ViewSonic VPW505, VPLSM24288-1W Schematic

Service Manual

ViewSonic VPW505

ModelNo.VPLSM24288-1W

50" XGA Plasma Panel Display

(VPW505_SM_708 Rev. 1a Jun_ 2003)

ViewSonic ® 381 Brea Canyon Road, Walnut, California 91789 USA - [phone]

Copyright

¤

Copyright
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 ViewSonic Corporation.

Disclaimer

ViewSonic makes no representations or warranties, either expressed or implied, with respect to the contents
hereof and specifically disclaims any warranty of merchantability or fitness for any particular purpose.
Further, ViewSonic reserves the right to revise this publication and to make changes from time to time in the
contents hereof without obligation of ViewSonic to notify any person of such revision or changes.

Trademarks

ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.

2003 by ViewSonic Corporation. All rights reserved. No part of this publication may be

Revision History

Revision Date Description Of Changes Approval

1

a

6/06/03 Initial Release - DCN3574 J. Wu

CONTENTS

1. IMPORTANT SAFETY PRECAUTIONS..……….1.1

2. SPECIFICATION….......................................2.1-2.10

3. FACTORY & ELECTRONIC ADJUSTMENT..3.1-3.2

4. BLOCK DIAGRAM………………...................4.1- 4.6

5. TROUBLE SHOOTING GUIDES…………...5.1 - 5.6

6. SCHEMATIC DIAGRAM…………………….6.1 - 6.22

7. P.C.BOARD TOP VIEW….…………………7.1 - 7.11

8. RECOMMENDED SPARE PARTS LIST…..8.1 - 8.3

9. EXPLODED VIEW………………….………………9.1

10.PACKING OF THE LIST…………………………10.1

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IMPORTANT SAFETY PRECAUTIONS Ver1.0

1. Before return ing an instrument to the customer,

always make a saf ety check of the entire instrument,

including, but not limited to, the following items.

a.

Be sure that no built-in protective devices are defective and/or have been defeated during servicing. (1)
Protective shields are provided on this chassis to protect both the technician and the customer. Correctly
replace all mis sing protec tive sh ields, including an y removed f or ser vicing con venienc e. (2) W hen reins talling
the chassis and/or other assembly in the cabinet, be sure to put back in place all protective devices, including,
but not limited to, nonmetallic control knobs, insulating fish papers, adjustment and compartment
covers/shields, and is olation res istor/capacit or networks.

Do not operate this instrument or permit it to be

operated without all protective devices correctly installed and functioning.

b.

Be sure that there are no cabinet openings through which an adult or child might be able to insert their

fingers and contact a ha zardous voltage, Such opening inc lude, but are not lim ited to, (1) spac ing between
the picture tube and the c abinet mask , (2) excessively wide ca binet ventilation sl ots, and (3) an improper ly
fitted and/or incorrectly secured cabinet back cover.

c. Leakage Current Hot Check

—

—With the instr ument completely reas sembled, plug the AC line cord directly

——

into a 120V AC out let . (Do not use an isolatio n tr a nsformer during this tes t.) Us e a l eakage current tester or a
metering system that com plies with American Nati onal Standards Institutes (ANSI) C101.1 Leakage Cur rent
for Appliances and U nderwriters Laboratories ( UL) 47 8 . W ith the ins tr ument AC switch firs t in t he O N pos it io n
and then in the OFF position, m easure from a known earth ground (metal water pipe, conduit, etc.) to all
exposed metal parts of the instrument (antennas, handle bracket, metal cabinet, screw heads, metallic
overlays, control sh afts, etc.), especially any exposed m etal parts that offer an electrical return path to th e
chassis. Any cur rent m easured m us t not ex cee d 3.5 m illiam p. Rev erse t he ins tr um ent power cord plu g in the
outlet and repeat test.

ANY MEASUREMENTS NOT WITHIN T HE LIMITS SPECIFIED HEREIN INDIC ATE
A POTENTIAL SHOCK HAZARD THAT MUST BE ELIMINATED BEFORE RETURNING THE
INSTRUMENT TO THE CUSTOMER.

AC Leakage Test

DEVICE
UNDER

TEST

TEST ALL
EXPOSED METAL
SURFACES

3. WIRE CORD

ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED)

LEAKAGE

CURRENT

TESTER

+ -

(READING

SHOULD NOT

BE ABOVE

3.5mA)

EARTH

GROUND

2.

Read and comply with al l caution and s afety-re lated notes on or inside th e Mon itor cabinet, on th e Project ion

Monitor chassis, or on the picture tube.

3. Design Alteration Warning

—

—Do not alter or add to the mechanical or electrical design of this unit. Design

——

alterations and additio ns, including , but not limited to, circuit modif ications and th e addition of the item s such
as auxiliary audio and/or video output connections might alter the safety characteristics of this Projection
Monitor and create a hazard to the user. Any design alterations or additions will void the manufacturer’s
warranty and will make you, the service, responsible for personal injury or property damage resulting
therefrom.

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1-1

IMPORTANT SAFETY PRECAUTIONS Ver1.0

4. Hot Chassis Warning

AC power cord and may be safely serviced without an isolation transformer only if the AC power plug is
inserted so that the c hassis is c onnected to the gr ound side of the AC power so urce. To confirm that the AC
power plug is inserted correctly, with an AC voltm eter measure between the chassis and a known earth
ground. If a voltage read in g in ex c es s of 1.0V is o bta in ed, r emove and reinsert t he AC po wer pl ug i n op pos it e
polarity and again m easure the voltage potent ial between the chass is and a known earth gr ound. b. Some
Monitor chassis norm all y have 85V AC (RMS.) , bet ween c hassis a nd ear th gr oun d regard less of the A C plug
polarity. These chassis can be safely service d only with an isolation transformer inserted in the power line
between the receiv er and the AC power source, for both personnel a nd test equipm ent protection.
Projection Monitor chass is have a secondary ground system s in addition to the main chassis ground. T his
secondary ground system is not isolated from the AC power line. The two ground system are electrically
separated by insulating material that must not be defeated or altered.

5.

Observe original lead dress. Take extra care to assure correct lead dress in the f ollowing areas:
sharp edges, b. near thermall y hot parts—be sure that le ads and components do not touch thermall y hot

c.

parts,
out-of-place, or fr ayed wiring. Do not chan ge spacing bet ween components, an d between com ponents and
the printed-circuit board. Check AC power cord for damage.

6.

Components, parts, and/or wiring that appear to have overheated or are otherwise damaged should be
replaced with components, parts, or wiring that meet original specifications. Additionally, determine the
cause of overheating an d/or dam age and, if neces sar y, take corrective action to rem ove any pote ntial saf ety
hazard.

7. PRODUCT SAFETY NOTICE

characteristics som e of which are often not evident from visual ins pection, nor can the protection they give
necessarily be ob tained b y replacin g them with com ponents rated for higher voltage, wattag e, etc. Parts th at
have special safety characteristics are identified in this service data by shading with a mark on
schematics and b y shading or a ＊ mark in the parts l ist. Use of a substi tute repl acem ent part that d oes not

have the same safety characteristics as the recommended replacement part in this service data parts list
might create shock, fire, and/or other hazards.

the AC supply,

a.

————

Some Monitor chassis are electrically connec ted directly to one conduc tor of the

d.

high voltage,

—

—Many Monitor electrical and mechanical parts have special safety-related

——

e.

antenna wiring. Always inspect in all areas for pinched,

c.

a.

Some

near

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1-2

SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

1. SCOPE:
These specifications describe all the characteristics of the 50 inch color monitor.

2. ELECTRICAL REQUIREMENTS:

2.1. Display panel: Specification
a. Screen size Diagonal 50 inch

b. Aspect ratio 16:9 wide
c. Number of pixels 1366(Horizontal, RGB Trio ) X 768(Vertical)pixels
d. Pixel Pitch 0.81mm X 0.81mm
e. Luminance 620cd/m
f. Chromatically

2.2. Power Source:
a. Input voltage 100 ~ 240 Vac , 50 / 60 Hz

b. Input current 5.0 A
c. Inrush current 60 A p-p/20ms Max.
d. Power consumption

x=0.270
at center block white pattern 100% (mosaic).
x=0.280
at center block white pattern 100% (mosaic).
x=0.332
at center block white pattern 100% (mosaic).
x=0.313
at center block white pattern 100% (mosaic).

550 Watts MAX ( at 110Vac/all white pattern)

2

,at APL13%

0.03, y=0.270

±±±±

0.03, y=0.300

±±±±

0.03, y=0.338

±±±±

0.03, y=0.329

±±±±

0.03(color temperature HIGH )

±±±±

0.03(color temperature MID )

±±±±

0.03(color temperature LOW )

±±±±

0.03(color temperature 6500D )

±±±±

e. Stand-by & DPMS 5 Watts Max. (at 110Vac)

2.3. Input Signal:

2.3.1 Connector Type:

2.3.2 Video/S-Vi deo Signal:
a. Type Analog

b. Polarity Positive
c. Amplitude
d. Frequency

e. Input impedance 75 ohms

2.3.3 COMPONENT Signal:
a. Type Analog

b. Polarity Positive

c. Amplitude AV: 1Vp-p (with sync)

d. Frequency

Y/CB/CR

Y/PB/PR: HDTV

RCA Jack for audio, video Y/C
6 pin Din S-terminal
9 pin D-SUB
15 pin D-SUB
24 pin DVI

Video 1Vp-p , (priority S-Video) Y=1Vp-p C=0.286Vp-p
H: 15.734KHz V: 60Hz(NTSC)
H: 15.625KHz V: 50Hz(PAL)

S-Video: Y: 1Vp-p ,C: 0.286Vp-p

H: 15.734KHz ,V: 60Hz (NTSC)
H: 15.625KHz ,V: 50Hz (PAL)

1. 31KHz/60Hz (480P)

2. 45KHz/60Hz (720P)

3. 33KHz/60Hz(1080I)

and Y/PB/PR

B/CR

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SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

2.3.4 RGB Signal:

a. Type TTL
b. Polarity Positive or Negative
c. Amplitude RGB: 0.7Vp-p
d. Frequency

2.3.5 DVI Signal:

H: support to 31K~91KHz
V: support to 50~85Hz

a. Type
b. Polarity
c. Frequency

2.3.6 Audio Signal: Analog 500mV rms /more than 22Kohm

2.3.7 Pin Assignments For D-SUB Connector (In / Loop Out):

Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment

1 RED 6 RED GND 11 GND
2 GREEN 7 GREEN GND 12 SDA
3 BLUE 8 BLUE GND 13 H-SYNC
4 GND 9 NC 14 V-SYNC
5 GND 10 GND 15 SCL

2.3.8 Pin Assignments For 24 Pin DVI Connector (Digital Only):

Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment

1 TMDS Data 2- 9 TMDS Data 1- 17 TMDS Data 0­2 TMDS Data 2+ 10 TMDS Data 1+ 18 TMDS Data 0+
3 TMDS Data 2/4

Shield
4 TMDS Data 4- 12 TMDS Data 3- 20 TMDS Data 5­5 TMDS Data 4+ 13 TMDS Data 3+ 21 TMDS Data 5+
6 DDC Clock 14 +5V Power 22 TMDS Clock Shield
7 DDC Data 15 Ground (For +5V) 23 TMDS Clock +
8 No Connect 16 Hot Plug Detect 24 TMDS Clock -

Digital
Positive or Negative
H: support to 31K~68KHz
V: support to 50~85Hz

11 TMDS Data 1/3 Shield 19 TMDS Data 0/5 Shield

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SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

2.3.9 MODE LIST FOR RGB/DVI :

Mode No Resolution

(Hz) (K Hz) (Hz) (TTL) (TTL) (MHz)
1

2
3
4
5
6
7

8

9
10
11
12
13
14
15

1280(SXGA)

◎◎◎◎

16

1280(SXGA)

◎◎◎◎

18
19
20
21
22
23
24 640 x 480 67 35.00 66.67 - - 30.240
25 832 x 624 75 49.73 74.55 - - 57.283
26 1152 x 870 75 68.68 75.06 - - 100.000
28 1360 x 768 60 47.368 59.960 - + 72.000
30 1280 x 960 60 60.00 60.00 + + 108.000

31

◎◎◎◎

640(VGA)
640(VGA)
640(VGA)

640(VGA)
800(SVGA)
800(SVGA)
800(SVGA)
800(SVGA)

800(SVGA)
1024(XGA)
1024(XGA)
1024(XGA)
1024(XGA)

1280(SXGA)

720(DOS)

640(VGA)

1280(HDTV)
1920(HDTV)

640(VGA)

852(WGA)

1280 x 960 85 85.938 85.002 + + 148.500

480

××××

480

××××

480

××××

480

××××

600

××××

600

××××

600

××××

600

××××

600

××××

768

××××

768

××××

768

××××

768

××××

1024

××××

1024

××××

1024

××××

400

××××

480

××××

720P

××××

1080I

××××

350

××××

480

××××

Refresh

Rate

60 31.5 59.94 - - 25.175
72 37.9 72.81 - - 31.500
75 37.5 75 - - 31.500
85 43.3 85.01 - - 36.000
56 35.1 56.25 + + 36.000
60 37.9 60.317 + + 40.000
72 48.1 72.19 + + 50.000
75 46.9 75 + + 49.500

85 53.7 85.06 + + 56.250
60 48.4 60.01 - - 65.000
70 56.5 70.07 - - 75.000
75 60.0 75.03 + + 78.750
85 68.7 84.99 + + 94.500
60 63.98 60.02 + + 108.00
75 79.98 75.03 + + 135.00
85 91.15 85.02 + + 157.50
70 31.46 70.08 + - 28.322
50 31.50 50.00 - - 25.175
60 45.00 60.00 + + 74.250

60(I) 33.75 60.00 + + 74.250

70 31.50 70.00 - - 25.175
60 31.72 60.41 - - 30.000

Horizontal

Frequency

Vertical

Frequency

Vertical

Sync

Polarity

Horizontal

Sync

Polarity

Dot rate

Attention

2.3.10 Y/P

B/PR

Mode No Resolution Refresh Rate

1
2
3

: For DVI is not supported.

◎◎◎◎

For Component:

640
1920
1280

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480P

××××

1080I

××××

720P

××××

60
60
60

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SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

2.4. Display Performance Requirements:
The data of display performance are measured based on the following
conditions unless otherwise specified.

a. Ambient temperature
b. Warm up period 30 minutes Min.

c. Line input voltage : 100 Vac ~ 240 Vac (50 / 60 Hz)
d. Viewing distance Distance from screen is 81 cm
e. Display mode Tes t with window white pattern mode if not specified.
f. Brightness condition Press recall bottom to set default brightness

2.4.1 Maximum Resolution: Support to 1280 x 1024

2.4.2 Horizontal Size (Standard) 1106.5
Vertical Size (Standard) 622.1

2.4.3 Maximum Brightness Level: Timing Mode 1

a. 100% center block white

pattern(mosaic)

b. Raster background

2.5. Operation:
Main unit button

IR Remote Control

25

5

±±±±

℃℃℃℃

8 mm (for mode 1

±±±±

8 mm (for mode 1

±±±±

More than 30FL
(while pressing recall button to set default brightness)
Less than 0.4FL
(while pressing recall button to set default brightness)

Main power switch (power ON /OFF)
Power ON/OFF
Input Select (TV -> AV1 ->AV2[S] -> COMPONENT 1 ->
COMPONENT 2-> RGB -> DVI->TV run in circle)
Menu key -,+
Adjustment -,+
Power on/off
MUTE
Display
Input Select (same as Main unit button)
Volume -,+
Wide :

TV/AV1/AV2[S]/COMPONENT 1/2
PANORAMA/4:3/16:9
(ZOOM1/ZOOM2/ZOOM3/OFF For 16:9 Only)

Analog RGB input : 4:3/16:9
Menu -,+
Adjustment -,+
RECALL
PIP ,SOURCE,SWAP,POSITION
USE FOR TV MODE:
V-CHIP

FAV.CH,FAV.SET,QV,CCD,MTS,CH LOCK,

SLEEP TIMER,

Number Select, CH

DIRECT KEY:
POWER ON,POWER

OFF,RGB,TV,AV1,AV2,COMPONENT1/2,DVI

SET

////

〜〜〜〜

〜〜〜〜

31)

31)

▲▼

▲▼

▲▼▲▼

input:

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SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

2.5.1Adjustable Items
TV /AV1 /AV2[S] /

COMPONENT 480I

COMPONENT

input

480P/720P/1080I

Analog RGB input

DVI input

input

PICTURE:
Input Source, Brightness, Contrast, Color, Tint, Sharpness
Color Temperature, Clock Phase, Screen Wide, Zoom
SOUND:
Bass, Treble, Surround, BBE, Bass Extension, Volume,
INNER SPK, Audio Output
PIP:
Source, Position, Swap
POP:
Source, Screen Rate, Swap
TV:
Channel, Channel Status, MTS, CCD, V-CHIP, Ch Search,
Tuner Source, Background
OTHER:
OSD Timeout, OSD Brightness, OSD Background, Sleep,
Power Saving(these mode is not use)
PICTURE(same as TV/AV1/AV2[S]/COMPONENT 480I input )
SOUND(same as TV/AV1/ AV2[S]/COMPONENT 480I
PIP/POP(this mode is not use)
TV(same as TV/AV1/AV2[S]/COMPONENT 480I
OTHER(same as TV/AV1/AV2[S]/COMPONENT 480I
PICTURE:
Input Source, Brightness, Contrast, V-center, V-size,
H- position, H-width, Color Temperature, Clock Phase
SOUND(same as TV/AV1/AV2[S]/COMPONENT 480I
PIP/POP(this mode is not use)
TV(same as TV/AV1/AV 2[S]/COMPONENT 480I input )
OTHER:
OSD Timeout, OSD Brightness, OSD Background, Sleep,
Power Saving
PICTURE:
Input Source, Brightness, Contrast, V-center, V-size, H­position, H-width, Color Temperature
SOUND(same as TV/AV1/AV2[S]/COMPONENT 480I
PIP/POP(this mode is not use)
TV(same as TV/AV1/AV2[S]/COMPONENT 480I
OTHER:
OSD Timeout, OSD Brightness, OSD Background, Sleep,
Power Saving

input )

input )

input )

input )

input )

input )

3. DIMENSIONS: Without/Stand With/Stand
Width

Height
Depth

1256mm

762 mm

107.5mm

1256mm
810mm
300 mm

3.1. Package Dimensions:
Width 1436 mm

Height 1125 mm
Depth 470 mm

3.2. Weight:
Net weight 103.6lbs/47 Kgs (w/o stand) 108lbs/ 49Kgs (w/ stand)

Gross weight 132.24lbs/60 Kgs

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SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

4.ENVIRONMENT

4.1. Operating:
Temperature

Relative humidity 20~80%
Pressure 800~1114 hpa

4.2. Non-Operating:
Temperature

Relative humidity 20~90%
Pressure 700~1114 hpa
Vibration X/Y/Z, 0.5G/10~55Hz(sweep), 10 minutes

4.3. Acoustics:

(IHF A-weighted 1meter) 50dB Max.

5. SOUND:
a. Residual hum (at volume min)

b. Practical max. Audio output (at 10% THD max.)

1.0vp-p 1K Hz input 5W +5W Max. /12 ohm
c. Sound distortion (at 250 mw 1K Hz) 1% Max.
d. Audio output (input at 1.4V
e. Max. hum (at volume max)
f. Sensitivity (at volume max. O/P 1W)

at 1KHz AV Input

g. Audio Fidelity (1KHz 0dB,corrected for emphasis characteristics)

WOOFER ON 60Hz
10KHz
BBE ON 60Hz
10KHz
WOOFER & BBE OFF 100Hz
10KHz

0~40

-20~50

)

P-P

(32~104

℃℃℃℃

℃℃℃℃

℉℉℉℉

)

500

W Max.

μμμμ

1.0 V

≧≧≧≧

1000

μμμμ

150mV

P-P

W Max.

3dB

±±±±

11dB
4dB

±±±±

6dB

±±±±

8dB

±±±±

-1dB

-1dB

3dB

±±±±

3dB
3dB
3dB

3dB

±±±±

3dB

±±±±

6. RF

6.1 RF Sensitivity (Peak)
VHF CH 2 ~ CH 13 30dB Max.

UHF CH 14 ~ CH 69 30dB Max.
CATV CH A-5 ~ CH W+29 30dB Max.

6.2 AFT Pull-In Range
VHF CH 2 ~ CH 13

UHF CH 14 ~ CH 69
CATV CH A-5 ~ CH W+29

6.3 Picture IF Rejection
VHF CH 2 ~ CH 13 50dB Min.

UHF CH 14 ~ CH 69 50dB Min.
CATV CH A-5 ~ CH W+29 50dB Min.

6.4 Picture Image Rejection
VHF CH 2 ~ CH 13 40dB Min.

UHF CH 14 ~ CH 69 35dB Min.
CATV CH A-5 ~ CH W+29 35dB Min.

0.6MHz Min.

±±±±

0.6MHz Min.

±±±±

0.6MHz Min.

±±±±

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SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

6.5 AGC Characteristics
AGC Figure Of Merit 50dB Min.

RF signal range in which video at PDP drops 6 dB from output level obtained
with 100mV input.

6.6 RF AGC Cut In Level

6.7 FM/AM Rejection (100mV at SIF input) 14dB min

6.8 Noise Limits Sensitivity VHF 45dB max

7. Reliability Requirement:
The MTBF needs 20000hrs under operation 25

8. REGULATORY REQUIREMENTS:

8.1 Safety Requirement:
a. UL Safety of information technology equipment including

electrical business equipment

b. CSA

c. TUV

8.2 Emission Requirement:
The unit shall meet the EMI limits in all screen modes. For EMI testing, the unit must be failed
with the screen pattern consisting of scrolling capital “H” characters also the brightness
contrast will be adjusted to max. Level.

Safety of information technology equipment including
electrical business equipment

55dB

UHF 49dB max

5

(half luminosity, motion picture)

±±±±

℃℃℃℃

2dB

±±±±

a. FCC class B part 15

8.3 Transit test

a. Drop Test 200mm max.

b. Vibration Test

1. Forward and backward

2. Right and left

3. Up and down

8.4 Power Management:

Mode H-sync V-sync Video Power dissipation
Normal Pulse Pulse Active Normal power
Stand-by No pulse No pulse No video Power off

This Plasma display is Energy star compliant when used with a computer equipped with DPMS.

Note: The power indicator LED color is green in normal state, yellow in stand-by and

power saving state.

9. VIDEO

Pulse No pulse Power saving

No pulse Pulse

30 minutes 1000 c.p.m
30 minutes 1000 c.p.m
30 minutes 1000 c.p.m

Blanked Less than 5 watts

9.1 Video Signal Output
(input signal at 1.0 Vp-p

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0.2Vp-p)

±±±±

2-7

1.0 Vp-p

0.2Vp-p

±±±±

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SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

APPENDIX A :
Preset Timing Chart

Item Description:

A Total time
B Active display area including borders
C Active display area excluding borders
D Left/Top border
E Right/bottom border
F Blanking time

G Front porch

H Sync-width

I Back porch

Mode No 1 2 3 4 5 6 7 8 9
Resolution
&
Refresh Rate
Pixel Clock 25.175 31.500 31.500 36.000 36.000 40.000 50.000 49.500 56.250 MHz
Horizontal visible 640 640 640 640 800 800 800 800 800 Dots
Horizontal total 800 832 840 832 1024 1056 1040 1056 1048 Dots
Horizontal front porch 16 24 16 56 24 40 56 16 32 Dots
Horizontal sync 96 40 64 56 72 128 120 80 64 Dots
Horizontal back porch 48 128 120 80 128 88 64 160 152 Dots
Horiz blanking time 144 176 200 192 224 256 240 256 248 Dots
Vertical visible 480 480 480 480 600 600 600 600 600 Lines
Vertical total 525 520 500 509 625 628 666 625 631 Lines
Vertical front porch 10 9 1 1 1 1 37 1 1 Lines
Vertical sync 2 3 3 3 2 4 6 3 3 Lines
Vertical back porch 33 28 16 25 22 23 23 21 27 Lines
Vertical blanking time 45 40 20 29 25 28 66 25 31 Lines
Horizontal frequency 31.469 37.9 37.500 43.269 35.156 37.879 48.077 46.875 53.674 KHz
Vertical frequency 59.940 72.81 75.000 85.008 56.250 60.317 72.188 75.000 85.061 Hz
Vertical sync p olarity - - - - + + + + + TTL
Horiz sync polarity - - - - + + + + + TTL

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640
480

60

640
480

72

640
480

75

640
480

85

2-8

800
600

56

800
600

60

800
600

72

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800
600

75

800
600

85

Hz

SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

Mode No 10 11 12 13 14 15 16 18 19
Resolution
&
Refresh Rate
Pixel Clock 65.000 75.000 78.750 94.500 108.000 135.000 157.500 28.320 25.175 MHz
Horizontal visible 1024 1024 1024 1024 1280 1280 1280 720 640 Dots
Horizontal total 1344 1328 1312 1376 1688 1688 1728 900 800 Dots
Horizontal front porch 24 24 16 48 48 16 64 18 16 Dots
Horizontal sync 136 136 96 96 112 144 160 108 96 Dots
Horizontal back porch 160 144 176 208 248 248 224 54 48 Dots
Horiz blanking time 320 304 288 352 408 408 448 180 160 Dots
Vertical visible 768 768 768 768 1024 1024 1024 400 480 Lines
Vertical total 806 806 800 808 1066 1066 1072 449 629 Lines
Vertical front porch 3 3 1 1 1 1 1 12 62 Lines
Vertical sync 6 6 3 3 3 3 3 2 2 Lines
Vertical back porch 29 29 28 36 38 38 44 35 85 Lines
Vertical blanking time 38 38 32 40 42 42 48 49 149 Lines
Horizontal frequency 48.364 56.476 60.023 68.677 63.981 79.976 91.146 31.469 31.469 KHz
Vertical frequency 60.004 70.069 75.029 84.997 60.020 75.025 85.024 70.087 50.030 Hz
Vertical sync polarity - - + + + + + + - TTL
Horiz sync polarity - - + + + + + - - TTL

1024

768

60

1024

768

70

1024

768

75

1024

768

85

1280
1024

60

1280
1024

75

1280
1024

85

720
400

70

640
480

50

Hz

Mode No 20 21 22 23 24 25 26 27 28
Resolution
&
Refresh Rate
Pixel Clock 74.250 74.250 25.175 30.000 30.240 57.283 100.000 72.000 MHz
Horizontal visible 1280 1920 640 852 640 832 1152 1360 Dots
Horizontal total 1650 2200 800 955 864 1152 1456 1520 Dots
Horizontal front porch 110 88 16 19 64 32 32 48 Dots
Horizontal sync 40 44 96 48 64 64 128 32 Dots
Horizontal back porch 220 148 48 36 96 224 144 80 Dots
Horiz blanking time 370 280 160 103 224 320 304 160 Dots
Vertical visible 720 540 350 480 480 624 870 768 Lines
Vertical total 750 562.5 449 525 525 667 915 790 Lines
Vertical front porch 5 3 37 10 3 1 3 2 Lines
Vertical sync 5 5 2 2 3 3 3 5 Lines
Vertical back porch 20 15 60 33 39 39 39 15 Lines
Vertical blanking time 30 23 99 45 45 43 45 22 Lines
Horizontal frequency 45.000 33.750 31.469 31.413 35.000 49.725 68.681 47.368 KHz
Vertical frequency 60.000 60.000 70.087 59.835 66.667 74.550 75.062 59.960 Hz
Vertical syn c polarity + + - - - - - - TTL
Horiz sync polarity + + + - - - - + TTL

1280
720P

60

1920

1080I

60I

640
350

70

852
480

60

640
480

67

832
624

75

1152

870

75

1360

768

60

Hz

ViewSonic Corporation

Confidential – Do Not Copy

2-9

SPECIFICATION FOR VPW505 PLASMA DISPLAY VER1.0

Mode No 29 30 31
Resolution
&
Refresh Rate
Pixel Clock 108.000 148.500 MHz
Horizontal visible 1280 1280 Dots
Horizontal total 1800 1728 Dots
Horizontal front porch 96 64 Dots
Horizontal sync 112 160 Dots
Horizontal back porch 312 224 Dots
Horiz blanking time 520 448 Dots
Vertical visible 960 960 Lines
Vertical total 1000 1011 Lines
Vertical front porch 1 1 Lines
Vertical sync 3 3 Lines
Vertical back porch 36 47 Lines
Vertical blanking time 40 51 Lines
Horizontal frequency 60.000 85.938 KHz
Vertical frequency 60.000 85.002 Hz
Vertical sync polarity + + TTL
Horiz sync polarity + + TTL

1280

960

60

1280

960

85

Hz

ViewSonic Corporation

Confidential – Do Not Copy

2-10

FACTORY & ELECTRONIC ADJUSTMENT VER1.0

"Vs" VR

"Va" VR

1. PANEL voltage adjustment

POWER VOLTAGE ADJUST FOR LG 50" TMDS PANEL

P805

1. POWER ON

2. INPUT ALL WHITE PATTERN

3. ADJUST "Vs" VR MEASURE P805 PIN9 TO PIN5 VOLTAGE IS 170 ~ 185 V

4. ADJUST "Va" VR MEASURE P805 PIN8 TO PIN5 VOLTAGE IS 55 ~ 65 V

ViewSonic Corporation

3-1

Confidential – Do Not Copy

FACTORY & ELECTRONIC ADJUSTMENT VER1.0

2. Color temperature adjustment
Push the factory service key to into the adjustment mode. The picture will appear as
follow

DVI

5400ºk
X=335 Y=343
GAIN Bias
RGB RGB
XXX XXX

Use the AV key to select the color to adjust andorkey to adjust the level.
The required equipments are CA-100,Vp300.

a. Adjust Bise first to let the Y be 0.4 on CA-100. Adjust R or B to let the value of

X,Y on CA-100 be the same as the value showing screen, The value of Y
should be Maintained 0.4 during the adjusting.

b. Move the cursor to adjust Gain. The value of Y should be adjusted to 25. Then

adjust R or B to let the value of X,Y on CA-100 be the same as the value
showing on screen. The value of Y should be maintain 25 during the adjstiy.

c. Repeat to check the Bias and Gain. The value of Y,X and Y should be the

same as the previous adjusted value. Then the DVI 5400ºk mode is adjusted
completely.

d. Push the factory service key again to next picture. Then repeat the steps a. b. c.

to adjust.
e. If the adjvstment is completed, repeat d. a. b. and c steps to adjust again.
f. When the last mode AV 13000ºk is adjusted completely, push the factory

service key again to leave the adjustment mode,

Note: 1. There are 12 adjusted modes(DVIx4.RGBx4 Componentx4)

2. The adjusted sequence is DVI´RGB´Component.

3. DVI/RGB : Bias Y=0.4
Gain Y=25
Component : Bias Y=1
Gain Y=35

ViewSonic Corporation

Confidential – Do Not Copy

3-2

BLOCK DIAGRAM VER1.0

X-Left-Top

X-Center-Top

CN1

SUB
Power

Pin[1: 4]

CN6
CN2 Pin[ 1: 3]

Pin[1: 2]

CN4

Pin[1: 6]

CN3

X-Right-Top

Z-SUS

Main Power

PB02 Pin[1: 5]

Front
Button
Control
Board Assy

Pin[1: 6]

JA3

Power SW

AC IN

Logic
Board

P100

Pin[1:40]

Pin[1:40]

J18

(TMDS)

Pin[1:48]

JP5

(9V)

Pin[1:3]

(5V)

Audio
Amplifier
Board Ass'y

Image Board
Ass'y

JP4

PinA[1:48]

J15 Pin[1:4]

(Audio DC,Suppl y)

J25

JA2

Pin[1: 10]

JA1

Pin[1: 12]

J14 Pin[1: 6]

(5V,SB DET )

Pin[1: 7]

J21

(24V,9V)

J28 Pin[1: 5]

J12 Pin[ 1: 10]

(Audio Signal)

J11 Pin[ 1: 12]

J5 Pin[1:6]

(Key)

Y-DRV-Top

Y-SUS

Y-DRV-Bottom

DC/DC
CONVERTER

X-Left-Bottom

X-Cente r -Bottom

X-Right-Bottom

AV Module
Board(with
Tuner) Assy

JP2 Pin[1: 32]

JP1

Pin[1:32]

Panel's Board Assem bly

SAMPO Board Assembl y

ViewSonic Corporation

4-1

Confidential – Do Not Copy

BLOCK DIAGRAM VER1.0

Image Board Socket Data

Image Board Ass'y

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
Pin 11
Pin 12
Pin 13
Pin 14
Pin 15
Pin 16
Pin 17
Pin 18
Pin 19
Pin 20
Pin 21
Pin 22
Pin 23
Pin 24
Pin 25
Pin 26
Pin 27
Pin 28
Pin 29
Pin 30
Pin 31
Pin 32
Pin 33
Pin 34
Pin 35
Pin 36
Pin 37
Pin 38
Pin 39
Pin 40

J1 (40 Pin)
GND
NC
RA­RA+
GND
GND
RB­RB+
GND
GND
RC­RC+
GND
GND
RCLK ­RCLK +
GND
GND
RD­RD+
GND
GND
GND
GND
NC
GND
NC
GND
NC
GND
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC

Image Board ←→ Audio Amplifier Board

Image Board

J11 (12 Pin)

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
Pin 11
Pin 12

Image Board ←→ Panel

J14 (6 Pin)
+5VSB
DGND
DGND
5V1
SB
DGND

J15 (4 Pin)
VGND
VGND
NC
+9V

Audio Amplifier Board

JA1 (12 Pin)

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
Pin 11
Pin 12

J21 (7 Pin)
+9VT
NC
DGND
+24V
+24V
GND
GND

Content

24V
24V
DGND
SB5V
DGND
AO_SEL
SDA2
SCL2
A_MUTEn
SURR1
SURR2
DGND

J25 (3 Pin)
+5VA
VGND
VGND

J28 (5 Pin)
SB
+5SB
VGND
AC_DET

AC_DET

Image Board

J12 (10 Pin)

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10

Image Board ←→ AV Module Board

Image Board

JP5 (48 Pin)

A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16

AV Module Board

JP2 (48 Pin)

A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
B16
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16

Image Board ←→ Audi o Amplifier Boar d

Audio Amplifier Board

JA2 (10 Pin)

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10

L_IN
R_IN
AGND
L_OUT
R_O UT
AGND
SUB_WFR
SPK_CTL
PWR_ CTL
NC

Content

Image Board ←→ AV Module Board

Content

+9VT
DGND
NC
DGND
SCL2
DGND
SDA2
DGND
NC
DGND
TV_R
DGND
TV_L
DGND
AFT_TUN
TUN_DETn
DVI_ L
DVI_ R
AGND
L_OUT
R_O UT
SUB_WFR
PWR_ CTL
AGND
AGND
AGND
AGND
AGND
AGND
D_CTL
RES ETQ
SD
AS_MP
AS_SP
RST_ DPTV
SV2_SW
V2B_DETn
YUVn_RGB
15Kn_MP
15Kn_SP
SB5V
TDO
TDI
NC
NC
TMS
DGND
TCK

Image Board

JP5 (48 Pin)

A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
B1
B2
B3
B4
B5
B6
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16

AV Module Board

JP2 (48 Pin)

A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
B16
B15
B14
B13
B12
B11
B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16

Image Board ←→ Front Button Cont r ol B oar d

Image Board

J5 (6 P i n )

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6

Front Butt on Cont rol
Board

JA3 (6 Pin)

Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6

Content

RC_O UT
SW_OUT
ON_LED
SB_LED
DGND
SB5V

Content

COMPOSI TE
VGND
S2_Y
S2_C
VGND
Y1
PB1_CB1
PR1_CR1
VGND
Y2
PB2_CB2
PR2_CR2
VGND
AVB_DETn
TV
VGND
AV1_L
AV1_R
AGND
S2_L
S2_R
AGND
YUV1_L
YUV1_R
AGND
YUV2_L
YUV2_R
AGND
RGB _L
RGB _R
AGND
AGND
PCn_MPU
PCSCS
PCSI
PCSCLK
SSO
DGND
P5V
SCL2
SDA2
DGND
SCL_SP
SDA_SP
DGND
SCL2_33
SDA2_33
DGND

ViewSonic Corporation

4-2

Confidential – Do Not Copy

BLOCK DIAGRAM VER1.0

Image Board Signal Block Diagram

SDRAM

(PAGE4)

TV
AV

S-VIDEO

TA8551CH
AV
SWITCH

IC1

(PAGE2)

VIDEO
Y
C

VIDEO
Y
C

Y1/CB/CR
Y1/PB/PR

MULTIPLEX
SWITCH

IC3

6830 MAIN
Video
Processor

U45

6830 SUB
Video
Porcessor

U46

YCBCR

YCBCR/YPBPR

YCBCR/YPBPR

(PAGE3)

(PAGE5)

SDRAM

(PAGE6)

YUV

MULTIPLEX
SWITCH

IC2

RGB IN

MULTIPLEX
SWITCH
U34

(PAGE7)

R,G,B

RGB OUT

AD
Converter
U29

(PAGE8)

SIL169 DVI
U32

(PAGE10)

SDRAM

(PAGE12)

SCALE IC
C711/C713

U23

(PAGE11)

LVDS
TRANSMITTER

(PAGE14)

Clock
Generator

9161A(PLL)

(PAGE13)

P
A
N
E
L

Y2/CB/CR

Y2/PB/PR

MULTIPLEX
SWITCH

IC7

(PAGE1)

TA1276
Color Space
Conveter

U43

CPU
U4

(PAGE9)

DVI IN

RS232

ViewSonic Corporation

4-3

Confidential – Do Not Copy

BLOCK DIAGRAM VER1.0

SB5V

J14

+5VSB

1
2
3
4

+5V1
5
6

(USB5V, SB5V_M, SB5V_IO, SB5V_CPU)

SB5V_V

U63

U13

U61

P5V

D43

(5V_OSD)

VDDM

5VDDA

U62

U60

U56

U52

REG_5V

5VDDD

5VDDM1

REG_5V_S

U31

U28

U54

U58

Image board Power Block Diagram

SB5V_VO

R376

V33SB

USB3V

V33

V33P

(VDD33)

V33TMP

VCC3

VCCA3

V33ADC

V33PLL

VADC3

V25_MP

L13

L17

L15

(VDRAM )

(VCC3_M )

VCCPLL

VCCBF

VIP711

J21

1
2
3
4
5
6
7

CON8009

1
2
3
4
5
6
7
8
9

CON8011

1
2
3
4
5
6
7
8
9
10
11
12
13

J25

1
2
3

+5VA

+5VA

+9VT

+24V

+9V

P9V

(+9V)

IC9

P24V

A5V

J25

1
2
3

J15

1
2
3
4

A5V

P5V_COLOR

ViewSonic Corporation

U53

U55

U57

U59

VCCA3_S

VADC3_S

VCC3_S

V25_SP

(VCC3_M _S)

4-4

J28

1
2
3
4
5
6

+5VSB

Confidential – Do Not Copy