Acer G991 Schematic
CRT Monitor
Service Guide
Diamond View Model
1995SL
November 2000
Distributed by
Mitsubishi Electric Australia Pty. Ltd.
A.B.N. 58 001 215 792
348 Victoria Road
RYDALMERE NSW 2116
Australia
Telephone 1300 651 808
Copyright
Copyright ã 1996 by the Company. All rights reserved. No part of this publication may be
reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language or
computer language, in any form or by any means, electronic, mechanical, magnetic, optical,
chemical, manual or otherwise, without the prior written permission of the Company.
Disclaimer
The Company makes no representations or warranties, either expressed or implied, with respect to
the contents hereof and specifically disclaims any warranties, merchantability or fitness for any
particular purpose. Further, the Company reserves the right to reserve this publication and to make
changes from time to time in the contents hereof without obligation of the Company to notify any
person of such revision or changes.
ii
Section
Diamond View CRT Monitor
1995SL
Manual Contents
1. Engineering Specifications
2. Circuit Operation Theory
3. Alignment procedure
4. Trouble Shooting
5. Parts List
6. Schematic Diagrams
7. Assembly
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1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
Table of Contents
0. Introduction :.....................................................................................................................................3
1. ELECTRICAL CHARACTERISTICS ................................................................................................3
1.1 Power Supply.......................................................................................................................3
1.2 Signal Interface....................................................................................................................3
1.3 Scan Range.........................................................................................................................4
1.4 Video Performance..............................................................................................................4
1.5 Timings ................................................................................................................................4
2.ENVIRONMENT & RELIABILITY ......................................................................................................5
3.CRT CHARACTERISTICS ................................................................................................................5
4.FRONT OF SCREEN ........................................................................................................................6
4.1 Geometry.............................................................................................................................6
4.2 Sharpness Crispness...........................................................................................................6
4.3 Light Quality.........................................................................................................................6
4.4 Image Stability .....................................................................................................................7
5. USER CONTROLS...........................................................................................................................8
5.1 Basic....................................................................................................................................8
5.2 Advanced.............................................................................................................................8
6. MECHANICAL CHARACTERISTICS...............................................................................................8
6.1 Dimension............................................................................................................................8
6.2 Weight..................................................................................................................................9
6.3 Plastic ..................................................................................................................................9
6.4 Carton..................................................................................................................................9
7. Pallet & Shipment.............................................................................................................................10
7.1 Dimension............................................................................................................................10
7.2 Shipping Container ..............................................................................................................10
7.3 Air Transport Container .......................................................................................................11
8. CERTIFICATION..............................................................................................................................11
9. Appendix...........................................................................................................................................12
Table 1 - DDC Table..................................................................................................................12
Table 2 - CRT Blemish & Scratch Spec ....................................................................................21
Table 3 - OSD Menu..................................................................................................................21
Table 4- Geometry Fig...............................................................................................................22
Fig.1 Linearity Measurements
Fig.2 General Pincushion Measurements
Fig.3 Trapezoid Measurements
................................................................................22
................................................................23
.................................................................................24
1
1995SL CRT Monitor Service Guide
Table of Contents
Chapter 1 Engineering Specification
Fig.4 Picture Distortion & Phase Measurements
Fig.5 TCO 99 Pincushion Measurements
Fig.6 TCO 99 Barreling Measurements
Table 5 - TCO 99 Spec..............................................................................................................28
A. Ecology
B. CRT Display
.....................................................................................................................28
.............................................................................................................29
................................................................26
...................................................................27
.................................................25
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1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
0. Introduction :
The subject model is designed for a value line 19” color monitor. It has the following figures :
0.26mm dot pitch , short length CRT, 176MHz video bandwidth ,1600X1200 max resolution.
Low radiation TCO99 standard,
ISO 14000 certificated green design. (Refer Table 5)
Optional items : E2000 USB.
1. ELECTRICAL CHARACTERISTICS
1.1 Power Supply
Voltage Universal input full range 90~264VAC /47~63Hz
Input Current 90 ~ 264VAC 4.0 Arms
Power consumption On < 120 W max
DPMS Standby < 15 W
Suspend < 5W
Off < 5 W
Inrush Current 220VAC/50Hz 50 Amp peak
Leakage Current 264 VAC/50Hz < 3.5mA
Hi-Pot 1. 1500VAC, 100mA, 1
sec
2. Ground test : 30A,
1sec
Power cord Length : 1800 mm Color : Flint Gray
1.2 Signal Interface
Pin assignment 5V on Pin 9
Condition Spec
w/o damage
< 0.1 ohm
Condition
Spec
OK
N.A
9
9
9
LED : Green
9
LED : Amber
9
LED : Amber Blink
9
LED : Amber Blink
9
Cold start
9
9
(in-line test)
9
KC-003
OK
N.A
9
Remark
(in-lab test)
Remark
Video input Level / Impedance 700mV / 75 Ohm
Sync input Level TTL-Positive/Negative
Impedance 50 Ohm on H-sync cable 9
Signal Cable D-Sub 1.5mm +/- 20mm
BNC
Color Flint Gray
9
9
9
9
9
0.7μs<H-sync width<25%
of H period 2s<V-sync
width< 400μs
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1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
1.3 Scan Range
Horizontal 30 ~ 95 KHz
Vertical 50~ 160 Hz
1.4 Video Performance
Dot Rate 176 MHz
Max. Resolution 1600 x 1200
Rise time/Fall time 6ns
Video Ringing 10% max
Sag 5% max
Bandwidth -3db 176 MHz
DDC Version DDC1/2B
EDID Ver 1 ,Rev 2
1.5 Timings
Preset mode No. : 9 User mode No. : 20
Condition Spec
Spec
OK
N.A
9
9
OK: Positive performance
N. A.
: Not applicable for this set
OK
N.A
9
9
9
9
9
9
9
see table 1
9
Remark
Remark
Preset
VGA400 640x400 31.47KHz/70Hz
VGA480 640x480 31.47KHz/59.94Hz
6448A 640X480 37.5KHz/75Hz
6448B 640X480 43.269KHz/85Hz
SVGA4 800x600 46.88KHz/75Hz
SVGA3 800x600 48.09KHz/72.01Hz
SVGA5 800x600 53.67KHz/85Hz
Apple 16”
UVGA2 1024x768 56.476KHz/70.069Hz
UVGA7 1024x768 60.023KHz/75.029Hz
Super MAC 19 1024x768 60.24KHz/75Hz 9
UVGA8 1024x768 68.68KHz/85Hz
WS2 1280x1024 64.317KHz/60.392Hz
WS7 1280x1024 79.98KHz/75Hz
WS8 1280x1024 91.15KHz/85Hz
Resolution Fh (KHz) / Fv (Hz)
832x624 49.71KHz/74.533Hz
OK
N.A
9
9
9
9
9
9
9
9
9
9
9
9
9
9
Sync polarity H/V
-/+
-/-
+/+
+/+
+/+
+/+
+/+
+/+
VESA1600 1600x1200 93.75KHz/75Hz
VESA 1600X1200 81.25KHz/65Hz
9
9
+/+
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1995SL CRT Monitor Service Guide
2.ENVIRONMENT & RELIABILITY
Chapter 1 Engineering Specification
Condition Spec
Operation Temp./Humidity
Non- Operation Temp./Humi.
Altitude Operating condition 0~3048m (10,000ft)
Non-operating condition 0~12,192m (40,000ft)
Vibration Package, Non-Operating 5~26.6Hz/0.6G
50~500 Hz/1.5G
Un-package, Non-
Operating
Drop (With packing) PKG. 18.2~27.2 Kg Drop Height 61 cm
Electrostatic Discharge
Acoustical Noise < 40 dB/A
Power Line Transient
IEC801-2 standard Contact:8KV, Air:15KV
IEC801-4,IEC1000-4-4 Coupling clamp 0 ~ 4KV
IEC1000-4-5 (Surge)
IEC1000-4-12 (100KHz
+5 ~ +40℃/ 20~90% R.H.
-20~ +60℃/ 10~90% R.H.
5~100/0.015g2/Hz
Common:2KV,Differential:1KV
Common:3KV,Differential:1KV
OK
N.A
9
Non-condensing
9
Non-condensing
9
Without packing
9
With packing
9
26.6~50Hz/1.5G
9
9
100~200/-6db/oct
9
9
9
9
9
9
Remark
200~0.038g2/Hz
0.5~8KV tip table no
blanking
ringwave)
MTBF Demonstration 90% confidence level > 200,000 Hrs
MTBF Prediction
MIL-217F
> 40,000 Hrs
CRT Life 78% degradation > 10000 Hrs
9
Excluding the CRT
9
9
3.CRT CHARACTERISTICS
Spec
CRT Vender Philips Shadow mask
Technology FST
Coating Anti-glare/Anti-
OK
N.A
9
9
9
static/Anti-reflection
Dot pitch 0. 26m m
Phosphor P22
Light transmittance 52.3%
Viewable size >18”
Deflection angle 95 deg
9
9
9
9
9
Remark
Blemishes and scratches
1 trio missing,as approval
see table 2
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1995SL CRT Monitor Service Guide
4.FRONT OF SCREEN
Chapter 1 Engineering Specification
sheet
4.1 Geometry
Magnetic Environment Northern Hemisphere H = 0 + 0.05
V = +0.45 +
0.05
Southern Hemisphere H = 0 + 0.05
V = -0.45 +
0.05
Equatorial H = 0 + 0.05
V = 0 +
0.05
Size Hor. 360 + 4 mm
Ver. 270 + 4 mm
Centering Hor. & Ver. |A-B|,|C-D|< 4 mm
Geometric Distortion
Top/Bottom Barrel/pincushion
Side Barrel/pincushion
< 1.35 mm
1.8 mm
<
Hor./Ver. Trapezoid < 3.0mm
Tilt < 1.2 mm
Orthogonal < 2 mm
S-curve < 0.5 mm within 40mm
OK
N.A
9
9
9
9
9
9
9
9
9
9
9
9
Remark
Linearity Hor. & Ver. < 5 %
4.2 Sharpness
Crispness
“
Focus
Mis-convergence Center < 0.15 mm
Moire Over 18Ft-L no visible moire
Swing not permitted
Reverse character(white
background and black
characters) /20 Ft-L at ful l-white
Jitter DIN 66234 T2 < 0.1mm
4.3 Light Quality
Condition Spec
White Balance Full white center
(Brit. cut-off & Cont.
max.)
Purity W,R,G,B
X max-X min & Y max-Y min
e,w,m” at cut-off and
1280*1024@85Hz
resolution
A <
0.3mm ,B< 0.4mm
x = 0.283 +
y = 0.297 +
0.010
0.010
< 0.015
9
(Xmax-Xmin)/( Xmax+Xmin)*100
OK
N.A
9
9
9
9
9
OK
N.A
9
@ SVGA1280x1024
9
Remark
The distance of watch is
30cm from eyes t o screen
”
”
Remark
79.98KHz75Hz
“
6
MEA 1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
Color Tracking
Max Brightness with ABL
Max Brightness no ABL
Brightness Uniformit y
Brightness cut off
Full white pattern
3” Block
Full white pattern
Raster light O/P Bright./Cont. Max. 0.5 ~ 1.5Ft-L
Contrast ratio Max/Min 5:1
4.4 Image Stability
H/V regulation < 1 mm per side at cut-
x, y (nominal) + 0.015
30Ft-L(Cut-off)
40Ft-L (Cut-off )
70% (center to corner)
>
9
9
9
9
9
9
OK
N.A
9
Remark
“
“
“
“
“
“
off
Flicker No flicker
Ringing
No visible DY Hor. Video ringing
9
9
7
1995SL CRT Monitor Service Guide
5. USER CONTROLS
Chapter 1 Engineering Specification
5.1 Basic
Power Switch
Contrast
Brightness
H Size
H Position
V Size
V Position
Barrel/Pincushion
Parallelogram
Trapezoid
5.2 Advanced
OSD position
Color Gain
Corner
Function Spec
Function Spec
OK
N.A
9
9
9
9
9
9
9
9
9
9
OK
N.A
9
See Table 3
9
9
Remark
Remark
Pin-balance
Tilt
Color Temp. C1~C5
9300K,6500K,5500K,7100K,1150
0K
Manual Degauss
Recall
Languages 5 languages
Mis-Convergence adj.
Moire adj.
D-sub/BNC switch
9
9
9
9
9
9
9
9
9
6. MECHANICAL CHARACTERISTICS
6.1 Dimension
Spec
Bezel opening 324x 243 mm
Monitor w/o Stand W x H x D mm 455x 406.5 x 416 mm
OK
N.A
9
9
Remark
Monitor w Stand W x H x D mm 455x 476.5 x 416 mm
9
8
1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
Carton Box W x H x D mm 575 x 522 x 536 mm
Tilt and Swivel range Tilt : -5/+15 deg r ee
9
9
Swivel:- 45/ +45 degrees
6.2 Weight
Spec
Monitor (Net) 19 Kg
Monitor w
23 Kg
OK
N.A
9
9
Remark
packaging(Gross)
6.3 Plastic
Flammability UL 94-5V
Heat deflection To
UV stability
Resin PC+ABS
Texture RE-6625
Color Light Gray
6.4 Carton
Spec
75 ℃mini
Delta E<1.5 after 300Hr Xted
test
Spec
OK
N.A
9
9
9
9
9
9
OK
N.A
Remark
Remark
Color Kraft
Material A B Flute
Compression strength 610 KGF
Burst Strength 23 KGF/cm 2
Stacked quantity 5 Layers(max)
9
9
9
9
9
9
1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
7. Pallet & Shipment
7.1 Dimension
Transport Type Pallet A Pallet B Pallet C
Shipping Pallet Length 1150
Dimension(mm) Width 1072
Height 130
Air Transport Pallet Length 1072
Dimension(mm) Width 1150
Height 130
x
x
x
x
x
x
X
X
X
X
X
X
7.2 Shipping Container
Stowing Type Quantity of
products (sets)
(Every container) (Every Pallet) (Every Container)
20' 160 Pallet A: 16 Pallet A: 10
With pallet 40' 352 Pallet A: 16 Pallet A: 22
Quantity of Products
(sets)
Pallet B:
x Pallet B: x
Quantity of pallet
(sets)
Pallet B: X Pallet B: X
20' 160 X X
X X
Without pallet 40' 352 X X
X X
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1995SL CRT Monitor Service Guide
7.3 Air Transport Container
Chapter 1 Engineering Specification
Container Type Quantity of products
(sets)
(Every container)
Container
3048 * 2286 * 2438
Pallet B: 8 Pallet B: 2
80
Quantity of Products
(sets)
(Every Pallet)
Pallet A: 16 Pallet A: 4
Quantity of pallet
(sets)
(Every Container)
8. CERTIFICATION
Condition Spec
Environment Green design Doc. 715-C49
OK
N.A
9
ISO14000
Remark
Requirement
Blue Angel German Standard
E-2000 Switzerland
NUTEK Swedish Standard
EPA USA Standard
EN61000-3-2
9
9
Option
9
9
9
Harmonics
TCO92/95
TCO99
PC-Monitor Microsoft Windows PC98/99
DPMS VESA
DDC 1/2B Version 3.0
USB Internal
Safety UL (USA) UL 1950 3rd edition
CSA (Canada) C22.2 No. 950-M95
DNSF EN60950
IEC950 +A1+A2+A3+A4
9
9
9
9
9
9
Option
9
9
9
9
EN60950 +A1+A2+A3+A4
9
11
1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
73/23/EEC
CB (Nordics)
TUV/GS EN60950
CCIB (China)
EIAJ/JEIDA (Japan)
NOM (Mexico)
IAA (Korea)
EMC CE Mark 89/336/EEC
FCC (USA) Class B
EN55022 Class B
CISPR 22 Class B
VCCI (Japan) Class B
BCIQ (Taiwan)
C-Tick (Australia) AS3548
RRL (Korean)
X- Ray Requirement DHHS (21 CFR) USA X- Ray Standard
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
DNHW
PTB German X- Ray standard
MPRII
MPRIII
Ergonomics ZH1/618 German ergonomic
ISO 9241-3 -7 & 8
9
9
9
9
9
9
9. Appendix
Table 1 - DDC Table
DDC1/2B Table
Address Data Description
00 00
01 FF
02 FF
12
1995SL CRT Monitor Service Guide
03 FF Header
04 FF
05 FF
06 FF
07 00
08 06 ID Manufacturer Name = MEA
09 09
0A 03 ID Product Code = 1995SL
0B 99 (Vender Assigned code)
0C 00 ID Serial Number
0D 00
0E 00
Chapter 1 Engineering Specification
0F 00
10 * Week of Manufacture (0-53),use 0 if n/a
11 * Year of Manufacture (year - 1990)
12 01 EDID version
13 03 Revision
14 6C Video Input Define
15 24 Max. H. Image Size 360 (cm)
16 1B Max. V. Image Size 270 (cm)
17 A9 (gamma*100) - 100 , gamma = 2.75 (Data in Note 3)
18 EA DPMS
19 2C Red Green Bits Rx1Rx0Rxy1Ry0Gx1Gx0Gy1Gy0
1A 24 Blue White Bits Bx1Bx0By1By0Wx1Wx0Wy1Wy0
1B A0 Red x bit9-2
1C 56 Red y bit9-2 (Data in Note 3)
1D 47 Green x bit9-2
1E 9A Green y bits9-2
1F 26 Blue x bit9-2
20 12 Blue y bit9-2
21 48 White x bit9-2
22 4C White y bit9-2
Address Data Description
23 AF Established Timing I
13
1995SL CRT Monitor Service Guide
24 CF Established Timing II
25 00 Established Timing III
26 A9 Standard Timing Identification
27 45 #1 1600x1200 / 65Hz
28 45 #2 800x600 / 85Hz
29 59
2A 61 #3 1024x768 / 85Hz
2B 59
2C 01
2D 01
2E 01
2F 01
Chapter 1 Engineering Specification
30 01 #6
31 01
32 01 #7
33 01
34 01 #8
35 01
36 86 Detailed Timing Description # 1
37 3D WS8 1280x1024 91.15k/85Hz
38 00
39 C0
3A 51
3B 00
3C 30
3D 40
3E 40
3F A0
40 13
41 00
42 68
43 0E
44 11
45 00
14
1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
46 00
47 00
Address Data Description
48 00 Detailed Timing Description # 2
49 00
4A 00
4B FC Monitor Name
4C 00 MEA 1995SL
4D 41
4E 43
4F 45
50 52
51 20
52 47 G
53 39 9
54 39 9
55 31 1
56 0A
57 20
58 20
59 20
5A 00 Detailed Timing Description # 3
5B 00
5C 00
5D FD Range Limit: Vertical refresh rate 50Hz~160Hz
5E 00 Horizontal frequency 30KHz~95KHz
5F 32
60 A0
61 1E
62 5F
63 11
64 00
65 0A
66 20
15
1995SL CRT Monitor Service Guide
67 20
68 20
69 20
6A 20
6B 20
Chapter 1 Engineering Specification
16
1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
Address Data Description
6C 00 Detailed Timing Description # 4
6D 00
6E 00
6F FF Serial number.
70 00 PS: Example :
71 32 Monitor serial number in description from 71 to 75 is 23456
72 33 ASCII data string in descriptor until 0A end.
73 34 20 is mean Null string.
74 35
75 36
76 0A
77 20
78 20
79 20
7A 20
7B 20
7C 20
7D 20
7E 00 Extension Flag
7F * Check sum
Serial number format : MEA
Bar code ID of model name : 7C
17
1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
Note 1
Bit Description
7 Analog / Digital Input : Defines usage of the rest if the byte as "analog input" or digital
input". Analog=0, Digital=1 . If input is described as analog, the following definitions apply to
bits 6-0.
6:5 Signal Level Standard (6:5) : Refer to the following bit definitions. Identified by the level of
reference white volts above blank, followed by the level of the sync tips in volts below
blank.
Bit 6
Bit 5 Operation
0 0 0.700V/0.300V (1.000V p-p)
0 1 0.714V/0.286V (1.000V p-p)
1 0 1.000V/0.400V (1.400V p-p)
1 1 0.700V/0.000V (0.700V P-P)
4 Setup: If set, the display is set to expect a blank-to-black setup or pedestal per the
appropriate signal level standard.
3:0 Sync Inputs (See Bit Operation below)
3 Separate Sync
2 Composite Sync (on H Sync line)
1 Sync on Green Video
0 Serration of the V.Sync Pulse is required when composite sync or sync-on-
green video is used
18
1995SL CRT Monitor Service Guide
Note 2
Bit 7 Stand-by
Bit 6 Suspend
Bit 5 Active off
Bit 4-3 Display Type
0,0 - Monochrome/gray scale display
0,1 - RGB color display
1,0 - Non-RGB multicolor display (example:RGY)
1,1 - Undefined.
Bit 2-0 Reserved. Set at 00h until defined.
Chapter 1 Engineering Specification
Note 3
CRT Vender Red (x/y) Green (x/y) Blue (x/y) Gamma
Philip 0.615/0.350 0..290/0.610 0.155/0.065 2.75
Hitachi 0.625/0.333 0.285/0.605 0.150/0.065 2.76
Matsushita 0.535/0.350 0.285/0.605 0.152/0.068 2.90
CRT vender 17 19 1A 1B 1C 1D 1E 1F 20 21 22
Philips AF 64 A4 9D 59 4A 9C 27 10 48 4C
Hitachi B0 0F 64 A0 57 48 9A 26 10 48 4C
Matsushita BE DF D4 88 55 48 9A 26 11 48 4C
19
1995SL CRT Monitor Service Guide
Note 4
Byte 1 bit Established Timings 1 Source
7 640*400 @ 70Hz (720x400) (VGA, MEA)
6 720*400 @ 88Hz (XGA2, MEA)
5 640*480 @ 60Hz (VGA, MEA)
4 640*480 @ 67Hz (Mac II, Apple)
3 640*480 @ 72Hz (VESA)
2 640*480 @ 75Hz (VESA)
1 800*600 @ 56Hz (VESA)
0 800*600 @ 60Hz (VESA)
Byte 2 bit Established Timings II
7 800*600 @ 72Hz (VESA)
Chapter 1 Engineering Specification
6 800*600 @ 75Hz (VESA)
5 832*624 @ 75Hz (Mac II, Apple)
4 1024*768 @ 87Hz (interlaced) (MEA)
3 1024*768 @ 60Hz (VESA)
2 1024*768 @ 70Hz (VESA)
1 1024*768 @ 75HZ (VESA)
0 1280*1024 @ 75HZ (VESA)
Byte 3 bit Manufacturer's Timings Manufacturer's Specified Timing
7 1152*870 @ 75Hz (Mac II, Apple)
6 Reserved
5 Reserved
4 Reserved
3 Reserved
2 Reserved
1 Reserved
0 Reserved
20
1995SL CRT Monitor Service Guide
Chapter 1 Engineering Specification
Table 2 - CRT Blemish & Scratch Spec
The following criteria is applied to high-contrast blemishes.
Blemishes
Zone A Zone B
A 1 trio 0 1 1 --- --B (1) 0 0 0 --- ---
C (2) 1 2 2 --- 50
(3) 1 2 2 --- 20
D 1 dot
Red 5 4
Blue 5 4
(1) 3 or more consecutive same color phosphor dots.
(2) 2 consecutive same color phosphor dots.
(3) 2 consecutive different color phosphor dots.
Green 4 2
Allowable No. of Blemishes Allowable
Minimum
Separation
Zone
A
Zone
B
Total
(Zones A & B )
10
50
20
Table 3 - OSD Menu
Please refer to Release 001-C01
21
1995SL CRT Monitor Service Guide
X5
Table 4- Geometry Fig.
Fig.1 Linearity Measurements
X1 X2 X3 X4 X6 X7 X8 X9 X10X11 ~ X18
Y0
+ + + + + + + + + + + +
Y1
+ + + + + + + + + + + +
Y2
+ + + + + + + + + + + +
Y3
+ + + + + + + + + + + +
Y4
+ + + + + + + + + + + +
Y5
+ + + + + + + + + + + +
Y6
+ + + + + + + + + + + +
Y7
+ + + + + + + + + + + +
Y8
+ + + + + + + + + + + +
Y9
+ + + + + + + + + + + +
Y10
+ + + + + + + + + + + +
Y11
+ + + + + + + + + + + +
Y12
+ + + + + + + + + + + +
Y13
Chapter 1 Engineering Specification
Xmax - Xmin
------------------- X 100% < 5%
Xmax + Xmin
Ymax - Ymin
------------------- X 100% < 5%
Ymax + Ymin
22
1995SL CRT Monitor Service Guide
Q
Fig.2 General Pincushion Measurements
Chapter 1 Engineering Specification
Amm
a1
P
Bmm b1
a2
S
b2
R
A, B represented as display area width and height
Top/Bottom Pincushion = (a1 or a2)
Side Pincushion = (b1 or b2)
Substituted A by (PS + QR)/2
B by (PQ + RS )/2
23
1995SL CRT Monitor Service Guide
Fig.3 Trapezoid Measurements
2.5
Chapter 1 Engineering Specification
2.5
2.5
A
B
2.5
2.5
D
C
2.5
2.5
2.5
* Each of the 4 corners of picture shall fall within the relevant area (F) illustrated up (hatched)
* ABCD is the picture outlines.
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