Hitachi CP-S830W User manual

HITACHI
CP-S830W
SERVICE
MANUAL
CP-S830E
Caution
Be sure to read this manual before servicing. To assure safety from fire, electric shock, injury, harmful radiation
and materials, various measures are provided in this Hitachi liquid crystal projector. Be sure to read cautionary
items described in the manual to maintain safety before servicing.
Service Warning
. When replace the jamp, to avoid burns to your fingers. The lamp becomes too hot.
. Never touch the lamp bulb with a finger or anything else. Never drop it or give it a shock. They may cause
bursting of the bulb.
. This projector is provided with a high voltage circuit for the lamp. Do not touch the electric parts of power
unit (main), when turn on the projector.
. Do not touch the exhaust fan, during operation.
. The LCD module ass'’y is likely to be damaged. If replacing to the LCD module ass'y, do not hold the FPC of
the LCD module ass'y.
. Features . Block diagram
. Specifications . Wirtng diagram
. Names of each part
. Adjustment
Basic circuit diagram
. Connector connection diagram
. Troubleshooting Disassembly diagram
. Service noints . Replacement parts list
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
Liquid Crystal Projector
August 1998 Image & Information Media Systems Division Yokohama Operation

CP-S830W
CP-S830E
1. Features
p 0.9" polysilicon liquid crystal panel
p> 150W UHB lamp
>» Video input compatible with NTSC/PAL/SECAM video signals
>» RGB input compatible with IBM® PCs, Macintosh® and NEC® PC98 computer signals
p> 2 VIDEO IN systems, 2 RGB IN systems, and 1 RGB OUT system
>» RS232C communication
> Mouse emulation
Liquid crystal
panel
Y/C Y : 1.0Vp-p (75Q termination)
RGB input / Saba eaten
0~200mVrms, 1kQ
Operation ec
Storage : -20~60°C
POWERS COI certetretetceeeteeeeeeceeees 3 Mouse cable <cscccecceeeeteceeeee seen 3
NTSC , 4.43NTSC , PAL, M-PAL , or SECAM
C : 0.286Vp-p (NTSC burst signal, 75Q termination)
output H/V separate (H/V composite: only 15kHz RGB)
Sync signal
TTL level
Speaker output 1W + 1W (stereo)
236 (W) x 105 (H) x288 (O) mm
Remote control eer rrrr error trea RGB signal cable sa nites Sie ei@esintehe easce! eieteield 3.
Accessories
Stereo mini cable Ob ween eceecencewensen 1 S-Video cable See eener cere esrevoscenes 1
2. Specifications
Number of pixels 800 (H) x 600 (V)
Composite 1.0Vp-p (75Q termination}
Video input
Level
0.3Vp-p (PAL/SECAM burst signa!, 75Q termination)
: 200mVrms, 20kQ or less
Audio
Power supply AC100~120V/5A,AC220~240V/2.2A (50/60HzZ)
Batteries LR6 Cece are senescccenatovrorse 2 Video/Audio cable eee en ence enwneas 1
MAC adapter Seance esc ce eee eeeenerenesee

CP-S830W
CP-S830E
3. Names of each part
@Main unit @Operation section
momma MENU button
Picture adjustments.
ea
RESET button
Resets unit to factory settings.
~~ INPUT button
F To select the input source.
: Each time this button is pressed, the input
source is changed in sequence as shown
below.
MUTE
Button
cess
mma
|
RGB1—»
RGB2
—>
VIDEO1
—»
VIDEO?
A
Silences the sound. (Cancels the mute a
when the unit is set in mute mode.) _
LAMP indicator « ees TEMP indicator
This lights or blinks when the lamp does ‘ This lights or blinks when temperature
not light. Inside the projector 1s too high or when fan
is abnormal.
‘tie. ON ot]
See
LAMP
G)
TEMP
on™
“Bere © Q oval
STANDBY / ON DUttON om: me csmmromes
Power ON/OFF button.
OFF sets the unit in standby mode.
von ON indicator
This blinks in the standby mode and lights
in the operation mode.
STANDBY/ON
Speaker Speaker
|
ZOOM knob ...
Adjusts picture size. conser
Remote Control 2c
sensor
|
Ree
eee
eet
Cooling
fan
(exhaust)
Len
s
open
Lens
cap
—(Oy
* Handle
FOCUS knob
@Use the remote control transmitter within fleet ous:
the range of about 16 feet from the remote
control sensor and within 30° to both the
left and right.

CP-S830W
CP-S830E
_ Remote control sensor
oo
AC IN socket”
Connect the provided power cord. Main power ON/OFF switch.
©? OFF
| : ON
RGB input terminal
D-sub 15pin shrink terminal (1/2)
a
RGB output terminal
| D-sub 15pin shrink terminal
: RGB output can be displayed
: even in the standby mode.
©
RGB OUT
VIDEO input terminal o-:1cssmemownbl oe
(on video-equipped models only) cerns
S-VIDEO input terminal d ] CONTROL
Mint DIN 4pin connector (4/2) L ’ L [ae
VIDEO input terminal
E q 00000
RCA Jack (1/2) oe
AUDIO L/R input terminal : | [a L =
RCA Jack (1/2)
CONTROL terminal
D-sub 15pin shrink
© terminal
es 2 ie
: AUDIO output terminal
: (RGB/VIDEO)
Stereo mini Jack
AUDIO input terminal
Stereo mint jack (1/2)

CP-S830W
CP-S830E
@ Remote control transmitter
, MENU STICK SWITCH
" When menu screen is being displayed, an
adjustment item can be selected and adjustment
can also be done using this switch.
When menu screen is not displayed, this switch
can move mouse cursor, and also move picture
vertically or horizontally with the POSITION button
pressed.
STANDBY / ON button ~~.
Power ON/OFF button. 7
OFF
sets
the
unit
in
standby
mode.
RESET
/
RIGHT
button
When displays the on-screen menus, resets the
menu item to factory settings.
When removes the on-screen menus, works as
right quick button.
BRIGHT Button orr-rr2smncmrmmnnmnnnanrene
Adjusts bright.
he
» MENU ON / OFF button
Displays or removes the on-screen menus.
TIMER ON / OFF button r-nmmnnenny
Displays th tting time by count d a
isplays
the
setting
time
by
count
down
CONTRAST
button
Adjusts contrast.
BLANK ON / OFF button 9m
Blanks Picture:, Pressing the button again and “J a
keeping it pressed will reveal picture from top to :
bottom.
vow VOLUME button
Adjusts volume. The sound ts loud or low while
pressing the “/\” or “V’” button.
POSITION MUTE
POSITION Button me enmrnnrinirmmnnnlfomsnnfn women MUTE button
Moves the picture by MENU STICK SWITCH Silences the sound. (cancels the mute when the
when pressing the POSITION button. unit 1s set In mute mode.)
VIDEOQ1/2 RGB1/2
INPUT SELECT button 2.22020
Selects the input source.

CP-S830W
CP-S830E
Function for service
.
are
Press
the
RESET
button
of
the
projector
or
the
TIMER
Displayed
the
operating
time
of
the
lamp
button
of
the
remote
control,
for
3
seconds.
Press
the
RESET
button
of
the
projector
or
the
remote
Reset
the
operating
time
of
the lamp
control
MENU, for 3 seconds.
(During
be displayed
the
operating
time
of
the
lamp.)
Press the
MUTE button
of
the
projector
or the remote
Displayed
the
operating
time
of
the
projector
control,
for 3
seconds.
(During
be displayed
the
operating
time
of
the
lamp.)
When replacing the lamp, Reset the operating time of lamp.
Reset the lamp timer :
Please
carry
out
the
following
operation
within
10
minutes
from
power
on,
if
you
replaced
the
lamp
after
2,000
hours.
1
3
3 1,2
a a
S
RESET, e z | Ros + SI
2
Uh
2
<
Ee
(7
oO lq|o
= |mz
g ay) WO)
— <
XW as):
1) Press the RESET button on projector for 3 seconds or remote 2
control TIMER button for 3 seconds and display the total lamp
used time. | |
2) Press the RESET button on projector or remote control MENU LAMP 1700 hr
ON button during displaying the lamp used time.
3)
Select
the
"0"
on
the
screen
using
the
MENU
((«))
button
or
aetnaeeataen
1700
L]--0
MICANCEL
MENU STICK SWITCH.

CP-S830W
CP-S830E
Message table
On-screen display
The following messages are displayed on the screen.
"CHANGE THE LAMP"
“AFTER REPLACING LAMP, RESET |Lamp has 1,700 hours on it and may need to be changed.
THE LAMP TIMER"
"CHANGE THE LAMP"
"AFTER REPLACING LAMP,
RESET THE LAMP TIMER"
"THE POWER WILL TURN OFF
AFTER 20 Hr."
Blinking of "CHANGE THE LAMP"
"AFTER REPLACING LAMP,
RESET THE LAMP TIMER"
"THE POWER WILL TURN OFF
AFTER 0 Hr."
"NO INPUT IS DETECTED" Signal is not input.
"SYNC IS OUT OF RANGE" ihe penne frequency of the input signal exceeds the range of the projector,
it cannot be displayed.
Lamp has 1,979 hours on it.
See P.4 "Reset the lamp timer"
When the lamp has 2,000 hours or more on it, the message will blink, and the
power will turns off after 10 minutes.

2P-S830W
>P-S830E
Indicator display
The ON indicator, LAMP indicator and TEMP indicator will light or blink in the following cases.
Lights orange | Goesoft___| Goes off | Stancbymode |
[Binks orange | Goes of | Goes of | Dumgcoaing down
If the indicator is still lit, lamp
Lights red Lights red Goes off
may be defective. Replace.
Lights red Blinks red Lamp is not inserted Securely insert the lamp.
. : baat : Correctly reinstall so as not to
Lights red Lights red de too hight
ights re Goes off ights re Temperature insi ig block ventilation holes.
Lights red Blinks red Cooling fan accidented Replace fan.
: ‘
Accumulated
lamp
operation
Replace
lamp
and
reset
the
Blinks
red
Blinks
red
Goes
off
time
has
exceeded
2,000
accumulated
lamp
operation
hours
time.
When inside temperature becomes high because ventilation holes are blocked, normally, TEMP indicator will
light red. However, to protect the projector, the lamp may be turned off and at this time LAMP indecator may
light red.
Cool projector by power off for
60 minutes.
Lamp cannot light

CP-S830W
CP-S830E
4. Adjustment
4-1 Position to be adjusted
R665 ees
R962
R870
R668
BAT
R970
aaae
B
36
36
36 1 R748

CP-S830W
CP-S830E
4-2 White balance adjustment
Preparations for adjustment
1. Setting of condition
@ Apply heat-running for 10 minutes or more before
adjustment.
@ Project 40 inches size image with zoom set to the
widest.
2. Adjustment common voltage (flicker) .
Refer to the attached drawing.
@ Input 16 steps monochrome green with a timing
signal of SVGA VESA(60).
Adjust R748 so that brightness at about 30% part
of 16 steps Is the darkest.
@ Input 16 steps monochrome red with a timing signal
of SVGA VESA(60).
Adjust R848 so that brightness at about 30% part
of 16 steps is the darkest.
Adjustment Procedure
1. Adjustment of white balance.
@ Input 16 steps monochrome green at 0.7Vpp with a
timing signal of SVGA VESA(60).
@Adjust R665(W SUB CONTRAST) and R668(W
SUB BRIGHT) so that brightness of 16 steps is
best,....visual check.
@ Input white at 0.7Vpp with a timing signal of SVGA
VESA(60). And set CONTRAST , BRIGHT to
maximum.
@Major the normally white chromaticity. And note
these number. (x:xw,y:yw)
© Input gray pattern at 0.52Vpp with a timing signal of
SVGA VESA(60).
@Adjust R870(R SUB BRIGHT) and R970(B SUB
BRIGHT) so that the chromaticity at the center of
the picture is x=xw-0.0320.01,y=yw-0.034
0.01 (middle-brightness white balance)
About 30% part of 16 steps is here.
@Press the RESET button of the remote control
transmitter to set picture adjustment to NORMAL.
@Input 16 steps monochrome blue with a timing
signal of SVGA VESA(60).
Adjust R948 so that brightness at about 30% part
of 16 steps is the darkest.
@ Input horizontal green line (gray/black) signal with a
timing signal of SVGA VESA(60).
Adjust R748 so that flicker is the lest.
Adjust it so that flicker is the lest.
GAR
@ Input gray pattern at 0.21Vpp with a timing signal of
SVGA VESA(60).
®Adjust R862(R SUB CONTRAST) and R962(B
SUB CONTRAST) so that the chromaticity at the
center of the picture is x=xw-0.05+0.01,y=yw-
0.05+0.01 (iow-brightness white balance)
@ Repeat (5) to (8) and adjust middle-brightness and
jow-brightness white balance.
note When majoring and adjustment using Minolta
CL-100.
-~10-