From rayling@xwdev.pandc.rta.oz.au Tue Jun 15 02:49:35 1993
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Date: Tue, 15 Jun 93 10:49:01 +1000
From: rayling@pandc.rta.oz.au (Russell Ayling)
To: wjw@eb.ele.tue.nl
Subject: Apollo FAQ - monitors info.
Status: OR
I compiled this info a while ago from an HP source plus bits
and pieces I picked up. There are frequent questions about the
monitors (esp. frequency) so maybe this, or part of it, could go
in the FAQ. (I've mailed this out many times already, it would
be easier to just refer people to the FAQ.)
Anyway, here it is, do what you like with it:
Colour Apollo monitors.
Colour Apollo monitors.
Part numbers:
007284R 15" 1024x800 60Hz
008398-001R 19" 1024x800 Northern hemisphere
008398-005R 19" 1024x800 Southern hemisphere
010700-001R 19" 1280x1024 68Hz Northern hemisphere
010700-004R 19" 1280x1024 68Hz Southern hemisphere
010700-005R 19" 1280x1024 70Hz Northern hemisphere
010700-006R 19" 1280x1024 70Hz Southern hemisphere
Note: 1280x1024 "F" graphics cards support 68Hz and 70Hz by jumper
selection. (A 70Hz monitor will run at 68Hz, but the image will
be slightly narrower than the screen display limits.)
15" 1024x800 19" 1024x800 19" 1280x1024
-------------- ------------ -----------------
Size 16" 20" 20"
(15" diagonal (19" d.m.) (19" d.m.)
measure)
CRT type Matsushita Matsushita Matsushita
38JFG36X/B 48JFJ50X/B J2P36X
Dot trio
pitch 0.31mm 0.32mm 0.26mm
Phosphor Medium Medium Medium short
persistance P22 persistance P22 persistance P22
Electron gun: Precision inline
Convergence: Self convergence
Deflection angle: 90 degrees
Deflection yoke: Matsushita Type SST
Following specifications apply to the 15" and 19" 1024x800 monitors:
Resolution 1024x800 (noninterlaced)
Scanning frequency range Horizontal 50.2 kHz (+/- 500Hz)
Vertical 47 to 80 Hz
Blanking time Horozontal 4.713 usec maximum
Vertical 828.83 usec max (15")
831 usec max (19")
Retrace time Horozontal 3.713 usec max
Vertical 600 usec max
Video amplifier
bandwidth +/- 3dB form 50Hz to 70MHz minimum
pulse rise and fall time 5 nanosec (max) measured from 10% to 90%
differential tilt not more than 3% on blanking waveforms
video polarity Positive for Peak Luminance of the CRT
video gain no perceptible change at any brightness
setting when a 15nsec pixel is written
adjacent to a 60nsec bar
Degauss
duration < 15 sec
type Automatic at power on
X-Ray radiation < 0.5 MR/H
Horozontal frequency Duration: 19.794 usec (50.519 kHz)
front porch 0.942 usec
sync 1.88 usec
back porch 1.88 usec
blanking 4.71 usec
display area 15.084 usec
Vertical frequency Duration: 16.67 usec (60.0 kHz)
front porch 79.176 usec
sync 79.176 usec
back porch 673.0 usec
blanking 828.83 usec (15")
831 usec (19")
display area 15.841 usec (15")
15.839 usec (19")
Note: Apollo 1024x800 color graphics boards use a horozontal frequency
of 50.519 kHz, vertical frequency of 60Hz
usec = microseconds
Part numbers:
007284R 15" 1024x800 60Hz
008398-001R 19" 1024x800 Northern hemisphere
008398-005R 19" 1024x800 Southern hemisphere
010700-001R 19" 1280x1024 68Hz Northern hemisphere
010700-004R 19" 1280x1024 68Hz Southern hemisphere
010700-005R 19" 1280x1024 70Hz Northern hemisphere
010700-006R 19" 1280x1024 70Hz Southern hemisphere
Note: 1280x1024 "F" graphics cards support 68Hz and 70Hz by jumper
selection. (A 70Hz monitor will run at 68Hz, but the image will
be slightly narrower than the screen display limits.)
15" 1024x800 19" 1024x800 19" 1280x1024
-------------- ------------ -----------------
Size 16" 20" 20"
(15" diagonal (19" d.m.) (19" d.m.)
measure)
CRT type Matsushita Matsushita Matsushita
38JFG36X/B 48JFJ50X/B J2P36X
Dot trio
pitch 0.31mm 0.32mm 0.26mm
Phosphor Medium Medium Medium short
persistance P22 persistance P22 persistance P22
Electron gun: Precision inline
Convergence: Self convergence
Deflection angle: 90 degrees
Deflection yoke: Matsushita Type SST
Following specifications apply to the 15" and 19" 1024x800 monitors:
Resolution 1024x800 (noninterlaced)
Scanning frequency range Horizontal 50.2 kHz (+/- 500Hz)
Vertical 47 to 80 Hz
Blanking time Horozontal 4.713 usec maximum
Vertical 828.83 usec max (15")
831 usec max (19")
Retrace time Horozontal 3.713 usec max
Vertical 600 usec max
Video amplifier
bandwidth +/- 3dB form 50Hz to 70MHz minimum
pulse rise and fall time 5 nanosec (max) measured from 10% to 90%
differential tilt not more than 3% on blanking waveforms
video polarity Positive for Peak Luminance of the CRT
video gain no perceptible change at any brightness
setting when a 15nsec pixel is written
adjacent to a 60nsec bar
Degauss
duration < 15 sec
type Automatic at power on
X-Ray radiation < 0.5 MR/H
Horozontal frequency Duration: 19.794 usec (50.519 kHz)
front porch 0.942 usec
sync 1.88 usec
back porch 1.88 usec
blanking 4.71 usec
display area 15.084 usec
Vertical frequency Duration: 16.67 usec (60.0 kHz)
front porch 79.176 usec
sync 79.176 usec
back porch 673.0 usec
blanking 828.83 usec (15")
831 usec (19")
display area 15.841 usec (15")
15.839 usec (19")
Note: Apollo 1024x800 color graphics boards use a horozontal frequency
of 50.519 kHz, vertical frequency of 60Hz
usec = microseconds
Russell.
---------------------------------------------------------------------------
Russell Ayling | Internet : rayling@xwdev.pandc.rta.oz.au
Roads and Traffic Authority | Phone : + 61 2 218 6945
260 Elizabeth Street | FAX : + 61 2 218 6099
Surry Hills, NSW, AUSTRALIA 2010 |
From eba.eb.ele.tue.nl!svin09.info.win.tue.nl!tuegate.tue.nl!sun4nl!mcsun!uunet!news!agphx.agcs.com!not-for-mail Mon Jul 26 11:59:13 EET 1993
Article: 10503 of comp.sys.apollo
Path: eba.eb.ele.tue.nl!svin09.info.win.tue.nl!tuegate.tue.nl!sun4nl!mcsun!uunet!news!agphx.agcs.com!not-for-mail
From: thomasm@agcs.com (Mike Thomas)
Newsgroups: comp.sys.apollo
Subject: Re: Problems with old bw-Monitor
Date: 15 Jul 1993 11:00:04 -0700
Organization: gte
Lines: 262
Message-ID: <2245v4$1si@en_prise.agcs.com>
References: <POTT.93Jul15115749@hermes.neuroinformatik.ruhr-uni-bochum.de>
NNTP-Posting-Host: 130.131.70.80
>Hi all,
>
>we have some problems with our monitors (bw, 1280x1024, 19'', 4-5 years old).
>One of the interlaced frames is shifted to the right and the other
>frame is shifted to the left, so that these monitors can't be used.
>It seemed that the circuit for the syncronisation is damaged, but
>there is no way to get an circuit-diagram from HP (They would repair
>them for 1000 bucks).
>
>Had someone the same problems with these monitors and can give me a
>hint where to look or does someone know where to get a circuit-diagram
>(it is said that these monitors are made by Hitachi or Sony)?
>
>Thanks,
> Ruediger
The black and white displays were built by PHILIPS in Canada. The plant
there has been shut down, when I last enquired with Philips re: purchasing
spare parts, I was informed that they did not want to support anymore
new customers for this product line. Philips makes the new HP b/w monitors
too, but it looks as if everything is manufactured in Taiwan.
The following is a list of technical info for the color and monochrome
monitors, also includes information on common monchrome monitor repairs.
Color Monitor CRT Specifications
Item 15 inch 19 in. (1024x800) 19 in. (1280x1024)
-------- ----------------- ------------------- ------------------
Size 16in. 15in.diag 20in. 19in.diag 20in. 19in.diag
Gun Precision inline Precision inline Precision inline
Convergence Self-convergence Self-convergence Self-convergence
Deflect ang 90 degrees 90 degrees 90 degrees
pitch .31 mm .32 mm .26 mm
Phosphor Med persist P22 Med persist P22 Med persist P22
CRT Type Matsushita Matsushita Matsushita J2P36X
38JFG36X/B 48JFJ50X/B
Yoke Matsushita SST Matsushita SST Matsushita SST
-----------------------------------------------------------------------
1024x800 Color monitor performance specifications
Resolution 1024x800 noninterlaced
Scanning frequency range Horiz 50.2 kHz +/-500Hz
Vert 47 to 80 Hz
Blanking time Horiz 4.713 usec max
Vert 828.83 usec max (15in.)
831 usec max (19in.)
Retrace time Horiz 3.713 usec max
Vert 600 usec max
Video amplifier Bandwidth +/- 3 dB from 50 Hz to 70 MHz minimum
Pulse rise/fall 5 nanosecs max measured from 10%/90%
Differential tilt Not more than 3% on blanking waveforms
Video polarity Positive for Peak Lumiance of CRT
Video gain No perceptable difference at any brightness
setting when a 15-nano sec pixel is written
adjacent to a 60-nano sec bar.
X-Ray radiation Less than 0.5 MR/H
Horizontal Frequency duration 19.794 usec., Frequency = 50.519 kHz
Horizontal front porch - 0.942 usec.
Horizontal Sync - 1.88 usec.
Horizontal back porch - 1.88 usec.
Horizontal blanking - 4.71 usec.
Horizontal Display Area - 15.084 usec.
Vertical Frequency duration 16.67msec., Frequency = 60.0 Hz
Vertical front porch - 79.176 usec.
Vertical Sync - 79.176 usec.
Vertical back porch - 673.0 usec
Vertical blanking - 828.83 usec (15in.)
831 usec (19in.)
Vertical display area - 15.841 msec (15in.)
15.839 msec (19in.)
------------------------------------------------------------------------------
1280x1024 Color monitor performance specifications
Resolution - 1280 x 1024 noninterlaced
Scanning frequency range - Horizontal 73.7 kHz +/- 500 Hz
Vertical 68.24 Hz
Blanking time - Horizontal 3.328 usec max.
Vertical 759.0 usec. max.
Retrace time - Horizontal 2.5 usec max
Vertical 395 usec max
Video amplifier - Bandwidth +/- 3dB from 50 Hz to 170MHz
Pulse rise/fall 2.7 nanosec. max measured from 10%/90%
Differntial tilt Not more than 3% on blanking waveforms
Video gain linearity - Linear analog amplifier is
capable of resolving a min. of 32 shades of gray from
black to white.
X-Ray radiation - Less than 0.5 MR/H
Pixel rate - 124.996 MHz
Pixel period - 8.000256 nsec.
Aspect Ration 5/4
Horizontally displayed pixels - 1280
Vertically displayed lines - 1024
Horizontal frequency - 73.702 kHz
Horizontal period - 13.568 usec., pixels 1696
Horizontal front porch - 0.256 usec., pixels 32
Horizontal sync - 1.536 usec., pixels 192
Horizontal back porch - 1.536 usec., pixels 192
Horizontal blanking - 3.328 usec., pixels 416
Horizontal display area - 10.240 usec., pixels 1280
Vertical fields per frame (noninterlaced) - 1
Vertical field frequency - 68.24 Hz
Vertical field period - 68.24 msec, lines 1080
Vertical front porch - 40.7 usec, lines 3
Vertical sync - 40.7 usec, lines 3
Vertical back porch - 678 usec., lines 50
Vertical blanking - 759 usec, lines 56
Vertical display area - 13.893 msec, lines 1024
-------------------------------------------------------------------------------
19 inch Monochrome monitor specifications
Resolution - 1280 x 1024 noninterlaced
Active video time - Horizontal 10.857 usec.
Vertical 15.009 msec.
Blanking time - Horizontal 3.8 usec.
Vertical 616 usec.
Front porch - Horizontal 407 nsec.
Vertical 58.6 usec.
Back porch - Horizontal 1.9 usec
Vertical 498 usec.
Sync pulse - Horizontal 1.49 usec.
Vertical 58.6 usec.
Pixel time - 8.47 nsec.
Maximum light output - 30 +/- FLB
-------------------------------------------------------------------------------
Monochrome display cable pin outs:
Pin 1 - ECL Video
Pin 2 - No connection
Pin 3 - Horizontal sync
Pin 4 - Vertical sync
Pin 5 - No connection
Pin 6 - ECL Video
Pin 7 - Video Shield
Pin 8 - Horizontal Sync Return
Pin 9 - Outer Shield Chassis
-------------------------------------------------------------------------------
Mike's handy-dandy guide for repairing mono monitor problems:
1. Screen wrap problem or the horizontal width has grown too large and
the screen appears to be wrapping back around on itself. Replace
C205 and C206 on deflection board, 10 ufd/50V, electrolytic caps.
(Actually only one of these is causing the problem, but I'm too
lazy--change both) Cost: $0.12 per cap.
2. Screen is shrinking from both sides. Change C161, 100 ufd/63V,
electrolytic cap near bottom right of deflection board. Cost: $1.00.
3. Characters seem to be wiggling or vibrating. Change C101, 10 ufd/50V,
electrolytic cap, upper left quarter of deflection board. Cost: $0.12.
4. On all white displays or on white backgrounds there appear bright
horizontal streaks. Replaced C315, 100 ufd/25V, electrolytic cap,
just below C101. Cost: $0.75.
5. Top of display appears to losing a few lines of text sort of gradually
getting darker on top few lines. Replace C318, 4.7 ufd/100V, electro-
lytic cap located left center on deflection board. Cost: $1.00.
6. Display is too large vertically and cannot adjust in. Replace C310,
0.01 ufd/63V, P.S. cap, aluminum colored just above IC301.
7. If the display is too dim and after adjusting brightness it is out-
of-focus, you can try the focus adjustment, but if that doesn't really
work well enough you will need to replace the CRT. This is not that
difficult, takes about 45 minutes, costs: $125.00. I use the on-line
diagnostic "/systest/grtest" to perform focus adjustments. Just enter
ad (adjustments) at the grtest prompt and select test 13. Save all
of the magnets from any scrapped monitor yokes, you'll need them to
adjust display geometry with the new CRT's.
8. Also save your old flyback transformers on any scrapped displays,
flybacks cause several different problems: Squeals no picture and
a 'jittery' display are both flyback problems. The key to flyback
jitter is when the display shrinks or jerks both top, bottom and
both sides simutaneously. Another flyback problem is a slow
expansion and contraction of the display, some of my customers tell
me that it's 'breathing'.
9. As far as adjusting focus goes, the pot labeled 'DYN FOC HOR' adjusts
the focus on the far right and left side of the screen. It also
balances the focus between these sides, so be sure to check both
left and right sides when adjusting this pot. The pot labeled
'DYN FOC VERT' just adjusts the focus for the top and bottom of the
display. I usually can't get perfect focus on the very top of the
display, especially at this site where the brightness has to be
turned up especially high. If no matter what you do with the focus
pots does not work, you might try playing with the 'focus phase' adj.
Focus phase is controlled by the coil with the adjustable core in the
center of the board. The way I play with it is to turn the main
focus pot, R431, to midrange and do the same for the two dynamic
focus pots. I then adjust focus phase for good focus in the center
of the display, then go through the normal focus adjustments, i.e.
turn R431 for best focus overall then adjust dynamic for sides and
top and bottom.
All of these tips apply only for the 8399-XXX series of monitors.
EXERCISE CAUTION WHEN WORKING ON MONITORS, THE MONO MONITOR HAS 18KV
GOING TO THE CRT. Let your techs show you the ropes on monitor repairs,
if you're going to be messing around with any live equipment. Be
especially careful when doing focus adjustments, aside from personal
risk you can smoke your board.
------------------------------------------------------------------------------
DN2500 Monochrome monitor performance specifications:
Resolution - 1280 x 1024 noninterlaced
Active video time - Horizontal 10.240 usec.
Vertical 13.63 msec.
Blanking time - Horizontal 3.072 usec.
Vertical 639.0 usec.
Front porch - Horizontal 0.256 usec
Vertical 39.94 usec
Back porch - Horizontal 1.536 usec.
Vertical 559.0 usec.
Sync pulse - Horizontal 1.280 usec.
Vertical 39.94 usec
Pixel time - 8.00 nsec.
Hope this helps, Mike Thomas