Toshiba TDP-ST20E User manual

SERVICE MANUAL
FILE NO. 330-200712GR
DLP PROJECTOR
The above models are classified as green product (s) (*1), as indicated by the underlined serial number (s).
This Service Manual describes replacement parts for green product (s). When repairing any green product (s), use
the parts described in this manual and lead-free solder (*2).
For (*1) and (*2) , see the next page.
Published in Japan, August 2007 GREEN© TOSHIBA CORPORATION
TDP-ST20E,TDP-ST20B
Rev.01

(*1) GREEN PRODUCT PROCUREMENT
The EC is actively promoting the WEEE & RoHS Directives that define standards for recycling
and reuse of Waste Electrical and Electronic Equipment and for the Restriction of the use of
certain Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any
marketing of new products containing the restricted substances.
Increasing attention is given to issues related to the global environmental. Toshiba Corporation
recognizes environmental protection as a key management tasks, and is doing its utmost to
enhance and improve the quality and scope of its environmental activities. In line with this,
Toshiba proactively promotes Green Procurement, and seeks to purchase and use products,
parts and materials that have low environmental impacts.
Green procurement of parts is not only confined to manufacture. The same green parts used in
manufacture must also be used as replacement parts.
(*2) LEAD-FREE SOLDER
This product is manufactured using lead-free solder as a part of a movement within the consumer
products industry at large to be environmentally responsible. Lead-free solder must be used in
the servicing and repair of this product.
WARNING
This product is manufactured using lead free solder.
DO NOT USE LEAD BASED SOLDER TO REPAIR THIS PRODUCT !
The melting temperature of lead-free solder is higher than that of leaded solder by 86°F to 104°F
(30°C to 40°C). Use of a soldering iron designed for lead-based solders to repair product made
with lead-free solder may result in damage to the component and or PCB being soldered. Great
care should be made to ensure high-quality soldering when servicing this product ⎯especially
when soldering large components, through-hole pins, and on PCBs ⎯as the level of heat
required to melt lead-free solder is high.
I

II
Table of Contents
Chapter 1 1-1
Specifications 1-1
Using the Menus 1-3
Names of the Terminals on the Rear Panel 1-4
Name of each part on the main unit 1-5
Name of each part on the control panel and remote control 1-6
List of Supported Signals 1-7
Chapter 2 2-1
Replaceable Part Hierarchy 2-1
Required Tools 2-2
Parts Replacement 2-3
Chapter 3 3-1
SINGOWS 2000 3-1
Chapter 4 4-1
Firmware Upgrade 4-1
Chapter 5 5-1
Wiring Diagram 5-1
Block Diagram 5-2
Chapter 6 6-1
LED Display 6-1
Troubleshooting 6-2
Operation of Power Supply 6-9
Chapter 7 7-1
Electrical adjustment 7- 1
Chapter 8 8-1
Functional Test 8-1
Chapter 9 9-1
Exploded view 9-1
Otherparts 9-3
Spare Parts List 9-4
C
ontents

1-1
Chapter 1
Specifications
Chapter 1

1-2
Specifications (Continued)
Chapter 1

Cha
p
ter 1
1-3
Using the Menus

Cha
p
ter 1
1-4
Names of the Terminals on the Rear Panel

Cha
p
ter 1
1-5
Names of each part on the main unit

1-6
Cha
p
ter 1
Names of each part on the control panel and remote control

1-7
Cha
p
ter 1
List of Supported Signals

Cha
p
ter 1
1-8

2-1
Chapter 2
Replaceable Part Hierarchy
Replaceable Part Hierarchy
The flow chart below shows what parts must be removed to access each replaceable part in the projector.
The parts on the first level (Ex.Lamp cover) are accessible without removing any other parts.
The move levels down that a part is, the more parts you need to remove in order to access it.
Start
PCB AV F2000
Fuse
Front
Cover
Side Panel
(R,L)
Top
Cover PCB Main
PCB
Lens
Lamp
Driver
Lamp Fan
Rear
Panel
Lamp
Protecter
Lamp
Cover
PCB Key
Optical
Block
Intake
Fan
Lamp
Bracket
Thermal
SW
Color
Wheel
Exhaust
Fan
Balast
Fan
PCB
Sensor
Foot ADJ
PCB
Door SW
PCB
Remocon
Power
Main
Lens
DMD
Chapter
2

Chapter 2
2-2
Required Tools
Cuttin
g
pliers
Driver bit (
䋫
) No 0
Torque driver bit (
䋫
) No 2
Nippers
Item Photo
Driver bit (
䋫
) No 2
Box driver M3

Chapter 2
2-3
Parts Replacement
1.Lamp
No Figure Explanation
Remove two lamp cover screws.
2
Outer lamp cover is removed.
3
Remove a screw.
Inner lamp cover is removed.
Remove three lamp screws.
Pull up the handle,
and push the tab to remove the lamp.
Lamp is pulled out.
1
4
5
6

Chapter 2
2-4
2.Front Cover
Step Figure Explanation
Remove a screw at the bottom.
Push these point, you will take off easy.
front cover is removed.
Front cover and Senser PCB are removed.
2
1
4
3

Chapter 2
2-5
3.Side Cove
r
Step Figure Explanation
There are two small holes.
Push the hook with minus driver.
Side Cover R is removed.
[Note]
Side Cover R is :
There are 4 projections on the panel.
There are two small holes.
Push the hook with minus driver.
Side Cover L is removed.
2
3
1
4

Chapter 2
2-6
4.Top Cover
Step Figure Explanation
Remove three screws at the rear.
Remove two screws at the right side.
Remove a screw at the left side.
Open the Top cover.
[Note]
Be careful of connection cabels.
Top cover is removed.
Door switch is removed.
Key PCB is removed.
㪉
3
4
1

Chapter 2
2-7
5.Main Board
Step Figure Explanation
All the connectors on a main board unit are removed.
Remove seven screws.
Main and AV PCBoard are removed with rear panel.
Remove a screw at the rear panel.
Rear panel is removed.
Remove two screws on the main PCB.
Remove four screws at the D-SUB connectors.
Main and AV PCBoard are removed.
1
2
5
3
4

Chapter 2
2-8
6.Balast Unit
Step Figure Explanation
Remove four screws.
Remove four plastic rivets.
Balast is removed.
3
1
2
4

Chapter 2
2-9
7.Main Power Unit
Step Figure Explanation
Remove two screws.
Main Power Unit is removed.
8.Exhaust Fan
Remove a screw.
Remocon Reciever is removed.
Exhaust Fan is removed.
2
2
4
3
1
1