Sanyo PLC-XU22E User manual

FILE NO.
Notice
CORRECTION ●PRODUCTION CHANGE
SERVICE FLASH ADD INFORMATION
REVISION-3
Please add this notice to the Service Manual listed below.
NOTE: Match the Service Ref. No. on the unit’s back cover with the Service Ref. No. in the
Service Manual.
If the Service Ref. No. does not match the unit’s, additional Service Literature is
required.This chassis is similar to the Service Ref No. PLC-XU22E-00/PLC-XU22B-00.
Only the Difference Service Information is given in this manual. For detail Service
Information, Refer to the Original Service Manual and Notices for Model PLC-
XU22E/PLC-XU22B.
PRODUCT CODE
(PB6GC) PLC-XU22E: 1 122 069 06
(PB6JC) PLC-XU22B: 1 122 069 08 REFERENCE NO. SM5110055-03
Give complete “Service Ref.No.” for parts
order or servicing, it is shown on the rating
sheet on the cabinet of the projector.
Category : Multi-media Projector Issued Date : December / 2000
PLC-XU22E-04
Model : PLC-XU22E/PLC-XU22B Effective from : Service Ref. No. PLC-XU22B-03
Destination : Europe, Asia, Africa/U.K REF. NO. : SM5110055

-2-
■Specifications
Projector Type Multi-media Projector
Dimensions (W x H x D) 239mm x 90mm x 323mm
Net Weight 4.0 kg
LCD Panel System 0.9”TFT Active Matrix type, 3 panels
Panel Resolution 1024 x 768 dots
Number of Pixels 2,359,296 (1024 x 768 x 3 panels)
Color System 6 color system (PAL, SECAM, NTSC, NTSC4.43, PAL-M and PAL-N)
Scanning Frequency H-sync. 15 ~ 100kHz, V-sync. 50 ~ 100Hz
Projection Image Size (diagonal) Adjustable from 30” to 300”
Horizontal Resolution 800 TV lines
Projection Lens F1.7 ~ 2.0 lens with f33.2mm ~ 43.1mm Motor zoom and focus
Throw Distance 1.4m ~ 10.8m
Projection Lamp 150watt type
AV Input Jacks RCA Type x 1 (Video, Audio R and L) and DIN 4 pin (S-Video) x 1
Computer Input Jack (VGA) HDB15 Terminal x 1
Control Port Jack DIN 8 pin x 1
Monitor Output Jack (VGA) HDB15 Terminal x 1
Computer Audio Input Jack Mini Jack (stereo)
Audio Output Jack Mini Jack (stereo)
Internal Audio Amp. 1W RMS (monaural)
Built-in Speaker 1 speaker, 40mm x 30mm
Feet Adjustment 0˚ to 10˚
Voltage AC 200 ~ 240V, 50/60Hz
Power Consumption 1.4A (Max.Ampere)
Operating Temperature 5˚C ~ 35˚C
Storage Temperature -10˚C ~ 60˚C
Remote Control Transmitters Wireless Remote Control with Laser Beam (Class II Laser)
Max. Output 1mW/Wave length 650 ±20nm, batteries (2) AA type.
●The specifications are subject to change without notice.

-3-
■Adjustments after Parts Replacement
● : Adjustment necessary ❍ : Check necessary
Convergence Adjustment
R-Convergence adjustment ●●
B-Convergence adjustment ●●
Integrator Lens Adjustment ●
Contrast Adjustment
R-Contrast adjustment ●
G-Contrast adjustment ●
B-Contrast adjustment ●
Output voltage adjustment ●
Pedestal adjustment
R-pedestal adjustment ●
G-pedestal adjustment ●
B-pedestal adjustment ●
Offset adjustment
R-offset adjustment ●
G-offset adjustment ●
B-offset adjustment ●
Video gain adjustment-[CG/MCI]
CG-video gain adjustment ●
MCI-video gain adjustment ●
Video gain adjustment-[AV]
R-video gain adjustment ●
G-video gain adjustment ●
B-video gain adjustment ●
Video center adjustment
R-video center adjustment ●●
G-video center adjustment ●●
B-video center adjustment ●●
PSIG Adjustment ●●
Gamma off video adjustment
CG-gamma off video adjustment ●●
AV-gamma off video adjustment ●●
CG/MCI/AV-video adjustment-1
CG-video adjustment ●●
R-video adjustment ●●
B-video adjustment ●●
CG/MCI/AV-video adjustment-2
CG-video adjustment ●●
MCI-video adjustment ●●
AV-video adjustment ●●
S/H clock adjustment ●●
Common center adjustment
R-common center adjustment ●●●
G-common center adjustment ●●●
B-common center adjustment ●●●
White balance adjustment
CG-white balance adjustment ❍❍❍ ❍❍❍
MCI-white balance adjustment ❍❍❍ ❍❍❍
AV-white balance adjustment ❍❍❍ ❍❍❍
Black balance adjustment ❍❍❍ ❍❍❍
White Uniformity Adjustment ❍❍❍ ❍❍❍
Disassembly / Replaced Part
LCD Panel
RG B
Integrator
lens Polarized glass
RGB
Main Comp. Board
ABCD
Optical AdjustmentsElectrical Adjustments
P.F.C
Board

-4-
■LCD Panel Replacement
● LCD PANEL REMOVAL
1. Remove the cabinet top following to “Mechanical Disassemblies”.
2. Remove 3 screws (A) by using 2.0mm hex driver, and then pull the prism/panel ass’y out from the optical base.
3. Remove 4 screws (B) to take off the LCD panel from the prism/panel ass’y.
When the LCD panel is replaced, it is required to re-adjust the white balance, convergence and common center
adjustments, and white uniformity adjustment if required. (Refer to the Optical and Electrical adjustments.)
Caution: Do not remove 3 panels (R,G,B) at the same time as it is necessary the standard panel for adjustment.Do
not fasten the screws with excessive force when mounting the LCD panel, otherwise focus adjustment
may be shifted.
COMBINATION-(1)
COMBINATION-(2)
PART NO. SERVICE PART NO.
R-LCD PANEL LCX029CRT-7 645 043 4228
G-LCD PANEL LCX029CST-8 645 043 4211
B-LCD PANEL LCX029CRT-6 645 043 4235
PART NO. SERVICE PART NO.
R-LCD PANEL LCX029CST-7 645 043 4259
G-LCD PANEL LCX029CRT-8 645 043 4242
B-LCD PANEL LCX029CST-6 645 043 4266
A
A
B
B
Prism Ass’y
B-LCD Panel
G-LCD
Panel
R-LCD
Panel
PART NO.
LOT NO.
Prism Ass’y
LCX029CST-7
0230123
When replacing the LCD panel, confirm the indication of the LCD panel, then replace the correct LCD panel.
Select either combination (1) or (2) when in combine the R, G and B LCD panel.
There is no combination to be used except them.
● NOTE ON LCD PANEL REPLACEMENT

-5-
■Electrical Adjustments
● Service Adjustment Menu Operation
Service Mode
10 15
Video
Version : 1.0
Item Data
10 15
Normal mode Service mode
Adjustment
Item No. Adjustment Data Value
Item Data
IC302 on the main board-A stores the data for the
service adjustments, and should not be replaced
except for the case of defective device.
If replaced, it should be performed the re-adjustments
following to the “Electrical Adjustments”.
The lamp replacement monitor timer is stored in the
IC302, and it can be confirmed at the item no. 36 of
service mode.
Please note that the lamp replacement monitor timer
is reset when the memory IC (IC302) is replaced.
(Lamp replacement monitor time can not be set to the
previous value.)
● Caution to memory IC replacement
When IC302 is replaced with new one, the CPU writes
down the default data of the service adjustments to
the replaced IC, refer to the service adjustment table.
As these data are not the same data as factory
shipped data, it should be required to perform the re-
adjustments following to the “Electrical Adjustments”.
Please note that the lamp replacement monitor timer
is reset.
● Caution of Main Board replacement (in the case
IC302 is not defective)
When the main board-A is replaced, IC302 should be
replaced with the one on previous main board. After
replacement, it should be required to perform the re-
adjustments following to the “Electrical Adjustments”.
In this case, the lamp replacement monitor timer and
the white uniformity compensation data can be kept
the value as before.
● Memory IC Replacement
To enter the service mode
To enter the “Service Mode”, press and hold the MENU and NORMAL button on the projector for more than 3
seconds.The service mode display appears on the screen as follows.
To adjust service data
Select the adjustment item no. by pressing the pointer ▲ or ▼button, and change the data value by pressing the
VOLUME + or VOLUME - button.Refer to the “Service Adjustment Data Table” for further description of adjustment
item no. and data value.
To exit the service mode
To exit the service mode, press any of the POWER ON-OFF, MENU, MODE, FOCUS or ZOOM buttons on the
projector or remote control unit.

-6-
Electrical Adjustments
After replacing the Power Board, PF.C.Board, readjust
the Output voltage adjustment as follows.
1. Connect a digital voltmeter to pins 1 (+) and 3 (-) of
K6C.
2. Adjust the voltage by using VR01 as following.
AC Input Reading
230V 380V ±2V
120V 372V ±2V
Caution:
Be sure to connect the lamp when taking this
adjustment.
OUTPUT VOLTAGE ADJUSTMENT
●Circuit Adjustments
CAUTION: The each circuit has been made by the fine adjustment at factory. Do not attempt to adjust the
following adjustments except requiring the readjustments in servicing otherwise it may cause loss of
performance and product safety.
[Adjustment Condition]
●Input signal
Video signal ..................1.0Vp-p/75Ωterminated, 16 steps gray scale or color bar pattern
Computer signal............0.7Vp-p/75Ωterminated, 16 steps gray scale pattern (XGA)
MCI signal * ..................16 steps gray scale pattern from PC Card
●Picture control mode ---------- “NORMAL” mode unless otherwise noted.
Note:
* Please refer to “Service Adjustment Menu Operation” for entering to the service mode and adjusting the service
data.
* It is not available the MCI mode for model which does not provide the PC Card slot.
Presetting
1. Receive the 16-step grey scale video signal.
2. Set to VIDEO mode.
[R-PEDESTAL ADJUSTMENT]
3. Connect an oscilloscope to test point “TP221R” (+)
and chassis ground (-).
4. Enter to the service mode, select item no. “27” and
change data value to adjust the pedestal level and
black level to be same level.
[G-PEDESTAL ADJUSTMENT]
5. Connect an oscilloscope to test point “TP221G” (+)
and chassis ground (-).
6. Select item no. “28” and change data value to adjust
the pedestal level and black level to be same level.
[B-PEDESTAL ADJUSTMENT]
7. Connect an oscilloscope to test point “TP221B” (+)
and chassis ground (-).
8. Select item no. “29” and change data value to adjust
the pedestal level and black level to be same level.
Pedestal level = Black level
PEDESTAL ADJUSTMENT

-7-
Electrical Adjustments
[CG-VIDEO GAIN ADJUSTMENT]
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
3. Connect an oscilloscope to test point “TP2221G” (+)
and chassis ground (-).
4. Enter to the service mode, select item no. “48” and
change data value to adjust “a” to be 1.10 ±0.01Vp-p.
[MCI-VIDEO GAIN ADJUSTMENT] *
5. Receive the 16-step grey scale MCI signal.
6. Set to MCI mode.
7. Connect an oscilloscope to test point “TP2221G” (+)
and chassis ground (-).
8. Enter to the service mode, select item no. “48” and
change data value to adjust “a” to be 1.10 ±0.01Vp-p.
VIDEO GAIN ADJUSTMENT-[CG/MCI]
1. Receive the 16-step gray scale video signal.
2. Set to COMPUTER mode.
[R-OFFSET ADJUSTMENT]
3. Connect an oscilloscope to test point “TP2211R” (+)
and chassis ground (-).
4. Enter to the service mode, select item no. “45” and
change data value to adjust the pedestal level and
black level to be same level.
[G-OFFSET ADJUSTMENT]
5. Connect an oscilloscope to test point “TP2221G” (+)
and chassis ground (-).
6. Select item no. “46” and change data value to adjust
the pedestal level and black level to be same level.
[B-OFFSET ADJUSTMENT]
7. Connect an oscilloscope to test point “TP2231B” (+)
and chassis ground (-).
8. Select item no. “47” and change data value to adjust
the pedestal level and black level to be same level.
Pedestal level = Black level
OFFSET ADJUSTMENT-[CG]
Pedestal level = Black level
(a)

-8-
Electrical Adjustments
Presetting
1. Receive the 16-step grey scale video signal.
2. Set to VIDEO mode.
[R-VIDEO GAIN ADJUSTMENT]
3. Connect an oscilloscope to test point “TP2211R” (+)
and chassis ground (-).
4. Enter to the service mode, select item no. “49” and
change data value to adjust “a” to be 1.10 ±0.01Vp-p.
[G-VIDEO GAIN ADJUSTMENT]
5. Connect an oscilloscope to test point “TP2221G” (+)
and chassis ground (-).
6. Enter to the service mode, select item no. “50” and
change data value to adjust “a” to be 1.10 ±0.01Vp-p.
[B-VIDEO GAIN ADJUSTMENT]
7. Connect an oscilloscope to test point “TP2231B” (+)
and chassis ground (-).
8. Enter to the service mode, select item no. “51” and
change data value to adjust “a” to be 1.10 ±0.01Vp-p.
Pedestal level = Black level
(a)
VIDEO-GAIN ADJUSTMENT-[AV]
Presetting
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
[R-VIDEO CENTER ADJUSTMENT]
3. Connect a digital voltmeter to test point “TP511” (+)
and chassis ground (-).
4. Adjust voltage to be 7.30 ±0.05V by using VR501.
[G-VIDEO CENTER ADJUSTMENT]
5. Connect a digital voltmeter to test point “TP512” (+)
and chassis ground (-).
6. Adjust voltage to be 7.30 ±0.05V by using VR531.
[B-VIDEO CENTER ADJUSTMENT]
7. Connect a digital voltmeter to test point “TP513” (+)
and chassis ground (-).
8. Adjust voltage to be 7.30 ±0.05V by using VR561.
VIDEO CENTER ADJUSTMENT
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
3. Connect an oscilloscope to test point “TP2571” (+)
and chassis ground (-).
4. Adjust “a” to be 0.5 ±0.1V by using VR1971 and “b” to
be 10.0 ±0.1V by usingVR1972.
(a) (b)
PSIG ADJUSTMENT
[GAMMA OFF ADJUSTMENT-CG]
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
3. Connect an oscilloscope to test point “TP512” (+) and
chassis ground (-).
4. Enter to the service mode, select item no. “0” and
change data value to adjust “a” to be 1.40 ±0.01Vp-p.
[GAMMA OFF ADJUSTMENT-AV]
5. Receive the 16-step gray scale video signal.
6. Set to VIDEO mode.
7. Connect an oscilloscope to test point “TP512” (+) and
chassis ground (-).
8. Enter to the service mode, select item no. “0” and
change data value to adjust “a” to be 1.50 ±0.01Vp-p.
GAMMA OFFVIDEO ADJUSTMENT
(a)

-9-
Electrical Adjustments
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
3. Connect an oscilloscope to test point “TP512” (+)
and chassis ground (-).
4. Enter to the service mode, select item no. “3” and
change data value to adjust “a” to be maximum.
(a)
S/H CLOCK ADJUSTMENT
Presetting
1. Input the 16-step gray scale video signal, MCI signal
and computer signal.
[CG/MCI/AV-VIDEO ADJUSTMENT] *
2. Connect an oscilloscope to test point “TP512” (+)
and chassis ground (-).
3. Enter to the service mode, select item no. “15” and
change data value to adjust “b” to be 1.5Vp-p at
each VIDEO, MCI and COMPUTER mode.
4. Select COMPUTER and MCI mode, select item no.
“12” and change data value to adjust “a” to be 4.0
±0.01Vp-p.
5. Select VIDEO mode, select item no.“12” and change
data value to adjust “a” to be 4.0 ±0.01Vp-p.
[R-VIDEO ADJUSTMENT]
6. Connect an oscilloscope to test point “TP511” (+)
and chassis ground (-).
7. Enter to the service mode and select COMPUTER
mode.
8. Select item no. “13” and change data value to adjust
“a” to be 4.0 ±0.01Vp-p.
9. Select VIDEO mode and item no. “13” and change
data value to adjust “a” to be 4.0 ±0.01Vp-p.
[B-VIDEO ADJUSTMENT]
10.Connect an oscilloscope to test point “TP513” (+)
and chassis ground (-).
11.Enter to the service mode and select COMPUTER
mode.
12.Select item no.“14” and change data value to adjust
“a” to be 4.0 ±0.01Vp-p.
13.Select VIDEO mode and item no. “14” and change
data value to adjust “a” to be 4.0 ±0.01Vp-p.
(a)
(b)
black level
white level
white level
CG/MCI/AV VIDEO ADJUSTMENT-1
[CG-VIDEO ADJUSTMENT-2]
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
3. Connect an oscilloscope to test point “TP512” (+)
and chassis ground (-).
4. Enter to the service mode, select item no.“15” and
change data value to adjust “b” to be 1.8 ±0.01Vp-p.
[MCI-VIDEO ADJUSTMENT-2] *
5. Receive the 16-step grey scale MCI signal.
6. Set to MCI mode.
7. Connect an oscilloscope to test point “TP512” (+)
and chassis ground (-).
8. Enter to the service mode, select item no. “15” and
change data value to adjust “b” to be 1.8 ±0.01Vp-p.
[AV-VIDEO ADJUSTMENT-2]
9. Receive the 16-step grey scale video signal.
10. Set to VIDEO mode.
11.Connect an oscilloscope to test point “TP512” (+)
and chassis ground (-).
12. Enter to the service mode, select item no. “15” and
change data value to adjust “b” to be 1.8 ±0.01Vp-p.
(a)
(b)
black level
white level
white level
CG/MCI/AV VIDEO ADJUSTMENT-2

-10-
Electrical Adjustments
[CG WHITE BALANCE ADJUSTMENT]
1. Receive the 16-step grey scale computer signal.
2. Set to COMPUTER mode.
3. Enter to the service mode, select item no. “16” (Red)
or “17” (Blue), and change data values respectively
to make a proper white balance.
[MCIWHITE BALANCE ADJUSTMENT] *
4. Receive the 16-step grey scale MCI signal.
5. Set to MCI mode.
6. Select item no.“16” (Red) or “17” (Blue), and change
data values respectively to make a proper white
balance.
[AVWHITE BALANCE ADJUSTMENT]
7. Receive the 16-step grey scale video signal.
8. Set to VIDEO mode.
9. Select item no.“16” (Red) or “17” (Blue), and change
data values respectively to make a proper white
balance.
Confirm that the same white balance is obtained in
video, MCI and computer mode.
WHITE BALANCE ADJUSTMENT
1. Receive the 16-step gray scale computer signal.
2. Set to COMPUTER mode.
[R-COMMON CENTER ADJUSTMENT]
3. Cover the G and B panel to block the light transit.
4. Adjust VR502 to obtain the minimum flicker on the
picture.
[G-COMMON CENTER ADJUSTMENT]
5. Cover the R and B panel to block the light transit.
6. Adjust VR532 to obtain the minimum flicker on the
picture.
[B-COMMON CENTER ADJUSTMENT]
7. Cover the G and R panel to block the light transit.
8. Adjust VR562 to obtain the minimum flicker on the
picture.
COMMON CENTER ADJUSTMENT
[AV BLACK BALANCE ADJUSTMENT]
1. Receive the 16-step grey scale video signal.
2. Set to VIDEO mode.
3. Enter to the service mode, select item no. “9” (Red)
or “10” (Blue), and change data values respectively
to make a proper white balance at darker part of the
screen.
BLACK BALANCE ADJUSTMENT