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Service Manual
ViewSonic PJ606-1
Model No. VS11233
LCD Projector
(PJ606-1_SM Rev. 1a Jan. 2006)
ViewSonic 381 Brea Canyon Road, Walnut, California 91789 USA - (800) 888-8583
Copyright
Copyright 2005 by ViewSonic Corporation. 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 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
Optiquest is a registered trademark of ViewSonic Corporation.
ViewSonic is a registered trademark of ViewSonic Corporation.
All other trademarks used within this document are the property of their respective owners.
Revision History
Documents Number
Revision SM Editing Date Description of Changes Editor
DCN Number ECR Number
1a 01/04/06 5803 Initial Release BonnieT.
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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TABLE OF CONTENTS
1. Precautions and Safety Notices 1
2. Trouble shooting 2
3. Main board Firmware Download 13
4. Disassembly 18
5. Service Mode and Adjustment 35
6. RS232 command 39
7. Block Diagram 43
8. Basic Circuit Diagrams 45
9. Recommended Spare Parts List 74
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Chapter 1
Precautions and Safety Notices
1. When replacing the lamp, use care to avoid burns to your fingers. The lamp becomes very hot
during operation.
2. Never touch the lamp with your fingers as body oil transferred to the lamp can damage the
lamp's useful life.
3. Never drop the lamp or jar it in any manner. This may cause the lamp to burst.
4. This projector is provided with a high voltage circuit for the lamp. Do not touch any electric
part or component after the projector has been turned on and is operating. Doing so could
induce a severe shock causing injury or death.
5. Do not touch the exhaust fan, nor block its air flow, during operation, as the fan is hot.
6. Use only the cables which are included with the projector, or are specified in this manual.
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Chapter 2
Trouble shooting
Cautions when replacing the Optical Engine and Main board :
1 Make sure the 24LC128 on main board U14 always goes with its original
Optical Engine one by one when you replace the main board or Optical Engine.
2 Make sure the direction of 24LC128 on main board.
3 Execute " C&B calibration " and " Keystone calibration " when you replace
Main board every time. Otherwise the screen will miss gray level or become keystone
distortion.( please refer to page P37 and P38 )
------------------------------
1.1 The color parameter is kept in 24LC128 ( locate U14 ) ,
and the color parameter is different due to different optical engine.
1.2 View Sonic will provide a new U14 with a new optical engine when you must to change an
engine , and the U14 was be adjusted with the optical in ViewSonic factory.
1.3 When you replace an optical engine or main board , please confirm the U14 has to always goes
with its original optical engine one by one.
2.1 Make sure the the direction of 24LC128 on main board , the mark (*) at the left side.
*
3.1 C&B calibration function for picture performance can become optimal by your signal input.
3.2 Keystone calibration function for the project can correct keystone automatically.
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Troubleshooting
Projector System Block Diagram
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Troubleshooting
- LED Lamp Indicator
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Troubleshooting
- Troubleshooting flow chart
Start
Connect
Power Core
Connect
computer & DVD
cable
Turn On the
Power Switch
Press Lamp
On Button
A. No Image
Have
No Troubleshooting
Image
Yes
Is Image
No B. Poor Image quality
quality
OK Troubleshooting
Yes
1
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Troubleshooting
1
Yes
Is the OSD&DVD C.OSD & DVD
No
Function OK? function NG
Troubleshooting
Yes
D.Audio Function
Is Audio OK? No
Troubleshooting
Yes
Is Remote E.Remote Control
No
Control OK? Troubleshooting
Yes
F. Keypad
Is Keypad OK? No
Troubleshooting
Yes
No Trouble
Found
Yes
END
ViewSonic Corporation Confidential - Do Not Copy PJ6006-1
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Troubleshooting
A.No Image Troubleshooting
Start
Check LED
indicator on
keypad
Green off Change
yes keypad
no Change power no
Red off supply
yes
yes
Green fast yes
Check / change
Flashing yes END
lamp door switch
Red on
no no
Green fast no
no Check / change no Check / change
yes Check / change
flashing Red fast thermal switch Lamp / Ballast
thermal sensor
flashing connector connector
yes yes
yes
no
Green on Check fan pin2 Change
Red fast flashing voltage - 5V no. yes
yes NG fan
(J1,J4,J5, J6,J15)
no
no
no
Green on yes END
Red off
Change Main Board
no
no ,but keep the same
24LC128
No trouble found
Yes
END
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Troubleshooting
B.Poor Image quality Troubleshooting ( flicker , discolor, streak..etc)
Start
Press " Auto" key & yes
" reset all " on OSD
no
Change computer / yes
DVD cable
no
Change Main board ,
but keep the same yes
24LC128
no
Change Optical Engine and
24LC128 (that with the new Optical Engine)
END
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Troubleshooting
C.DVD / OSD Function NG Troubleshooting
Start
Re-flash yes
firmware
no
Change Main
board , but keep the yes
same 24LC128
no
No trouble found
END
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Troubleshooting
D.Audio Function troubleshooting
Start
Change Cable/
Have Sound? no yes END
Connector
yes no
Have Noise? yes Change Speaker yes
no
Change Main Board , but
keep the same 24LC128 yes
no
Change IO Board
no
yes
END
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Troubleshooting
E.Remote Control troubleshooting
Start
Replace the
Battery yes
no
Change New
One Remote yes END
Controller
no
Change Main board ,
but keep the same
24LC128
END
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Troubleshooting
F.Keypad troubleshooting
Start
Change Keypad Change Main board
no
Board ,but keep the same 24LC128
yes
END
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Chapter 3
M/B Firmware
M/B firmware Download SOP
1.Hardware Connection:
A. Power cable
B. RS-232C cable ( PS2 cable : part number : 11660026)
C. Power switch must be turn " OFF" .
RS-232C Power Power
cable. switch. cable.
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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M/B Firmware
2.Select and click " FlashUpgrader"
3.Check in the Directory parameter " Model" and the " version no. " to be use.
For example :
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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M/B Firmware
4.Select and click " Flash" .
5.After clicking " Flash" , it will turns into " Cancel" .
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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M/B Firmware
6.Turn " ON" the power switch.
Power
switch.
7.It will start " Downloading" .
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M/B Firmware
8.Done and finished.
9.Press power switch OFF after download.
Power switch.
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Chapter 4
Disassembly
Item Description Q'ty
1 Case Top A 1
- Exploded Chart 2 Case Ring 1
3 Case keypad A 1
4 Keyboard PCBA 1
5 Flat wire 1
6 screw N3x6 4
7 Mylar MB 1
8 Case BTM A 1
9 Adjust Foot A 2
10 screw PIP 2.6x16 2
11 Inlet Case 1
12 Inlet Filter 1
13 Cover SW Ass'y 1
14 screw B 2x10 2
15 Ass'y Panel Duct 1
16 Ass'y Exhaust Duct 1
17 Optical Engine Assy 1
18 screw PIP 2.6x5 5
19 screw ZN 3x12 4
20 screw PIP 3x8 2
21 Ballast 1
22 screw PIP 3x8 2
23 screw PIP 3x8 2
24 Power Supply (270W) 1
25 Mylar AC PF 1
26 AC Filter 1
27 screw PIP 3x8 4
28 screw BM 4x6 2
29 screw PIP 3x8 2
30 Inlet Fan ( 2410-B39-3pin ) 1
31 Fan NBR 1
32 Fan Mylar 1
33 Main Board 1
34 IO CASE 1
35 screw BM 3x8 2
36 screw PIP 3x8 2
37 screw M 3x6 2
38 screw BM 3x8 5
39 Card Holder 1
40 Zoom Ring 1
41 Focus Ring1 1
42 Focus Ring1 1
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Disassembly
- Exploded Chart
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Disassembly
- Disassembly Indication
1.Low Cover Sponge Disassembly
a.Pull Blower Inlet Cover
b.Sponge disassembly
Sponge
Pull
Blower Inlet Cover
fig 1
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Disassembly
2.Lamp Module Disassembly
Caution :Please be carefully,because Lamp module is very hot.
And please wear a anti-heat glove if you lamp off in 10 minutes.
A. .Take off Screw BM3x8 1 pcs
Take off Lamp Cover Upper
fig 2
B.Take off Screw BM3x12 2 pcs
from Lamp Module
fig 3
C.Pull Lamp Module out
fig 4
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Disassembly
3.Top Cover Disassembly
a.Unscrew 5 pcs BM3*8 screws
fig 5
b.Carefully pull Keypad FFC cable
c.Take out Top Cover
Keypad FFC cable
fig 6
ViewSonic Corporation Confidential - Do Not Copy PJ606-1
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Disassembly
- Main Board connection
Fan EP
SW (Lamp door switch)
Lamp
KPD ( keypad)
Fan EY THA ( thermal ) Power
Fan EW IR1
Fan FX Panel B
Fan EV
Panel G
Panel R
IR2
speaker
fig 7
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