Mitsubishi S290U User manual

MODEL
S290U
LCD PROJECTOR
LC19 CHASSIS
CAUTION
Before servicing this chassis, it is important that the service person reads the “SAFETY PRECAUTIONS” and “PRODUCT
SAFETY NOTICE” in this service manual.
SPECIFICATIONS
2001
• Power Input
• Rated Input
• LCD Panel
• Projection Lens
• Light Source
Lamp
• Picture Size
• Speaker
• S-Video Input
• Video Input
• Audio Input
• Analog RGB
Input
• Cabinet
Dimensions
• Weight
• Length of
Power Cord
: AC 100 to 240 V ; 50 / 60 Hz
: 2.9 A
: 1.3 inch LCD panel: 3 pieces (for R,G,B)
Pixels 800 ×600= 480,000 pixels
Total 1,440,000 pixels
Active pixel rate: 99.99 % or more
(each panel)
: F 1.8 to 2.2 f = 52 to 66 mm
: 190 W NSH
: aspect ratio 4:3 40 to 300 inch
: 2.36”square type (8 Ω2 W), 2 pcs.
: Luminance signal: 1.0 V(p-p) 75 Ω
(negative sync.)
Chroma signal: 0.286 V(p-p) 75 Ω
(burst signal)
: 1.0 V(p-p) 75 Ω(negative sync.)
: 350 mV(rms), 10 kΩor more
: Mini D-SUB 15P
RGB: 0.7 V(p-p) 75 Ω(negative sync.)
YC
B C R : 1.0 V(p-p)(Y) (negative sync.)
CBCR: 0.7 V(p-p)
HD/CS: TTL level (positive or negative)
VD: TTL level (positive or negative)
: 11.8”(W) ×5”(H) ×14.4”(D)
(299 ×127 ×367 mm)
(Legs and lens are not included.)
: Approx. 13.2 lbs (6.0 kg)
: 114 inch (2.9 m)
•Weight and dimensions shown are approximate.
•Design and specifications are subject to change without notice.
MITSUBISHI ELECTRIC
Copyright C2001 Mitsubishi Electric Corporation All Rights Reserved.
MITSUBISHI

This product is provided with the self-diagnosis function. In case of any abnormality, the LED at the top of the product will
indicate the errors.
Diagnosis method : Every time the main power is turned on, the SW is turned on and each sensor is checked for any
errors in 4 seconds. The POWER LED remains red during the check.
Diagnosis result indication : LED indication and failures are shown in the following table. LED can be reset “automatically” or
“by turning on/off of the main power” when the fault detection is finished.
--- : LED off Orange : Both Red and Green light
Red flash N :
The cycle that Red flashes N times and goes out for fixed time is repeated.
DIAGNOSIS INFORMATION
Preferen-
tial order
1
Symptom
The front fan
stops.
The front fan
is operating.
No power-on
Failure
AC system (Primary
power source) failure
STBY power
Microcomputer is not
operating
PI0 is not operating
Main
Power
Main
Power
Main
Power
Main
Power
POWER
MAIN
INLET
POWER
PFC
MAIN
MAIN
STBY5 (SD 2pin),
STBY3.3 (SD 6pin or
TPST3.3),
STBY2.5 (TPST2.5)
IC417 (RESET),
X403 (100MHz),
X402 (40MHz)
IC7A0 (PIO0)
SCL3, SDA3
MEMBRANE failure Main
Power
MAIN
MENBRANE
ST Connector,
Replace the Membrane switch
IIC bus failure
(EEPROM) AutoMAIN IC414 (EEPROM) SCL1, SDA1
Reset
Check Point
PCB Reference
LED Indication
POWER
--- --- ---
2
Red/Green
alternately
Green Red
No power-on PI01 operation failure
IIC bus failure
Main
Power
MAIN IC7A2 (PIO1)
SCL3, SDA3
Red/Green
alternately
Green Red
flash
No power-on PI02 operation failure
IIC bus failure
Main
Power
MAIN IC7A3 (PIO2)
SCL3, SDA3
Red/Green
alternately
Green Red
flash 2
No power-on PI03 operation failure
IIC bus failure
Main
Power
POWER SUB
IC9A5 (PIO3)
SCL3, SDA3
Red/Green
alternately
Green Red
flash 3
No power-on PI04 operation failure
IIC bus failure
Main
Power
AUDIO/MOTOR
IC9W0 (PIO4)
SCL3, SDA3
Red/Green
alternately
Green Red
flash 4
No power-on PI05 operation failure
IIC bus failure
Main
Power
TERMINAL IC305 (PIO5)
SCL3, SDA3
Red/Green
alternately
Green Red
flash 5
3
No power-on STBY power failure Main
Power
POWER SUB
MAIN
TERMINAL
SP Connector
STBYR5 (SP 6pin)
Red/Green
alternately
Orange Red
flash
No power-on SW power failure 3 Main
Power
POWER
MAIN
SD Connector
SW3.3 (SD 8pin)
Red/Green
alternately
Orange
Red
flash
2
LAMP TEMP
LED Error Indication List
1

Preferen-
tial order
Symptom
No power-on
Failure
SW power failure 2
Main
Power
POWER SUB
AUDIO/MOTOR
MAIN
SP Connector
SW5A (SP 2pin)
SW12 (SP 4pin)
STBY12 (SP 7pin)
Reset
Check Point
PCB Reference
LED Indication
POWER
3
Red/Green
alternately
Orange
Red
flash
3
No power-on SW power failure 1
Main
Power
POWER SUB
MAIN
SC Connector
SW15.5 (SC 2pin)
SW12 (SC 4pin)
SW5A (SC 6pin)
Red/Green
alternately
Orange Red
flash 4
No power-on
FAN STOP : Intake fan
(bottom)
Main
Power
AUDIO/MOTOR MH Connector
Red/Green
alternately
Red Red
flash
No power-on
FAN STOP : Exhaust fan
Main
Power
AUDIO/MOTOR MK Connector
Red/Green
alternately
Red Red
flash 2
No power-on
FAN STOP : Intake fan
(front)
Main
Power
POWER SUB NA Connector
Red/Green
alternately
Red Red
flash 3
No power-on
LAMP COVER open
(POWER-ON prohibited
for safety)
Auto POWER SUB
NX Connector (3pin)
LAMP COVER
Red/Green
alternately
--- ---
No power-on
FILTER COVER 1 open
(for dust-in prevention)
Auto POWER SUB
NX Connector (5pin)
FILTER COVER (Bottom)
Red/Green
alternately
--- ---
No power-on
FILTER COVER 2 open
(for dust-in prevention)
Auto POWER SUB
NY Connector (2pin)
FILTER COVER (Front)
Red/Green
alternately
--- ---
5
No power-on
Missing thermistor (Lamp) AutoMAIN SZ Connector (8pin)
Red/Green
alternately
--- Red
flash
6
No power-on
IIC bus failure (Decoder) AutoMAIN IC2A2 (DECODER)
SCL2, SDA2
Red/Green
alternately
Green Red
flash 6
7
No power-on
High intake air temperature
(outside air temperature)
Auto
Room temperature not
conforming to the
specification.
No power-on
after power-
off during
power-on
High intake air
temperature (outside air
temperature)
Auto
Room temperature not
conforming to the
specification.
Red --- Red
flash
No power-on
after power-
off during
power-on
High temperature around
the Lamp
Auto Covered vent Red ---
Red
flash
2
No power-on
after power-
off during
power-on
High temperature around
the PBS (LCD)
Auto
Clogged intake at the
bottom.
Red ---
Red
flash
3
Warning
indicated by
the LED
during STBY
Warning that the end of
Lamp's life span is near
(1500 to 2000h)
Manual Not a malfunction Red Red
flash ---
Warning
indicated by the
LED during
power-on
Warning that the end of
Lamp's life span is near
(1500 to 2000h)
Manual Not a malfunction Green
Red/Green
alternately
---
No power-on
power-on prohibited due
to the end of Lamp's life
span (more than 2000h)
Manual
Replace the lamp and reset the lamp time.
(Press the “POWER”, “”and “”
buttons at the same time.)
Red Red ---
No power-on
after power-
off during
power-on
Much difference of the
intake air temperature and
the temperature around
the PBS (closed inlet)
Auto
Clogged intakes
(front , bottom)
Red ---
Red
flash
4
8
9
4
LAMP TEMP
2

This projector can be controlled by connecting a personal computer with RS-232C terminal.
Functions can be controlled by a personal computer:
•Turn the ON or OFF
•Changing input signals
•Button input by remote control or control panel
•Reading warning data
•Menu setting
Connection
Projector + IBM PC or IBM PC compatibles
Note: If your PC (IBM or IBM compatible) is equipped only with a 25-pin serial port connector, a 25-pin serial port adapter is
required. Contact your dealer for details.
CONTROL THIS PROJECTOR BY USING A PERSONAL COMPUTER
RS-232C cable
to RS-232C
terminal
to Com1
Comport
D-SUB 9P D-SUB 9P
to RS-232C
terminal
RS-232C adaptor
for Macintosh (option)
to modem port
or printer port
D-SUB 9P D-SUB 9PD-SUB 9PMini DIN 8P
PROTOCOL RS-232C
BAUD RATE 9600 [bps]
DATA LENGTH 8 [bits]
PARITY BIT NONE
STOP BIT 1 [bits]
FLOW CONTROL NONE
1) Interface
This projector uses RXD,TXD and GND lines for RS-232C control.
For RS-232C cable, the reverse type cable should be used.
2) Control command diagram
` The command is structured by the address code, function code, data code and end code. The length of the command is
different by each function.
[Address code] 30h 30h (In ASCII code,‘0’‘0’) fixed.
[Function code] A code of each fixed control move.
[Data code] A code of each fixed control data (number) and not always indicated.
[End code] 0Dh (In ASCII code, ‘’)fixed.
Address code Function code Data code End code
HEX 30h 30h Function Data 0Dh
ASCII ‘0’‘0’Function Data
3

3) Warning commands
Read the past warning data.The personal computer doesn’t attach the data code onto the warning commands to send.
On the other hand, the projector which has received a command attaches the warning data as the data code to reply.
The past data
Ep* (*is 7 digits, hexadecimal notation)
*= (MBS) b1, b2, b3, b4, b5, b6, b7, b8, b9, b10, b11, b12, b13, b14, b15, b16, b17, b18, b19, b20, b21, b22, b23, b24, b25, 0,
0, 0 (LSB)
b1=Operation time (during boot up ‘0’/ when the power is ON, ‘1’)
b2=Communication error between microcomputer and IC PIO1
b3=Communication error between microcomputer and IC PIO2
b4=Communication error between microcomputer and IC PIO3
b5=Communication error between microcomputer and IC PIO4
b6=Communication error between microcomputer and IC PIO5
b7=Stand-by power short
b8=Switch power short (SC connector)
b9=Switch power short (SP connector)
b10=Switch power short (SD connector)
b11=The air inlet fan is stopped
b12=The air outlet fan is stopped
b13=The power fan is stopped
b14=The audio fan is stopped (This fan is not installed.)
b15=The lamp cover is not closed
b16=The filter cover (bottom) is not closed
b17=The filter cover (front) is not closed
b18=The temperature sensor is off (SZ connector)
b19=Communication error between microcomputer and decoder
b20=Abnormal temperature (outside)
b21=Abnormal temperature (lamp)
b22=Abnormal temperature (LCD)
b23=Abnormal temperature (The difference value of lamp from outside)
b24=The life of a lamp
b25=The lamp is not illuminating.
[Example 1] The outlet fan was down when the power was ON and the newest past data of the warning was confirmed.
* : ‘8’‘2’‘0’‘0’‘0’‘0’mean the numbers as shown below
b1=1 (The power is ON), b12=1 (The outlet fan is stopped), Other=0
ASCII HEX
past data 1 (newest) Ep1 45h 70h 31h
past data 2 Ep2 45h 70h 32h
past data 3 Ep3 45h 70h 33h
clear past data Ec 45h 63h
Sending commands
from the PC etc.
Status code from
projector Meaning
30 30 45 70 31 OD
‘0’‘0’‘E’‘p’‘1’‘’ Command to confirm past data
30 30 45 70 38 30 31 30 30 30 30 OD
‘0’‘0’‘E’‘p’‘1’‘8’‘0’‘1’‘0’‘0’‘0’‘0’‘’*
Warning command (Outlet fan is stopped when
the power is ON) carried out
Bit b1 b2 b3 b4 b5 b6 b7 b8 b9 b10 b11 b12 b13 b14 b15 b16 b17 b18 b19 b20 b21 b22 b23 b24 b25 000
ASCII 1 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0000
HEX 8010000
4

5
PCGC Ver.6 has two versions, for XGA screen and for SVGA screen. Only the sizes of the letters in the dialog boxes are
different between them. Choose either version depending on the monitor screen of the personal computer.
USING THE WARNING HISTORY RECOGNITION SOFTWARE (PCGCe Ver.6)
1. Before starting-up the program
1. Connect the projector to the personal computer with the attached RS-232C cable.
2. Copy the folder [PCGC6E] in the CD-ROM drive into the [Windows] folder in the Windows drive.
2. Start-up of the program
1. Double-click the [Windows] folder copied in the Windows drive and the file [PCGC6E(XGA).exe] or [PCGC6E(SVGA).exe] to
start up the program.
2. After the start-up, the program opens the serial port and starts corresponding with the projector, in accordance with the
specifications.
3. Recognizing of the warning data
After the program starting, the warning data will be automatically recognized from the projector and indicated on the Main
Dialogue.
An error item on the screen will be displayed in red and a corresponding check box will be marked. If the warning data is not
correctly recognized, there will be no indication.
4. [CURRENT ERROR] button
For recognition of the latest warning data.
5. [History1] button
For recognition of the previous warning data by one.
6. [History2] button
For recognition of the previous warning data by two.
7. [CLEAR] button
Press the [CLEAR] button to send the command to the
projector and clear the warning history.
8. [DETAIL] button
Details of an error are displayed on the NotePad. You can
save them with a new name.
9. Occurrence of correspondence error
Check the main power of the projector and the Comm. port which is connected with the cable in case of communication error or
no response from the projector.
10. Termination of the program
Press the [CLOSE] button to terminate the program.
Main Dialogue
CURRENT ERROR HISTORY 1
CLOSEDETAILCLEAR
HISTORY 2

ELECTRICAL ADJUSTMENTS
HDISP
HP
HBP
HDW VDISP
VP
VBP
VDW
HD signal VD signal
Program
Pattern
No.
01 White Raster
03 Green Raster
12 White Raster 50%
15 Every other Horizontal Line (Red)
16 Every other Horizontal Line (Green)
17 Every other Horizontal Line (Blue)
35 SMPTE (R)
36 SMPTE (G)
37 SMPTE (B)
DOT-CLOCK [MHz] 40.0 VP [H] 628
HP [DOT] 1056 VDISP [H] 600
HDISP [DOT] 800 VDW [H] 4
HDW [DOT] 128 VBP [H] 23
HBP [DOT] 88 Interlace ---
Signal Polarity HD : +, VD : +
Program ROM : LC12 Ver. 1.2 Timing of SVGA signal (Vertical Frequency 60Hz)
H Timing V Timing
SVGA
Signal
Generator
this PROJECTOR
(S290U)
Personal
Computer
Monitor for
Personal
Computer
RS-232C Cable
RS-232C Input
Terminal
COMPUTER IN
Terminal
1
Use communication program [Hyper Terminal] of Microsoft®Windows®
95 Operating system for every circuit adjustment of this product.
Either Windows®95 or Windows®98 can be applied to the ones
described as Microsoft®Windows®95.
¢¢Necessary Equipment and Connecting
Connect the following equipment as shown in the right figure.
•this PROJECTOR (S290U)
•Personal Computer (with Microsoft®Windows®95 Operating
System)
•RS-232C Cable
•SVGA Signal Generator (Equivalent to VG-814)
•Monitor for Personal Computer
¢¢Test Signal
•SVGA signal (Vertical frequency 60Hz)
The timing and patterns for the adjustment are as follows :

¢¢Adjustment with Microsoft®Windows®95 Operating System
1. Starting
1. Start Windows95.
2. Double click [Accessories] folder.
3. Double click [Hyper Terminal] folder.
4. Double click [HyperTrm] icon.
2. Hyper Terminal Setting
1. Click [Properties] in File menu on the Hyper
Terminal window.
[Connection Properties] window will open.
Set as follows on this window.
2. Click [Call] in communication menu on the
window to connect this PROJECTOR.
3. Adjustment
Enter the adjustment command and the adjustment value on the Hyper Terminal window in small alphanumeric letters with
keyboard and press the enter key.
4. Writing Adjustment Value
Enter the writing command and the adjustment value on the Hyper Terminal window in small alphanumeric letters with keyboard
and press the enter key.
Note: This operation is not necessary for adjustment 1 (Clamp Level) and 2 (A/D Convertor) of automatic adjustment.
5. Close Window
Click the closing button placed upper right of the window to close the Hyper Terminal.
Close Windows95 after closing all opened windows.
2
Item Setting
Connect using Port (COM1-COM4)
Port settings : Bits per second 9600
: Data bits 8 bit
: Parity None
: Stop bits 1
: Flow control None
Settings : Emulation VT100
ASCII setup : ASCII Sending Send line ends with line feeds
Echo typed characters locally
Line delay : 1000 milliseconds
Character delay : 10 milliseconds
: ASCII Receiving
Append line feeds to incoming line ends

Adjustment purpose [A/D Pre-Amplification Circuit]
1. Clamp Level
Symptom when
incorrectly adjusted
Measuring
instrument
Test point
EXT trigger
Measurement
range
Input signal
Input terminal
To set DC level of a picture signal to be entered to A/D converter.
Monochrome picture has a color tint.
---
---
---
---
SVGA signal
(Green,No.03)
COMPUTER IN terminal
* Enter the adjustment command in small alphanumeric letters.
1. Connect this PROJECTOR to a personal computer (with MicrosoftWindows
95 Operating System). (Refer to the figure on P.1)
2. Start MicrosoftWindows95 in the personal computer.
3. Start the communication program [Hyper Terminal] in MicrosoftWindows 95
to open the window. (For setting, refer to Hyper Terminal setting on P.2)
COMPONENT VIDEO
4. Supply an SVGA signal (Green, No. 03).
5. Enter [00~71] (VIDEO input clamp adjustment command) to the Hyper
Terminal window and automatic adjustment will start.
6. The return command [00~7111] is displayed on the Hyper Terminal Window
after the adjustment. The last 2 figures of the return command indicate the
adjustment result and each figure corresponds to R-Y and B-Y. The figure, 1
means the adjustment has been successful. The figure, 0 means that the
adjustment has failed caused by faults on PCBs, wrong signals or wrong input
selection.
Adjustment Procedures
3

Adjustment purpose [A/D Pre-Amplification Circuit]
2. A/D Convertor
Symptom when
incorrectly adjusted
Measuring
instrument
Test point
EXT trigger
Measurement
range
Input signal
Input terminal
To set amplitude of a video signal to be entered to A/D converter.
Monochrome picture has a color tint.
---
---
---
---
SVGA signal
(White 100%, No. 01)
COMPUTER IN terminal
* This adjustment must follow item 1 (Clamp Level).
* Enter the adjustment command in small alphanumeric letters.
1. Connect this PROJECTOR to a personal computer (with MicrosoftWindows
95 Operating System). (Refer to the figure on P.1)
2. Start MicrosoftWindows95 in the personal computer.
3. Start the communication program [Hyper Terminal] in MicrosoftWindows 95
to open the window. (For setting, refer to Hyper Terminal setting on P.2)
RGB
4. Supply an SVGA signal (White 100%, No. 01).
5. Enter [00~5] (A/D adjustment command) to the Hyper Terminal window and
automatic adjustment will start.
6. The return command [00~5111] is displayed on the Hyper Terminal Window
after the adjustment. The last 3 figures of the return command indicate the
result of adjustment and each figure corresponds to R, G, and B. in order. The
figure, 1 means that the adjustment has been successful. The figure, 0 means
that the adjustment has failed caused by faults on PCBs, wrong signals or
wrong input selection.
4