Toshiba TLP-510U User manual

3LCD DATA PROJECTOR
SERVICE MANUAL
TLP510U, TLP511U
TLP510E, TLP511E
FILE NO. 330-9706
PRINTED IN JAPAN, Nov., 1997
S
TLP511U

SECTION 1
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
SECTION 2
SERVICING DIAGRAMS
SECTION 3
PARTS LIST
4. ELECTRICALADJUSTMENT ............................................... 1-12
4-1. Camera Section Adjustment (TLP511U/E) ..................... 1-16
1. PART CONFIGURATION AND THEIR SYMBOLS.............. 2-1
2. PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM .......................................................... 2-7
3. BLOCK DIAGRAMS .................................................................. 2-9
3-1. System Block Diagram ........................................................ 2-9
4. CIRCUIT DIAGRAMS ............................................................. 2-11
4-1. Drive Circuit Diagram ...................................................... 2-11
4-2. Video/Audio Circuit Diagram........................................... 2-15
4-3. Digital (Rch) Circuit Diagram.......................................... 2-19
4-4. Digital (Gch) Circuit Diagram.......................................... 2-22
4-5. Digital (Bch) Circuit Diagram .......................................... 2-25
4-6. Digital (Common) Circuit Diagram ................................. 2-28
4-7. Microcomputer, F-REM Circuit Diagram ...................... 2-31
4-8. Fan Control Circuit Diagram ........................................... 2-34
4-9. Inverter Circuit Diagram (TLP511U/E).......................... 2-35
4-10.Camera Circuit Diagram (TLP511U/E) .......................... 2-37
5. PC BOARDS............................................................................... 2-40
5-1. Drive PC Board ................................................................. 2-40
5-2. Digital PC Board................................................................ 2-43
5-3. Video PC Board ................................................................. 2-45
5-4. Inverter PC Board (TLP511U/E) ..................................... 2-49
5-5. Switch PC Board (TLP511U/E) ........................................ 2-50
5-6. Audio PC Board ................................................................. 2-51
5-7. Camera PC Board (TLP511U/E) ..................................... 2-51
5-8. F-REM PC Board .............................................................. 2-52
1. SAFETYPRECAUTION ............................................................ 3-1
2. NOTICE ........................................................................................ 3-1
3. ABBREVIATIONS ...................................................................... 3-1
3-1. Integrated Circuit (IC)........................................................ 3-1
3-2. Capacitor (Cap) ................................................................... 3-1
3-3. Resistor (Res) ....................................................................... 3-1
4. EXPLODEDVIEWS ................................................................... 3-2
4-1. Packing Assembly ................................................................ 3-2
4-2. Remote Control Unit ........................................................... 3-3
4-3. Label Position....................................................................... 3-3
4-4. ChassisAssembly ................................................................. 3-4
4-5. Optical Box Assembly.......................................................... 3-5
4-6. Arm Assembly...................................................................... 3-6
5. PARTS LIST................................................................................. 3-7
1. LOCATION OF MAIN PARTS ................................................. 1-1
2. LOCATION OF PC BOARDS.................................................... 1-1
3. DISASSEMBLING....................................................................... 1-2
3-1. Main Unit (1)........................................................................ 1-2
3-2. Main Unit (2) – Optical Box................................................ 1-5
3-3. Document Camera Section (TLP511U/E)........................ 1-10
CONTENTS
SAFETYPRECAUTIONS.................................................................... i
IMPORTANTPRECAUTIONS........................................................... i
IMPORTANT SAFETY INSTRUCTIONS ........................................ ii

1-1
SECTION 1
PART REPLACEMENT AND
ADJUSTMENT PROCEDURES
1. LOCATION OF MAIN PARTS
Fig. 1-0-1
2. LOCATION OF PC BOARDS
Fig. 2-0-1
SECTION 1
PART REPLACEMENT AND
ADJUSTMENT PROCEDURES
P100 Thermal Lead Switch
Projection Lens
Inter Lock Switch
P800 Main Power Block
Z100 Exhaust Air Fan
B180 Lamp House
E214 Air Suction Fan
P200 Speaker
E200 Optical Mirror Box
SC01 Arm Position Detection Switch
PC302 FL Lamp
PC300 Camera Unit Assembly
TLP511U/E
U0011 Drive PC Board
U0032 Audio PC Board
U0015 F-REM PC Board
U0042 Switch PC Board
U0041 Inverter PC Board
U002 Digital PC Board
U0031 Video PC Board
U501 Camera Video PC Board
TLP511U/E

1-2
CAUTIONS BEFORE STARTING SERVICING
Electronic parts are susceptible to static electricity and may easily damaged, so do not forget to take a proper
grounding treatment as required.
Many screws are used inside the unit. To prevent missing, dropping, etc. of the screws, always use a magnetized
screwdriver in servicing. Several kinds of screws are used and some of them need special cautions. That is, take care
of the tapping screws securing molded parts and fine pitch screws used to secure metal parts. If they are used
improperly, the screw holes will be easily damaged and the parts can not be fixed.
3-1-2. Top Cover and Speaker
1. Remove document camera. (TLP511U/E: Refer to Fig.
3-1-1.)
2. Remove top tag and remove 1 screw (1).
3. Remove 6 screws (2) and lift up top cover while
pressing section A of the top cover.
4. Remove speaker connector (3) and remove top cover.
5. Remove 2 screws (4) securing speaker holder, and
remove speaker from speaker holder.
Fig. 3-1-2
3. DISASSEMBLING
3-1. Main Unit (1)
3-1-1. Document Camera (TLP511U/E)
1. Remove 4 screws (1) and remove document camera
rear plate.
2. Disconnect 1 connector (2) connected to the document
camera.
3. Remove 5 screws (3) and remove the document
camera.
Fig. 3-1-1
Document camera
Connector (2)
Screws (3)
Document camera
rear plate
Screws (1)
Screw (1)
Screws (2)
Screws (4)
Top tag
Top cover
Section A
Speaker
Speaker
holder
Speaker
connector (3)
Screws (2)
Screws (2)

1-3
3-1-3. Drive PC Board and F-REM PC Board
1. Remove 1 screw (1) and remove reinforcement metal
plate.
2. Remove 6 screws (2) securing drive PC board.
3. Remove 3 flexible cables (3) from LCD panel and 2
flexible cables (4) from the rear side.
4. Disconnect 8 connectors (5) from drive PC board.
5. Confirm all the connector are disconnected and then
lift up the drive PC board.
6. Remove 1 screw (6).
7. Remove 1 connector (7) and remove F-REM PC Board.
Fig. 3-1-3
3-1-4. Digital PC Board
1. Remove drive PC board. (Refer to Fig. 3-1-3.)
2. Remove 1 connector (1).
3. Lift up digital PC board.
Fig. 3-1-4
3-1-5. Lamp House Assembly and Exhaust Fan
Note:
• Remove the lamp unit in advance. (Refer to Owner’s
Manual.)
1. Remove 2 connectors (1).
2. Remove 2 screws (2) and disconnect socket.
3. Remove 3 screws (3) and remove lamp house assembly.
4. Remove 2 screws (4) and remove exhaust fan.
5. Remove 1 screw (5) and remove exhaust fan mounting
frame.
<When removing the exhaust fan >
Make sure the top cover is removed. Remove 2 screws (4)
and disconnect connector of fan lead, and the fan will be
removed.
Fig. 3-1-5
Screw (1)
Screws (2)
Screw (6)
Flexible cables (4)
Flexible cables (3)
Connectors (5) Reinforcement
metal plate
Drive PC board
F-REM
PC board
Connector
(
7
)
Screws (2)
Screws (2)
Connectors
(5)
Connectors (5)
Screws (2)
Digital PC board
Connector (1)
Screws (2)
Screws (3)
Screws (4)
Connectors
(1)
Socket
Fan mounting
frame
Exhaust fan
Lamp house
assembly
Screws (3)
Screw (5)
Connectors
(1) Screws
(3)

1-4
3-1-6. Optical Box and Air Suction Fan
1. Remove drive PC Board. (Refer to Fig. 3-1-3.)
2. Remove lamp house assembly. (Refer to Fig. 3-1-5.)
3. Remove 2 screws (1) and remove PC board holder
bracket.
4. Remove 3 screws (2) and remove metal fitting.
5. Remove 4 screws (3) and remove optical box lifting
upward.
6. Remove 2 screws (4) and remove air suction fan.
Fig. 3-1-6
3-1-7. Main Power Supply Block
1. Remove drive PC board. (Refer to Fig. 3-1-3.)
2. Remove lamp house assembly. (Refer to Fig. 3-1-5.)
3. Remove optical box. (Refer to Fig. 3-1-6.)
4. Remove 1 connector (1).
5. Remove 4 screws (2) and remove main power supply
block.
Fig. 3-1-7
3-1-8. Video PC Board and Audio PC Board
1. Remove drive PC board. (Refer to Fig. 3-1-3.)
2. Remove lamp house assembly. (Refer to Fig. 3-1-5.)
3. Remove optical box. (Refer to Fig. 3-1-6.)
4. Disconnect joint of Video PC board and audio PC board.
5. Remove 1 connector (1) of Video PC board.
6. Remove 8 screws (2) and remove Video PC board.
7. Remove 3 screws (3) and remove audio PC board.
Fig. 3-1-8
Screws
(1)
Screws (2)
Screws
(3)
Screws
(4)
Optical box
Metal
fitting
PC board
holder bracket
Air suction
fan
Screws
(1)
Screws (2)
Screws (3)
Connector
(1)
Video
PC board
Audio
PC board
Audio PC board side
Video PC board side
Screws
(3)
Screws (2)
Connector (1)
Main power
supply block

1-5
3-2. Main Unit (2) – Optical Box
3-2-1. Lens
1. Remove optical box. (Refer to Fig. 3-1-6.)
2. Remove 4 screws (1) and remove lens.
Fig. 3-2-1
3-2-2. Filter Cover and Mirror Block Cover
1. Remove optical box. (Refer to Fig. 3-1-6.)
2. Peel off tape covering openings around FPC section of
each color LCD on the filter cover.
3. Remove 4 screws (1) and remove filter cover.
4. Remove 6 screws (2) and remove mirror block cover.
Fig. 3-2-2
Lens
Screws (1)
Screws (1)
Screws (2)
Filter cover
Mirror block
cover
3-2-3. LCD Block, LCD Plate and LCD Panel
Note:
• Do not touch the LCD panels with your bare fingers.
Wear white cotton gloves when working with the panels.
1. Remove all cables connected to connectors on PC board
and LCD panel and drive PC board.
2. Peel off tape covering openings around FPC section of
each LCD on filter cover.
3. Remove 4 screws (1) and remove filter cover.
4. Remove 3 screws (2) (always use a screw driver with a
strong magnet) and remove LCD plate with LCD to be
replaced from LCD block. When replacing three LCDs
at the same time, first remove green LCD plate from the
LCD block.
5. Remove 3 screws (3) and remove LCD panel from LCD
plate.
Fig. 3-2-3
Screws (1)
Screws
(2)
Screws
(3)
Filter
cover
LCD plate
LCD panel
(Green)
LCD panel
(Blue)
LCD panel
(Red)
Screws (3) Screws (2)
LCD plate
Screws
(2)
LCD plate
Screws
(3)

1-6
< How to mount a new LCD >
1. When mounting a red LCD, mount it on the red LCD
plate (No.23796019) or when mounting a blue LCD,
mount it on the blue LCD plate (No.23796018) so that
the FPC section faces upward and main unit side faces
downward.
2. When mounting a green LCD, mount it on the LCD
plate used so far. In this case, prepare the green LCD
mounting jig (No.23796021), and position the LCD
plate so that its two holes (1) matches two protruded
parts on the jig. Then place the green LCD on it in the
same direction as the red and blue LCDs by tightening
screws (3 holes (2) on the LCD plate).
Note:
• Be always sure to attach the black shielding sheet on
the LCD.
Fig. 3-2-4
3. Mount the LCD plate with a new LCD mounted at the
bottom side of the LCD block (can be mounted only in
one direction) and tighten the screws. Do not tighten
the screws completely. Tighten the screws temporarily
so that the LCD can move for later pixel matching
adjustment of the LCDs.
Note:
• Do not mount the filter cover to allow the LCD
adjustment.
< Adjustment of LCD >
If the red and blue LCD panels need to be adjusted, follow
the procedures in the item “Red/Blue LCD adjustment”.
However, if the green LCD panel needs to be adjusted,
follow the procedures in the item “Green LCD adjustment”.
After the green LCD panel adjustment is carried out, it is
necessary to replace or adjust the red and blue LCD panels
as described in the item “Red/Blue LCD adjustment”.
Green LCD plate
(1) LCD plate mounting holes
Green LCD mounting jig
(2) LCD mounting holes
< Service jig >
• Focus adjust jig : 23974761
Fig. 3-2-5
< Drive PC board remounting >
Remount the drive PC board under the filter cover not
installed. Connect cables removed from connectors on the
drive PC board and the LCD panel as they were con-
nected. (If a signal generator which can not generate a
white raster signal is not available, do not connect the
LCD panel.)
< Setup >
1. Make a wall chart on white fiber board as illustrated in
Fig. 3-2-6.
Note:
• Only use a stiff material to prevent focus errors.
Fig. 3-2-6
2. Retract the foot adjusters so the unit sits flat.
3. Place the LCD Projector on a table so that the front
edge of the lens is 1.45m from the wall. (Refer to Fig.
3-2-6)
4. Set the zoom ring to the maximum wide setting.
5. Adjust the focus ring to the center of its range.
812.8mm (12")
1.45m (57")
609.6mm
(24")
92mm

1-7
6. Feed a white raster signal through RGB connectors
and turn on the power of the projector. (If a signal
generator which provides a white raster signal is not
available, turn on the power without connecting the
LCD panel.)
7. If all three LCD panels need to be replaced, refer to
the “Green LCD adjustment”.
8. Adjust the focus ring and the raster focus of the LCD
which has not been replaced. If the green LCD is not
replaced, adjust the green raster. If the green LCD is
replaced, adjust the red raster, and if the red LCD is
replaced, adjust the blue raster.
9. Atach the wall chart to the wall so the bottom line of
the square lines up with the bottom of the raster. Also,
center the chart horizontally with the raster.
10. Adjust the zoom ring and make sure the bottom of the
raster remains on the bottom line. Return the zoom
ring to the maximum wide setting.
11. Hereafter, do not move the setting position and the
focus ring.
< Red/Blue LCD adjustment >
1. Confirm connection of the LCD panel (if not con-
nected, connect the LCD to the connector of the PC
board.)
2. Turn the projector on.
3. Input the cross hatch pattern from RGB connectors.
Only input R signal when adjusting the red panel
focus, and only input B signal when adjusting the blue
panel focus.
4. Prepare two focus adjustment jigs. Insert them onto
two holes on bottom of the LCD plate, and adjust the
LCD plate back and forth until the best focus is
obtained in considering left and right balance of the
projection screen.
Fig. 3-2-7
5. If the focus or raster geometry is changed, when
tightening the screws holding the LCD mount, loosen
the screws slightly and readjust.
6. Prepare one focus adjustment jig and insert it onto the
one hole on top of the LCD plate, and adjust the LCD
plate back and forth until the best focus is obtained in
considering upper and lower balance of the projection
screen. (Refer to Fig. 3-2-7.)
7. If the focus or raster geometry is changed, when
tightening the screws holding the LCD mount, loosen
the screws slightly and readjust.
8. Input the cross hatch pattern of G signal.
9. Adjust the cross hatch pattern up & down (Refer to
Fig. 3-2-8) and left & right (Refer to Fig. 3-2-9) with
the three adjusting screws (hex screw driver (1.0 mm)
available on the market) until it is aligned with the
green cross hatch pattern.
Fig. 3-2-8
Fig. 3-2-9
10. Turn off the power, and remove the FPC section of the
LCD from the connector of the drive PC board.

1-8
11. Fill a quick dry adhesive at joint of the LCD mount. In
this case, sufficient care will be necessary so that the
adhesive does not stick to the LCD panel surface or
any other parts.
Note:
• Use the adhesive available on the market as an epoxy
type two liquid mixture of equal amount.
Fig. 3-2-10
Adhesive filling hole
Red/Blue LCD plate
12. Leave the LCD block until the adhesive is hardened
for a required time. In this case, place a thin paper on
the LCD block to prevent dusts from entering.
13. When the adhesive is hardened, connect the FPC of
the LCD to the connector of the PC board, and turn on
the power. Check to see pixel deviation of the LCD.
14. Check to see dusts of the LCD. If dusts are found,
remove them.
15. Turn the power off. Remove all the cables connected
to the PC board and LCD panel, and remove the drive
PC board.
16. Mount the filter cover removed again. Tighten 4
screws, and close openings around the FPC section
with tape.
17. Mount the drive PC board again. Connect cables
disconnected from the drive PC board and the LCD
panel as they were connected.
18. Turn on the power and check operations.
(3) Upper left (2) Upper right(3) Upper left(2) Upper right
(1) Right
(1) Left
Blue LCD plateRed LCD plate
Blue-vertical direction adjustment
screw (3) (for the screen right side use).
Loosen it direction.
Red-vertical direction adjustment
screw (2) (for the screen right side use).
Loosen it direction.
Blue-left and right direction
adjustment screw (1)
Closing direction.
Blue-vertical direction adjustment
screw (3) (for the screen right side use).
Closing direction.
Blue-vertical direction adjustment
screw (2) (for the screen left side use).
Loosen it direction.
Red-vertical direction adjustment
screw (3) (for the screen left side use).
Loosen it direction.
Blue-vertical direction adjustment
screw (2) (for the screen left side use).
Closing direction.
Red-vertical direction adjustment
screw (2) (for the screen right side use).
Closing direction.
Red-vertical direction adjustment
screw (3) (for the screen left side use).
Closing direction.
Red-left and right direction
adjustment screw (1)
Closing direction.
Blue-left and right direction
adjustment screw (1)
Loosen it direction.
Red-left and right direction
adjustment screw (1)
Loosen it direction.
Movement of a cross hatch pattern with respect to a screen depending on an adjustment screw
(fundamental action).
Fig. 3-2-11
Fig. 3-2-12

1-9
< Green LCD adjustment >
1. Confirm connection of the LCD panel (if not con-
nected, connect the LCD to the connector of the PC
board.)
2. Turn the projector on.
3. Input the cross hatch pattern from the RGB connec-
tors. Adjust the green color only.
4. Prepare two focus adjustment jigs. Insert them onto
two holes on bottom of the LCD plate, and adjust the
LCD plate back and forth until the best focus is
obtained in considering left and right balance of the
projection screen. (Refer to Fig.3-2-7.)
5. If the focus or raster geometry is changed, when
tightening the screws holding the LCD mount, loosen
the screws slightly and readjust.
6. Prepare one focus adjustment jig and insert it onto the
upper hole of the LCD plate, and adjust the LCD plate
back and forth until the best focus is obtained in
considering upper and lower balance of the projection
screen. (Refer to Fig.3-2-7.)
7. If the focus or raster geometry is changed, when
tightening the screws holding the LCD mount, loosen
the screws slightly and readjust.
8. When the green LCD is replaced, the pixel matching
adjustments for the red and blue panels will be
necessary in many cases. (If the pixel matching is
obtained in above adjustment, it is not necessary.)
Accordingly, turn off the power. Remove the FPC
section of the red and blue LCDs from the PC board
connectors, and remove the red and blue LCD plate
from the LCD block.
9. Remove the red and blue LCD from the LCD plate
and mount them on new LCD plates.
10. Mount the new red and blue LCD plates on the LCD
block.
11. Perform the adjustment steps (1) – (9) described under
“Red/Blue LCD Adjustment” for each red and blue
LCD.
12. After completion of the red and blue LCD adjust-
ments, perform the steps (10) – (18) described under
“Red/Blue LCD Adjustment”.

1-10
6. Remove rubber packing (7) and filter (8) from camera
assembly.
Fig. 3-3-2
Fig. 3-3-3
3-3-3. FL lamp
1. Remove FL lamp cover and FL lamp unit.
2. Remove 2 screws (1) and FL lamp.
3. Remove 4 screws (2) and remove lower FL lamp
cover.
Screws (1)
Screws (4)
Screws (5)
Connector
(2)
Connector
(3)
Camera video
PC board
CCD
Stay (6)
Camera
assembly
Rubber
packing (7)
Filter (8)
Screws
(1)
CCD
Stay (6)
Camera video PC board
3-3. Document Camera Section
(TLP511U/E)
3-3-1. Camera Section Cover
1. Remove 5 screws (1) and remove camera section
cover.
Fig. 3-3-1
3-3-2. Camera Video PC Board and Camera
Assembly
1. Remove camera section cover. (Refer to Fig. 3-3-1.)
2. Remove 3 screws (1). (Refer to Fig. 3-3-2.)
3. Remove 1 connector (2) and remove camera assembly.
4. Remove 1 connector (3).
5. Remove 2 screws (4) and 2 screws (5), and camera
assembly can be removed from camera video PC
board.
Note:
• When 2 screws (4) are removed, stay (6) positioned
under CCD can also be removed, so care will be
necessary. (Refer to Fig. 3-3-3.)
Screws (1)
Camera section
cover
Screws
(1)

1-11
Fig. 3-3-4
3-3-4. Arm Assembly
1. Remove document camera. (Refer to Fig. 3-1-1.)
2. Remove 2 connectors (1).
3. Remove 2 screws (2) securing inverter PC board.
4. Remove 6 screws (3) securing base cover and 3 screws
(4) securing arm assembly, remove base plate, and arm
assembly.
Fig. 3-3-5
3-3-5. Switch PC Board and Inverter PC Board
1. Remove document camera. (Refer to Fig. 3-1-1.)
2. Remove arm assembly. (Refer to Fig. 3-3-5.)
3. Remove 1 screw (1) and pull out inverter PC board
from base cover. Remove 1 connector (2) and remove
inverter PC board.
4. Remove 3 screws (3) and remove switch PC board.
Fig. 3-3-6
3-3-6. Arm Position Detection Switch
1. Remove document camera. (Refer to Fig. 3-1-1.)
2. Remove arm assembly. (Refer to Fig. 3-3-5.)
3. Remove 3 screws (1) and remove arm cover.
4. Remove 2 screws (2) and 2 screws (3), and remove
metal bracket (4).
5. Remove 2 screws (5) and remove arm release lever
assembly.
6. Remove 1 screw (6) and remove arm position detec-
tion switch.
Fig. 3-3-7
Screws
(1)
Arm release
lever assembly
Screws (2)
Screws
(3)
Screws (5)
Screw (6)
Arm position
detection switch
Arm cover
Metal bracket (4)
Screws
(1)
Screws (2)
Screws (1)
Screws (2)
Arm
assembly
Lower FL cover
FL lamp unit
FL lamp cover
FL lamp
Connectors (1)
Screws
(2)
Screws
(3)
Screws (4)
Base cover
Arm
assembly
Base plate
Screw
(1)
Screws
(3)
Connector
(2)
Base cover
Switch
PC board
Invertor PC board

1-12
4. ELECTRICAL ADJUSTMENT
<Test Equipments andTest Jigs >
• Oscilloscope
• Digital voltmeter
• Adjustment software TLP511.EXE
< Input Signal List (for use of ROM:TLP511.EXE) >
• RGB signals (pedestal level)
• RGB signals (gray scale)
• RGB signals (50% APL)
• Video signal (gray scale)
• Common voltage adjustment signal (XGA)
< Connection and Setting of Personal Computer >
(1) Connection of personal computer
1) Connect a computer as shown in Fig. 4-0-1, and
then perform the adjustment using the adjustment
software TLP511.EXE. (When using a drive C,
type C: ¥TLP511.EXE and press enter key.)
Fig. 4-0-1
(2) Default status setting
1) Connect computer and boot adjustment software.
2) Set contrast & brightness at the default.
(Refer to owner’s manual)
Fig. 4-0-2 Display of computer monitor
(Normal menu)
(3) Adjustment method
1) Adjustment is carried out by using Adjust menu on
the computer monitor.
Fig. 4-0-3 Display of computer monitor (Adjust menu)
2) stands for an Adjust menu key.
After clicked shown in adjustment items, click
ALF
,
ARG
alternately to adjust to a specified value.
3) Before proceeding to each adjustment click in
IN1
Adjust menu to set RGB input. When making “1-3.
Video signal input adjustment” click
IN2
to set
video input.
VSHVSHVTNVCLVBRVCNIN3IN2
DOFDON
MOFMON
AOFAON
IN1
VUPVDW
FOFFON ARGALF
ROFRON ???DSV
PCKPPHPHPPVP
MO1 MO0MM0MM1MW0MW1
LSP LITLGRLFRLJPLEN
CSH CSL CIRCFDCFUCZDCZU
PJ3PJ2PJ1PJ0
PL0
PS1 PL1
PS2 PL2
PS3 PL3
PS4 PL4
PS4 PL4
Exit Normal Normal Adjust
TLP511 Control program for factory's adjustment V2.0
POFPON
W18W15W14 W17W16W13W12W11IN3IN2POF
DOFDON
MOFMON
AOFAON
IN1
VUPVDW
FOFFON ARGALF
ROFRON ???DSV
W24W23W22W21
W35 W36W34W33W32W31
W55 W56
W37
W57W54W53W52W51
VTG VTB VCNVTRVGBVGGVGR
W44
W25
W45
W26
W46
W27
W47W43W42W41
UIT
W28 UID
W38 UIV
W48 UIP
W58 UIA
VBR VSB
Exit Normal Adjust Adjust
TLP511 Control program for factory's adjustment V2.0
PON
RS-232C
MONITOR OUTPUT
AUDIO
CONTROL
RS-232C

1-13
< Adjustment Locations and Adjustment Items >
Fig. 4-0-4 Drive PC board (Top side)
PL010
Q309 Q308
Q307 Q305
Q602
Q610
Q614
Q615
Q616
Q619
Q618
Q617
Q604 Q703
Q705 Q702 Q704
Q402 Q404
Q410 Q414
Q415
Q419
Q417
Q416
P401
PL003
Q418
Q701
Q502 Q504
Q519
Q516
Q517 Q510
Q518
Q304
Q302 Q301 Q311
Q515
Q514
Q306
Q962
Q961
Q966
PF001
PF002
P601
TP603
TP602
TP601
T09
T23
T12
T11 T22
T06
T16
T15
T19 T20
T13
T10
T07 T02
T01
T21
T05
T04
TP503
TP501
TP301
TP302
TP401 TP402
TP502
T17 T18
T03
T08
P501
PL002
PL009
PF004
TP403
1-1. Pedestal level adjustment
1-2. Gray scale level adjustment
1-3. Video signal input level adjustment
2-2. Bias adjustment 2
2-3. Bias adjustment 3
2-1. Bias adjustment 1
2-2. Bias adjustment 2
2-1. Bias adjustment 1
PL010
Q309 Q308
Q307 Q305
Q602
Q610
Q614
Q615
Q616
Q619
Q618
Q617
Q604 Q703
Q705 Q702 Q704
Q402 Q404
Q410
Q414
Q415
Q419
Q417
Q416
P401
PL003
Q418
Q701
Q502 Q504
Q519
Q516
Q517 Q510
Q518
Q304
Q302
Q301 Q311
Q515
Q514
Q306
Q962
Q961
Q966
PF001
PF002
P601
TP602
TP601
T09
T23
T12
T11 T22
T06
T16
T15
T19 T20
T13
T10
T07 T02
T01
T21
T05
T04
TP503
TP501
TP301
TP302
TP401 TP402
TP502
T17 T18
T03
T08
P501
PL002
PL009
PF004
4-1. Reference adjustment 1
4-1. Reference adjustment 1
4-2. Reference adjustment 2
4-2. Reference adjustment 2
4-2. Reference adjustment 2
TP403
TP603
5. Vertical stripe erase adjustment
5. Vertical stripe erase adjustment
3. Bright/Contrast adjustment

1-14
Adjust Items
1. Input level adjustment
1-1. Pedestal level
adjustment
1-2. Gray scale level
adjustment
1-3. Video signal input
level adjustment
2. Bias adjustment
2-1. Bias adjustment 1
2-2. Bias adjustment 2
2-3. Bias adjustment 3
3. Bright/Contrast
adjustment
Input Signal
RGB signals
(pedestal level)
RGB signals
(gray scale)
Video signal
(gray scale)
RGB signals
(gray scale)
RGB signals
(gray scale)
RGB signals
(gray scale)
RGB signals
(gray scale)
Test
Equip-
ment
Oscillo-
scope
Oscillo-
scope
Oscillo-
scope
Digital
voltmeter
Digital
voltmeter
Digital
voltmeter
Oscillo-
scope
Test Point
T13 (R)
T15 (G)
T17 (B)
T13 (R)
T15 (G)
T17 (B)
T13 (R)
T15 (G)
T17 (B)
T04 (R)
T06 (G)
T08 (B)
T05 (R)
T07 (G)
T09 (B)
T20 (G)
T19 (G)
TP401 (R)
TP401 (R)
TP402 (R)
TP402 (R)
TP501 (G)
TP501 (G)
TP502 (G)
TP502 (G)
TP601 (B)
TP601 (B)
TP602 (B)
TP602 (B)
Adjust Key
VSB
VSB
VSB
VGR
VGG
VGB
VGR
VGG
VGB
W16
W26
W36
W15
W25
W35
W52
W53
W13
(bright)
W11
(contrast)
W14
(bright)
W12
(contrast)
W23
(bright)
W21
(contrast)
W24
(bright)
W22
(contrast)
W33
(bright)
W31
(contrast)
W34
(contrast)
W32
(bright)
AdjustValue
• See the
illustration right.
A = 1.75V ± 50 mV
A = 1.75V ± 50 mV
A = 1.75V ± 50 mV
A = 1.75V ± 50 mV
A = 1.6V ± 50 mV
A = 1.75V ± 50 mV
6V ± 20 mV
6V ± 20 mV
6V ± 20 mV
6V ± 20 mV
6V ± 20 mV
6V ± 20 mV
6V ± 20 mV
6V ± 20 mV
A = 2V ± 50 mV
B = 3V ± 50 mV
TP401 adjustment
value ± 30 mV
TP401 adjustment
value ± 30 mV
A = 2V ± 50 mV
B = 2.9V ± 50 mV
TP501 adjustment
value ± 30 mV
TP501 adjustment
value ± 30 mV
A = 2V ± 50 mV
B = 2.9V ± 50 mV
TP601 adjustment
value ± 30 mV
TP601 adjustment
value ± 30 mV
Note
• Select
VSB
and adjust until
signal shows flat.
• Click
IN2
to set video input
mode.
• Adjustment value for bias
adjustment 1:
± 10 mV
• Click
PJ0
on Normal menu to
set forward scan mode and
then start the adjustment.
Next click
PJ1
to set reverse
scan mode and perform
adjustment.
• Adjustment value for bias
adjustment 1:
± 10 mV
NG
OK
Blanking
(A)
(A)
A
B
Table 4-1-1

1-15
Adjust Items
4. Reference adjustment
4-1. Reference
adjustment 1
4-2. Reference
adjustment 2
5. Vertical stripe erase
adjustment
6. Bias adjustment
7. Common voltage
adjustment
Input Signal
RGB signals
(gray scale)
RGB signals
(gray scale)
RGB signals
(gray scale)
RGB signals
(50% APL)
Common
voltage
adjustment
signal (XGA)
Test
Equip-
ment
Digital
voltmeter
Oscillo-
scope
Oscillo-
scope
––––
––––
Test Point
T01 (R)
T02 (G)
T03 (B)
TP403 (R)
TP403 (R)
TP503 (G)
TP503 (G)
TP603 (B)
TP603 (B)
T10 (R)
T10 (R)
T11 (G)
T11 (G)
T12 (B)
T12 (B)
––––
––––
Adjust Key
W18
W28
W38
W17
W18
W27
W28
W37
W38
W46
W44
W45
W48
W51
W47
W52
W41
W42
W43
AdjustValue
6V (coarse adjustment)
6V (coarse adjustment)
6V (coarse adjustment)
A
B
A
B
A
B
A = 6.5V ± 50 mV
B = 1.5V ± 50 mV
A = 5.5V ± 50 mV
B = 1.5V ± 50 mV
A = 6.5V ± 50 mV
B = 1.5V ± 50 mV
Less apparent for
vertical stripe
Minimum flicker
Note
•Adjust for A = B as shown in
illustration belows.
(tolerance ± 20 mV)
•Click
PJ0
on Normal menu
and set forward scan mode
on, and then make adjust-
ment.
•In ceiling installation:
Set V reverse mode on (refer
to owner’s manual) and then
make adjustment in the
sameway.
A
B6V
0V
(B)
(A)

1-16
4-1. Camera Section Adjustment
(TLP511U/E)
< Before Adjustment >
In the most cases, this adjustment will be made after
replacement of electrical parts. If a failure occurs in the
electrical circuit, always locate the failure by using
required instruments, and perform the repairing, replace-
ment and the adjustment. Do not tamper the adjustment
volumes without locating the failure. Some failure may
not need readjustment, so only perform the adjustments
required in practical servicing.
< Equipment Required >
1. Personal computer
IBM PC/AT or equivalent (with Windows 95 supported)
2. Color video monitor
3. Illumination
Halogen lamp (500W x2)
4. Toshiba camera adjustment chart
Color bar chart (PN70909322)
5. Waveform monitor
6. Vector scope
7. Adjustment screwdriver
8. Color temperature conversion filter (C14)
9. Adjustment cable (PN70909447)
10. RS-232C cable (straight type)
11. Adjustment software
Note:
• If illumination unevenness exists on the adjustment chart,
correct adjustment can not be made. So arrange the
illumination equipments to obtain the flat illumination.
• Always use the adjustment chart free from dirty.
• The unit employs PAL system. So use the above
equipments for PAL system.
< Initial Setting >
1. The adjustments for the camera section are carried out
with the camera section removed from the unit.
Fig. 4-1-1
2. Set the chart facing to the camera and adjust the light
position to obtain the even light of the illumination.
Fig. 4-1-2
3. Connect the connector (PM002) on the projector and
P101 with the adjustment cable, and connect the
camera output jack to the video monitor.
4. Connect the D-SUB9 pin connector of adjustment
cable and COM1 port of the personal computer with a
RS-232C cable.
Note:
• After completion of the setting above, turn on the
powers of all the equipments and leave then for 5
minute for warming up.
< Cable Connection Diagram for Adjustment >
Fig. 4-1-3
Lens section
PC board
Lens
Camera video
PC board
P101
To Projector Adjustment
cable
D-SUB 9-pin (female)
Illumination
Chart
1 +9V
2 GND
3 RXD
4 TXD
5 MEM CONT
6Y
7 GND
8C
9 +5V
1 +9V
2 GND
3 RXD
4 TXD
5 MEM CONT
6Y
7 GND
8C
9 +5V
1CD
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9CT
12345
6789
D-SUB 9-pin connector
Within 30 cm
Within 30 cm
Within 5 cm
Projector
side
To personal
computer
Camera
side (To P101)

1-17
< Service Adjustment Software Boot Up >
1. Start the personal computer.
2. Check the camera power is on.
3. Boot up the adjustment software (K48ADJ).
4. Check a screen menu obtained on the computer
monitor.
5. Each adjustment is carried out using the adjustment
software.
The words with rectangle in the sentence show the
buttons on the display of a personal computer.
Fig. 4-1-4
Note:
If an error message will appear, check following items.
• Camera power is on.
• Camera and personal computer (COM1 port) is
connected.
< Flow Chart >
The procedures are given in order to perform entire
adjustments. Accordingly, some items may not be
required depending on a type of failure or adjustment. In
such a case, perform only the required items. However,
always perform the initial setting.
< Adjustment Locations and Adjustment Items >
Fig. 4-1-6 Lens section PC Board (Top side)
4-1-1. FB Adjustment
Note:
This adjustment should be made only when the lens is
replaced or removed from the camera PC board.
• Test point : Video output
• Test equipment : TV monitor, waveform monitor
• Adjusting point : VR4, VR5 (Lens section PC board)
• Adjusting value : Refer to below
1. Click
Test On
button. In this case, check the lens is set
to the Tele side fully.
2. Shoot an object in distance of more than 10m and
adjust the focus with VR5 on the lens section PCB.
3. Click
Test Off
button, shoot the object in distance of
more than 10m, press
Wide
button until the lens
reaches the wide end, and adjust the focus with VR4.
4. Shoot the color bar chart in distance of 30 ± 1 cm,
move the lens to the Tele end with the
Tele
button,
and adjust the focus with the
Near
button/
Far
button.
5. Keep to press
Wide
button to set the lens to the Wide
end and check the focus is not deviated. If the focus is
deviated, perform the adjustment from step 2 again.
Fig. 4-1-5
Wide Tele
Near Far
Level Adjust
Level Adjust
Level Adjust Exit...
Comport...
Reload
CCD Level
VRG Level:
VSUB Level:
IK-K48LC Adjustment
Lens FB Y Gain
WB ref.
R:
B:
-50
Y Gain:
C Gain
Test On
Test Off
-50
C Gain:
4-1-1. FB adjustment
4-1-2. CCD adjustment
4-1-3. Y gain adjustment
4-1-4. WB adjustment
4-1-5. C gain adjustment
4-1-6. Shipping setting
CCD marking
4-1-1. FB adjustment
VR4 VR5

1-18
4-1-2. CCD Adjustment
Note:
This adjustment should be made only when the CCD is
replaced. Before replacing the CCD, fill in the CCD back
side marking on the specified location of the Lens PCB.
• Test point : ––
• Test equipment : ––
• Adjusting point : ––
• Adjusting value : Refer to below.
1. Select the specified marking (figure) of CCD on the
VRG selection box on the CCD Level group of the
adjustment software and click it.
2. In the same way select the specified marking (alpha-
bet) of CCD on the VSUB selection box and click.
4-1-3. Y Gain Adjustment
• Test point : Video output
• Test equipment : TV monitor, waveform monitor
• Adjusting point : ––
• Adjusting value : 80 ± 20%
1. Shoot the color bar chart in full size of the screen. In
this case, check the white section fully occupies the
left side on the screen.
2. Insert the color temperature conversion filter C14.
3. Click the
Level Adjust
button on the Y Gain group, and
check the luminance level of the white section is
automatically set to 80 ± 20%. If not, move the chart
position so that the white section is located at left side
of the screen and then click the
Level Adjust
button
again.
4. While observing the waveform monitor, adjust Y Gain
buttons until the white level shows 80 ± 10%.
Fig. 4-1-7
4-1-4. WB Adjustment
• Test point : Video output
• Test equipment : TV monitor, vector scope, waveform
monitor
• Adjusting point : ––
• Adjusting value : Refer to below.
1. Shoot the color bar chart in full size of the screen. In
this case, make sure the white section fully occupies
the left side on the screen.
2. Insert the color temperature conversion filter C14.
3. Click the
Level Adjust
button on the WB ref. group, and
check the luminance level of the white section is
automatically set to 80 ± 10%. If not, move the chart
position so that the white section is located at left side
of the screen and then click the
Level Adjust
button
again.
4. While observing the vector scope, adjust R/B scroll
bar until the white section is located at vector center.
Fig. 4-1-8
4-1-5. C Gain Adjustment
• Test point : Video output
• Test equipment : TV monitor, vector scope, waveform
monitor
• Adjusting point : ––
• Adjusting value : Refer to below.
1. Shoot the color bar chart in full size of the screen. In
this case, make sure the white section fully occupies
the left side on the screen.
2. Insert the color temperature conversion filter C14.