
1
OV (Signal Ground)
Xe
2
Video Xe
3
Spare
Xe
4
Brightness
Xe
5
Focus
Xp
1
CRT Heater Xp
2
+ 64V
Xp
3
+ 12V
Xp
4
Vertical Deflection Return
Xt
3
Horizontal Deflection Return
Xt
4
Horizontal Deflection
Xt
5
Vertical Deflection
Xt
6
Table 1.1
ELECTRICAL INTERFACES
8305
FIMI MON 12
11
/15
11
1-5

1.4.2 DEFINITION OF INTERFACE SIGNALS
HORIZONTAL SYNC
A pulse which is positive going from a low level (less than or equal to 0,5V)
with an amplitude of 2,5V to 5V. Pulse width of 4 to 2luS.
VERTICAL SYNC
A pulse which is positive going from a low level (less than or equal to 0,5V)
with an amplitude of 2,5 to 5V. Pulse width of 155uS.
VIDEO
Positive going pulse; positive level denotes white image, zero volts (less than
or equal
to 0,5V) denotes black.
1.4.3 MECHANICAL
Refer to related terminal Field Support Manual for cabinet or display interface
details.
1.5 APPLICATION NOTES
The current applications of the FIMI Monitor are as follows:
. Terminal
P8042 (UPL)
. Terminal P8043
1.6 INSTALLATION DATA
It is an essential requirement that the environmental conditions of the site
where the monitor is to be installed, conform to the specification detailed
in section 1.3. Refer to respective systems installation data for details of
monitor
installation.
1.6.l PACKING AND UNPACKING
For comprehensive details relating to packaging of the monitor refer to fig.
1.2.
1-6
FIMI MON 12"/15" 8305

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8305
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Figure 1.2 PACKING DETAILS
FIMI MON 12"/15"
1 MONITOR
POLVSTRENE PACKING
INDUSTRIAL ADHESIVE TAPE
LABEL
CARDBOARD CONTA
INER
6 CARDBOARD CONTA INER
7 SUPPORT BLOCKS
B SECURING STRIPS
1-7

2
FUNCTIONAL DESCRIPTION
SECTION
2.1 PRINCIPLES OF OPERATION
PAGE 2-2
2.2
DESCRIPTION OF CIRCUITS 2-3
2.2.1 Vertical Synchronization
Circuit and 2-3
Deflection Amplifier
2.2.2
Horizontal Synchronization Circuit 2-3
2.2.3 Horizontal Deflection Amplifier 2-4
2.2.4
Video Amplifier 2-4
2.2.5
CRT Supplies 2-4
2.2.6 Cathode
Ray Tube
2-4
LIST OF ILLUSTRATIONS
FIGURE 2.1
BLOCK DIAGRAM FIMI MONITOR
2-3
8305
FIMI MON 12
11
/15
11
2-1

2.1 PRINCIPLES OF OPERATION
The basic functional block diagram of the FIMI Monitor is shown in figure 2.1.
An electron beam generated in the CRT, scans the screen a set number of tin;es
forming a
raster of horizontal lines. One complete raster scan of the screen
constitutes a frame, this is repeated or refreshed every 20mS. The electron beam
scanning is controlled by horizontal and vertical deflection yokes, which are
driven
by current waveforms derived from the respective circuits on the CRT
Electronics pcb.
The vertical and horizontal deflection signals are synchronised with timing
pulses, VESY and HOSY, to effec t the frame refresh and scan line retrace
operations at the desired instant in time.
By modulating the beam intensity with t he serial video input, character patterns
are produced on the CRT screen. Each character is represented by a matrix of
illuminated
dots, each dot results f rom an increase in the beam intensity
(modulation) over a short period. Prior to modulating the beam, the serial video
input
is amplified on the Video Amplifier board, the output stage of which
controls the current conditions in the CRT cathode.
The total CRT eletronics and video amplifier package requires only the one power
supply voltage, this being +12V; this is derived from a power source also
mounted in the monitor. (Note that the physical location of the +12V source
will vary with monitor
application). The various additional supplies required by
the CRT viz 14,5KV EHT and several circuits on the CRT electronics pcb, are
produced
either by series regulation of the +12V supply or from a transformer
secondary winding supply.
2-2
VIDEO
VERTICAL SYNC
VESY
,-- - - -
--
- -1
I i
I '18\.\n.
'\"-,.'1,,oW\\ ~
I
i VERTICAL I
I SYNCHRONIZATION
AND I
DEFLECTION
I
AMPLIFIER
I
I I
I
,- - -----,
I I
i I
I I
VIDEO
I
AMPLIF I ER
I
I I
I I
L_ - -
>----_J
CRT -\\),,\,~
(YYV'
I
I L
____
~ - ~ -- · -
-- · - · -
I
;i...~1 ...
I
I HORIZONTAL HORIZONTAL
SYNCHRONIZATION DEFLECTION
CRT
- · ---1
I
I
I
HORIZONTAL SYNC I
AMPLIFIER
SUPP LI ES I
HOSY
I
I I
i I I i
+12V
I
I I
L - - - ·- - - - - - - - - - - - - - - - - - -·- ·- · - _J
01'9 1
Figure 2.1 BLOCK DIAGRAM FIMI MONITOR
FIMI MON 12
11
/15
11
8305