Sony CPD-L181A Service Manual ▷ View online
1-7
Customizing Your Monitor
16
Locking the Controls
The control lock function disables all of the controls except
the u (power) switch, MENU and some other buttons on
the front panel.
the u (power) switch, MENU and some other buttons on
the front panel.
Once you select “LOCK,” you can select only the following
items in the MENU OSD:
• EXIT
• CONTROL LOCK and FACTORY PRESET in the
items in the MENU OSD:
• EXIT
• CONTROL LOCK and FACTORY PRESET in the
OPTION OSD
If you press any locked button, the
mark appears on
the screen.
1
Press the MENU button.
The MENU OSD appears.
The MENU OSD appears.
2
Press the ˘/≥ buttons to select OPTION, and press
the MENU button again.
The OPTION OSD appears.
the MENU button again.
The OPTION OSD appears.
3
Press the ˘/≥ buttons to select
(CONTROL
LOCK).
4
Press the – button to select LOCK.
The OPTION OSD automatically disappears after about 30
seconds.
To close the OSD, press the MENU button twice.
seconds.
To close the OSD, press the MENU button twice.
MENU
MENU
OPTION
: 5SEC
: UNLOCK
: UNLOCK
OSD H POSITION
OPTION
UNLOCK
LOCK
LOCK
CONTROL LOCK
OPTION
: 5SEC
ON
FACTORY PRESET
MENU
MENU
OPTION
: 5SEC
: UNLOCK
: UNLOCK
OSD H POSITION
To cancel the control lock
Press the + button in step 4 to select UNLOCK.
Resetting the Adjustments
You can reset all of the adjustments and settings to the
factory settings.
The color temperature is reset to 9300K, the zoom setting is
reset to FULL 1 mode, and the power saving delay time is
reset to 5 seconds. The control lock is cancelled. All other
adjustments return to the default settings. The on-screen
language, however, does not change.
factory settings.
The color temperature is reset to 9300K, the zoom setting is
reset to FULL 1 mode, and the power saving delay time is
reset to 5 seconds. The control lock is cancelled. All other
adjustments return to the default settings. The on-screen
language, however, does not change.
1
Press the MENU button.
The MENU OSD appears.
The MENU OSD appears.
2
Press the ˘/≥ buttons to select OPTION, and press
the MENU button again.
The OPTION OSD appears.
the MENU button again.
The OPTION OSD appears.
3
Press the ˘/≥ buttons to select ? (FACTORY
PRESET).
PRESET).
4
Press the + button.
The OPTION OSD automatically disappears after about 30
seconds.
To close the OSD, press the MENU button twice.
seconds.
To close the OSD, press the MENU button twice.
MENU
EXIT
PHASE
PITCH
CENTER
PITCH
CENTER
ZOOM/SMOOTHING
COLOR
LANGUAGE
LANGUAGE
MENU
OK
MENU
EXIT
PHASE
PITCH
CENTER
PITCH
CENTER
ZOOM/SMOOTHING
COLOR
LANGUAGE
LANGUAGE
MENU
OK
17
Getting Started
Additional Information
F
D
ES
GB
I
Additional Information
Additional Information
Preset and User Modes
This monitor has factory preset modes for the most popular
industry standards for true “plug and play” compatibility.
(See Appendix for a list of the factory preset modes.)
When a new input signal is entered, the monitor selects the
appropriate factory preset mode and momentarily adjusts
the phase calibration to provide a high quality picture to the
center of the screen. The calibration is stored in memory
and is immediately recalled whenever the same input signal
is received.
For input signals that do not match one of the factory preset
modes, the digital Multiscan technology of this monitor
performs all of the adjustments necessary to ensure that a
clear picture appears on the screen for any timing in the
monitor’s frequency range. However, it may be necessary
to fine tune the vertical/horizontal centering. Simply press
the AUTO button or adjust the monitor according to the
adjustment instructions. The adjustments are stored
automatically as a user mode and recalled whenever the
corresponding input signal is received.
industry standards for true “plug and play” compatibility.
(See Appendix for a list of the factory preset modes.)
When a new input signal is entered, the monitor selects the
appropriate factory preset mode and momentarily adjusts
the phase calibration to provide a high quality picture to the
center of the screen. The calibration is stored in memory
and is immediately recalled whenever the same input signal
is received.
For input signals that do not match one of the factory preset
modes, the digital Multiscan technology of this monitor
performs all of the adjustments necessary to ensure that a
clear picture appears on the screen for any timing in the
monitor’s frequency range. However, it may be necessary
to fine tune the vertical/horizontal centering. Simply press
the AUTO button or adjust the monitor according to the
adjustment instructions. The adjustments are stored
automatically as a user mode and recalled whenever the
corresponding input signal is received.
Power Saving Function
This monitor meets the power-saving guidelines set by
VESA and
VESA and
E
NERGY
S
TAR, as well as the more stringent
NUTEK .
If the monitor is connected to a computer or video graphics
board that is VESA DPMS (Display Power Management
Signaling) compliant, the monitor will automatically reduce
power consumption in three stages as shown below.
You can set the delay time before the monitor enters the
power saving mode using the OSD. Set the time according
to “Setting the Power Saving Delay Time” on page 15.
If the monitor is connected to a computer or video graphics
board that is VESA DPMS (Display Power Management
Signaling) compliant, the monitor will automatically reduce
power consumption in three stages as shown below.
You can set the delay time before the monitor enters the
power saving mode using the OSD. Set the time according
to “Setting the Power Saving Delay Time” on page 15.
*
Power consumption of the monitor only. The figures in
parentheses are power consumption of the monitor including
the AC adapter.
parentheses are power consumption of the monitor including
the AC adapter.
** “Sleep” and “deep sleep” are power saving modes defined by
the Environmental Protection Agency.
*** When your computer enters the power saving mode, the input
signal is cut and NO INPUT SIGNAL appears on the screen.
After the time set in “Changing the Power Saving Delay Time”
(page 15) has elapsed, the monitor enters the power saving
mode.
After the time set in “Changing the Power Saving Delay Time”
(page 15) has elapsed, the monitor enters the power saving
mode.
Troubleshooting
This section may help you isolate the cause of a problem
and as a result, eliminate the need to contact technical
support.
and as a result, eliminate the need to contact technical
support.
On-screen messages
If there is something wrong with the input signal, one of the
following messages appears on the screen. To solve the
problem, see “Trouble symptoms and remedies” on page 18.
following messages appears on the screen. To solve the
problem, see “Trouble symptoms and remedies” on page 18.
“OUT OF SCAN RANGE” indicates that the input signal is
not supported by the monitor’s specifications.
not supported by the monitor’s specifications.
“NO INPUT SIGNAL” indicates that no signal is input to the
monitor.
monitor.
INFORMATION
OUT OF SCAN RANGE
Power consumption
mode
mode
Normal operation
Standby (1st mode)
Suspend (2nd mode)
(sleep)**
(sleep)**
Active-off (3rd mode)***
(deep sleep)**
(deep sleep)**
Power-off
Power
consumption*
consumption*
≤
65 W
(≤
75 W)
≤
1 W
(≤
5 W)
≤
1 W
(≤
5 W)
≤
1 W
(≤
5 W)
≤
1 W
(≤
5 W)
u
Indicator
Green
Green and orange
alternate
alternate
Green and orange
alternate
alternate
Orange
Off
1
2
3
4
5
1-8
18
Additional Information
Trouble symptoms and remedies
If the problem is caused by the connected computer or other equipment, please refer to the connected equipment’s instruction
manual.
Use the self-diagnosis function (page 19) if the following recommendations do no resolve the problem.
manual.
Use the self-diagnosis function (page 19) if the following recommendations do no resolve the problem.
Symptom
Check these items
No picture
If the u indicator is not lit
If the “NO INPUT SIGNAL”
message appears on the screen,
or if the u indicator is either
orange or alternating between
green and orange
message appears on the screen,
or if the u indicator is either
orange or alternating between
green and orange
If the “OUT OF SCAN RANGE”
message appears on the screen
message appears on the screen
If no message is displayed and
the u indicator is green or
flashing orange
the u indicator is green or
flashing orange
If using Windows 95/98
If using a Macintosh system
Picture flickers, bounces,
oscillates, or is scrambled.
oscillates, or is scrambled.
Picture is fuzzy.
Picture is dark.
• Check that the power cord is properly connected.
• Check that the u (power) switch is in the “on” position.
• Check that the u (power) switch is in the “on” position.
• Check that the video signal cable is properly connected and all plugs are firmly seated in
their sockets.
• Check that the input select setting is correct.
• Check that the HD15 video input connector’s pins are not bent or pushed in.
p
• Check that the HD15 video input connector’s pins are not bent or pushed in.
p
Problems caused by the connected computer or other equipment
• The computer is in power saving mode. Try pressing any key on the computer keyboard.
• Check that the computer’s power is “on.”
• Check that your graphics board is completely seated in the proper bus slot.
• Check that the computer’s power is “on.”
• Check that your graphics board is completely seated in the proper bus slot.
p
Problems caused by the connected computer or other equipment
• Check that the video frequency range is within that specified for the monitor. If you
replaced an old monitor with this monitor, reconnect the old monitor and adjust the
frequency range to the following.
Horizontal: 30 – 92 kHz, Vertical: 48 – 85 Hz
frequency range to the following.
Horizontal: 30 – 92 kHz, Vertical: 48 – 85 Hz
• Use the self-diagnosis function (page 19).
• If you replaced an old monitor with this monitor, reconnect the old monitor and do the
following. Install the Windows Monitor Information Disk/Utility Disk and select “CPD-
L181/L181A” from among the Sony monitors in the Windows 95/98 monitor selection
screen.
L181/L181A” from among the Sony monitors in the Windows 95/98 monitor selection
screen.
• Check that the Macintosh adapter and the video signal cable are properly connected
(page 6).
• Press the AUTO button. If this does not work, adjust the pitch and phase (page 10).
• Isolate and eliminate any potential sources of electric or magnetic fields such as other
• Isolate and eliminate any potential sources of electric or magnetic fields such as other
monitors, laser printers, electric fans, fluorescent lighting, or televisions.
• Move the monitor away from power lines or place a magnetic shield near the monitor.
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try turning the monitor 90
• Try plugging the monitor into a different AC outlet, preferably on a different circuit.
• Try turning the monitor 90
°
to the left or right.
p
Problems caused by the connected computer or other equipment
• Check your graphics board manual for the proper monitor setting.
• Confirm that the graphics mode (VESA, Macintosh 21” Color, etc.) and the frequency of
• Confirm that the graphics mode (VESA, Macintosh 21” Color, etc.) and the frequency of
the input signal are supported by this monitor (Appendix). Even if the frequency is
within the proper range, some graphics boards may have a sync pulse that is too narrow
for the monitor to sync correctly.
within the proper range, some graphics boards may have a sync pulse that is too narrow
for the monitor to sync correctly.
• Adjust the computer’s refresh rate (vertical frequency) to obtain the best possible picture.
• Press the AUTO button. If this does not work, adjust the pitch and phase (page 10).
• Adjust the contrast and brightness (page 12).
• Adjust the contrast and brightness (page 12).
• Adjust the backlight (page 15)
• Adjust the brightness (page 12).
• It takes several seconds for the monitor to warm up after the power is turned on. The
• Adjust the brightness (page 12).
• It takes several seconds for the monitor to warm up after the power is turned on. The
picture will appear momentarily.
19
Getting Started
Additional Information
F
D
ES
GB
I
Additional Information
Symptom
Check these items
Picture appears to be ghosting.
Picture is not centered or sized
properly.
properly.
Wavy or elliptical (moire)
pattern is visible.
pattern is visible.
Color is not uniform.
White does not look white.
Monitor buttons do not
operate.
operate.
• Eliminate the use of video cable extensions and/or video switch boxes.
• Check that all plugs are firmly seated in their sockets.
• Check that all plugs are firmly seated in their sockets.
• Press the AUTO button (page 10).
• Adjust the size (page 12) or centering (page 11). Note that some video modes do not fill
• Adjust the size (page 12) or centering (page 11). Note that some video modes do not fill
the screen to the edges.
• Adjust the pitch and phase (page 10).
• Press the AUTO button. If this does not work, adjust the pitch and phase (page 10).
• Adjust the color temperature (page 14).
• If the control lock is set to LOCK, set it to UNLOCK (page 16).
Self-diagnosis function
This monitor is equipped with a self-diagnosis function. If
there is a problem with your monitor or computer(s), the
screen will go blank and the u (power) indicator will either
light up green or flash orange. If the u (power) indicator is
lit in orange, the computer is in power saving mode. Try
pressing any key on the keyboard.
there is a problem with your monitor or computer(s), the
screen will go blank and the u (power) indicator will either
light up green or flash orange. If the u (power) indicator is
lit in orange, the computer is in power saving mode. Try
pressing any key on the keyboard.
If the u (power) indicator is green
1
Disconnect the video signal cable(s).
2
Before the monitor goes to power saving mode,
press the + button and keep it pressed for 2 seconds.
press the + button and keep it pressed for 2 seconds.
If all four color bars appear (white, red, green, blue), the
monitor is working properly. Reconnect the video signal
cable(s) and check the condition of your computer(s).
monitor is working properly. Reconnect the video signal
cable(s) and check the condition of your computer(s).
If the color bars do not appear, there is a potential monitor
failure. Inform your authorized Sony dealer of the
monitor’s condition.
failure. Inform your authorized Sony dealer of the
monitor’s condition.
If the u (power) indicator is flashing
orange
orange
Press the u (power) button to turn the monitor off and
on.
If the u (power) indicator lights up green, the monitor is
working properly.
on.
If the u (power) indicator lights up green, the monitor is
working properly.
If the u (power) indicator is still flashing, there is a
potential monitor failure. Count the number of seconds
between orange flashes of the u (power) indicator and
inform your authorized Sony dealer of the monitor’s
condition. Be sure to note the model name and serial
number of your monitor. Also note the make and model of
your computer and graphics board.
potential monitor failure. Count the number of seconds
between orange flashes of the u (power) indicator and
inform your authorized Sony dealer of the monitor’s
condition. Be sure to note the model name and serial
number of your monitor. Also note the make and model of
your computer and graphics board.
Displaying the INFORMATION OSD
You can confirm the name, the serial number and the year
of manufacture of this monitor.
of manufacture of this monitor.
Press and hold the MENU button for 5 seconds.
The INFORMATION OSD appears.
The INFORMATION OSD appears.
Example
u
(power)
indicator
Model name
Serial number
Week and year of
manufacture
manufacture
INFORMATION
MODEL : CPD-L181A
SER NO : 1234567
MANUFACTURED : 1999-52
SER NO : 1234567
MANUFACTURED : 1999-52
CPD-L181A
SECTION 2
DISASSEMBLY
2-1. CABINET ASSY, SHIELD AND HOLDER J REMOVAL
2-1
2-2. J BOARD REMOVAL
1
Four spacer(small)
Holder, J
2
3
J board
Two screws
(+BVTT 3 x 6)
(+BVTT 3 x 6)
5
Shield(A)
CN302
4
Two screws
(+BVTT 3 x 6)
(+BVTT 3 x 6)
8
Two screws
(+BVTT 3 x 6)
(+BVTT 3 x 6)
3
Ten screws
(+BVTT 3 x 6)
(+BVTT 3 x 6)
6
Seven screws
(+BVTT 3 x 6)
(+BVTT 3 x 6)
9
Holder, J
7
Shield (J)
1
Six screws
(+BVTP 4 x 16)
(+BVTP 4 x 16)
2
Cabinet assy
CPD-L181A
2-4. LIQUID CRYSTAL PANEL MODULE AND H BOARD REMOVAL
2-2
2-3. A BOARD AND GA BOARD REMOVAL
5
H board
4
Cover
2
3
Claw
6
Liquid crystal panel module
Two screws
(+BVTP 3 x 12)
(+BVTP 3 x 12)
1
Four screws
(+BVTP 4 x 12)
(+BVTP 4 x 12)
4
GA board
1
Four screws
(+BVTT 3 x 6)
(+BVTT 3 x 6)
2
A board
3
Four screws
(+BVTT 3 x 6)
(+BVTT 3 x 6)
CN1201
5
Screw
(M2.5 x 4)
(M2.5 x 4)
Click on the first or last page to see other CPD-L181A service manuals if exist.