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8 105E CM23 GSIII Electrical Instructions
9 Go to cover page
0. General: 2. EHT voltage (3540)
When carrying out the electrical setting, in many cases a video - Connect a dc voltmeter between capacitor 2643 joint and ground.
signal must be applied to the monitor. A computer with : - Apply a video signal in the 640 x 480 with 31.5 kHz/60 Hz mode.
- Select the "crosshatch" pattern. Adjust trimming pot-meter 3540
- "ATI VGA1024" interface card until the DC voltmeter reads : 66.5 +/- 0.2V (for PHILIPS CRT),
- PGA1024 (4822 212 30916) But 66.5V for CPT CRT
- PGA1280 (4822 212 30917)
3. Monitor the following auxiliary voltages
are used as the video signal source. The signal pattern are selected
from the "service test software" package. see user guide 4822 727 +12V source across C2158 +12.7V +/- 0.5 VDC
19896 (ATI 1024), or 4822 727 20273 (PGA 1280). - 12V source across C2162 - 12.7V +/- 0.5 VDC
+8V source across C2172 +8.0V +/- 0.4 VDC
+6V source across C2164 +6.2V +/- 0.3 VDC
0.1 Factory preset timing mode -178V source across C2647 -178V +/- 8.0 VDC
+180V source across C2153 +183V +/- 1.5 VDC
- Installation instruction for the ATI card: +5V source across C2168 +5.0V +/- 0.25VDC
- Place the ATI interface card into the computer. +80V source across C2156 +81.0 V +/- 0.5 VDC
- Select the "vsetup" file from the utility disk belonging to the card.
- Select "8 bits" or "16 bits" rom operation depending on your 4. General conditions for alignment
computer type.
- Select "analog monitor". 4.1 During all alignments, supply a distortion free AC mains voltage
- Select the monitor type from video ROM BIOS. to set via an isolating transformer with low internal impedance.
- Select "MAGNAVOX CM5000" for the resolutions: 4.2 Align in pre-warmed condition, at least 30 minutes warm-up with
Reolution H.freq./V.freq. H. V. nominal picture brightness.
640 x 480 31.5 kHz/70 Hz - + 4.3 Purity, geometry and subsequent alignments should be carried
640 x 480 31.5 kHz/60 Hz - - out in magnetic cage with correct magnetic field.
640 x 480 37.5 kHz/75 Hz - -
800 x 600 46.9 kHz/75 Hz + + Northern hemisphere : H=0, V=450 mG, Z=0
800 x 600 53.7 kHz/85 Hz + + Southern hemisphere : H=0, V=-500 mG, Z=0
1024 x 768 48.3 kHz/60 Hz - - Equatorial Support : H=0, V=0 mG, Z=0
- Reboot your computer, again. 4.4 All voltages are to be measured or applied with respect to
- Put the floppy diskette containing the service test software package ground.
in the computer and select the test pattern indicated for the Note: Do not use heatsink as ground.
service setting. 4.5 Adjust brightness controls to center position except for contrast
control which should be set to MAX.
0.2 With normal VGA card: 5. To access Factory Mode:
If not using the ATI card during repair or alignment, The service 1. When "shift" LED is off, control is at 1st level, and when LED is on,
engineer also can use this service test software adapting with normal control is at 2nd level.
standard VGA adaptor and using standard VGA mode
640 x 480, 31.5kHz/60Hz (only) as signal source. 2. "Shift" LED will flash 0.1 second at the time when function keys (e.g.
H-Shift, H-Size,...,etc.) are pressed, and it should flash continuously
when adjusting "+" or "-" is at end of range. Releasing "+" or "-" key,
0.3 AC/DC measurement: all adjusted values will be stored automatically after 10 seconds.(at
user Mode).
The measurements for AC waveform and DC figure is based on 640 x
480 31.5 kHz / 60 Hz resolution mode with test pattern gray scale. 3. Factory preset mode entry, in power on status pressed "H-shift" and
"V-size"simultaneously at 1st level. After 2 seconds the shift led will
flash 3 times then the u-controller will entry factory mode.
( turn off power and then on to return to user mode)
1. B+ Supply voltage (3178), 81 VDC
4. "Power down overrule" is only functional in power saving status and
will be reset by switching off power.
- Set the brightness front control and the contrast front control to
minimum. 5. At factory adjust mode, Press Shift key( shift LED on) then press V-
- Set the trimming pot-meters 3178/3540 in the mechanical mid- size, the modified data will be stored in factory preset area on
position (this is a pre-setting). EEPROM and shift LED will flash two times.
- Connect a DC voltmeter between capacitor 2156 joint and ground.
- Switch on the monitor. 6. At service, please entry Factory mode (pressing H-Shift and V-size
- Apply a video signal in the 640 x 480 with 31.5 kHz/60 Hz mode. simultaneously) first before using service factory alignment tools or
- Select the "crosshatch" pattern. auto-alignment to perform factory alignment.
- Adjust trimming pot-meter 3178 until the DC voltmeter reads 81 V
+/- 0.2V.
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Electrical Instructions (Continued) 105E CM23 GSIII 9
9 Go to cover page
6. Picture geometry setting for factory pre-set mode 7.6 Set 7099 TDA4886 contrast value at 63. (dec)
6.1 General 7.7 Set CA100 high R,G,B scale 100 = 50 +/- 1FL (contrast at Max.)
- Pre-set contrast front control and brightness front control
to mid-position. 7.8 Adjust R,B gain so that blue and green have the same readings
as red on high brightness scale.
6.2 53.7 kHz 85 Hz mode
(apply crosshatch pattern in 800 x 600 with 53.7 kHz/85 Hz mode) 7.9 Set contrast at minimum and repeat 7.5, 7.6, 7.7, 7.8 until RGB
three guns get same readings on low and high brightness scale.
6.3 Alignment of Horizontal and vertical geometry
7.10 Apply full white at contrast and ABL via I2C to reach 30 +/- 1FL
6.3.1 Adjust the picture width to 270 mm. (contrast at Max.)
6.3.2 Adjust the H-phase to center position. 7.11 Check full white at contrast and brightness at minimum, the
foreground shall be extinguished.
6.3.3 Adjust the picture height to 202 mm.
8. Focus adjustment
6.3.4 Adjust V-Position to center
Adjust/Trapezium/pincushion Apply a signal of " @ " character. at 53.6 kHz/85 Hz mode set the
brightness to mid-position , contrast to max - position and adjust
6.3.5 Adjust picture tilt I2 CBUS for correct top/bottom lines.(Optional) the focus for optimal sharpness in the area within 2/3 from the
(picture tube should be mounted without tilt w.r.t. cabinet) screen center.
6.3.6 Adjust the corner by I2 C to straight vertical lines of the left and 9. Loading DDC code
right edge. Hard ware DDC(with 7807 model)
The DDC HEX data(refer sheet 190) should be written into the
6.3.7 Adjust the parallelogram by I2 C to get optimum vertical line. EEPROM (7807) by EEPROM writer or equivalent method.
Software DDC(with 7807 model)
6.3.8 Adjust the unbalance pin by I2 C to get optimum vertical line. The DDC HEX data(refer sheet 190) should be written into the
EEPROM (7806) Page 2,0~127 bytes by EEPROM writer or
6.3.9 Adjust the unbalance Vertical linearity balance by I2 C to get equivalent method.
optimum vertical linearity balance.
a: Service DDC Kit
6.3.10 Adjust the unbalance Vertival linearity by I2 C to get optimum DDC Module (DDC cable), Part number = 4822 320 12004
vertical linearity. DDCV2u.EXE software (3.5" disk), Part number = 4822 711 00024
b: Please refer to Service information 4822 727 21995 for using
6.4 Adjust size / centering / trapezium / pincushion / parallelogram the Service DDC Kit.
of all other preset modes via I2 C bus
7. Alignments of VG2 cut-off point, white tracking:
7.1 External degaussing
7.1.1 Remove ferromagnetic measuring equipment, iron table, etc.)
in the neighborhood of the apparatus within the half meter.
7.1.2 positioned in the E-W direction, set has to be degaussed
externally with coil 7122 704 18001(220V)
7.1.3 Slowly increase the distance between the picture tube and
degaussing coil, keep the coil in parallel with the screen of CRT .
When the distance is more than 2m, then turn off the degaussing
current.
7.2 Apply 53.7Khz/85Hz 800 x 600 mode with 700mV 50x50mm
white block pattern.
7.3 Set brightness control at center click and contrast at Maximum
Set R,G,B cut-off at 50% (EEPROM preload value)
R,G,B gain at 28(dec) (EEPROM preload value)
ABL at 50% (EEPROM preload value)
Via I2 C bus , set 7099 TDA 4886 contrast to minimum
7.4 With the help of a factory calibrated color analyzer CA100
set LOW R,G,B scale 100+0.12FL, X=281, y=311.
Adjust VG2(screen) until brightness gun at 100 on low brightness
scale.
7.5 Adjust the R,G,B cut - off for all gun readings to get 100 on low
brightness scale.
3Back Forward4
10 105E CM23 GSIII Electrical Instructions(continued)
9 Go to cover page
10. Purity adjustment
- Make sure the monitor is not exposed to any
external magnetic field.
- Produce a full red pattern on the screen, adjust the
purity magnet rings on the PCM assy (on CRT) to
obtain a complete field of the color red. This is done
by moving the two tabs (2-pole) in such a manner
that they advance in an opposite direction but at
2-pole purity magnet
the same time to obtain the same angle between
the two tabs, which should be approximately 180 6-pole convergence magnet
degree. 4-pole convergence magnet
- Check by full green pattern and full blue pattern Deflection Yoke
again to observe their respective color purity.
11. Static convergence
Introduction 4-pole Beam motion producced by the
Slight deviation in the static convergence can be
4-pole convergence magnet
corrected by using two permanent pairs of magnets
which are fitted around the neck of the CRT. These
are the 4-pole magnet and the 6-pole magnet. S
The 4-pole magnet move the outermost electron S N
beams (R and B) parallel in the opposite direction
from the other. The 6-pole magnet moves the B G R N B G R N
outermost electron beam (R, B and G) parallel in the
opposite direction from the other. N S
The magnetic field of the above magnets do not affect S
the center of the CRT neck.
Setting Beam displacement Magnetic flux
- Before the static convergence setting can be made, direction lines
the monitor must be switched on for 30 minutes.
- The focus setting must be made correctly.
- Signal: 640 * 480, 31.5 kHz/60 Hz mode.
- Set the tabs of the 4-pole magnet in the neutral
position. This is when the tabs are opposite one
6-pole Beam motion producced by the
another. In this position the magnets do not affect the
deflection of the R and B electron beams. 6- pole convergence magnet
- Set the tabs of the 6-pole magnet in the neutral
N
position. This is when the tabs are opposite one S N
another. In this position the magnets do not affect the S S
deflection of the R, B, and G electron beams.
B G R N B G R S
- First set the 4-pole magnet optimally.
- Then set the 6-pole magnet optimally. N N
- If the convergence is not now optimal, then adjust to S N
the optimal setting with the 4-pole magnet and then with S
the 6- Pole magnet again.
- Set the tabs of the 6-pole magnet in the neutral
position. This is when the tabs are opposite one
another. In this position the magnets do not affect the
deflection of the R, B, and G electron beams.
- First set the 4-pole magnet optimally.
- Then set the 6-pole magnet optimally.
- If the convergence is not now optimal, then adjust to
the optimal setting with the 4-pole magnet and then
with the 6- pole magnet again.
3Back Forward4
Instructions for Alignment KIT 105E CM23 GSIII 11
9 Go to cover page
1.Introduce
The alignment kit is designed for CPU controller to adjust the screening size, shift, geometric,color temperature,..etc
of monitor control function. and other function depend on your need.
2. Alignment environments :
- Windows 95 for alignment software (I2C-200.EXE and I2C-200.R00)
- Access Factory Mode of IBM C50R Monitor before adjustment
by using "I2C-200.EXE and I2C-200.R00".
3.Installation
3.1 The followings are necessary for Alignment KIT application.
- An Intel 486 (or above) PC or compatible, Windows 95
- Pattern generator or the other PC
- The 15-pin D-sub connector of the signal cable(3 rows) x2
- The 25 pin connector of the printer cable (2 rows)x1
- Alignment KIT of IBM C50R , Part number = 4822 310 11317 (= 4822 724 40881)
- I2C-200.EXE (3.5" Floppy Disk), Part number = 4822 711 00056 (= 4822 724 30290)
- I2C-200.R00 (3.5" Floppy Disk), Part number = 4822 711 00057 (= 4822 724 30300)
4. Connection, see figure as below.
Monitor - IBM C50R
To monitor - IBM C50R
I2C pattern for adjustments
To PC ( the other PC) To Printer (main PC,
or pattern generator with I2C-200.EXE)
(Alignment Kit : code number is 4822 310 11317)
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12 105E CM23 GSIII Instructions for Alignment KIT
9 Go to cover page
In "MS DOS environment", make a sub-directory "I2C-200" in your Hard Disk "C",
then copy "I2C-200.EXE" and "I2C-200.R00" into your sub-directory.
1. C:\MD I2C-200 , press "Enter" Fig. 1
2. C:\CD I2C-200 , press "Enter"
Bring up --> C:\I2C-200>
3. Insert disk 1 (I2C-200.EXE) into Drive A
4. C:\I2C-200>COPY A:\I2C-200.EXE , press "Enter"
5. Take disk 1 out from Drive A
Fig. 2
6. Put disk 2 (I2C-200.R00) into Drive A
7. C:\I2C-200>COPY A:\I2C-200.R00 , press "Enter"
8. C:\I2C-200>I2C-200 , press "Enter"
In "MS Windows 95" environment:
1. Open: C:\I2C-200\Setup.exe
(As Fig. 1)
2. Click "OK" of Fig.1, bring up "Fig. 2"
Fig. 3
3. Click "OK" of Fig. 2, bring up "Fig. 3"
4. Click "ICON" of Fig. 3, bring up "Fig. 4"
5. Click "OK" of Fig. 4, bring up "Fig. 5"
6. Double-click "ICON " of Fig. 5 to bring up
Main Menu of CPU controller as "Fig. 6".
Fig. 4
Fig. 5
1. Click the "Options", and then
point to "Command code setup..."
2. Click "Command code setup",
bring up Fig. 7.
Fig. 6
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Instructions for Alignment KIT 105E CM23 GSIII 13
9 Go to cover page
Fig. 7
Brightness/Contrast
*change the Max. value from 255 to
63 as below.
Brightness Max. value 63
Contrast Max. value 63
Disable sub-Contrast ----------------->
Disable OSD Contrast --------------->
Click "Size", bring up Fig. 8.
Change the Max. value of Vertical Size from "255" to "127"
Change the Max. value of Vertical Position from "255" to "127"
Fig. 8
<--------Disable Horizontal DC Shift
<--------Disable Vertical DC Shift
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14 105E CM23 GSIII Instructions for Alignment KIT
9 Go to cover page
Fig. 9
Click "Geometry", bring up Fig. 9.
Change the Max. value of
Corner Correction
from "31" to "15" ------------------------->
Fig. 10
Click "Effect", bring up Fig. 10.
Disable Horizontal Linearity----->
Disable Horizontal Focus---------->
Disable Vertical Focus------------->
Disable Horizontal Moire
Disable Vertical Moire
Fig. 11
Click "Miscellaneous", bring up Fig. 11.
Disable Volume---------------------->
Disable Mute on/off----------------->
Disable Language default--------->
Disable Degauss-------------------->
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Instructions for Alignment KIT 105E CM23 GSIII 15
9 Go to cover page
After setting of White, Size, Geometry and Effect,
1. Click "Save as", then bring up Fig. 12.
2. Fill in "File name", -- "104B.ccs" or "105S.ccs" --
3. Click "OK", then the default value of 104B or 105S will be saved to sub-directly "i2c".
The default values of 104B/105S are as below for Factory mode alignment.
size H Max. value 255 pincushion H.pin Max. value 63
V Max. value 127 Pin. bal. Max. value 15
shift H Max. value 255 Distortion parallel Max. value 15
V Max. value 127 Trapezoidal Max. value 15
Linearity Vert. lin. Max. value 15 Corner Max. value 15
Vert. LIn.Bal Max. value 15
Color
Brightness Max. value 63
Contrast Max. value 63
ABL Max. value 255
RGB gain RGB cutoff
RED Max. value 63 RED Max. value 255
GREEN Max. value 63 GREEN Max. value 255
BLUE Max. value 63 BLUE Max. value 255
Fig. 12
1. Click the "File", and then
point to "Load CCS".
Click "Load CCS", Bring up Fig. 13.
2. Click "105s.ccs or 104b.ccs".
Click "OK", then bring up the
default setting for alignment
as Fig. 6.
** NEXT TIME **
Load 105s.ccs or 104b.ccs
for Electrical Alignment directly.
Fig. 13
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