Ricoh Mizar-PJ2 cw Series Manual

Slide 1
Y0AS/Y0AT/Y0AV/Y0AY/
Y0AZ/Y0B0/Y0BC
Service Training
Mizar-PJ2
Version 1.0

Slide 2
What Models are there in the Series?
Mizar-PJ2 cw (Y0AT / Y0AZ / Y0BC):
PJ WX5461 / PJ KW5700 / KW5708
4100 lumens, WXGA resolution
Mizar-PJ2 cx (Y0AS / Y0AY):
PJ X5461 / PJ X5300
4000 lumens, XGA resolution
Mizar-PJ2 HD (Y0AV / Y0B0):
PJ HD5451 / PJ HD5900
3800 lumens, 1080P resolution
It is upgraded model from Mizar-PJ1
Described in red are
China only models.

Slide 3
Main Specifications
Mizar－PJ２Mizar－PJ1
cw cx HD CW/CX/HD
CHIP DLP（DDP4421) DLP（DDP4422) DLP（DDP4421/4422）
Brightness 4100lm 4000lm 3800lm 4100/4000/3500lm
Resolution WXGA XGA 1080P XGA/WXGA/1080P
Contrast Dynamic eco 10000:1 Dynamic eco 10000:1
Weight 3.0kg 3.0kg
Lamp life 3000H/4000H(eco) 3000H/4000H(eco)
Keystone Vertical & horizontal vertical
Zoom 1.36×1.1x/1.2x
Lens shift -99%~116% ー
4 point ○ー
Audio 10W 10W
Wireless
LAN － ー
LAN ○ 〇
HDMI 2 ports (only HDMI2 support MHL）1 port
Crestron ○ー
AMX ○ー
•Upgrade point

Slide 4
Features
This product can be installed by users, except
when mounted on a ceiling.
This product is designed for user maintenance.
Regular on-site maintenance is not needed.
There is no display panel, but LEDs show the
symptoms for troubleshooting (blinking/lit,
number of times the LEDs blink, etc).
A service mode is available.

Slide 5
Low Energy Consumption
3,000 hour lamp life in normal mode and 4,000
hour in Eco mode
0.5W power consumption in standby mode

Slide 6
Consumables and Options
Replacement lamp (Y223) *common with Mizar-PJ1
260W mercury lamp
Life: 3,000 hours (normal mode), 4,000 hours
(Eco mode)
» There may be a 50% decrease in brightness at the end
of the lamp’s life.
3D glasses (Y107)
Will also be usable with other DLP-type projector
models to be released in the near future.

Slide 7
Reliability Information
Average monthly projection time: 58.3 hrs/month
2.65 hrs/day x 22 working days/month
Failure Rate
1st year: 0.0024 cases/unit/month
2nd year: 0.0029 cases/unit/month
3rd year: 0.0036 cases/unit/month
The failure rate of a projector increases with its
total power-up time. This is due in part to the
failure characteristics of optical engines in
projectors.
Lamp Life
Normal Mode: 3,000 hrs
Eco Mode: 4,000 hrs

Slide 8
Lamp Near-end/End Alerts
There is no near-end alert.
The lamp end alert occurs when the machine
calculates that the life time has expired.
End alert will appear 30 hours (in Normal mode)
before suggested replacement of lamp.
If the user switches between modes, the machine
calculates when to display the alert based on
how long the lamp was used in each mode.

Slide 9
Disposal of Broken Lamps
Projector lamps normally contain mercury
vapour.
These lamps can rupture due to impact or being
used longer than their life expectancy.
The time that the breakage will occur differs
widely for each lamp and its circumstances of
use.
These lamps must be disposed of in accordance
with local environmental regulations.

Slide 10 10
Overview External View

Slide 11 11
Overview Connection Ports

Slide 12
Operation Panel

Slide 13
Connection Ports
PJ hdl
123
4
5
6
7
8
9
10
1. S-Video IN
2. Computer IN
3. HDMI 2
4. HDMI 1
5. Service port
6. PC Control (D-
sub 9 pin)
7. LAN
8. Audio Out
9. Audio IN
10. Video IN

Slide 14
Optical Components
The DMD chip is the central part of this type of projector.
A DMD chip consists of many small pixel-sized mirrors laid out on a semi-
conductor chip. Light shone on the DMD chip is reflected by all these tiny
mirrors. (For a chip with 1024 x 768 resolution, there are 786,432 small
mirrors.)
Light is shone onto the chip through a fast-spinning color wheel (CW in
the diagram) that has a red sector, a green sector, and a blue sector.
This light is reflected off the chip and out through a lens onto a screen.

Slide 15
DMD Chip
R, G, and B signals from the image generating device are sent to
the DMD chip, and timed so that the red signal arrives at the same
time that the red part of the wheel is in the beam path, and
similarly for the green and blue signals.
The DMD chip generates the R, G, and B images by re-positioning
the micromirrors using micromachined hinges to make different
pixelated images for each colour (meaning that each micromirror
has an ON and an OFF position).
For SVGA resolution, the mirrors are 16-micrometer squares, with
a gap of about 0.8 micrometers between each mirror.

Slide 16
Boards
Main board (MB): Power/signal control and
processing
DMD board (DMD BD): Image signal processing
and DMD control
LVPS (DC-DC): Power supply, passes signals
between boards
LVPS means Low Voltage Power Supply
Lamp driver (Ballast): Starts the lamp
When the lamp is being lit, the voltage is over
10,000V.

Slide 17
Service Training
Basic Points about Service

Slide 18
Swap and Repair
This product is intended for ‘swap-and-repair’.
If the projector needs repairs, it is taken away
from the customer site and a temporary
replacement is provided to the customer.

Slide 19
Antistatic Clothing
To protect the components from damage, wear
anti-static clothing when you disassemble the
machine.

Slide 20
Parts Replacement Hierarchy
This flow chart
describes the order in
which the parts need
to be removed for
replacements/
maintenance from the
top.
The higher the level,
the lesser the parts,
and vice versa.
w_y058m0152
Keypad
board
Top cover
unit Lens cap Lamp
cover Adjustable
foot
Lamp
module
Lamp
housing
Optical
system
unit
Speaker
Start
IR sensor
board
Control
panel
Zoom ring
Lamp cable
Top cover
Base
System fan
Blower fan
FFC cable
Interlock
switch
LVPS
LVPS cable
LVPS
Thermistor
Optical
engine /
Main board
assembly
Focus
ring
IO cover
/IO seal Photo
sensor
board
DMD
fan
Color
wheel